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Wedge-shaped chopper suitable for full-automatic bonding and processing method thereof

A fully automatic, wedge-shaped technology, applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems of pendulum wire, unqualified bonding solder joints, etc., to achieve the effect of large constraints and avoidance of pendulum wire

Pending Publication Date: 2022-07-29
GRIMAT ENG INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the second lead hole of the wedge-shaped rivet used in the market has less constraints on the wire outlet angle of the welding wire, and there will

Method used

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  • Wedge-shaped chopper suitable for full-automatic bonding and processing method thereof
  • Wedge-shaped chopper suitable for full-automatic bonding and processing method thereof
  • Wedge-shaped chopper suitable for full-automatic bonding and processing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] exist Figure 1-5 In the shown wedge-shaped capillary structure suitable for automatic bonding, the first chamfered surface 22 is provided with a second lead hole 26 extending to the groove 214, the second lead hole 26 is tapered, and the taper is 1°, The diameter of the small circle is 0.02mm, the cross section of the groove 2121 is an arc, the radius of the arc is 0.01mm, and the width is 0.01mm.

Embodiment 2

[0033] like Figure 1-5 In the shown wedge-shaped capillary structure suitable for automatic bonding, the first chamfered surface 22 is provided with a second lead hole 26 extending to the groove 214, and the second lead hole 26 is tapered with a taper of 10°, The diameter of the small circle is 0.05mm, the cross section of the groove 2121 is a trapezoid, the angle between the two waists of the trapezoid groove is 1°, and the length of the lower bottom is 0.01mm.

Embodiment 3

[0035] like Figure 1-5 In the wedge-shaped capillary structure shown for fully automatic bonding, the first chamfered surface 22 is provided with a second lead hole 26 extending to the groove 214, and the second lead hole 26 is tapered with a taper of 20°, The diameter of the small circle is 0.09mm, the cross-section of the groove 2121 is trapezoid, the angle between the two waists of the trapezoid groove is 120°, and the length of the lower bottom is 0.08mm.

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Abstract

The invention discloses a wedge-shaped chopper suitable for full-automatic bonding and a processing method of the wedge-shaped chopper, and belongs to the field of microelectronic devices. The wedge-shaped chopper is of an integral structure and is composed of a cutter handle and a cutter head, the cutter handle is cylindrical, and a through first lead hole is formed in the center of the cutter handle. The tool bit is of a wedge-shaped structure, the tool nose part of the tool bit is of a high-low step structure, the end face of a high step is a welding end face, and the periphery of the tool bit is connected with one end of each of four diagonal planes. The welding end face is composed of a front edge angle, a bonding face, a rear edge angle, a groove and an inclined face, the first diagonal plane is provided with a second lead hole extending to the groove, and the second lead hole is conical. The second lead hole is designed to be of a conical structure, the inlet is a face with the large diameter, wire penetrating is facilitated, the outlet is a face with the small diameter, the constraint on the welding wire is large, the problem of wire swinging of the welding wire in the wire feeding process is avoided, and therefore the wire feeding device is suitable for full-automatic bonding welding operation.

Description

technical field [0001] The invention belongs to the field of microelectronic devices, in particular to a wedge-shaped rivet suitable for automatic bonding and a processing method thereof. Background technique [0002] The wedge-shaped capillary is an important tool for wire bonding, and the welding wire is drawn out through the second lead hole and enters the bonding surface for bonding. The second lead hole of the wedge-shaped capillary currently used in the market has little constraint on the wire outlet angle of the welding wire, and the problem of the wobbly wire will occur during the wire feeding process. Bond solder joints are not acceptable. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a wedge-shaped rivet suitable for automatic bonding and a processing method thereof. It includes two parts, a handle 1 and a cutter head 2, and is characterized in that, the wedge-shaped ribbing cutter suitable for automatic bonding is an inte...

Claims

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Application Information

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IPC IPC(8): B23P15/00H01L21/60
CPCB23P15/00H01L24/78H01L2224/78
Inventor 史植广谢兴铖杨剑林中坤刘皓杨志民曹瑞军梁秋实
Owner GRIMAT ENG INST CO LTD
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