Gold-palladium-silver alloy composite bonding wire and manufacturing method thereof
A manufacturing method and silver alloy technology, applied in the field of bonding wire, can solve the problems that hinder the application and development of gold bonding wire, unfavorable enterprises to improve their competitiveness, low tensile strength of gold bonding wire, etc., and achieve excellent oxidation resistance and anti-sulfurization performance , Improve reliability, anti-oxidation and anti-vulcanization ability
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Embodiment 1
[0032] The gold-palladium-silver alloy composite bonding wire of the present embodiment comprises a core wire and a gold coating coated on the outside of the core wire; the core wire contains 60% gold, 35% silver, and 5% palladium by weight; the gold coating The thickness is 100nm.
[0033] In the present embodiment, the manufacturing method of gold-palladium-silver alloy composite bonding wire comprises the following steps:
[0034] (1) Melting and casting: Gold, silver and palladium are mixed in proportion, and after vacuum melting and directional continuous casting process, a core wire with a diameter of 8 mm is obtained;
[0035] (2) Wire drawing: draw the core wire obtained in step (1) to obtain a core wire with a diameter of 15-40 um (such as 20 um);
[0036] During the wire drawing process, the wire is subjected to intermediate annealing several times, and N is used in the annealing process 2 As the annealing atmosphere, the effective length of the annealing furnace i...
Embodiment 2
[0049] The gold-palladium-silver alloy composite bonding wire of the present embodiment comprises a core wire and a gold coating coated on the outside of the core wire; the core wire contains 46% gold, 48% silver, and 6% palladium by weight; the gold coating The thickness is 200nm.
[0050] In the present embodiment, the manufacturing method of gold-palladium-silver alloy composite bonding wire comprises the following steps:
[0051] (1) Melting and casting: Gold, silver and palladium are mixed in proportion, and after vacuum melting and directional continuous casting process, a core wire with a diameter of 6 mm is obtained;
[0052] (2) Wire drawing: draw the core wire obtained in step (1) to obtain a core wire with a diameter of 15-40 um (such as 20 um);
[0053] During the wire drawing process, the wire is subjected to intermediate annealing several times, and N is used in the annealing process 2 As the annealing atmosphere, the effective length of the annealing furnace i...
Embodiment 3
[0066] The gold-palladium-silver alloy composite bonding wire of the present embodiment comprises a core wire and a gold coating coated on the outside of the core wire; the core wire contains 72% gold, 25% silver, and 3% palladium by weight; the gold coating The thickness is 25nm.
[0067] In the present embodiment, the manufacturing method of gold-palladium-silver alloy composite bonding wire comprises the following steps:
[0068] (1) Melting and casting: Gold, silver and palladium are mixed in proportion, and after vacuum melting and directional continuous casting process, a core wire with a diameter of 8 mm is obtained;
[0069] (2) Wire drawing: draw the core wire obtained in step (1) to obtain a core wire with a diameter of 15-40 um (such as 20 um);
[0070] During the wire drawing process, the wire is subjected to intermediate annealing several times, and N is used in the annealing process 2 As the annealing atmosphere, the effective length of the annealing furnace is...
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Abstract
Description
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