The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1999
Filed:
Jul. 10, 1997
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
174258 ; 174256 ; 174250 ; 361748 ; 428344 ;
Abstract
A multilayer printed wiring board wherein circuits are provided respectively on both the faces of a substrate and subsequent circuits are provided in order and via insulating layers respectively on the outsides of the preceding circuits, characterized in that the insulating layers comprise an epoxy resin, polyvinyl acetal resin, melamine or urethane resin and rubber-modified epoxy resin in a specific mixing ratio.