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. 06, 1989
Filed:
Feb. 12, 1988
Hajime Kubosawa, Machida, JP;
Masato Ishiguro, Machida, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A master slice type integrated circuit in which various circuits may be formed by varying the routing of interconnections, comprises a plurality of input/output cells being arranged in a peripheral region on a semiconductor chip; a plurality of basic cell columns each comprising a plurality of basic cells arranged in a predetermined direction, each basic cell constituting transistors; an interconnection region formed on the chip, for accommodating a data bus; and a plurality of latch cells being arranged in the basic cell columns, for keeping a potential of a data bus laid on the interconnection region to prevent the data bus from being changed into a floating state, each latch cell comprising transistors, each of which has a driving capability smaller than that of each transistor of the basic cell.