IC 반도체 테스트 소켓용 전도성 니켈기(Ni-Based) 합금제조에 관한 연구

다국어 초록 (Multilingual Abstract)

Recently, pure Ni powder, used as conductive powder material for semiconductor test sockets, has disadvantage of decreasing the life cycle of test sockets because of its low hardness (Hv = 100). This study was carried out composition design of the Ni-(0.1~30)wt%X binary alloys and the Ni-3wt%Fe-0.3wt%X ternary alloys, ingot manufacturing, heat treatment, polishing, microstructure observation and characteristic evaluation to develop new Fe-based Electric Conductivity alloy with excellent hardness to replace pure nickel powder. As a result, although the Ni-5wt%Co(Fe) binary alloys with Co and Fe elements is more conductive and magnetic than other alloys, in order to improve hardness, it was found that the adding B and C element is more effective. Meanwhile, it was found that the electrical resistance of alloys depended on Matthiessens rules and mixing rules, the magnetism of alloys is enhanced in proportion to the increase addition of Co and Fe elements. Furthermore, the hardness was found that the presence of solid solution (or intermetallic compound) according to the chemical composition of the alloy, and the precipitation hardening caused by heat treatment were combined.

참고문헌 (Reference)

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