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:
Apr. 24, 1990
Filed:
Jun. 29, 1988
Applicant:
Inventor:
Robert E Ruane, Endicott, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
29846 ; 29848 ; 29424 ; 1563069 ; 1563075 ;
Abstract
Two cores for circuit boards or cards are simultaneously processed. In particular, two cores are provided wherein each is a dielectric material having conductive planes on both major surfaces thereof. The two cores are temporarily fixed together by sealing the peripheral face planes thereof. The two external conductive planes are then simultaneously processed to thereby form signal patterns. The seal is then removed from the peripheral face planes and the two cores are separated from each other, thereby simultaneously providing the two cores.