IMPROVED COMPOSITE DIELECTRIC - Patent 0494204

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EP 0 494 204 A1

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(43)	Date of publication:
	15.07.1992 Bulletin 1992/29

(21)	Application number: 90914380.0

(22)	Date of filing: 17.09.1990

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International Patent Classification (IPC):

C03C 14/ 00^{( . )}
H01L 23/ 15^{( . )}

H01B 3/ 08^{( . )}
H05K 1/ 03^{( . )}

(86)	International application number:
	PCT/US1990/005170

(87)	International publication number:
	WO 1991/004562 (04.04.1991 Gazette 1991/08)

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

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Priority:

25.09.1989 US 19890412328

(71)	Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
	Wilmington Delaware 19898 (US)

(72)	Inventors:
	EWSUK, Kevin, Gregory Wilmington, DE 19805 (US) HARRISON, Larry, Wayne Bear, DE 19701 (US)

(74)	Representative: Jones, Alan John, et al
	CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)

(54)	IMPROVED COMPOSITE DIELECTRIC