Anti-corrosion bonding alloy wire and preparation method thereof
An alloy wire and corrosion-resistant technology, which is applied in the field of high-performance bonding alloy wire and its preparation, can solve the problems of reducing the welding strength of the first solder joint, increasing the cost, and increasing the cost of LED devices, so as to eliminate adverse effects and corrosion Effect of slow reaction, good anti-tarnish properties
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Embodiment 1
[0021] A method for preparing a corrosion-resistant bonding alloy wire, wherein the raw material of the bonding alloy wire is composed of pure Ag with a purity not lower than 99.995%, pure Pd with a purity not lower than 99.99%, pure Pd with a purity not lower than 99.995%. Cu, pure In with a purity of not less than 99.99%, and pure Y with a purity of not less than 99.9%.
[0022] The preparation method of the bonding alloy wire is as follows:
[0023] (1) Preparation of silver-yttrium master alloy. A high-vacuum medium-frequency induction melting furnace is used for the preparation of silver-yttrium master alloy. The upper and lower double crucibles are used for preparation. The material of the crucible is a high-purity graphite crucible, and the two crucibles are placed one above the other. Small holes, and fixed with the lower crucible through surface fit. The preparation process of the silver-yttrium master alloy is as follows: Weigh the yttrium with a mass fraction of 3%...
Embodiment 2
[0028] A method for preparing a corrosion-resistant bonding alloy wire, wherein the raw material of the bonding alloy wire is composed of pure Ag with a purity not lower than 99.995%, pure Pd with a purity not lower than 99.99%, pure Pd with a purity not lower than 99.995%. Cu, pure In with a purity of not less than 99.99%, and pure Y with a purity of not less than 99.9%.
[0029] The preparation method of the bonding alloy wire is as follows:
[0030] (1) Preparation of silver-yttrium master alloy. The preparation of silver-yttrium master alloy adopts a high-vacuum intermediate-frequency induction melting furnace and is prepared by the method of upper and lower double crucibles. The material of the crucible is a high-purity graphite crucible. Small holes, and fixed with the lower crucible through surface fit. The preparation process of the silver-yttrium master alloy is as follows: Weigh the yttrium with a mass fraction of 4% and the silver with a mass fraction of 96%, and p...
Embodiment 3
[0035] A method for preparing a corrosion-resistant bonding alloy wire, wherein the raw material of the bonding alloy wire is composed of pure Ag with a purity not lower than 99.995%, pure Pd with a purity not lower than 99.99%, pure Pd with a purity not lower than 99.995%. Cu, pure In with a purity of not less than 99.99%, and pure Y with a purity of not less than 99.9%.
[0036] The preparation method of the bonding alloy wire is as follows:
[0037] (1) Preparation of silver-yttrium master alloy. A high-vacuum medium-frequency induction melting furnace is used for the preparation of silver-yttrium master alloy. The upper and lower double crucibles are used for preparation. The material of the crucible is a high-purity graphite crucible, and the two crucibles are placed one above the other. Small holes, and fixed with the lower crucible through surface fit. The preparation process of the silver-yttrium master alloy is as follows: Weigh the yttrium with a mass fraction of 5%...
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Abstract
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