Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1995-03-14
1997-03-11
Thomas, Laura
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
174257, 361760, 361778, H05K 118
Patent
active
056103719
ABSTRACT:
An electrical connecting device including a first circuit board providing thereon with input/output terminals, each of the terminals having a tip surface coated with gallium and a second circuit board providing thereon with contact terminals, each of the terminals having a tip surface coated with indium or tin. A low-melting point alloy layer is formed by a mutual action between gallium and indium or tin, when the input/output terminals of the first circuit board are in contact with the respective terminals of the second circuit board and the terminals are electrically connected to each other. The second metal layer includes a plurality of wire-like metal supports extending substantially perpendicular to the surface of the terminal and a low-melting point metal retained by the wire-like metal supports.
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IBM Technical Disclosure Bulletin, Paste-Encapsulated Terminal, J. R. Petrozello, vol. 21, No. 11, Apr. 1979, pp. 4444-4445.
Chiyonobu Tatuo
Hashimoto Kaoru
Kawano Kyoichiro
Wakamura Masato
Watanabe Koji
Fujitsu Limited
Thomas Laura
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