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Anti-vulcanization bonding silver wire

A technology of anti-vulcanization and vulcanization bond, which is applied in the direction of coating, wax coating, circuit, etc., can solve the problems of lack of luster, increase of cost, and influence on the popularization and application of bonding silver wire, so as to improve reliability, good heat insulation, Good anti-vulcanization effect

Pending Publication Date: 2022-04-22
深圳金斯达半导体材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silver is easily sulfided in an environment containing sulfur, which seriously affects the popularization and application of bonded silver wires.
Some companies plate a layer of gold on the surface of silver to prevent vulcanization, which will increase the cost invisibly, and will not have the effect of adding luster

Method used

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  • Anti-vulcanization bonding silver wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An anti-sulfur bonding silver wire, the surface of the bonding silver wire is coated with an anti-sulfur coating.

[0022] The bonding silver wire of the present invention realizes anti-corrosion and anti-sulfurization effects through the anti-sulfurization coating, and improves the reliability of the bonding silver wire.

Embodiment 2

[0024] Compared with Example 1, the anti-sulfur coating includes the following components in weight percentage: rosin 1%, epoxy resin 24%, ozokerite 25%, polystyrene 50%.

Embodiment 3

[0026] Compared with Example 1, the anti-sulfur coating includes the following components in weight percentage: rosin 25%, epoxy resin 25%, ozokerite 20%, polystyrene 30%.

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Abstract

The invention discloses an anti-vulcanization bonding silver wire. The surface of the bonding silver wire is coated with an anti-vulcanization coating. The anti-vulcanization coating comprises the following components in percentage by weight: 1-35% of rosin, 1-35% of epoxy resin, 1-25% of ozokerite and 1-50% of polystyrene. According to the preparation method of the anti-vulcanization bonding silver wire, the bonding silver wire of a wire drawing finished product is coated with the coating liquid before being transferred to an annealing procedure, then annealing and drying are conducted, and the bonding silver wire with the anti-vulcanization coating is obtained. The bonding silver wire has the characteristics of resisting vulcanization, improving the quality of the bonding silver wire and the like.

Description

technical field [0001] The invention relates to an anti-sulfur bonding silver wire. Background technique [0002] Bonding wires made of two materials, gold bonding wires and silver bonding wires, have been widely used as LED lead wires. However, with the soaring price of gold, the cost of production and use of enterprises remains high. Bonding silver wire is the most ideal material for the inner lead of LEDs. The price is far lower than gold, which can greatly reduce the product cost; the reflective silver has the crown of various metals, which can increase the brightness by about 5%. However, silver is easily sulfided in an environment containing sulfur, which seriously affects the popularization and application of bonded silver wires. Some companies plate a layer of gold on the surface of silver to prevent vulcanization. This invisibly increases the cost and does not have the effect of adding luster. Contents of the invention [0003] The object of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/62H01L23/49H01L21/48C09D125/06C09D163/00C09D193/04C09D191/06
CPCH01L33/62H01L24/45H01L24/43H01L21/4885C09D125/06C09D163/00C09D193/04H01L2224/45139H01L2224/4549H01L2224/43C08L63/00C08L93/04C08L91/06C08L25/06H01L2924/00011H01L2924/01049
Inventor 李天祥张贺源
Owner 深圳金斯达半导体材料有限公司
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