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. 28, 2000
Filed:
Dec. 03, 1997
Applicant:
Inventors:
Koji Shibutani, Tokyo, JP;
Koji Nii, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257206 ; 257369 ; 257401 ; 257903 ;
Abstract
A layout pattern of a memory cell circuit has a plurality of basic cells. Each basic cell has a small aspect ratio. Each basic cell has a NMOS transistor and a PMOS transistor. In the layout pattern, one basic cell is arranged in each row direction and the sixteen basic cells are arranged in each column direction.