Multilayer ceramic circuit board

Details Multilayer ceramic circuit board Multilayer ceramic circuit board

1986-07-23

1987-06-09

Kucia, R. R.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

361414, 428210, 428901, 501 69, H05K 103

Patent

active

046721525

ABSTRACT:
A ceramic insulating layer (2) for the multilayer ceramic circuit board (11) consists of 60 wt % of crystallized glass and 40 wt % of a filler such as silicon dioxide bonded by the crystallized glass, which consists of 6-15 wt % of lithium oxide, 70-90 wt % of silicon dioxide, 1-8 wt % of aluminum oxide, 1-5 wt % of alkaline metal oxide other than lithium oxide and 2-5 wt % of alkaline earth metal oxide. The sintered ceramic insulating layer (2) has a dielectric constant below 6.1 and a flexural strength above 150 MPa and is co-firable with a wiring conductor layer of such as gold, silver and copper.

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patent: 4598167 (1986-07-01), Ushifusa et al.
patent: 4620264 (1986-10-01), Ushifusa et al.

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