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:
Mar. 15, 1988
Filed:
Oct. 21, 1985
Applicant:
Inventors:
Bradford Dunham, White Plains, NY (US);
Joseph M Fitzgerald, Rochester, MN (US);
Robert R Williams, Rochester, MN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 68 ; 357 40 ; 357 45 ;
Abstract
A VLSI chip has multiple annular rings of circuit cells, interspersed with annular wiring channels for interconnecting the cells. Another wiring layer runs perpendicular to the rings. A central chip area contains all the I/O connections for the chip.