Welding chopper for bonding

Abstract

The utility model relates to a welding chopper for bonding, which aims to solve the technical problems that a chopper head of a current welding chopper is easy to damage due to welding and the cost of directly replacing the whole welding chopper is too high, and comprises a chopper handle and the chopper head, the cutter handle and the cutter head are connected through a connecting structure. The connecting structure comprises a lantern ring A and a lantern ring B; the lantern ring A is connected to the knife handle connecting end in a sleeving mode. The sleeve ring B is connected to the tool bit connecting end in a sleeving mode. Wherein the upper end and the lower end of the lantern ring A are fixedly connected with the upper end and the lower end of the lantern ring B through a bolt and a nut respectively. The tool has the advantages that the damaged tool bit can be detached independently, and the tool bit can be directly replaced without moving the tool handle.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor packaging, in particular to a welding chopper for bonding. Background Art

[0002] Semiconductor packaging refers to the process of processing tested wafers into independent chips according to product models and functional requirements. This includes using ultra-fine metal wires or conductive resins to connect the bonding pads of the chip to the corresponding pins of the substrate to form the required circuit.

[0003] Semiconductor chip bonding requires the use of a welding chopper to hold the copper wire passing through for welding. The existing welding chopper has a groove at the head to hold the copper wire, but the head of the welding chopper is easily damaged due to welding, and it is too costly to directly replace the entire welding chopper.

[0004] In view of this, we propose a welding wedge for bonding. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a welding splitter for bonding to solve the technical problem that the blade of the current welding splitter is easily damaged due to welding and the cost of directly replacing the entire welding splitter is too high.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a welding wedge for bonding, including a handle and a head;

[0007] The knife handle and the knife head are connected by a connecting structure;

[0008] The connection structure includes a collar A and a collar B;

[0009] The collar A is sleeved on the connecting end of the handle;

[0010] The collar B is sleeved on the connecting end of the cutter head;

[0011] The upper and lower ends of the collar A and the collar B are fixedly connected by bolts and nuts respectively.

[0012] Preferably, a positioning block is fixedly provided at the connection end of the handle, a positioning groove is provided at the connection end of the cutter head, and the positioning block is inserted and matched with the positioning groove.

[0013] Preferably, rubber pads are respectively embedded on both sides of the positioning block, and the rubber pads are squeezed and matched with the inner side walls of the positioning groove.

[0014] Preferably, guide blocks are fixedly provided on both sides of the collar A, and guide strips are fixedly provided on both sides of the collar B, and the guide blocks are inserted and matched with guide grooves provided on the inner sides of the guide strips.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model has the advantages of being able to remove the damaged cutter head separately and directly replace the cutter head without moving the cutter handle by arranging the collar A, collar B, bolts and nuts, thereby solving the problem that the cutter head of the welding chopper is easily damaged due to welding and the cost of directly replacing the entire welding chopper is too high.

[0017] 2. The utility model has the advantage of providing a positioning block and a positioning groove, so that the holes on the collar A and the collar B can be accurately aligned through the insertion of the positioning block and the positioning groove, thereby facilitating the installation of bolts and nuts.

[0018] 3. The utility model has the advantage of accurately docking the positioning block and the positioning groove by arranging the guide block, the guide strip and the guide groove, and positioning by sliding the guide block in the guide groove during docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the plug-in structure of the positioning block of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure of the collar A and the collar B of the utility model;

[0023] In the figure: 1. handle; 2. blade head; 3. connection structure;

[0024] 201, positioning groove;

[0025] 301, collar A; 302, collar B; 303, bolt; 304, nut; 305, positioning block; 306, rubber pad; 307, guide block; 308, guide strip;

[0026] 3081. Guide groove. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] Example 1: A welding wedge for bonding, see Figures 1 to 4 , comprising a knife handle 1 and a knife head 2; the knife handle 1 and the knife head 2 are connected by a connecting structure 3;

[0029] The connecting structure 3 includes a collar A301 and a collar B302; the collar A301 is sleeved on the connecting end of the shank 1; the collar B302 is sleeved on the connecting end of the cutter head 2; wherein, the upper and lower ends of the collar A301 and the collar B302 are fixedly connected by bolts 303 and nuts 304 respectively, the bolts 303 pass through the holes on the collar A301 and the collar B302, and one end of the bolts 303 passing through the holes is threadedly connected with a nut 304.

[0030] The utility model has the advantage that the damaged cutter head 2 can be removed separately and the cutter head 2 can be directly replaced without moving the cutter handle 1 by arranging the collar A301, the collar B302, the bolt 303 and the nut 304, thereby solving the problem that the cutter head 2 of the welding splitter is easily damaged due to welding and the cost of directly replacing the entire welding splitter is too high.

[0031] Specifically, a positioning block 305 is fixedly disposed at the connection end of the handle 1 , a positioning groove 201 is formed at the connection end of the cutter head 2 , and the positioning block 305 is inserted and matched with the positioning groove 201 .

[0032] The utility model has the advantage that the holes on the collar A301 and the collar B302 are accurately aligned with each other by arranging the positioning block 305 and the positioning groove 201 , thereby facilitating the installation of the bolt 303 and the nut 304 .

[0033] Furthermore, rubber pads 306 are respectively embedded on both sides of the positioning block 305 , and the rubber pads 306 are squeezed and matched with the inner wall of the positioning groove 201 . The squeezing of the rubber pads 306 and the inner wall of the positioning groove 201 makes the insertion of the positioning block 305 and the positioning groove 201 more stable.

[0034] Furthermore, guide blocks 307 are fixed on both sides of the collar A301, and guide strips 308 are fixed on both sides of the collar B302. The guide blocks 307 are inserted and matched with guide grooves 3081 provided on the inner sides of the guide strips 308.

[0035] The utility model has the advantage of accurately docking the positioning block 305 and the positioning groove 201 by arranging the guide block 307 , the guide strip 308 and the guide groove 3081 , so that the positioning block 305 and the positioning groove 201 are positioned by sliding the guide block 307 in the guide groove 3081 during docking.

[0036] Working principle: Use the device of the utility model to install the cutter head 2, dock the connection ends of the handle 1 and the cutter head 2, insert the guide block 307 into the guide groove 3081 accordingly, and make the positioning block 305 and the positioning groove 201 accurately correspond by sliding the guide block 307 in the guide groove 3081. The positioning block 305 and the positioning groove 201 are plugged until the collar A301 and the collar B302 are in contact, and the bolt 303 passes through the holes on the collar A301 and the collar B302. One end of the bolt 303 passing through the hole is threadedly connected with a nut 304. The handle 1 is connected to the equipment installation mechanism, and the groove at the cutter head 2 of the welding splitter clamps the copper wire. The semiconductor chip bonding is welded by the welding splitter to hold the copper wire passing through. When the cutter head 2 is damaged, first remove the bolt 303 and the nut 304, remove the damaged cutter head 2, and then install a new cutter head 2 according to the above operation.

[0037] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A welding wedge for bonding, characterized in that: include: The knife handle (1) and the knife head (2) are connected via a connecting structure (3); The connection structure (3) comprises: A collar A (301) sleeved on the connecting end of the shank (1); A collar B (302) sleeved on the connecting end of the cutter head (2); The upper and lower ends of the collar A (301) and the collar B (302) are fixedly connected by bolts (303) and nuts (304) respectively.

2. A bonding welding knife as claimed in claim 1, characterized in that: A positioning block (305) is fixedly provided at the connection end of the knife handle (1), a positioning groove (201) is provided at the connection end of the knife head (2), and the positioning block (305) is inserted and matched with the positioning groove (201).

3. A bonding welding knife as claimed in claim 2, characterized in that: Rubber pads (306) are respectively embedded on both sides of the positioning block (305), and the rubber pads (306) are squeezed and matched with the inner side walls of the positioning groove (201).

4. A bonding welding knife as claimed in claim 1, characterized in that: Guide blocks (307) are fixedly provided on both sides of the collar A (301), and guide strips (308) are fixedly provided on both sides of the collar B (302). The guide blocks (307) are inserted and matched with guide grooves (3081) provided on the inner sides of the guide strips (308).

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