Multilayer ceramic substrate and method for making the same

Details Multilayer ceramic substrate and method for making the same Multilayer ceramic substrate and method for making the same

1990-04-23

1991-08-27

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of quartz or glass

174256, 428426, 428433, 428434, 428688, 428489, 428699, 428701, 428702, 428901, 501 32, 501 74, 501123, 501125, B32B 1700, B32B 1706

Patent

active

050432230

ABSTRACT:
A multilayer ceramic substrate comprises plural conductive layers and insulation layer for insulating the plural conductive layers, and the insulation layer is made of an inorganic composition comprising at least one member selected from the group of Al.sub.2 O.sub.3 and ZrO.sub.2, SiO.sub.2, PbO, and at least one member selected from the group of BaO, CaO and ZnO in predetermined range. The multilayer ceramic substrate can be sintered at low temperature in the air and is splendid in a heat resistance, a solderability and resistance value of the insulation layer and furthermore, a microcrack is not caused in a laser trimming of a top resistance film.

REFERENCES:
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patent: 4634634 (1987-01-01), Kondo et al.
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patent: 4689270 (1987-08-01), Deckelmann et al.
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patent: 4734316 (1988-03-01), Hees et al.
patent: 4759965 (1988-07-01), Kato et al.
patent: 4767672 (1988-08-01), Fujinaka et al.
Toshio Minowa et al., "Low Temperatures Fired Laminated Ceramic Substrates", Denshizairyo, (Electronic Materials Monthly Publication) published by Kogyo Chosakai, pp. 48-49, vol. 26, No. 5.

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