CN218135868U - Pressing plate of wire bonding machine - Google Patents
Pressing plate of wire bonding machine Download PDFInfo
- Publication number
- CN218135868U CN218135868U CN202222153534.0U CN202222153534U CN218135868U CN 218135868 U CN218135868 U CN 218135868U CN 202222153534 U CN202222153534 U CN 202222153534U CN 218135868 U CN218135868 U CN 218135868U
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- CN
- China
- Prior art keywords
- window
- pressing plate
- cover plate
- platen
- wire
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003825 pressing Methods 0.000 title claims abstract description 78
- 238000003466 welding Methods 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
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- Wire Bonding (AREA)
Abstract
Wire bonding machine clamp plate relates to semiconductor package equipment technical field, specifically belongs to a wire bonding machine clamp plate. The pressing plate fixing seat is provided with a step window, an intermediate pressing plate is inserted into the step window, and the size and shape of the intermediate pressing plate are matched with those of the step window; the middle part of the middle pressing plate is provided with a welding wire window, two sides of the welding wire window are provided with grooves, and elastic pieces are arranged in the grooves; a cover plate is arranged above the elastic piece, a window is formed in the middle of the cover plate, and the size of the window corresponds to that of the welding wire window; the cover plate is fixed on the pressure plate fixing seat, the elastic piece and the middle pressure plate are fixed in the step window by the cover plate, and the middle pressure plate is abutted between the cover plate and the step window through the elastic piece and is exposed outwards in a telescopic manner through the step window. The utility model discloses have the elasticity pressfitting, the pressfitting is more inseparable, the reliability is stronger, simple structure, beneficial effect that the suitability is strong.
Description
Technical Field
The utility model relates to a semiconductor package equipment technical field specifically belongs to a bonding wire machine clamp plate.
Background
The wire bonding machine is mainly applied to inner lead welding in the packaging process of semiconductor devices. During wire bonding, crystal grains to be bonded are placed on the lead frame and are conveyed to a heating block of a wire bonding machine through a conveying belt, and the lead frame and the heating block are pressed by the pressing plate, so that the lead frame is in a stable state in the wire bonding process, and uniform and stable stress of a welding point is ensured. Most of pressing plates in the prior art can be influenced by a certain deformation quantity of materials, carriers and the pressing plates after being used for a long time, so that the tightness of the pressing plates and the heating blocks is not enough, and the packaging is unqualified.
Disclosure of Invention
An object of the utility model is to provide a bonding wire machine clamp plate to reach elasticity pressfitting, pressfitting more inseparable, the reliability is stronger, simple structure, the strong purpose of suitability.
The utility model provides a wire bonding machine pressing plate, which comprises a pressing plate fixing seat, wherein a step window is arranged on the pressing plate fixing seat, a middle pressing plate is inserted and combined in the step window, and the size and the shape of the middle pressing plate are matched with those of the step window; the middle part of the middle pressing plate is provided with a welding wire window, two sides of the welding wire window are provided with grooves, and elastic pieces are arranged in the grooves; a cover plate is arranged above the elastic piece, a window is formed in the middle of the cover plate, and the size of the window corresponds to that of the welding wire window; the cover plate is fixed on the pressing plate fixing seat, the elastic piece and the middle pressing plate are fixed in the step window by the cover plate, and the middle pressing plate is abutted between the cover plate and the step window through the elastic piece and is exposed out in a telescopic mode through the step window.
Furthermore, mounting holes are formed in two ends of the pressing plate fixing seat, and avoidance grooves are formed in two sides of the stepped window.
Furthermore, the groove penetrates through the middle pressing plate in the width direction.
Furthermore, the elastic piece is a metal strip, and a wavy elastic structure is formed on the metal strip.
Furthermore, the groove is a cylindrical groove, and a plurality of grooves are arranged on each side of the groove.
Further, the elastic member is a cylindrical spring.
Furthermore, the cover plate is fixed on the pressing plate fixing seat through screws.
Furthermore, the cover plate is fixed on the pressing plate fixing seat in a spot check mode.
Furthermore, the bottom of the welding wire window is provided with a pressing claw which is integrally formed with the middle pressing plate.
The utility model provides a pair of wire bonding machine clamp plate, through the elastic component that sets up support the intermediate pressure board between apron and ladder window, and expose through the outside telescopic of ladder window, when using the bonding wire clamp plate, the partly elastic pressfitting that is telescopically exposed is on the lead frame, makes the pressfitting more inseparabler, even material, carrier, clamp plate itself take place the definite deformation volume after long-time use, because of the reason of elasticity pressfitting, also can automatic adjustment, avoid appearing pressing the phenomenon of not living the work piece; the bottom of the welding wire window arranged on the middle pressing plate is provided with the pressing claw which is integrally formed with the middle pressing plate, so that the bonding pad can be pressed more stably, the phenomena of product bonding pad displacement and the like are avoided, and the reliability of pressing is improved; the welding wire windows required to be opened are different when the models of the chips are different, and only the middle pressing plate can be replaced when the welding wire pressing plate is used, so that the adaptability of the welding wire pressing plate is improved, and the production cost is saved; the middle pressing plate is inserted into the step window, the cover plate can be fixed through screws or inserted into and fixed with the middle pressing plate, and the structure is simple, so that the production and installation are facilitated.
To sum up, the utility model discloses have the elasticity pressfitting, the pressfitting is more inseparable, the reliability is stronger, simple structure, beneficial effect that the suitability is strong.
Drawings
Fig. 1 is a schematic diagram of the structure of the pressing plate of the wire bonding machine of the present invention.
Fig. 2 is an exploded view of the press plate of the wire bonding machine of the present invention.
Fig. 3 is a schematic view of the structure of the intermediate pressing plate of the present invention.
Fig. 4 is an exploded schematic view of a second embodiment of the present invention.
Fig. 5 is a schematic view of a second embodiment of the present invention showing a partially enlarged structure of a pressing plate fixing frame.
Detailed Description
As shown in fig. 1-3, the utility model provides a wire bonding machine pressing plate, which comprises a pressing plate fixing seat 1, wherein waist-shaped mounting holes 4 are arranged at two ends of the pressing plate fixing seat, a step window 6 is arranged at the middle part of the pressing plate fixing seat, avoidance grooves 5 are arranged at two sides of the step window, and the depth of the avoidance grooves ensures that the pressing plate fixing seat does not touch crystal grains of a to-be-processed row and a processed row after pressing; the middle pressing plate 2 is inserted into the step window, the middle pressing plate is in a step boss shape and is matched with the step window, the upper surface 23 of the middle pressing plate is lower than the upper surface 11 of the pressing plate fixing seat after the middle pressing plate is inserted, and the laminating surface 25 of the middle pressing plate extends out of the step window; the middle part of the middle pressing plate is provided with welding wire windows 21, the number of the welding wire windows corresponds to the number of crystal grains in each row of the lead frame, 4 welding wire windows are arranged in the embodiment, each welding wire window is a through hole which is gradually reduced from the upper surface of the middle pressing plate to the laminating surface, the bottom of each welding wire window is provided with a pressing claw 24 which is integrally formed with the middle pressing plate, each pressing claw extends outwards to the welding window, the bottom of each pressing claw is flush with the bottom of the middle pressing plate to form the laminating surface 25, the shape and the size of each welding window, the number and the positions of the pressing claws can be arranged according to the model of a welding chip, the cross section of each welding window is circular in the embodiment, and the number of the pressing claws is 3; grooves 22 are formed in the two sides of the welding wire window on the upper surface of the middle pressing plate and penetrate along the width direction of the middle pressing plate, an elastic piece 7 is arranged in each groove, each elastic piece is a metal strip, and a wavy elastic structure is formed on each metal strip; a cover plate 3 is arranged above the elastic piece, a rectangular window 31 corresponding to the welding wire window is formed in the middle of the cover plate, and the cover plate is fixed on the pressing plate fixing seat through a screw 8; the cover plate fixes the elastic piece and the middle pressing plate in the step window, one side of the elastic piece is abutted against the bottom wall of the groove in a natural state, the other side of the elastic piece is abutted against the cover plate, and the middle pressing plate is abutted between the cover plate and the step window through the elastic piece and is exposed out of the step window in an outward telescopic mode.
As shown in fig. 4-5, in another embodiment, the cover plate is inserted into the pressing plate fixing seat by means of insertion, the pressing plate fixing seat is provided with an insertion slot 10 adapted to the cover plate, one side of the insertion slot is provided with an insertion opening 9 for insertion of the cover plate, and one side of the insertion slot opposite to the insertion opening is closed and does not completely penetrate through the pressing plate fixing seat for positioning the cover plate.
In another embodiment, the grooves formed in the upper surface of the middle pressing plate and the two sides of the welding wire window are cylindrical grooves, 4 grooves are formed in each side of the middle pressing plate, and the elastic pieces placed in the grooves are cylindrical springs.
Claims (9)
1. A pressing plate of a wire welding machine is characterized by comprising a pressing plate fixing seat (1), wherein a step window (6) is formed in the pressing plate fixing seat, a middle pressing plate (2) is inserted and combined in the step window, and the size and the shape of the middle pressing plate are matched with those of the step window; the middle part of the middle pressing plate is provided with a welding wire window (21), two sides of the welding wire window are provided with grooves (22), and elastic parts (7) are arranged in the grooves; a cover plate (3) is arranged above the elastic piece, a window (31) is formed in the middle of the cover plate, and the size of the window corresponds to that of the welding wire window; the cover plate is fixed on the pressing plate fixing seat, the elastic piece and the middle pressing plate are fixed in the step window by the cover plate, and the middle pressing plate is abutted between the cover plate and the step window through the elastic piece and is exposed out in a telescopic mode through the step window.
2. The bonding machine platen according to claim 1, wherein the platen holder has mounting holes (4) formed at both ends thereof, and relief grooves (5) formed at both sides of the stepped window.
3. The wire bonding platen of claim 1 wherein the groove extends across the width of the intermediate platen.
4. The bonding wire platen of claim 3 wherein the spring is a metal strip formed with a wave-like spring structure.
5. The bonding wire platen of claim 1 wherein the grooves are cylindrical grooves with multiple grooves on each side.
6. The bonding machine platen of claim 5 wherein said resilient member is a cylindrical spring.
7. Wire bonding machine platen according to claim 1, characterized in that the cover plate is fixed to the platen holder by means of screws (8).
8. The wire bonding machine platen of claim 1 wherein the cover plate is secured to the platen mount by spot inspection.
9. The bonding machine platen of claim 1 wherein the wire window bottom is provided with a clamping jaw (24) integrally formed with the intermediate platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222153534.0U CN218135868U (en) | 2022-08-16 | 2022-08-16 | Pressing plate of wire bonding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222153534.0U CN218135868U (en) | 2022-08-16 | 2022-08-16 | Pressing plate of wire bonding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218135868U true CN218135868U (en) | 2022-12-27 |
Family
ID=84550945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222153534.0U Active CN218135868U (en) | 2022-08-16 | 2022-08-16 | Pressing plate of wire bonding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218135868U (en) |
-
2022
- 2022-08-16 CN CN202222153534.0U patent/CN218135868U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Welding machine pressure plate Effective date of registration: 20231102 Granted publication date: 20221227 Pledgee: Qilu Bank Co.,Ltd. Rizhao Branch Pledgor: Rizhao dongxun Electronic Technology Co.,Ltd. Registration number: Y2023980063835 |