Corrosion-resistant high-damping silver alloy for electronic lead bonding and process for corrosion-resistant high-damping silver alloy

A wire bonding and corrosion-resistant technology, which is applied in the field of alloys, can solve the problems of non-ferrous metal processing technology and tediousness, and achieve the effects of slowing down electrochemical corrosion, reducing grain boundary potential, and excellent casting performance

Inactive Publication Date: 2019-05-21
杭州辰卓科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, manganese-based and copper-based damping alloys are widely used, but they are non-ferrous metals and the processing technology is cumbersome.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A corrosion-resistant high-damping silver alloy for electronic wire bonding and its technology. In terms of weight percentage, the composition of the alloy is Mn: 20.0wt.%, Pd: 1.0wt.%, Ni: 2.0wt.%, Fe: 1.0wt.%, Ru: 0.2wt.%, Ge: 1.2wt.% , Mo: 0.4wt.%, Se: 0.1wt.%, and the balance is silver.

[0019] The above-mentioned corrosion-resistant high-damping silver alloy for electronic wire bonding and its process includes the following smelting steps: melting the above-mentioned raw materials in an induction furnace, wherein active or volatile elements are added in the form of an intermediate alloy; Use graphite crucible and argon protection; heat the crucible to 1000-1100 degrees to form an alloy melt, and use the electromagnetic stirring effect to fully stir for about 15 minutes; keep the alloy melt at 1000 degrees for 15 minutes and then cast it into water glass or Casting into rods (diameter 50-60mm) in graphite molds.

[0020]The above-mentioned corrosion-resistant hig...

Embodiment 2

[0023] A corrosion-resistant high-damping silver alloy for electronic wire bonding and its technology. In terms of weight percentage, the composition of the alloy is Mn: 25.0wt.%, Pd: 1.5wt.%, Ni: 3.0wt.%, Fe: 2.0wt.%, Ru: 0.3wt.%, Ge: 1.5wt.%. , Mo: 0.6wt.%, Se: 0.2wt.%, and the balance is silver.

[0024] The above-mentioned corrosion-resistant high-damping silver alloy for electronic wire bonding and its process includes the following smelting steps: melting the above-mentioned raw materials in an induction furnace, wherein active or volatile elements are added in the form of an intermediate alloy; Use graphite crucible and argon protection; heat the crucible to 1000-1100 degrees to form an alloy melt, and use the electromagnetic stirring effect to fully stir for about 15 minutes; keep the alloy melt at 1000 degrees for 15 minutes and then cast it into water glass or Casting into rods (diameter 50-60mm) in graphite molds.

[0025] The above-mentioned corrosion-resistant h...

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PUM

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Abstract

The invention discloses a corrosion-resistant high-damping silver alloy for electronic lead bonding and a process for the corrosion-resistant high-damping silver alloy. The alloy is prepared from thefollowing components in percentage by weight: 20.0-25.0wt% of Mn, 1.0-1.5wt% of Pd, 2.0-3.0wt% of Ni, 1.0-2.0wt% of Fe, 0.2-0.3wt% of Ru, 1.2-1.5wt% of Ge, 0.4-0.6wt% of Mo, 0.1-0.2wt% of Se and the balance of silver. The material provides a silver bonding wire for packaging to an electronic device used in an environment with severe vibration, so that the situation that the existing silver bondingwire is not ideal in damping performance can be effectively overcome. With implementation and industrialization of the material, the fatigue damage of the silver bonding wire caused by vibration canbe effectively avoided, and great social benefit and economic benefit can be obtained at the same time.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a silver alloy. Background technique [0002] Noise pollution caused by industrial vibration has become a major hazard to human beings, and it is regarded as three major environmental problems worldwide together with water pollution and air pollution. There are many sources of vibration and noise, the main types are: (1) abnormal vibration and noise caused by the rotation of the machine itself or some parts due to assembly loss and bearing defects; (2) when the object is impacted in a short time A large amount of kinetic energy inside is converted into vibration and noise; (3) resonance due to the coincidence of the natural frequency of the object with the frequency of the external vibration; (4) turbulence generated by the high-speed moving fluid encountering obstacles will cause vibration and noise. [0003] Vibrations in mechanical structures can cause severe broadband random ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/06C22C1/03C22F1/14C22F1/02H01L21/60
Inventor 刘亚军
Owner 杭州辰卓科技有限公司
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