Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1979-10-26
1982-01-26
Kucia, Richard R.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
174152GM, 361414, H05K 103
Patent
active
043130267
ABSTRACT:
A multilayer circuit board (10) for putting semiconductor devices thereon consists of conductor layers (6, 60, 61, 62, 63) made of a metal selected from the group consisting of Au, Ag, Cu and an alloy thereof, insulating material (2, 7) made of glass-ceramic and an alumina sintered plate (1). The glass-ceramic is comprised of borosilicate glass and alumina and has a low dielectric constant and a thermal expansion coefficient approaching that of the semiconductor devices. The alumina sintered plate (1) is placed between the ground and supply voltage conductor layers (62, 63) and the signal conductor layers (60).
REFERENCES:
patent: 2885826 (1959-05-01), Grieve et al.
patent: 3200298 (1965-08-01), Garibotti
patent: 3312870 (1967-04-01), Rhoades
patent: 3423517 (1969-01-01), Arrhenius
patent: 3723176 (1973-03-01), Theobald et al.
patent: 4047132 (1977-09-01), Kratjewski
Grubb, H. R., "Densely-Packaged Magnetic Film Memory", IBM Tech. Disc. Bull., vol. 14, No. 4, Sep. 1971, p. 1145.
Hashimoto Kaoru
Kamehara Nobuo
Murakawa Kyohei
Niwa Koichi
Yamada Seiichi
Fujitsu Limited
Kucia Richard R.
LandOfFree
Multilayer circuit boards does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multilayer circuit boards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayer circuit boards will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1667793