Chip carrier tape
By setting anti-collision grooves at the corners of the receiving slot of the carrier unit, the problem of inaccurate positioning caused by chip flipping during placement is solved, achieving stable chip limit and accurate positioning, improving the grasping accuracy of automated equipment and chip protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, chips are prone to flipping when placed in the carrier tape groove, resulting in inaccurate positioning, affecting the grasping accuracy of subsequent automated equipment, and potentially causing physical damage to the chip.
A chip carrier tape is designed, with a receiving groove on the carrier tape unit that is adapted to the shape of the chip, and anti-collision grooves at the corners of the receiving groove. The corners of the chip can be accommodated in the anti-collision grooves. The corners of the chip are limited by point contact through the groove wall of the anti-collision groove to prevent flipping, and at the same time, the chip is limited and fixed in the horizontal direction.
This effectively prevents the chip from flipping during placement, ensuring positioning accuracy, increasing the chip's pick-up corner space, avoiding rigid collisions between the chip and the carrier unit, reducing chip jamming, and improving the gripping accuracy of automated equipment and chip protection.
Smart Images
Figure CN224045962U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of carrier tape, in particular to a chip carrier tape. BACKGROUND
[0002] As a core component in the field of electronic packaging, carrier tape is a continuous strip product with a specific thickness, mainly made of PS (polystyrene), ABS (acrylonitrile-butadiene-styrene copolymer), PC (polycarbonate) and other plastic or other plastic materials by one-piece molding. Along the length direction, there are grooves for holding small electronic components at equal intervals, and the grooves are covered with sealing tape to form a closed space to prevent electronic components from falling off during transportation and storage.
[0003] In the chip manufacturing process, after the wafer is cut into single chips, it will be accurately sorted and placed in the carrier tape groove for subsequent processing. However, in the chip mounting process of the prior art, the chip is prone to flip during placement, which causes the pins of the chip to fail to accurately align with the carrier tape groove. Positioning deviation can cause the chip to be stuck in the groove, which not only affects the grabbing accuracy of subsequent automated equipment, but also may cause physical damage to the chip. Once such problems occur, it may interrupt the chip manufacturing process, or even directly cause the chip to be scrapped, resulting in significant economic losses and efficiency losses for the semiconductor industry. CONTENT OF THE INVENTION
[0004] The purpose of the present application is to provide a chip carrier tape that can solve the problem of inaccurate positioning caused by the chip flipping during the process of placing the chip in the carrier tape groove.
[0005] The embodiments of the present application are implemented as follows:
[0006] In a first aspect, the present application provides a chip carrier tape, which includes a carrier tape unit, the carrier tape unit is provided with a containing groove for accommodating a chip, the shape of the containing groove and the chip are matched, and the containing groove is provided with an anti-collision groove at the corner, and the corner of the chip can be accommodated in the anti-collision groove. The chip carrier tape can solve the problem of inaccurate positioning caused by the chip flipping during the process of placing the chip in the carrier tape groove.
[0007] As an implementable manner, the shape of the containing groove and the chip is rectangular, the anti-collision groove is provided at the four corners of the containing groove, and the four corners of the chip are correspondingly accommodated in the anti-collision grooves at the four corners of the containing groove.
[0008] As an implementable manner, the shape of the anti-collision groove is circular, and the normal projection parts of the anti-collision groove and the containing groove on the carrier tape unit are coincident.
[0009] As an implementable mode, the carrier tape unit is provided with a first positioning hole for positioning with the material gun or the machine gear.
[0010] As an implementable mode, the receiving groove is provided with a second positioning hole on the side away from the opening of the receiving groove, which is used for positioning with the material gun or the machine positioning device.
[0011] As an implementable mode, the carrier tape unit is rectangular in shape, and the receiving groove is located in the central region of the carrier tape unit.
[0012] As an implementable mode, the number of carrier tape units is multiple, and the multiple carrier tape units are sequentially detachably connected to form a carrier tape body.
[0013] As an implementable mode, the receiving groove is provided with a first clamping portion and a second clamping portion on the side away from the opening of the receiving groove. The first clamping portion of a previous carrier tape unit is clamped with the second clamping portion of a subsequent carrier tape unit along the connecting line direction of the first clamping portion and the second clamping portion, so that the two adjacent carrier tape units are detachably connected.
[0014] As an implementable mode, the first clamping portion is a protrusion, and the second clamping portion is a groove corresponding to the protrusion; or the first clamping portion is a groove, and the second clamping portion is a protrusion corresponding to the groove.
[0015] As an implementable mode, a cover tape is further included, which is arranged on the carrier tape unit, and the carrier tape unit and the cover tape jointly form a closed cavity.
[0016] The beneficial effects of the embodiments of the present application include:
[0017] The chip carrier tape includes a carrier tape unit, and the carrier tape unit is provided with a receiving groove for receiving a chip. The shape of the receiving groove and the chip is matched, and the receiving groove is provided with an anti-collision groove at a corner. The corner of the chip can be received in the anti-collision groove. When the chip falls into the receiving groove, the side of the chip is attached to the groove wall of the receiving groove, thereby realizing limiting and fixing in the horizontal direction (or X-axis and Y-axis). At the same time, the corner of the chip is correspondingly embedded in the anti-collision groove, so as to realize point contact limiting of the corner of the chip by the groove wall of the anti-collision groove, thereby avoiding rotation (or overturning) of the chip around the vertical direction (or Z-axis). When a picking device (such as a suction nozzle) sucks the chip and rotates by a certain angle, the corner of the chip can rotate freely in the anti-collision groove, thereby improving the picking rotation angle space of the chip, so as to avoid rigid collision between the corner of the chip and the carrier tape unit, thereby causing the chip to be stuck. After the chip rotates to a target angle, the chip can be limited from further rotating by the anti-collision groove, thereby ensuring positioning accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 The structural schematic diagram of the carrier tape unit provided by the embodiments of the present application is shown in the figure.
[0020] Figure 2 The structural schematic diagram of the carrier tape body provided by the embodiments of the present application is shown in the figure.
[0021] Figure 3 The structural schematic diagram of the carrier tape body provided by the embodiments of the present application is shown in the figure.
[0022] Figure 4 The structural schematic diagram of the cover tape provided by the embodiments of the present application is shown in the figure.
[0023] Figure: 10-carrier tape unit; 11-housing groove; 111-second positioning hole; 112-first clamping part; 113-second clamping part; 12-anti-collision groove; 13-first positioning hole; 20-carrier tape body; 30-cover tape. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. The terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0027] Please refer to Figures 1 to 3 The chip carrying tape provided by the embodiments of the present application includes a tape unit 10, which is used to carry chips as a carrier for the chips to provide physical support for the chips during transportation, storage and processing of the chips. For example, the tape unit 10 can be integrally molded by PS, ABS, PC or other plastic materials, and has a certain thickness and mechanical strength. The tape unit 10 is provided with a receiving groove 11, which is accurately matched with the shape of the chip (such as a rectangle or a square), including the contour, corner and pin position of the chip, so as to receive the chip and limit the chip in the horizontal direction (or X-axis and Y-axis). On this basis, the tape unit 10 is also provided with a collision prevention groove 12, which is located at the corner of the receiving groove 11 to receive the corner of the chip.
[0028] It should be noted that, as Figures 1 to 3 shown, the chip carrying tape includes a tape unit 10, which is used to carry chips as a carrier for the chips to provide physical support for the chips during transportation, storage and processing of the chips. For example, the tape unit 10 can be integrally molded by PS, ABS, PC or other plastic materials, and has a certain thickness and mechanical strength. The tape unit 10 is provided with a receiving groove 11, which is accurately matched with the shape of the chip (such as a rectangle or a square), including the contour, corner and pin position of the chip, so as to receive the chip and limit the chip in the horizontal direction (or X-axis and Y-axis). On this basis, the tape unit 10 is also provided with a collision prevention groove 12, which is located at the corner of the receiving groove 11 to receive the corner of the chip.
[0029] In actual use, when the chip falls into the accommodating groove 11, the side edges of the chip are in abutment with the groove walls of the accommodating groove 11, so that the chip is limited and fixed in the horizontal direction (or X-axis and Y-axis), and meanwhile, the corners of the chip are embedded into the anti-collision grooves 12, so that the groove walls of the anti-collision grooves 12 limit the corners of the chip in point contact, thereby avoiding rotation (or overturning) of the chip around the vertical direction (or Z-axis); when the picking device (such as a suction nozzle) picks up the chip and rotates by a certain angle, the corners of the chip can rotate freely in the anti-collision grooves 12, so that the picking rotation angle space of the chip can be improved, thereby avoiding rigid collision between the corners of the chip and the carrier tape unit 10, and causing the chip to be stuck.
[0030] As an implementable manner, as shown in Figure 1 and Figure 2 , the shapes of the accommodating groove 11 and the chip are both rectangular, the anti-collision grooves 12 are arranged at the four corners of the accommodating groove 11, and the four corners of the chip are embedded into the anti-collision grooves 12 at the four corners of the accommodating groove 11 one by one.
[0031] It should be noted that, taking the shapes of the accommodating groove 11 and the chip as rectangular as an example, the length and width dimensions of the accommodating groove 11 are adapted to the length and width dimensions of the chip, and the groove walls of the accommodating groove 11 are in abutment with the side edges of the chip, so that the length direction (or X-axis) and the width direction (or Y-axis) of the chip are limited by the groove walls of the accommodating groove 11, thereby preventing the chip from translating in the carrier tape unit 10. The anti-collision grooves 12 (such as circular or arc-shaped) at the four corners of the accommodating groove 11 correspond to the four right-angled corners of the chip one by one, and the dimensions of the anti-collision grooves 12 are adapted to the dimensions of the corners of the chip (such as the radius of the anti-collision grooves 12 being slightly larger than the rounding radius of the chip), so that the corners of the chip are embedded, thereby limiting the rotation freedom (or overturning) of the chip around the vertical axis (or Z-axis).
[0032] In actual use, when the chip falls into the accommodating groove 11, the four groove walls of the accommodating groove 11 limit the translation of the chip, and meanwhile, the four corners of the chip are embedded into the corresponding anti-collision grooves 12, and the groove walls of the anti-collision grooves 12 limit the corners of the chip in radial blocking, thereby preventing the chip from rotating around the vertical axis (or Z-axis), so that the double fixation of planar limitation and angular limitation is realized, and the problem of inaccurate positioning caused by overturning of the traditional carrier tape is solved; when it is necessary to adjust the angle of the chip (such as 90° rotation), the picking device can drive the chip to rotate in the anti-collision grooves 12, and because the anti-collision grooves 12 are recessed structures (such as circular or arc-shaped), the rotation can provide a space for the rotation of the chip, thereby avoiding rigid collision between the corners of the chip and the carrier tape unit 10 during rotation, causing the chip to be stuck, and making the picking, angle adjustment and placement process of the chip more smooth.
[0033] As an implementable manner, as shown in Figure 1 and Figure 2 The shape of the anti-collision groove 12 is circular, and the normal projection part of the anti-collision groove 12 and the containing groove 11 on the carrier tape unit 10 coincides.
[0034] It should be noted that, taking the shape of the anti-collision groove 12 as an example, the cross-sectional shape (or normal projection profile) of the anti-collision groove 12 is circular, the anti-collision groove 12 has a center and a radius, and the groove wall of the anti-collision groove 12 is in the form of a circular arc. Therefore, the straight corner edges of the traditional square groove are eliminated, and there is no risk of "corner interference" when the chip rotates, and the occurrence rate of jamming is significantly reduced. In the plan view (or normal projection) of the carrier tape unit 10, the circular area of the anti-collision groove 12 covers the corner area of the containing groove 11, that is, the anti-collision groove 12 is located at the corner of the containing groove 11 and shares part of the area with the containing groove 11, so as to ensure that the anti-collision groove 12 directly acts on the movement track of the chip corner, while not damaging the limiting function of the containing groove 11.
[0035] As an implementable manner, as shown in Figures 1 to 3 The first positioning hole 13 is provided on the carrier tape unit 10, and the first positioning hole 13 is used for positioning with the material gun or the gear of the machine table.
[0036] It should be noted that the first positioning hole 13 is provided on the carrier tape unit 10, and the first positioning hole 13 can be located in the edge area (or the area other than the containing groove 11) of the carrier tape unit 10 to avoid interference with the chip placement area (or the area of the containing groove 11). For example, the first positioning hole 13 can be provided on the transmission side (or the side in contact with the transmission mechanism of the automatic equipment) of the carrier tape unit 10, and the first positioning hole 13 can be a circular or elliptical through hole.
[0037] The first positioning hole 13 is used for positioning with the material gun, for example, the positioning hole is precisely matched with the tooth shape of the gear of the material gun (for example, the gear pitch is equal to the spacing of the positioning hole), so that when the material gun pulls the carrier tape unit 10 to move, the containing groove 11 can be accurately aligned with the pickup position (for example, directly below the suction nozzle) of the equipment; or the first positioning hole 13 is used for positioning with the gear of the machine table, for example, in a semiconductor packaging equipment, a driven gear for fixing the transmission path of the carrier tape is embedded in the first positioning hole 13 to limit the lateral deviation of the carrier tape unit 10 and provide a stable traction force, so as to ensure the straight line motion accuracy of the carrier tape unit 10 during transmission.
[0038] As an implementable manner, as shown in Figure 3 The second positioning hole 111 is provided on the side of the containing groove 11 away from the slot of the containing groove 11, and the second positioning hole 111 is used for positioning with the material gun or the positioning device of the machine table.
[0039] It should be noted that the carrier unit 10 is also provided with a second positioning hole 111, which is located on the side of the accommodating groove 11 away from the slot (i.e. the bottom or rear side of the accommodating groove 11), in a "back-to-back" relationship with the accommodating groove 11 in the thickness direction of the carrier unit 10. The second positioning hole 111 can be circular, oval or waist-shaped.
[0040] The second positioning hole 111 is used for positioning with the material gun. For example, the bottom of the material gun is provided with a protrusion, a pin or a jaw that fits the second positioning hole 111. By inserting the second positioning hole 111, the carrier unit 10 is tightly pushed up from the bottom surface, ensuring that the accommodating groove 11 is fixed in the vertical direction (or Z-axis), preventing the carrier unit 10 from shaking up and down. Alternatively, the second positioning hole 111 is used for positioning with the machine positioning device. For example, the machine table is provided with a fixed positioning pin. When the carrier unit 10 is installed, the second positioning hole 111 is fitted outside the positioning pin, thereby limiting the rotation and deviation of the carrier unit 10 in the horizontal plane (i.e. translation in the X-axis and Y-axis and rotation in the Z-axis), forming a "pin-hole" positioning structure. Alternatively, the second positioning hole 111 is used in cooperation with the camera on the machine to identify the second positioning hole 111 through the camera, thereby realizing the positioning and identification function.
[0041] As an implementable manner, as shown in Figure 1 and Figure 2 , the carrier unit 10 is rectangular in shape, and the accommodating groove 11 is located in the central region of the carrier unit 10.
[0042] It should be noted that the carrier unit 10 is rectangular in shape, and the rectangular structure facilitates roll packaging (e.g. winding on a reel). The geometric center of the accommodating groove 11 is absolutely or approximately coincident with the center of the carrier unit 10 (i.e. the intersection of the diagonal lines of the rectangle), so as to ensure that the accommodating groove 11 is centrally distributed in the horizontal direction of the carrier unit 10, thereby avoiding uneven stress on the carrier unit 10 caused by offset, and further avoiding the chip from being offset due to unilateral stress.
[0043] As an implementable manner, as shown in Figure 2 and Figure 3 , the number of carrier units 10 is multiple, and the multiple carrier units 10 are sequentially detachably connected to form the carrier body 20.
[0044] It should be noted that the carrier tape body 20 is composed of two or more independent carrier tape units 10, each of which contains a chip carrying structure such as the accommodating groove 11 and the anti-collision groove 12, and can independently complete the carrying of a single batch of chips. The plurality of carrier tape units 10 are sequentially detachably connected to form the carrier tape body 20. According to production needs, the plurality of carrier tape units 10 can be connected end to end along the length direction to form a carrier tape body 20 of a desired length. After connection, the accommodating grooves 11 of the carrier tape units 10 form a continuous chip carrying channel, and the positioning holes (such as the first positioning hole 13) thereon can be aligned to ensure that the gear of the feeder can be continuously driven.
[0045] In this way, when the number of chips is small, a small number of carrier tape units 10 can be used to carry a small number of chips, thereby avoiding waste of the entire roll of carrier tape. When a carrier tape unit 10 is damaged (such as deformation of the accommodating groove 11), the damaged carrier tape unit 10 can be directly disassembled and replaced with a new carrier tape unit 10, without scrapping the entire roll of carrier tape, thereby saving costs. In addition, different types of carrier tape units 10 (such as A units for carrying rectangular chips and B units for carrying circular chips) can be connected in series in the same carrier tape body 20, thereby meeting the needs of multi-variety inline production.
[0046] As an implementable manner, as shown in Figure 2 and Figure 3 , the side of the accommodating groove 11 away from the groove opening is provided with a first clamping portion 112 and a second clamping portion 113. The first clamping portion 112 of the previous carrier tape unit 10 is clamped with the second clamping portion 113 of the subsequent carrier tape unit 10 along the connecting direction of the first clamping portion 112 and the second clamping portion 113, so that the two adjacent carrier tape units 10 can be detachably connected. As an implementable manner, the first clamping portion 112 is a protrusion, and the second clamping portion 113 is a groove corresponding to the protrusion; or, the first clamping portion 112 is a groove, and the second clamping portion 113 is a protrusion corresponding to the groove.
[0047] It should be noted that the plurality of carrier tape units 10 are sequentially detachably connected to form the carrier tape body 20. For example, in some embodiments, the carrier tape units 10 are provided with bosses and grooves (such as male and female buckles) at the ends, and the connection and separation are achieved by plugging and pulling. Alternatively, in some other embodiments, magnets or iron sheets are embedded at the ends of the carrier tape units 10, and the magnets or iron sheets are used to fix by magnetic force. Alternatively, in some other embodiments, a positioning pin is arranged on the carrier tape unit 10 in front, and a pin hole is arranged on the carrier tape unit 10 behind, and the positioning pin and the pin hole are matched to fix and transmit traction force.
[0048] Please also refer to Figure 4 As an implementable manner, the chip carrying tape further includes a cover tape 30, and the cover tape 30 is arranged on the carrier tape unit 10. The carrier tape unit 10 and the cover tape 30 jointly form a closed cavity.
[0049] It should be noted that the chip carrier tape also comprises a cover tape 30, which is arranged on the carrier tape unit 10. The cover tape 30 can be made of transparent polyester (PET), polypropylene (PP) or plastic with adhesive coating, for example. The cover tape 30 covers the back of the carrier tape unit 10, and cooperates with the groove walls and groove bottom of the accommodating grooves 11 to form an enclosed space. The chips are sealed in the accommodating grooves 11, avoiding contact with the outside world, so that the chips can be kept clean during transportation and storage, and the chips can also be prevented from being ejected from the accommodating grooves 11 or displaced due to vibration or impact.
[0050] The above only describes optional embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art based on the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
[0051] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present application.
Claims
1. A chip on film tape, characterized by, The device includes a carrier tape unit, which has a receiving groove for accommodating a chip. The shape of the receiving groove is adapted to the shape of the chip. Anti-collision grooves are provided at the corners of the receiving groove, and the corners of the chip can be accommodated in the anti-collision grooves.
2. The tape-out according to claim 1, wherein Both the receiving slot and the chip are rectangular in shape. Each of the four corners of the receiving slot is provided with an anti-collision groove, and the four corners of the chip are respectively housed in the anti-collision grooves at the four corners of the receiving slot.
3. The tape-out according to claim 1, wherein The anti-collision groove is circular in shape, and the anti-collision groove and the receiving groove overlap on the orthographic projection portion of the carrier tape unit.
4. The tape-out according to claim 1, wherein The carrier unit is provided with a first positioning hole, which is used to cooperate with the material gun or machine gear for positioning.
5. The tape-out according to claim 1, wherein A second positioning hole is provided on the side of the receiving groove away from the opening of the receiving groove. The second positioning hole is used to cooperate with the material gun or the machine positioning device for positioning.
6. The tape-out according to claim 1, wherein, The carrier tape unit is rectangular in shape, and the receiving slot is located in the central region of the carrier tape unit.
7. The tape according to any one of claims 1 to 6, wherein The number of carrier tape units is multiple, and the multiple carrier tape units are detachably connected in sequence to form a carrier tape body.
8. The tape-out according to claim 7, wherein The receiving groove is provided with a first locking part and a second locking part on the side opposite to the groove opening. Along the line connecting the first locking part and the second locking part, the first locking part of the preceding carrier tape unit is locked with the second locking part of the following carrier tape unit, so that the two adjacent carrier tape units can be detachably connected.
9. The tape-out according to claim 8, wherein, The first latching part is a protrusion, and the second latching part is a groove corresponding to the protrusion; or, the first latching part is a groove, and the second latching part is a protrusion corresponding to the groove.
10. The tape-out according to claim 1, wherein, It also includes a cover strip, which covers the carrier tape unit, and the carrier tape unit and the cover strip together form a closed cavity.