Pin inserting mechanism and packaging equipment

Abstract

The utility model discloses a pin mechanism and packaging equipment, and relates to the technical field of semiconductor packaging. The pin mechanism comprises a base, a pin limiting piece and a pressing piece, the base is used for placing the DBC, a pin hole is formed in the pin limiting piece in a penetrating mode, the pin limiting piece is placed on the DBC, a pin seat of the DBC is contained in the pin hole in a limiting mode, the first end of a pin is inserted into the pin hole, and the second end of the pin protrudes out of the surface, away from the DBC, of the pin limiting piece. And the pressing piece is driven to move towards one side close to the DBC to drive the contact pin to move synchronously so as to enable the first end of the contact pin to be inserted into a pin seat of the DBC. According to the pin inserting mechanism and the packaging equipment, the problems of low pin inserting efficiency, high operation difficulty and low product yield of manual pin inserting in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor packaging, in particular to a pin insertion mechanism and packaging equipment. Background Art

[0002] Soldering is one of the most critical processes in power semiconductor module packaging. Direct Bonding Copper (DBC) substrates not only have the high thermal conductivity, high electrical insulation, high mechanical strength, and low expansion characteristics of ceramics, but also have the high conductivity and excellent welding performance of oxygen-free copper. They can also be etched with various patterns like PCB circuit boards. Therefore, DBC substrates are widely used in power electronics, high-power modules, aerospace and other fields.

[0003] During use, a DBC requires pins to transmit electrical signals, so soldering the pins to the DBC is an essential step in the package. The current soldering method involves manually clamping the pins with pliers to align and insert them into the DBC. Then, solder paste is applied to the joint between the pins and the DBC, and the solder paste is melted and solidified to weld the pins to the DBC. This manual insertion process is inefficient and difficult to ensure the pins are perpendicular to the DBC. Utility Model Content

[0004] The purpose of the utility model is to provide a pin insertion mechanism and packaging equipment, which can solve the problems of low pin insertion efficiency, great operation difficulty and low product yield in the manual pin insertion technology in the prior art.

[0005] The embodiment of the present utility model is achieved as follows:

[0006] In a first aspect of an embodiment of the present invention, a pin insertion mechanism is provided, comprising a base, a pin stopper, and a pressing member. The base is used to place a DBC. The pin stopper is provided with a pin insertion hole. The pin stopper is placed on the DBC, and the DBC's pin holder is limitedly accommodated in the pin insertion hole. The first end of the pin is inserted into the pin insertion hole, and the second end of the pin protrudes from the surface of the pin stopper away from the DBC. The pressing member is driven toward the side closer to the DBC, driving the pin to move synchronously so that the first end of the pin is inserted into the DBC's pin holder. This pin insertion mechanism can solve the problems of low pin insertion efficiency, high operational difficulty, and low product yield associated with manual pin insertion in the prior art.

[0007] As an implementation method, the pin limiter is provided with a receiving groove on a surface close to the DBC, and the DBC limiter is received in the receiving groove.

[0008] As an implementable embodiment, it further includes a DBC support member, wherein the DBC support member is arranged on the base, and the DBC is placed on the DBC support member.

[0009] As an implementable embodiment, a limiting block is provided on the DBC support member, and the limiting block abuts against the pin limiting member to limit the pin limiting member.

[0010] As an implementable embodiment, a connection hole is provided on the limit block, and a mounting hole is provided on the DBC support member. Fasteners are sequentially passed through the connection hole and the mounting hole to enable the limit block and the DBC support member to be detachably connected.

[0011] As an implementation method, the limit block includes a first sub-limit block and a second sub-limit block that are perpendicular to each other, the first sub-limit block extends along the width direction of the DBC, and the second sub-limit block extends along the length direction of the DBC.

[0012] As an implementable embodiment, the number of the first sub-limiting blocks is at least two, and the at least two first sub-limiting blocks are arranged opposite to each other on two sides of the DBC.

[0013] As an implementation method, it further includes a driving member, which is in transmission connection with the pressing member and is used to drive the pressing member to move relative to the DBC.

[0014] As an implementation method, it further includes a guide member, and the pressing member is slidably connected to the guide member to guide the movement direction of the pressing member.

[0015] The second aspect of the present invention provides a packaging device including the above-mentioned pin insertion mechanism, which can solve the problems of low pin insertion efficiency, high operating difficulty, and low product yield in the prior art manual pin insertion.

[0016] The beneficial effects of the embodiments of the present utility model include:

[0017] The pin insertion mechanism includes a base, a pin limiter and a pressing member. The base is used to place the DBC. The pin limiter is provided with a pin hole. The pin limiter is placed on the DBC, and the needle seat of the DBC is limited and accommodated in the pin hole. The first end of the pin is inserted into the pin hole, and the second end of the pin protrudes from the surface of the pin limiter away from the DBC. The pressing member is driven to move toward the side close to the DBC, driving the pin to move synchronously so that the first end of the pin is inserted into the needle seat of the DBC. Compared with the prior art connection method of manually connecting the pins one by one directly to the needle holder, the operation steps provided in any of the above embodiments are to insert the pins into the pin holes. Since the aperture of the pin holes is larger than the aperture of the needle holder, the operation is simpler. At the same time, whether the pressing part drives the pins to move synchronously or drives the DBC to move synchronously, it can realize the connection of multiple pins and the needle holder at one time, so the connection efficiency is higher. In addition, in the process of relative movement between the above-mentioned pins and the needle holder, the pin holes on the pin limiter can also guide and limit the relative movement of the two, thereby ensuring that the pins are perpendicular to the DBC, thereby improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is one of the structural diagrams of the pin insertion mechanism provided in an embodiment of the present utility model;

[0020] Figure 2 This is a second structural diagram of the pin insertion mechanism provided in an embodiment of the present utility model;

[0021] Figure 3 The third structural diagram of the pin insertion mechanism provided by the embodiment of the present utility model;

[0022] Figure 4 This is the fourth structural diagram of the pin insertion mechanism provided in an embodiment of the present utility model.

[0023] Icon: 100-pin mechanism; 10-base; 20-pin limiter; 21-pin hole; 22-accommodation groove; 30-pressing member; 40-DBC support member; 40a-mounting hole; 41-limiting block; 41a-connecting hole; 411-first sub-limiting block; 412-second sub-limiting block; 50-driving member; 60-guide member; 200-DBC; 300-pin. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections, indirect connections through an intermediate medium, or connections within two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Please refer to Figures 1 to 4 The pin insertion mechanism 100 includes a base 10, a pin stopper 20, and a pressing member 30. The base 10 is used to place the DBC 200. The pin stopper 20 is provided with a pin insertion hole 21. The pin stopper 20 is placed on the DBC 200, and the DBC 200's needle holder is limitedly accommodated in the pin insertion hole 21. The first end of the pin 300 is inserted into the pin insertion hole 21, and the second end of the pin 300 protrudes from the surface of the pin stopper 20 away from the DBC 200. The pressing member 30 is driven toward the side closer to the DBC 200, driving the pin 300 to move synchronously so that the first end of the pin 300 is inserted into the needle holder of the DBC 200. This pin insertion mechanism 100 can solve the problems of low efficiency, difficulty in operation, and low product yield in the prior art manual pin insertion.

[0031] It should be noted that if Figure 1 As shown, the pin insertion mechanism 100 includes a base 10, which plays the role of carrying and supporting the DBC200. Figures 2 to 4 As shown, the pin mechanism 100 further includes a pin stopper 20, and a pin hole 21 is provided through the pin stopper 20 to guide and limit the relative movement of the pin 300 and the needle seat through the pin hole 21. Figure 1 As shown, the pin insertion mechanism 100 further includes a pressing member 30 , which presses down the pin 300 , thereby driving the pin 300 to move relative to the needle seat.

[0032] For example, in this embodiment, the pin 300 can be first inserted into the pin hole 21 on the pin stopper 20, and then the DBC200 can be snapped onto the surface of the pin stopper 20. During this process, it is necessary to ensure that the needle seat of the DBC200 is positioned within the pin hole 21. Then, the entire body formed by the DBC200 and the pin stopper 20 is turned over to place the DBC200 on the base 10. At this time, the end of the pin 300 away from the needle seat (i.e., the second end) can be exposed within the operating range of the pressing member 30, and, The second end of the pin 300 is in an extended state protruding from the surface of the pin limiter 20 away from DBC200. Then, by driving the pressing member 30 to move toward the side close to DBC200, when the pressing member 30 contacts the second end of the pin 300, the pin 300 can be driven to move synchronously, so that the first end of the pin 300 is inserted into the needle seat of DBC200. Finally, by driving the pressing member 30 to move toward the side away from DBC200, the DBC200 product with the pin 300 inserted into the needle seat can be taken out.

[0033] Alternatively, in another embodiment, the base 10, DBC200 and the pin limiter 20 can be directly stacked in sequence. During this process, it is necessary to pay attention to placing the pin holder of the DBC200 in the pin hole 21, and then inserting the pin 300 into the pin hole 21 on the pin limiter 20. At this time, the first end of the pin 300 can still be inserted into the pin hole 21, and the second end of the pin 300 protrudes from the surface of the pin limiter 20 away from the DBC200. After that, the pin 300 can be driven by the pressing member 30 to contact the second end of the pin 300. or, in another embodiment, the step of turning over the whole formed by DBC200 and the pin limiter 20 provided in this embodiment can be omitted, and the pin 300 can be directly plugged into the needle seat by driving the DBC200 to move synchronously after the pressing member 30 contacts the DBC200. In essence, as long as the pin 300 and the needle seat can move relative to each other, whether the pressing member 30 drives the pin 300 to move or the pressing member 30 drives the DBC200 to move, the purpose of plugging can be achieved.

[0034] Compared with the prior art connection method of manually connecting the pins 300 one by one directly to the needle holder, the operation steps provided in any of the above embodiments are to insert the pins 300 into the pin holes 21. Since the aperture of the pin holes 21 is larger than the aperture of the needle holder, the operation is simpler. At the same time, whether the pressing member 30 drives the pins 300 to move synchronously or drives the DBC200 to move synchronously, it can realize the connection of multiple pins 300 and the needle holder at one time, so the connection efficiency is higher. In addition, in the process of relative movement between the above-mentioned pins 300 and the needle holder, the pin holes 21 on the pin limiting member 20 can also guide and limit the relative movement of the two, thereby ensuring that the pins 300 are perpendicular to the DBC200, thereby improving the product yield.

[0035] For example, Figure 2 As shown, in this embodiment, the number of the pin holes 21 on the pin stopper 20 is greater than or equal to the number of the pin seats on the DBC200, so as to ensure that the pin stopper 20 can be applied to more DBC200 products; in addition, for example, Figure 1 As shown, in this embodiment, the orthographic projection area of ​​the pin limiter 20 on the base 10 and the orthographic projection area of ​​the pressure member 30 on the base 10 are greater than or equal to the orthographic projection area of ​​the DBC200 on the base 10, so as to ensure that the pressure member 30 can exert a downward pressure on all pins 300 or DBC200, thereby improving the plug-in efficiency and force uniformity.

[0036] As an implementable method, Figure 2 and Figure 3As shown, the pin retainer 20 has a receiving groove 22 on its surface near the DBC 200. The DBC 200 is positioned within the receiving groove 22. This serves to limit the DBC 200, thereby preventing lateral movement of the DBC 200 relative to the pin retainer 20. This ensures that the pins 300 are perpendicular to the DBC 200, improving the yield rate of the DBC 200 product. The shape and size of the receiving groove 22 should be selected and designed based on the shape and size of the DBC 200 and are not specifically limited here.

[0037] As an implementable method, Figures 1 to 4 As shown, the pin mechanism 100 also includes a DBC support member 40, which is arranged on the base 10, and the DBC200 is placed on the DBC support member 40, so that the DBC200 is supported and supported by the DBC support member 40, and the DBC support member 40 cooperates with the pressing member 30 to exert an extrusion effect on the DBC200 and the pin 300 from the opposite sides of the whole formed by the DBC200.

[0038] In the above process, the role played by the DBC support 40 is the same as that played by the base 10; as an embodiment, Figures 2 to 4 As shown, a limit block 41 is provided on the DBC support member 40, and the limit block 41 abuts against the pin limit member 20 to limit the pin limit member 20, so as to limit the whole formed by the pin limit member 20 and DBC200 through the DBC support member 40, thereby avoiding lateral movement of the whole formed by the pin limit member 20 and DBC200 relative to the base 10, further ensuring the yield when the pin 300 is plugged into the DBC200.

[0039] As an implementable method, Figure 4 As shown, the limit block 41 is provided with a connection hole 41a, and the DBC support member 40 is provided with a mounting hole 40a. Fasteners are sequentially inserted into the connection hole 41a and the mounting hole 40a, so that the limit block 41 and the DBC support member 40 are detachably connected. In this way, the limit block 41 can be adjusted according to the actual size of the entire body formed by the pin limit member 20 and the DBC 200, thereby ensuring that the limit block 41 can always play a limiting and supporting role for the entire body formed by the pin limit member 20 and the DBC 200. For example, in some embodiments, there are multiple mounting holes 40a, so that the connection holes 41a on the limit block 41 can be connected to the mounting holes 40a at different positions, thereby realizing the change of the position of the limit block 41; or, in other embodiments, the connection holes 41a can be waist-shaped holes, so that they can be locked at different positions of the waist-shaped holes by fasteners, thereby realizing the change of the position of the limit block 41.

[0040] As an implementable method, Figure 4 As shown, the stopper 41 includes a first sub-stopper 411 and a second sub-stopper 412, which are perpendicular to each other. The first sub-stopper 411 extends along the width of the DBC 200, and the second sub-stopper 412 extends along the length of the DBC 200, thereby limiting the position of the DBC 200 in different directions. It is also important to note that along the height direction of the DBC 200, the surface of the stopper 41 away from the DBC support 40 at least protrudes above the surface of the plug-in stopper close to the DBC support 40, ensuring that the stopper 41 can limit the entire assembly formed by the pin stopper 20 and the DBC 200.

[0041] As an implementable method, Figure 4 As shown, there are at least two first sub-limiting blocks 411, which are disposed oppositely on opposite sides of the DBC 200. For example, in some embodiments, the first sub-limiting block 411 on one side of the DBC 200 can be fixed, and the position of the first sub-limiting block 411 on the other side of the DBC 200 can be adjusted to allow the opposite sides of the DBC 200 to abut against the first sub-limiting blocks 411 on the opposite sides, thereby achieving the limiting purpose of the limit block 41.

[0042] As an implementable method, Figure 1 As shown, the pin insertion mechanism 100 further includes a driver 50, which is in transmission connection with the hold-down member 30 and is configured to drive the hold-down member 30 to move relative to the DBC 200. For example, in this embodiment, the driver 50 is a screw-slider module that converts the rotation of the motor into the movement of the slider, thereby enabling the hold-down member 30 to move upward and downward. Of course, in other embodiments, the driver 50 may also be a device inherently capable of linear motion, such as a pneumatic cylinder, a hydraulic cylinder, an oil-hydraulic cylinder, or a linear motor.

[0043] As an implementable method, Figure 1 As shown, the pin insertion mechanism 100 further includes a guide member 60, with the push-down member 30 being slidably connected to the guide member 60, which is used to guide the movement direction of the push-down member 30, thereby further preventing the pin 300 from being biased. For example, in this embodiment, the base 10 is provided with a mounting seat perpendicular to the base 10, and the guide member 60 is a slide rail fixedly mounted on the mounting seat. The push-down member 30 is slidably connected to the slide rail, so that the push-down member 30 always moves up and down along the extension direction of the slide rail.

[0044] The embodiment of the present application further provides a packaging device, comprising the above-mentioned pin insertion mechanism 100. Since the structure and beneficial effects of the pin insertion mechanism 100 have been described in detail in the above-mentioned embodiment, they will not be repeated here.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pin insertion mechanism, characterized in that: It includes a base, a pin limiter and a pressing member, the base is used to place the DBC, the pin limiter is provided with a pin hole, the pin limiter is placed on the DBC, and the needle seat of the DBC is limited and accommodated in the pin hole, the first end of the pin is inserted into the pin hole, and the second end of the pin protrudes from the surface of the pin limiter away from the DBC, the pressing member is driven to move toward the side close to the DBC, driving the pin to move synchronously so that the first end of the pin is inserted into the needle seat of the DBC.

2. The pin insertion mechanism according to claim 1, characterized in that: The surface of the pin limiter close to the DBC is provided with an accommodating groove, and the DBC limiter is accommodated in the accommodating groove.

3. The pin insertion mechanism according to claim 1, characterized in that: It also includes a DBC support member, which is arranged on the base and the DBC is placed on the DBC support member.

4. The pin insertion mechanism according to claim 3, characterized in that: A limiting block is provided on the DBC support member, and the limiting block abuts against the pin limiting member to limit the pin limiting member.

5. The pin insertion mechanism according to claim 4, characterized in that: The limit block is provided with a connection hole, and the DBC support is provided with a mounting hole. Fasteners are sequentially passed through the connection hole and the mounting hole to enable the limit block and the DBC support to be detachably connected.

6. The pin insertion mechanism according to claim 4, characterized in that: The limiting block includes a first sub-limiting block and a second sub-limiting block that are perpendicular to each other, the first sub-limiting block extends along the width direction of the DBC, and the second sub-limiting block extends along the length direction of the DBC.

7. The pin insertion mechanism according to claim 6, characterized in that: The number of the first sub-limiting blocks is at least two, and the at least two first sub-limiting blocks are arranged opposite to each other on two sides of the DBC.

8. The pin insertion mechanism according to claim 1, characterized in that: It also includes a driving member, which is in transmission connection with the pressing member and is used to drive the pressing member to move relative to the DBC.

9. The pin insertion mechanism according to claim 1, characterized in that: It also includes a guide member, and the pressing member is slidably connected to the guide member to guide the movement direction of the pressing member.

10. A packaging device, characterized in that: It comprises the pin insertion mechanism according to any one of claims 1 to 9.

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