CN219591390U - Tool for preventing TOLL frame from deforming - Google Patents
Tool for preventing TOLL frame from deforming Download PDFInfo
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- CN219591390U CN219591390U CN202320746442.5U CN202320746442U CN219591390U CN 219591390 U CN219591390 U CN 219591390U CN 202320746442 U CN202320746442 U CN 202320746442U CN 219591390 U CN219591390 U CN 219591390U
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- toll
- pins
- jig
- bottom plate
- frame
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Abstract
The utility model discloses a tool for preventing TOLL frame from deforming, comprising: the jig comprises a jig bottom plate, wherein a lead frame of TOLL products is placed on the jig bottom plate, a plurality of TOLL products are arranged on the lead frame, each TOLL product is provided with a plurality of pins, and bosses are arranged on the outer sides of the outer pins of the jig bottom plate corresponding to each TOLL product and in gaps among the pins. According to the utility model, the bosses are arranged on the bottom plate of the jig, so that the bosses are positioned on the outer sides of the pins on the left side and the right side of the TOLL product, and therefore, in the welding process, the bosses provide limit for the pins, so that the pins are prevented from being deformed due to transverse force in the welding process, and the problem of pin crush injury caused by poor matching with a die in the subsequent plastic packaging process is avoided.
Description
Technical Field
The present utility model relates to the field of integrated circuit packaging technology, and in particular, to a tool for preventing a TOLL frame from deforming.
Background
When the existing TOLL product is used for welding aluminum wires with large wire diameters, particularly 500 mu m aluminum wires with angles, as the frame is arranged between the pressing plate and the bottom cushion block, the frame is in plane contact with the pressing plate and the bottom cushion block, and only the pressing force in the vertical direction is applied to the frame, so that pins are easily subjected to transverse tension in the process of oblique welding wires, the frames are stressed and deformed, and transverse offset is generated, and the finished product is not well matched with a die in plastic packaging, so that the problem of pin crush injury is caused.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a jig for preventing TOLL frames from deforming.
The technical scheme of the utility model is as follows: there is provided a jig for preventing deformation of a TOLL frame, comprising: the jig comprises a jig bottom plate, wherein a lead frame of TOLL products is placed on the jig bottom plate, a plurality of TOLL products are arranged on the lead frame, each TOLL product is provided with a plurality of pins, and bosses are arranged on the outer sides of the outer pins of the jig bottom plate corresponding to each TOLL product and in gaps among the pins.
Further, the distance between the pin and the edge of the boss is 0.01-0.1mm.
Further, the boss is correspondingly arranged on the outer side of the inner pin of the pins.
Further, the upper surface of the boss is higher than the lower surface of the lead frame and lower than the upper surface of the lead frame by 0-0.1mm.
By adopting the scheme, the lug bosses are arranged on the bottom plate of the jig, so that the lug bosses are positioned at the outer sides of the pins at the left side and the right side of the TOLL product, and limit is provided for the pins in the welding process, so that the situation that the pins are deformed due to transverse force in the welding process is avoided, and the problem of pin crush injury caused by poor matching with a die in the subsequent plastic packaging process is avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model.
Fig. 2 is a schematic structural diagram of the present utility model.
Fig. 3 is a schematic structural diagram of the second embodiment of the present utility model.
Fig. 4 is a schematic cross-sectional view of B-B of fig. 3.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the specific embodiments.
Referring to fig. 1 and 2, the present utility model provides a tool for preventing a TOLL frame from deforming, comprising: the jig comprises a jig bottom plate 1, wherein a lead frame 2 of TOLL products 21 is placed on the jig bottom plate 1, a plurality of TOLL products 21 are arranged on the lead frame 2, each TOLL product 21 is provided with a plurality of pins 22, and bosses 11 are arranged in gaps between the outer sides of outer pins in the pins 22 of the jig bottom plate 1 corresponding to each TOLL product 21 and the pins 22. When the lead frame 2 is mounted on the jig base plate 1, the bosses 11 are located outside the pins 22 on the left and right sides of the TOLL product 21. In the welding process, the boss 11 provides limit for the pin 22, so that the pin 22 is prevented from being deformed due to transverse force in the welding process, and the problem of pin 22 crush caused by poor matching with a die in the subsequent plastic packaging process is avoided.
The distance between the pins 22 and the edge of the boss 11 is 0.01-0.1mm, in some embodiments, the distance between the pins 22 and the edge of the boss 11 is 0.05mm, so that the deformation of the pins 22 is effectively limited, and the problem that the pins 22 are crushed due to mismatching between the pins 22 and the plastic package mold caused by deformation of the pins 22 is avoided.
Referring to fig. 3 and 4, in some embodiments, the boss 11 is further disposed on the outer side of the inner pin 22. The boss 11 is arranged on the outer side of the inner pin, so that support protection is provided for the outer pin and the inner pin in the process of welding wires, and the overall product quality of the pin 22 is not affected.
The upper surface of the boss 11 is higher than the lower surface of the lead frame 2 and lower than the upper surface of the lead frame 2 by 0-0.1mm. In some embodiments, the upper surface of the boss 11 is flush with the pins 22 of each TOLL product 21 of the leadframe 2, thereby effectively avoiding affecting the hold down effect on the leadframe 2 during soldering.
In summary, the bosses are arranged on the bottom plate of the jig, so that the bosses are positioned on the outer sides of the pins on the left side and the right side of the TOLL product, and therefore, in the welding process, the bosses provide limit for the pins, so that the situation that the pins are deformed due to transverse force in the welding process is avoided, and the problem of pin crush injury caused by poor matching with a die in the subsequent plastic packaging process is avoided.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (4)
1. A jig for preventing deformation of a TOLL frame, comprising: the jig comprises a jig bottom plate, wherein a lead frame of TOLL products is placed on the jig bottom plate, a plurality of TOLL products are arranged on the lead frame, each TOLL product is provided with a plurality of pins, and bosses are arranged on the outer sides of the outer pins of the jig bottom plate corresponding to each TOLL product and in gaps among the pins.
2. The jig for preventing deformation of a TOLL frame according to claim 1, wherein the pins are spaced from the boss edge by a distance of 0.01-0.1mm.
3. The jig for preventing deformation of a TOLL frame according to claim 1, wherein the boss is further disposed on an outer side of an inner one of the pins.
4. The jig for preventing deformation of a TOLL frame according to claim 1, wherein the upper surface of the boss is 0-0.1mm above the lower surface of the lead frame and below the upper surface of the lead frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320746442.5U CN219591390U (en) | 2023-03-31 | 2023-03-31 | Tool for preventing TOLL frame from deforming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320746442.5U CN219591390U (en) | 2023-03-31 | 2023-03-31 | Tool for preventing TOLL frame from deforming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219591390U true CN219591390U (en) | 2023-08-25 |
Family
ID=87694062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320746442.5U Active CN219591390U (en) | 2023-03-31 | 2023-03-31 | Tool for preventing TOLL frame from deforming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219591390U (en) |
-
2023
- 2023-03-31 CN CN202320746442.5U patent/CN219591390U/en active Active
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