Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1997-03-03
1998-12-08
Ledynh, Bot L.
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
174261, 361779, H05K 102
Patent
active
058473262
ABSTRACT:
A low-temperature fired ceramic circuit substrate includes a plurality of laminated insulating layers each formed of a low-temperature fired ceramic fired at a temperature ranging between 800 and 1,000.degree. C., an inside layer wiring conductor formed of a conductive material of Ag system which is mainly composed of Ag, the inside layer wiring conductor being disposed in the inside insulating layer, a surface layer wiring conductor formed of a conductive material of Au system which is mainly composed of Au, the surface layer wiring conductor being disposed on the surface insulating layer, and an intermediate metal layer formed of a thick film paste of a conductive material of Au/Ag system which is mainly composed of Au/Ag, the intermediate metal layer being interposed between the inside layer wiring conductor and the surface layer wiring conductor.
REFERENCES:
patent: 4081901 (1978-04-01), Miller
patent: 4621066 (1986-11-01), Nishigaki et al.
patent: 5084323 (1992-01-01), Nagasaka et al.
patent: 5665459 (1997-09-01), Fukuta et al.
Fukuta Junzo
Kawakami Katsuya
Ledynh Bot L.
Soderquist Kristina
Sumitomo Metal Electronics Devices Inc.
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