Connecting assembly for turret-type die bonding device

Abstract

Disclosed in the present invention is a connecting assembly for a turret-type die bonding device. The connecting assembly comprises a third connecting unit (50) and a substrate (60); the substrate (60) is fixedly arranged relative to the ground and extends in the vertical direction; the third connecting unit (50) comprises a second mounting base and a third cross roller guide rail assembly (55), and the second mounting base comprises a second guide rail mounting plate (51), a second motor mounting plate (52), and a tab plate (53); the second guide rail mounting plate (51) and the second motor mounting plate (52) are fixedly connected to each other in an L shape; the tab plate (53) is fixedly connected to the side surface of the second motor mounting plate (52) facing away from the second guide rail mounting plate (51), and the tab plate (53) extends in a direction away from the second guide rail mounting plate (51); the tab plate (53) is configured to be fixedly connected to a bonding head of the turret-type die bonding device; and the second motor mounting plate (52) is configured to be fixedly connected to a second voice coil motor (70b), and the second voice coil motor (70b) can output a driving force in the horizontal direction. The connecting assembly can achieve connection between the voice coil motor and the bonding head, so that the voice coil motor can better drive the bonding head to linearly move in the radial direction of a mounting frame of the turret-type die bonding device.

Description

A connection assembly for a turret-type crystal bonding device Technical Field

[0001] The present invention relates to the field of semiconductor chip processing and packaging, and in particular to a connecting assembly for a turret-type die-bonding device, wherein the connecting assembly is used for connecting a driving motor and a bonding head. Background Art

[0002] The die bonder, also known as a chip mounter, is the most critical and core piece of equipment in the die attach phase of the chip packaging and testing process. The die bonder removes the die from the pre-cut wafer and places it on the corresponding die attach position (die flag) on ​​the lead frame, bonding the die to the lead frame using epoxy. The die bonder's die bonding quality directly impacts the yield and cost of chip packaging and testing, and thus affects subsequent steps like wire bonding. In practice, the higher the unit per hour (UPH) throughput requirement for the chip testing process, the higher the accuracy and speed required of the die bonder. Therefore, a die bonder must meet both die attach accuracy and speed requirements to meet market demand.

[0003] In a turret-type die bonder, at least one bonding head is fixedly connected to a large, disc-shaped mounting frame. When a first motor drives the mounting frame to rotate, it drives the bonding head to the desired position, for example, to the chip pickup or placement position. A second motor then drives the bonding head to move linearly along the mounting frame's radial direction, completing the chip pickup or placement process. To increase chip placement speed, the mounting frame's rotation speed must be as fast as possible, and the second motor must be able to quickly and flexibly drive the bonding head's linear movement along the mounting frame's radial direction. To achieve the required chip placement accuracy, the second motor must be able to flexibly and accurately drive the bonding head's linear movement along the mounting frame's radial direction. Therefore, the drive structure and connection components that enable the second motor to drive the bonding head's linear movement along the mounting frame's radial direction play a significant role in improving the chip placement speed and accuracy of a turret-type die bonder. For example, if the second motor is mounted on the large, disc-shaped mounting frame, the overall weight of the mounting frame increases, resulting in slower rotation and increased energy consumption. For example, in practical applications, it is desirable to enable the same bonding head to move linearly in both horizontal and vertical directions. However, existing turret-type die bonders are unable to achieve this function. Therefore, designing and improving the connection assembly between the second motor and the bonding head to enable the second motor to better drive the bonding head to move linearly along the mounting frame has become a pressing technical challenge for those skilled in the art. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a connecting assembly for a turret-type crystal bonding device, which can realize the connection between the voice coil motor and the bond head, so that the voice coil motor can better drive the bond head to move linearly along the radial direction of the mounting frame of the turret-type crystal bonding device.

[0005] In order to solve the above technical problems, the invention adopts the following technical solutions:

[0006] A connection assembly for a turret-type crystal bonding device is provided, which includes a third connection unit and a base plate; the base plate is fixedly arranged relative to the ground and extends in a vertical direction; the third connection unit includes a second mounting seat and a third cross ball guide rail assembly, the second mounting seat includes a second guide rail mounting plate, a second motor mounting plate and a tongue plate; the second guide rail mounting plate and the second motor mounting plate are fixedly connected to each other in an L-shape; a tongue plate is fixedly connected to a side surface of the second motor mounting plate facing away from the second guide rail mounting plate, and the tongue plate extends in a direction away from the second guide rail mounting plate; the tongue plate is used to connect with the The bonding head of the turret-type crystal bonding device is fixedly connected; the third cross ball guide rail assembly is arranged on the side of the second guide rail mounting plate facing away from the second motor mounting plate and extends in the horizontal direction; the first branch guide rail of the third cross ball guide rail assembly is fixedly mounted on the side of the second guide rail mounting plate facing away from the second motor mounting plate; the second branch guide rail of the third cross ball guide rail assembly is fixedly mounted on the base plate, so that the second guide rail mounting plate can slide linearly in the horizontal direction relative to the base plate; the second motor mounting plate is used to fixedly connect the second voice coil motor, and the second voice coil motor can output a driving force in the horizontal direction.

[0007] Preferably, the third connecting unit also includes a double U-shaped piece; the double U-shaped piece includes a first U-shaped portion and a second U-shaped portion fixedly connected to each other, and the first U-shaped portion and the second U-shaped portion are placed in opposite directions, wherein the first U-shaped portion includes a first bottom, a first extension arm, and a second extension arm, and one end of the first extension arm and one end of the second extension arm are both fixedly connected to the first bottom to form a U shape; the second U-shaped portion includes a second bottom, a second extension arm and a third extension portion, and one end of the second extension arm and one end of the third extension portion are both fixedly connected to the second bottom to form a U shape; the plane where the first U-shaped portion of the double U-shaped piece is located is perpendicular to the plane where the second U-shaped portion is located; the second motor mounting plate and the tongue plate are both fixedly connected to the first extension arm of the double U-shaped piece; the double U-shaped piece is used to be fixedly connected to the bonding head of the turret-type crystal fixing device.

[0008] Further preferably, the third connecting unit also includes a first roller and a second roller; a third threaded hole is provided on the third extension portion of the U-shaped member, and a fourth threaded hole is provided on the second extension arm of the U-shaped member; the first roller is provided on the side of the third extension portion of the double U-shaped member away from the first extension arm, and the second roller is provided on the side of the second extension arm of the double U-shaped member away from the first extension arm, the rotating shaft of the first roller is threadedly connected to the third threaded hole of the U-shaped member, and the rotating shaft of the second roller is threadedly connected to the fourth threaded hole of the U-shaped member, the first roller can rotate around its rotating shaft, and the second roller can rotate around its rotating shaft; the first roller and the second roller are used to be fixedly connected to the bonding head of the turret-type crystal fixing device.

[0009] Further preferably, a seat portion is provided on the third extension portion of the second U-shaped portion of the double U-shaped member, and the seat portion includes a chair plate portion and a chair back portion fixedly connected to each other in an L-shape, and a side surface of the seat portion away from the chair back portion is fixedly connected to the end of the third extension portion and the two are fixedly connected in an L-shape; a first threaded hole is provided on the chair back portion, and a second threaded hole is provided on the first bottom portion of the first U-shaped portion, and the center point of the first threaded hole and the center point of the second threaded hole are located on the same straight line and the apertures of the two are equal, and the first threaded hole and the second threaded hole are both threadedly connected to the first bolt; the spacing between the third threaded hole and the fourth threaded hole can be adjusted by adjusting the first bolt.

[0010] 14. The repairing kit for automotive dents, according to claim 13, wherein the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut.

[0011] Further preferably, the first connecting unit also includes a T-shaped piece; the T-shaped piece is T-shaped as a whole, and the T-shaped piece includes a leg and a head cover, and the leg and the head cover are both plate-shaped, and one end of the leg of the T-shaped piece is fixedly connected to a side surface of its head cover; the second cross arm of the second L-shaped part of the double L-shaped piece is fixedly connected to the end of the leg of the T-shaped piece away from the head cover; the head cover of the T-shaped piece is used to be fixedly connected to the bonding head of the turret-type crystal fixing device.

[0012] Further preferably, the connecting assembly also includes a second connecting unit, the second connecting unit includes a first mounting seat and a first cross ball guide rail assembly, the first mounting seat includes a slide member; the slide member includes a bottom wall and two side walls, the bottom wall and the two side walls are fixedly connected to form a U shape and form a slide member, the slide member extends in the horizontal direction and the opening faces upward; the slide member is fixed relative to the ground; the first cross ball guide rail assembly includes at least two branch rails, the first cross ball guide rail assembly is located in the slide member and extends in the horizontal direction, and the first branch rail of the first cross ball guide rail assembly is fixedly installed at the bottom of the slide member, and the second branch rail of the first cross ball guide rail assembly is fixedly installed on the lower surface of the leg of the T-shaped member, so that the leg of the T-shaped member can slide linearly in the horizontal direction relative to the slide member.

[0013] Further preferably, the first mounting seat also includes a first guide rail mounting plate and a first motor mounting plate; the first guide rail mounting plate and the first motor mounting plate are fixedly connected to each other in an L-shape, the first guide rail mounting plate extends in the vertical direction, and the first motor mounting plate extends in the horizontal direction; the connection between the first guide rail mounting plate and the first motor mounting plate is fixedly connected to the outer side surface of one side wall of the slide member; the first motor mounting plate is used to fix the first voice coil motor, and the first voice coil motor can output a driving force in the vertical direction.

[0014] Further preferably, the second connecting unit also includes a second cross ball guide rail assembly; the second cross ball guide rail assembly includes at least two branch guide rails, the second cross ball guide rail assembly is arranged below the slide groove member and extends along the vertical direction, and the first branch guide rail of the second cross ball guide rail assembly is fixedly mounted on the side of the first guide rail mounting plate facing away from the first motor mounting plate, and the second branch guide rail of the second cross ball guide rail assembly is fixedly mounted on the base plate, so that the first guide rail mounting plate can slide linearly in the vertical direction relative to the base plate.

[0015] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0016] Further preferably, the connecting assembly also includes a sleeve and a bearing; the sleeve includes a sleeve body; the sleeve body is annular; the sleeve is used to be fixedly connected to the bonding head of the turret-type crystal fixing device; along the radial direction of the shaft head, the sleeve body is sleeved on the outside of the shaft head of the transmission shaft, and an annular bearing is provided between the sleeve body and the shaft head of the transmission shaft, so that the sleeve body can rotate around the transmission shaft.

[0017] Further preferably, the connecting assembly also includes a connecting rod; the sleeve also includes a protrusion fixedly connected to the sleeve body; the outer peripheral side surface of the sleeve body is fixedly provided with at least one protrusion extending outward relative to the sleeve body, each protrusion is fixedly connected to one end of a connecting rod, and the end of each connecting rod is used to fixedly connect to a bonding head of the turret-type crystal fixing device.

[0018] Further preferably, the outer peripheral side surface of the sleeve body is fixedly provided with two protrusions extending outward relative to the sleeve body, and the two protrusions are symmetrically arranged, each protrusion is fixedly connected to one end of a connecting rod, and the end of each connecting rod is used to fixedly connect to a bonding head of the turret-type crystal fixing device; the two connecting rods are located on the same straight line passing through the center point of the sleeve body.

[0019] Further preferably, it is characterized in that the protrusion is in the shape of a straight plate, and the protrusion extends outward relative to the shaft sleeve body along the radial direction of the shaft sleeve body.

[0020] Further preferably, the diameter of the circular disk portion of the transmission shaft is larger than the diameter of its shaft head, so that a circular flange portion is formed at the connection between the circular disk portion and the shaft head; along the axial direction of the transmission shaft, the flange portion of the transmission shaft serves to limit the bearing.

[0021] Further preferably, a cover edge is fixedly provided on one end surface of the sleeve body, which extends inwardly along the radial direction of the sleeve body and is annular; along the axial direction of the transmission shaft, the cover edge of the sleeve serves to limit the bearing.

[0022] Any range described in the present invention includes the end value and any numerical value between the end values ​​and any sub-range formed by the end value or any numerical value between the end values.

[0023] Unless otherwise specified, all raw materials in the present invention can be purchased commercially, and the equipment used in the present invention can adopt conventional equipment in the relevant field or refer to the existing technology in the relevant field.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The connection assembly for the turret-type crystal bonding device provided by the present invention can realize the connection between the voice coil motor and the bonding head, so that the voice coil motor can better drive the bonding head to move linearly along the radial direction of the mounting frame of the turret-type crystal bonding device.

[0026] (2) The connection assembly for a turret-type die bonding device provided by the present invention is capable of driving the target die bonding head of the turret-type die bonding device to perform linear motion in different directions. The connection assembly is provided with a third cross-ball guide assembly, a first cross-ball guide assembly, and a slide member, thereby driving the target die bonding head to perform linear motion in a horizontal direction relative to the wafer; the connection assembly is provided with a second cross-ball guide assembly, thereby driving the target die bonding head to perform linear motion in a vertical direction relative to the lead frame. Specifically, the first voice coil motor outputs a driving force in the vertical direction, and drives the first motor mounting plate, the first guide rail mounting plate and the slide member to slide linearly relative to the base plate along the second cross ball guide rail assembly (i.e., along the vertical direction), and the slide member then drives the transmission shaft to move linearly along the vertical direction via the first cross ball guide rail assembly and the T-shaped member; the second voice coil motor outputs a driving force in the horizontal direction, and drives the second guide rail mounting plate, the second motor mounting plate, the tongue plate and the double U-shaped member to slide linearly relative to the base plate along the third cross ball guide rail assembly (i.e., along the horizontal direction), and the double U-shaped member drives the T-shaped member to slide linearly relative to the slide member along the first cross ball guide rail assembly (i.e., along the horizontal direction) via the first roller, the second roller block guide rail and the double L-shaped member, and the T-shaped member then drives the transmission shaft to move linearly along the horizontal direction.

[0027] (3) The connection assembly for a turret-type crystal fixing device provided by the present invention comprises a first connection unit and a third connection unit, wherein the first connection unit comprises a double L-shaped member and a strip-shaped guide rail; the double L-shaped member comprises a first L-shaped portion and a second L-shaped portion fixedly connected to each other, a U-shaped third groove is provided on one side surface of the first vertical arm of the first L-shaped portion, the third groove extends along the vertical direction, and the strip-shaped guide rail is fixedly provided in the third groove; the third connection unit also comprises a first roller and a second roller; the first roller and the second roller are respectively provided on both sides of the strip-shaped guide rail, and the roller surfaces of the first roller and the second roller are respectively in direct contact with the two side surfaces of the strip-shaped guide rail, so that the first roller and the second roller can respectively roll relative to the two side surfaces of the strip-shaped guide rail. By setting the above structure, when the T-shaped member drives the double L-shaped member and the strip-shaped guide rail to move linearly along the vertical direction, the first roller and the second roller roll relative to the strip-shaped guide rail. At the same time, the double U-shaped member can still drive the T-shaped member to slide linearly along the first cross ball guide rail assembly relative to the slide member through the first roller, the second roller, the strip-shaped guide rail and the double L-shaped member, thereby realizing that the T-shaped member can move linearly in both the vertical and horizontal directions at the same time without affecting each other, and further realizing that the transmission shaft can move linearly in both the vertical and horizontal directions at the same time without affecting each other.

[0028] (4) The present invention provides a connection assembly for a turret-type crystal fixing device, wherein the third connection unit can achieve adjustable spacing between the first roller and the second roller by providing a double U-shaped member. Specifically, a seat portion is provided on the third extension portion of the second U-shaped portion of the double U-shaped member, and the seat portion includes a chair plate portion and a chair back portion fixedly connected to each other in an L-shape, and a side surface of the seat portion away from the chair back portion is fixedly connected to the end of the third extension portion, and the two are fixedly connected in an L-shape; a first threaded hole is provided on the chair back portion, and a second threaded hole is provided on the first bottom portion of the first U-shaped portion, and the center point of the first threaded hole and the center point of the second threaded hole are located on the same straight line and have the same aperture, and the first threaded hole and the second threaded hole are both threadedly connected to the first bolt; by adjusting the first bolt, the spacing between the third threaded hole and the fourth threaded hole can be adjusted, and thus the spacing between the first roller and the second roller can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] FIG1 is a perspective schematic diagram of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0031] FIG2 is an exploded schematic diagram of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0032] FIG3 is a second exploded schematic diagram of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0033] FIG4 is a third exploded schematic diagram of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0034] FIG5 is a fourth exploded schematic diagram of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0035] FIG6 is a perspective schematic diagram of a second mounting base of a connecting assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0036] FIG7 is a perspective view of a double U-shaped member of a third connecting unit of a connecting assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0037] FIG8 is a second perspective schematic diagram of a double U-shaped member of a third connecting unit of a connecting assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0038] FIG9 is a fifth exploded schematic diagram of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0039] FIG10 is a partial perspective schematic diagram of a transmission shaft portion of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0040] FIG11 is a perspective schematic diagram of a shaft sleeve of a transmission shaft portion of a connecting assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0041] FIG12 is a schematic diagram of a transmission shaft of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0042] FIG13 is an exploded schematic diagram of a transmission shaft portion of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention;

[0043] 14 is a schematic cross-sectional view of a transmission shaft portion of a connection assembly for a turret-type die bonding device according to an embodiment of the present invention (a cross-sectional view along the axis of the transmission shaft). DETAILED DESCRIPTION

[0044] In order to explain the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. It should be understood by those skilled in the art that the following specific description is illustrative rather than restrictive and should not be used to limit the scope of protection of the present invention.

[0045] As shown in FIG. 1 , FIG. 2 and FIG. 3 , the connection assembly for the turret-type die bonding device provided in this embodiment includes a first connection unit 30 , a second connection unit 40 , a third connection unit 50 , and a base plate 60 .

[0046] As shown in FIG. 3 and FIG. 4 , the first connecting unit 30 includes a T-shaped member 31 , a cover plate 32 , a double L-shaped member 33 , and a bar-shaped guide rail 34 .

[0047] The T-shaped member 31 is T-shaped as a whole, and includes a leg 31a and a head cover 31b. The leg 31a and the head cover 31b are both plate-shaped. One end of the leg 31a of the T-shaped member 31 is fixedly connected to one side of its head cover 31b. The other side of the head cover 31b (i.e., the side facing away from the leg 31a) is provided with a first groove 31c with a semicircular cross section; one side of the cover plate 32 is provided with a second groove 32a with a semicircular cross section. The first groove 31c is fixedly connected to one side of the head cover 31b. c and the second groove 32a match the size of the main body 11 of the transmission shaft 10, the head cover 31b of the T-shaped piece 31 is fixedly connected to the cover plate 32, and the first groove 31c of the head cover 31b of the T-shaped piece 31 and the second groove 32a of the cover plate 32 form a complete circular hole, and the free end of the main body 11 of the transmission shaft 10 is engaged in the first groove 31c and the second groove 32a, so that the main body 11 of the transmission shaft 10 is fixedly connected to the head cover 31b of the T-shaped piece 31.

[0048] As shown in Figure 5, the double L-shaped member 33 includes a first L-shaped portion and a second L-shaped portion fixedly connected to each other, and the first L-shaped portion and the second L-shaped portion are both L-shaped. The first L-shaped portion includes a first horizontal arm 33a and a first vertical arm 33b fixedly connected to each other, and the second L-shaped portion includes a second horizontal arm 33d and a second vertical arm 33e fixedly connected to each other. The end of the first horizontal arm 33a of the first L-shaped portion away from the first vertical arm 33b is fixedly connected to a side surface of the second vertical arm 33e of the second L-shaped portion facing away from the second horizontal arm 33d; the second horizontal arm 33d of the second L-shaped portion is fixedly connected to the end of the leg 31a of the T-shaped member 31 away from the head cover portion 31b; a U-shaped third groove 33c is provided on one side surface of the first vertical arm 33b of the first L-shaped portion, and the third groove 33c extends in the vertical direction. A strip-shaped guide rail 34 is fixedly provided in the third groove 33c, and the strip-shaped guide rail 34 is in the shape of a slender rectangular block.

[0049] As shown in Figures 2, 3 and 4, the second connecting unit 40 includes a first mounting seat, a first cross ball guide rail assembly 44, and a second cross ball guide rail assembly 45. The first mounting seat includes a first guide rail mounting plate 41, a first motor mounting plate 42 and a slide member 43.

[0050] The first guide rail mounting plate 41 and the first motor mounting plate 42 are fixedly connected to form an L-shape. The first guide rail mounting plate 41 extends vertically, while the first motor mounting plate 42 extends horizontally. The slide member 43 includes a bottom wall 43a and two side walls 43b, which are fixedly connected to form a U-shape and form a slide channel 43c. The slide member 43 extends horizontally and opens upward. The connection between the first guide rail mounting plate 41 and the first motor mounting plate 42 is fixedly connected to the outer side of a side wall of the slide member 43. The slide member 43 extends horizontally. The first motor mounting plate 42 is used to securely mount the first voice coil motor 70a, which is capable of outputting a driving force in the vertical direction.

[0051] The first cross ball guide rail assembly 44 includes at least two support rails. The first cross ball guide rail assembly 44 is located in the slide member 43 and extends in the horizontal direction. The first support rail 44a of the first cross ball guide rail assembly 44 is fixedly installed on the bottom of the slide member 43, and the second support rail 44b of the first cross ball guide rail assembly 44 is fixedly installed on the lower surface of the leg 31a of the T-shaped member 31, so that the leg 31a of the T-shaped member 31 can slide linearly in the horizontal direction relative to the slide member 43.

[0052] The second cross ball guide rail assembly 45 includes at least two support rails. The second cross ball guide rail assembly 45 is arranged below the slide groove member 43 and extends in the vertical direction. The first support rail 45a of the second cross ball guide rail assembly 45 is fixedly mounted on the side of the first guide rail mounting plate 41 facing away from the first motor mounting plate 42. The second support rail 45b of the second cross ball guide rail assembly 45 is fixedly mounted on the base plate 60, so that the first guide rail mounting plate 41 can slide linearly in the vertical direction relative to the base plate 60.

[0053] The base plate 60 is fixed relative to the ground and extends in a vertical direction.

[0054] As shown in Figures 3 and 9, the third connecting unit 50 includes a second mounting seat, a double U-shaped member 54, a third cross ball guide rail assembly 55, a first roller 56, and a second roller 57, and the second mounting seat includes a second guide rail mounting plate 51, a second motor mounting plate 52 and a tongue plate 53.

[0055] As shown in Figures 3, 6 and 9, the second guide rail mounting plate 51 and the second motor mounting plate 52 are fixedly connected to each other in an L shape; a tongue plate 53 is fixedly connected to the side surface of the second motor mounting plate 52 facing away from the second guide rail mounting plate 51, and the tongue plate 53 extends in a direction away from the second guide rail mounting plate 51.

[0056] As shown in Figures 7 and 8, the double U-shaped member 54 includes a first U-shaped portion and a second U-shaped portion fixedly connected to each other, and the placement directions of the first U-shaped portion and the second U-shaped portion are opposite (the first U-shaped portion is inverted and the second U-shaped portion is upright as shown in the figure), wherein the first U-shaped portion includes a first bottom portion 54a, a first extension arm 54b, and a second extension arm 54c, and one end of the first extension arm 54b and one end of the second extension arm 54c are fixedly connected to the first bottom portion 54a to form a U shape; the second U-shaped portion includes a second bottom portion 54d, a second extension arm 54c and a third extension portion 54e, and one end of the second extension arm 54c and one end of the third extension portion 54e are fixedly connected to the second bottom portion 54d to form a U shape; the plane where the first U-shaped portion of the double U-shaped member 54 is located is perpendicular to the plane where the second U-shaped portion is located. A seat portion is provided on the third extension portion 54e of the second U-shaped portion of the double U-shaped member 54, and the seat portion includes a chair plate portion 54f and a seat back portion 54g fixedly connected to each other in an L-shape, and a side surface of the seat portion away from the seat back portion 54g is fixedly connected to the end of the third extension portion 54e (i.e., the end away from the second bottom portion 54d), and the two are fixedly connected in an L-shape; the seat back portion 54g is provided with a first threaded hole 54h, and the first bottom portion 54a of the first U-shaped portion is provided with a second threaded hole 54i, and the center point of the first threaded hole 54h and the center point of the second threaded hole 54i are located on the same straight line and the apertures of the two are equal, a first bolt (not shown in the figure) is threadedly connected to the first threaded hole 54h, and a first bolt (not shown in the figure) is threadedly connected to the second threaded hole 54i; a third threaded hole 54j is provided on the third extension portion 54e of the U-shaped member 54, and a fourth threaded hole 54k is provided on the second extension arm 54c of the U-shaped member 54.

[0057] As shown in FIG. 9 , both the second motor mounting plate 52 and the tab plate 53 are fixedly connected to the first extension arm 54 b of the double U-shaped member 54 .

[0058] As shown in Figures 3 and 5, the first roller 56 and the second roller 57 are respectively arranged on both sides of the strip-shaped guide rail 34, and the roller surfaces of the first roller 56 and the second roller 57 are in direct contact with the two side surfaces of the strip-shaped guide rail 34, so that the first roller 56 and the second roller 57 can roll respectively relative to the two side surfaces of the strip-shaped guide rail 34; the first roller 56 is arranged on the side of the third extension portion 54e of the double U-shaped member 54 away from the first extension arm 54b, and the second roller 57 is arranged on the side of the second extension arm 54c of the double U-shaped member 54 away from the first extension arm 54b, the rotating shaft of the first roller 56 is threadedly connected to the third threaded hole 54j of the U-shaped member 54, and the rotating shaft of the second roller 57 is threadedly connected to the fourth threaded hole 54k of the U-shaped member 54, the first roller 56 can rotate around its rotating shaft, and the second roller 57 can rotate around its rotating shaft. By adjusting the first bolt, the distance between the third threaded hole 54 j and the fourth threaded hole 54 k can be adjusted, and further, the distance between the first roller 56 and the second roller 57 can be adjusted.

[0059] As shown in Figures 2 and 9, the third cross-ball guide assembly 55 is disposed on the side of the second guide rail mounting plate 51 facing away from the second motor mounting plate 52 and extends horizontally. The first support rail 55a of the third cross-ball guide assembly 55 is fixedly mounted on the side of the second guide rail mounting plate 51 facing away from the second motor mounting plate 52. The second support rail 55b of the third cross-ball guide assembly 55 is fixedly mounted on the base plate 60, allowing the second guide rail mounting plate 51 to slide linearly in the horizontal direction relative to the base plate 60. The second motor mounting plate 52 is used to fixedly connect to the second voice coil motor 70b, which is capable of outputting a driving force in the horizontal direction.

[0060] When in use, the first voice coil motor 70a outputs a driving force in the vertical direction, and drives the first motor mounting plate 42, the first guide rail mounting plate 41 and the slide member 43 to slide linearly relative to the base plate 60 along the second cross ball guide rail assembly 45 (i.e., along the vertical direction). The slide member 43 then drives the transmission shaft 10 to move linearly in the vertical direction via the first cross ball guide rail assembly 44 and the T-shaped member 31. The second voice coil motor 70b outputs a driving force in the horizontal direction, and drives the second guide rail mounting plate 41 and the slide member 43 to slide linearly relative to the base plate 60 along the second cross ball guide rail assembly 45 (i.e., along the vertical direction). The plate 51, the second motor mounting plate 52, the tongue plate 53 and the double U-shaped member 54 slide linearly relative to the base plate 60 along the third cross ball guide rail assembly 55 (i.e., along the horizontal direction). The double U-shaped member 54 drives the T-shaped member 31 to slide linearly relative to the slide member 43 along the first cross ball guide rail assembly 44 (i.e., along the horizontal direction) via the first roller 56, the second roller 57, the block guide rail 34 and the double L-shaped member 33. The T-shaped member 31 then drives the drive shaft 10 to move linearly in the horizontal direction.

[0061] It should be noted that when the T-shaped member 31 drives the double L-shaped member 33 and the bar-shaped guide rail 34 to move linearly along the vertical direction, the first roller 56 and the second roller 57 roll relative to the bar-shaped guide rail 34. At the same time, the double U-shaped member 54 can still drive the T-shaped member 31 to slide linearly along the first cross ball guide rail assembly 44 (that is, along the horizontal direction) relative to the slide member 43 via the first roller 56, the second roller 57, the bar-shaped guide rail 34 and the double L-shaped member 33, thereby enabling the T-shaped member 31 to move linearly in both the vertical and horizontal directions at the same time without affecting each other, and further enabling the transmission shaft 10 to move linearly in both the vertical and horizontal directions at the same time without affecting each other.

[0062] In a preferred embodiment of this embodiment, as shown in Figures 10, 11, 12, 13, and 14, the connection assembly for the turret-type die bonder provided in this embodiment further includes a transmission shaft 10, a sleeve 20, a bearing 24, and a connecting rod. The sleeve 20 includes a sleeve body 21, a raised portion 22, and a cover edge 25.

[0063] As shown in Figure 12, the transmission shaft 10 is T-shaped as a whole, and the transmission shaft 10 includes a main body 11, a circular disc portion 12 and a shaft head 13; the main body 11 of the transmission shaft 10 is cylindrical, the shaft head 13 is cylindrical and hollow inside, the center position of one side surface of the circular disc portion 12 is fixedly connected to one end of the main body 11, and the other side surface of the circular disc portion 12 is fixedly connected to one end of the shaft head 13; the diameter of the circular disc portion 12 is larger than the diameter of the shaft head 13, so that a circular flange portion 14 is formed at the connection between the circular disc portion 12 and the shaft head 13.

[0064] As shown in Figure 11 , the sleeve body 21 is annular in shape. Two protrusions 22 are fixedly mounted on the outer circumference of the sleeve body 21, extending outward from the sleeve body 21. These protrusions 22 are symmetrically arranged (i.e., they lie on the same line passing through the center of the sleeve body 21). Each protrusion 22 is fixedly connected to one end of a connecting rod 23, which are located on the same line passing through the center of the sleeve body 21. The distal end of each connecting rod 23 (i.e., the end distal from the sleeve 20) is used for fixed connection to a slug (not shown). A cap 25 is fixedly mounted on one end of the sleeve body 21. This cap 25 extends inward in a radial direction (perpendicular to the axis of the sleeve body 21) and is annular in shape. The protrusions 22 are straight and extend outward from the sleeve body 21 in the radial direction of the sleeve body 21.

[0065] Those skilled in the art will readily understand that, depending on actual needs, the outer peripheral side surface of the sleeve body 21 may also be fixedly provided with a raised portion 22 extending outwardly relative to the sleeve body 21. This raised portion 22 is fixedly connected to one end of a connecting rod 23. The distal end of the connecting rod 23 (i.e., the end away from the sleeve 20) is used to fixedly connect to a bonding head (not shown in the figure in this case). Similarly, depending on actual needs, the outer peripheral side surface of the sleeve body 21 of the sleeve 20 may also be fixedly provided with three or more raised portions 22 extending outwardly relative to the sleeve body 21. Each raised portion 22 is fixedly connected to one end of a connecting rod 23. The distal end of each connecting rod 23 (i.e., the end away from the sleeve 20) is used to fixedly connect to a bonding head of the above-mentioned turret-type die bonding device (not shown in the figure in this case).

[0066] Along the radial direction of the shaft head 13 of the drive shaft 10 (this radial direction is perpendicular to the axis of the drive shaft 10), the sleeve body 21 is sleeved on the outside of the shaft head 13 of the drive shaft 10, and an annular bearing 24 is provided between the sleeve body 21 and the shaft head 13 of the drive shaft 10, so that the sleeve body 21 can rotate around the drive shaft 10; along the axial direction of the drive shaft 10, the flange portion 14 of the drive shaft 10 and the cover edge portion 25 of the sleeve 20 both play a limiting role on the bearing 24.

[0067] During use, if the driving force output by the second voice coil motor 70b (or the first voice coil motor 70a) is along, for example, the horizontal direction (or vertical direction), the transmission shaft 10 drives the bearing 40 and the sleeve 20 to move along the horizontal direction (or vertical direction), the sleeve 20 drives the connecting rod 23 to move along the horizontal direction (or vertical direction), and the connecting rod 23 drives the bang head to move along the horizontal direction (or vertical direction), thereby enabling the second voice coil motor 70b (or the first voice coil motor 70a) to drive the bang head to perform linear motion along the horizontal direction (or vertical direction).

[0068] During the operation of the turret-type die bonding device, when the shaft sleeve 20 drives the target bonding head to rotate to the chip picking position via the connecting rod 23, for example, the target bonding head and the connecting rod 23 are in a horizontal direction, and the target bonding head and the connecting rod 23 are both perpendicular to the plane where the wafer (not shown in the figure) is located, the voice coil motor (the first voice coil motor 70a or the second voice coil motor 70b) can drive the target bonding head to perform linear motion relative to the wafer, thereby enabling the target bonding head to pick up the chip; when the shaft sleeve 20 drives the target bonding head to rotate to the chip placement position via the connecting rod 23, for example, the target bonding head and the connecting rod 23 are in a vertical direction, and the target bonding head and the connecting rod 23 are both perpendicular to the plane where the lead frame (not shown in the figure) is located, the voice coil motor (the first voice coil motor 70a or the second voice coil motor 70b) can drive the target bonding head to perform linear motion relative to the lead frame, thereby enabling the target bonding head to place the chip.

[0069] Obviously, the above embodiments of the present invention are merely examples for the purpose of illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not possible to enumerate all embodiments here. Any obvious variations or modifications arising from the technical solution of the present invention remain within the scope of protection of the present invention.

Claims

1. A connection assembly for a turret-type die bonding device, characterized in that: The connection assembly comprises a third connection unit (50) and a base plate (60); the base plate (60) is fixed relative to the ground and extends in a vertical direction; The third connecting unit (50) includes a second mounting seat and a third cross ball guide rail assembly (55), wherein the second mounting seat includes a second guide rail mounting plate (51), a second motor mounting plate (52) and a tongue plate (53); The second guide rail mounting plate (51) and the second motor mounting plate (52) are fixedly connected to each other in an L-shape; a tongue plate (53) is fixedly connected to a side surface of the second motor mounting plate (52) facing away from the second guide rail mounting plate (51), and the tongue plate (53) extends in a direction away from the second guide rail mounting plate (51); the tongue plate (53) is used to be fixedly connected to the bonding head of the turret-type crystal bonding device; The third cross ball guide rail assembly (55) is arranged on the side of the second guide rail mounting plate (51) facing away from the second motor mounting plate (52) and extends in the horizontal direction. The first support rail (55a) of the third cross ball guide rail assembly (55) is fixedly mounted on the side of the second guide rail mounting plate (51) facing away from the second motor mounting plate (52). The second support rail (55b) of the third cross ball guide rail assembly (55) is fixedly mounted on the base plate (60), so that the second guide rail mounting plate (51) can perform linear sliding in the horizontal direction relative to the base plate (60); the second motor mounting plate (52) is used for fixedly connecting to the second voice coil motor (70b), and the second voice coil motor (70b) can output a driving force in the horizontal direction.

2. The connection assembly for a turret-type die bonding device according to claim 1, wherein: The third connecting unit (50) further includes a double U-shaped member (54); The double U-shaped member (54) includes a first U-shaped portion and a second U-shaped portion fixedly connected to each other, and the first U-shaped portion and the second U-shaped portion are placed in opposite directions, wherein the first U-shaped portion includes a first bottom portion (54a), a first extension arm (54b), and a second extension arm (54c), and one end of the first extension arm (54b) and one end of the second extension arm (54c) are fixedly connected to the first bottom portion (54a) to form a U shape; the second U-shaped portion includes a second bottom portion (54d), a second extension arm (54c), and a third extension portion (54e), and one end of the second extension arm (54c) and one end of the third extension portion (54e) are fixedly connected to the second bottom portion (54d) to form a U shape; the plane where the first U-shaped portion of the double U-shaped member (54) is located is perpendicular to the plane where the second U-shaped portion is located; The second motor mounting plate (52) and the tongue plate (53) are both fixedly connected to the first extension arm (54b) of the double U-shaped member (54); the double U-shaped member (54) is used to be fixedly connected to the bonding head of the turret-type crystal bonding device.

3. The connection assembly for a turret-type die bonding device according to claim 2, wherein: The third connecting unit (50) further comprises a first roller (56) and a second roller (57); a third threaded hole (54j) is provided on the third extension portion (54e) of the U-shaped member (54), and a fourth threaded hole (54k) is provided on the second extension arm (54c) of the U-shaped member (54); the first roller (56) is provided on the side of the third extension portion (54e) of the double U-shaped member (54) away from the first extension arm (54b), and the second roller (57) is provided on the second extension arm (54c) of the double U-shaped member (54). On the side of the extension arm (54c) facing away from the first extension arm (54b), the rotating shaft of the first roller (56) is threadedly connected to the third threaded hole (54j) of the U-shaped member (54), and the rotating shaft of the second roller (57) is threadedly connected to the fourth threaded hole (54k) of the U-shaped member (54). The first roller (56) can rotate around its rotating shaft, and the second roller (57) can rotate around its rotating shaft; the first roller (56) and the second roller (57) are used to be fixedly connected to the bonding head of the turret type crystal fixing device.

4. The connection assembly for a turret-type die bonding device according to claim 2, wherein: A seat portion is provided on the third extension portion (54e) of the second U-shaped portion of the double U-shaped member (54), and the seat portion includes a chair plate portion (54f) and a chair back portion (54g) fixedly connected to each other in an L-shape, and a side surface of the seat portion away from the chair back portion (54g) is fixedly connected to the end of the third extension portion (54e), and the two are fixedly connected in an L-shape; the chair back portion (54g) is provided with a first threaded hole (54h), and the first bottom portion (54a) of the first U-shaped portion is provided with a second threaded hole (54i), and the center point of the first threaded hole (54h) and the center point of the second threaded hole (54i) are located on the same straight line and the apertures of the two are equal, and the first threaded hole (54h) and the second threaded hole (54i) are both threadedly connected to the first bolt; the spacing between the third threaded hole (54j) and the fourth threaded hole (54k) can be adjusted by adjusting the first bolt.

5. The connection assembly for a turret-type die-bonding device according to claim 3 or 4, characterized in that: The connection assembly further comprises a first connection unit (30); the first connection unit (30) comprises a double L-shaped piece (33) and a bar-shaped guide rail (34); The double L-shaped member (33) comprises a first L-shaped portion and a second L-shaped portion fixedly connected to each other, the first L-shaped portion and the second L-shaped portion are both L-shaped, the first L-shaped portion comprises a first transverse arm (33a) and a first vertical arm (33b) fixedly connected to each other, the second L-shaped portion comprises a second transverse arm (33d) and a second vertical arm (33e) fixedly connected to each other, an end of the first transverse arm (33a) of the first L-shaped portion away from the first vertical arm (33b) is fixedly connected to a side surface of the second vertical arm (33e) of the second L-shaped portion facing away from the second transverse arm (33d); a U-shaped third groove (33c) is provided on one side surface of the first vertical arm (33b) of the first L-shaped portion, the third groove (33c) extending in a vertical direction, and a bar-shaped guide rail (34) is fixedly provided in the third groove (33c); The first roller (56) and the second roller (57) are respectively arranged on both sides of the strip-shaped guide rail (34), and the roller surfaces of the first roller (56) and the second roller (57) are respectively in direct contact with the two side surfaces of the strip-shaped guide rail (34), so that the first roller (56) and the second roller (57) can respectively roll relative to the two side surfaces of the strip-shaped guide rail (34); the second L-shaped portion of the double L-shaped member (33) is used for fixed connection with the bonding head of the turret-type crystal fixing device.

6. The connection assembly for a turret-type die-bonding device according to claim 5, characterized in that: The first connecting unit (30) further includes a T-shaped member (31); the T-shaped member (31) is T-shaped as a whole, and includes a leg portion (31a) and a head cover portion (31b); the leg portion (31a) and the head cover portion (31b) are both plate-shaped, and one end of the leg portion (31a) of the T-shaped member (31) is fixedly connected to a side surface of the head cover portion (31b); the second cross arm (33d) of the second L-shaped portion of the double L-shaped member (33) is fixedly connected to an end of the leg portion (31a) of the T-shaped member (31) away from the head cover portion (31b); the head cover portion (31b) of the T-shaped member (31) is used for fixedly connecting to the bonding head of the turret-type crystal bonding device.

7. The connection assembly for a turret-type die-bonding device according to claim 6, wherein: The connecting assembly further comprises a second connecting unit (40), the second connecting unit (40) comprising a first mounting seat and a first cross ball guide assembly (44), the first mounting seat comprising a slide member (43); the slide member (43) comprising a bottom wall (43a) and two side walls (43b), the bottom wall (43a) and the two side walls (43b) being fixedly connected to form a U-shape and enclosing a slide member (43c), the slide member (43) extending in a horizontal direction and opening upward; the slide member (43) being fixedly arranged relative to the ground; The first cross ball guide rail assembly (44) includes at least two support rails. The first cross ball guide rail assembly (44) is located in the slide member (43) and extends in the horizontal direction. The first support rail (44a) of the first cross ball guide rail assembly (44) is fixedly installed on the bottom of the slide member (43), and the second support rail (44b) of the first cross ball guide rail assembly (44) is fixedly installed on the lower surface of the leg (31a) of the T-shaped member (31), so that the leg (31a) of the T-shaped member (31) can slide linearly in the horizontal direction relative to the slide member (43).

8. The connection assembly for a turret-type die-bonding device according to claim 7, wherein: The first mounting seat also includes a first guide rail mounting plate (41) and a first motor mounting plate (42); The first guide rail mounting plate (41) and the first motor mounting plate (42) are fixedly connected to each other in an L-shape, the first guide rail mounting plate (41) extends in a vertical direction, and the first motor mounting plate (42) extends in a horizontal direction; the connection between the first guide rail mounting plate (41) and the first motor mounting plate (42) is fixedly connected to the outer side surface of a side wall of the slide member (43); the first motor mounting plate (42) is used for fixedly installing the first voice coil motor (70a), and the first voice coil motor (70a) can output a driving force in the vertical direction.

9. The connection assembly for a turret-type die bonding device according to claim 8, wherein: The second connecting unit (40) further includes a second cross ball guide rail assembly (45); the second cross ball guide rail assembly (45) includes at least two support rails, the second cross ball guide rail assembly (45) is arranged below the slide groove member (43) and extends along the vertical direction, and the first support rail (45a) of the second cross ball guide rail assembly (45) is fixedly mounted on the side of the first guide rail mounting plate (41) facing away from the first motor mounting plate (42), and the second support rail (45b) of the second cross ball guide rail assembly (45) is fixedly mounted on the base plate (60), so that the first guide rail mounting plate (41) can slide linearly in the vertical direction relative to the base plate (60).

10. The connection assembly for a turret-type die bonding device according to claim 9, wherein: The connection assembly further includes a transmission shaft (10); the first connection unit (30) further includes a cover plate (32); The transmission shaft (10) is T-shaped as a whole, and comprises a main body (11), a circular disc (12) and a shaft head (13); the main body (11) of the transmission shaft (10) is cylindrical, the shaft head (13) is cylindrical and hollow inside, the center position of one side of the circular disc (12) is fixedly connected to one end of the main body (11), and the other side of the circular disc (12) is fixedly connected to one end of the shaft head (13); A first groove (31c) with a semicircular cross section is provided on one side of the head cover (31b) of the T-shaped piece (31) facing away from the leg (31a); a second groove (32a) with a semicircular cross section is provided on one side of the cover plate (32); the sizes of the first groove (31c) and the second groove (32a) are both matched with the sizes of the main body (11) of the transmission shaft (10); the head cover (31b) of the T-shaped piece (31) is fixedly connected to the cover plate (32), and the T-shaped piece (31) is fixedly connected to the cover plate (32). 1) and the second groove (32a) of the cover plate (32) form a complete circular hole, and the free end of the main body (11) of the transmission shaft (10) is engaged in the first groove (31c) and the second groove (32a), so that the main body (11) of the transmission shaft (10) is fixedly connected to the head cover (31b) of the T-shaped piece (31); the shaft head (13) of the transmission shaft (10) is used to be fixedly connected to the bonding head of the turret type crystal fixing device.

11. The connection assembly for a turret-type die-bonding device according to claim 10, wherein: The connecting assembly further comprises a sleeve (20) and a bearing (24); the sleeve (20) comprises a sleeve body (21); The shaft sleeve body (21) is annular; the shaft sleeve (20) is used for being fixedly connected to the head of the turret-type crystal fixing device; along the radial direction of the shaft head (13), the shaft sleeve body (21) is sleeved on the outside of the shaft head (13) of the transmission shaft (10), and an annular bearing (24) is provided between the shaft sleeve body (21) and the shaft head (13) of the transmission shaft (10), so that the shaft sleeve body (21) can rotate around the transmission shaft (10).

12. The connection assembly for a turret-type die-bonding device according to claim 11, characterized in that: The connecting assembly also includes a connecting rod; the sleeve (20) also includes a protrusion (22) fixedly connected to the sleeve body (21); the outer peripheral side surface of the sleeve body (21) is fixedly provided with at least one protrusion (22) extending outward relative to the sleeve body (21), each protrusion (22) is fixedly connected to one end of a connecting rod (23), and the end of each connecting rod (23) is used for fixedly connecting a bonding head of the turret-type crystal bonding device.

13. The connection assembly for a turret-type die bonding device according to claim 12, wherein: Two protrusions (22) extending outward relative to the sleeve body (21) are fixedly provided on the outer peripheral side surface of the sleeve body (21), and the two protrusions (22) are symmetrically arranged. Each protrusion (22) is fixedly connected to one end of a connecting rod (23), and the end of each connecting rod (23) is used for fixedly connecting to a bonding head of the turret-type crystal fixing device; the two connecting rods (23) are located on the same straight line passing through the center point of the sleeve body (21).

14. The connection assembly for a turret-type die-bonding device according to claim 12 or 13, characterized in that: The protrusion (22) is in the shape of a straight plate, and the protrusion (22) extends outward relative to the shaft sleeve body (21) along the radial direction of the shaft sleeve body (21).

15. The connection assembly for a turret-type die-bonding device according to claim 10, wherein: The diameter of the circular disc portion (12) of the transmission shaft (10) is larger than the diameter of the shaft head portion (13), so that a circular flange portion (14) is formed at the connection between the circular disc portion (12) and the shaft head portion (13); along the axial direction of the transmission shaft (10), the flange portion (14) of the transmission shaft (10) has a limiting effect on the bearing (24).

16. The connection assembly for a turret-type die bonding device according to claim 11, wherein: A cover edge portion (25) is fixedly provided on one end surface of the shaft sleeve body portion (21). The cover edge portion (25) extends inwardly along the radial direction of the shaft sleeve body portion (21) and is annular. Along the axial direction of the transmission shaft (10), the cover edge portion (25) of the shaft sleeve (20) serves to limit the bearing (24).

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