Patent ID: 6504248
Filing Date: 2003-01-07
Classification: H01L,H05K

Abstract:
A thin film circuit substrate comprising:a substrate; a lower thin film electrode provided on the surface of said substrate; an organic insulating film having a via hole, said organic insulating film provided to cover at least said lower thin film electrode; and an upper thin film electrode provided on said organic insulating film, said upper thin film being connected to said lower thin film electrode through said via hole, wherein an oxidized surface film of said lower thin film electrode is removed at a region where said lower thin film electrode is connected to said upper thin film electrode through said via hole; and a modified surface layer is provided on the surface of said organic insulating film, the modified surface layer having a surface modification coefficient of about 0.1 to about 0.5 determined by equation (1): surface modification coefficient=total amount of the functional groups/total amount of C existing on the surface of the organic insulating film (1).