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:
Jun. 18, 1991
Filed:
Jan. 26, 1990
Nippon CMK Corp., , JP;
Abstract
A printed wiring board having electromagnetic wave shielding layer for use in the integrated semiconductor circuit is disclosed. The printed wiring board comprises an insulating sheet, printed wiring circuits and grounded wiring circuit which are provided on one surface of the insulating sheet, an insulating layer provided on the surface of the insulating sheet, the printed wiring circuit and the grounded wiring circuit, an electromagnetic wave shielding layer provided on the insulating layer and having a portion contacted to the ground wiring circuit directly, and an over-coating layer provided on the electromagnetic wave shielding layer and having exposed portions placed over the contacted portion of the shielding layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile