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:
Feb. 11, 1992
Filed:
Dec. 13, 1989
Applicant:
Inventors:
Assignee:
Shinko Electric Industries Co., Ltd., Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
428596 ; 428622 ; 428672 ; 428674 ; 174 524 ; 361421 ;
Abstract
A TAB tape or tape-like carrier used for an automatic bonding process when manufacturing high-frequency semiconductor devices has a plurality of electrically conductive circuit patterns on a flexible insulative film having a plurality of holes located in gaps between adjacent circuit pattterns. A ground layer is formed on a back surface of the insulative film, and electrically conductive layers or material are formed on inner peripherals walls of the holes or filled in the holes, so that the ground layer is electrically connected to the respective conductive layers or material.