Circuit board with high strength and high reliability and proces

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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428328, 428330, 428331, 428446, 428457, 428433, 428209, 428901, 257703, 174257, 174258, B32B 300

Patent

active

060133562

ABSTRACT:
A circuit board having at least one insulator layer and at least one conductor layer which includes at least one of the whole insulator layers in a sintered body containing .beta.-Si.sub.3 N.sub.4 as a main component and at least one element selected from the group consisting of a rare earth element and an alkaline earth element, and at least one of the whole conductor layers contains at least one element selected from the group of IVb, Vb and VIb group of the periodic table, and at least one element selected from the group of a rare earth element and an alkaline earth element, and a Si element.

REFERENCES:
patent: 4770953 (1988-09-01), Horiguchi et al.
patent: 4800137 (1989-01-01), Okuno et al.
patent: 4882212 (1989-11-01), Singh Deo et al.
patent: 5001089 (1991-03-01), Kasori et al.
patent: 5063121 (1991-11-01), Sato et al.
patent: 5286927 (1994-02-01), Ueno et al.
patent: 5294750 (1994-03-01), Sakai et al.

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