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. 07, 1993
Filed:
Jul. 25, 1991
Applicant:
Inventors:
Assignee:
Hitachi Aic Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
174262 ; 174258 ; 174266 ;
Abstract
A printed wiring board obtained by filling a non-electroconductive resin paste containing a metal powder in inner wall metallized through holes of double sided copper-clad insulating substrate, followed by curing by two steps, can mount leadless parts in high mounting density without losing a function of electroconnecting wiring layers.