Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-05-22
2007-05-22
Trinh, Minh (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S882000, C029S884000, C029S885000, C439S066000, C439S082000
Reexamination Certificate
active
10972514
ABSTRACT:
A method of manufacturing a protruding-volute contact for attaining electrical continuity with an electrode of electronic equipment or inspection equipment, the method comprising the steps of forming a plastic mold (resist structure) with a metal mold; forming a layer consisting of metallic material on the plastic mold (resist structure) by means of electroforming; and performing convex formation of a metal microstructure made from the layer consisting of metallic material so as to form a spiral spring that protrudes volutedly outward. With such method, an inspection contact or coupling contact having high reliability and capable of attaining electrical continuity of large electric current can be produced at low cost.
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Nguyen Donghai D.
Sumitomo Electric Industries Ltd.
Trinh Minh
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