DEVITRIFYING GLASS FORMULATIONS FOR LOW EXPANSION PRINTED-CIRCUIT SUBSTRATES AND INKS

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EP 0 454 734 A1

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(43)	Date of publication:
	06.11.1991 Bulletin 1991/45

(21)	Application number: 90902042.0

(22)	Date of filing: 02.01.1990

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International Patent Classification (IPC):

C03C 3/ 083^{( . )}
C03C 10/ 00^{( . )}
H01L 21/ 48^{( . )}
H05K 1/ 03^{( . )}

C03C 8/ 16^{( . )}
H01B 3/ 08^{( . )}
H01L 23/ 15^{( . )}
H05K 1/ 09^{( . )}

(86)	International application number:
	PCT/US1990/000005

(87)	International publication number:
	WO 1990/008110 (26.07.1990 Gazette 1990/17)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB IT LI LU NL SE

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Priority:

19.01.1989 US 19890299104
21.09.1989 GB 19890021386
15.12.1989 US 19890450990

(71)	Applicant: DAVID SARNOFF RESEARCH CENTER
	Princeton, NJ 08543-5300 (US)

(72)	Inventors:
	PRABHU, Ashok, Narayan E Windsor, NJ 08520 (US) HANG, Kenneth, Warren Westchester, PA 19382 (US) CONLON, Edward, James Princeton, NJ 08520 (US)

(74)	Representative: Targett, Kenneth Stanley
	D. Young & Co., 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)

(54)	DEVITRIFYING GLASS FORMULATIONS FOR LOW EXPANSION PRINTED-CIRCUIT SUBSTRATES AND INKS