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. 06, 2010
Filed:
Dec. 10, 2007
Kenichi Osada, Tokyo, JP;
Takayuki Kawahara, Higashiyamato, JP;
Ken Yamaguchi, Fuchu, JP;
Yoshikazu Saito, Hamura, JP;
Naoki Kitai, Fussa, JP;
Kenichi Osada, Tokyo, JP;
Takayuki Kawahara, Higashiyamato, JP;
Ken Yamaguchi, Fuchu, JP;
Yoshikazu Saito, Hamura, JP;
Naoki Kitai, Fussa, JP;
Renesas Technology Corp., Tokyo, JP;
Hitachi Ulsi Systems Co., Ltd., Tokyo, JP;
Abstract
A semiconductor device includes a plurality of memory cells, and an error-correction circuit. Its write operation is performed by a late-write method, and ECC processing is executed in parallel with writing to shorten a cycle time. Moreover, when a memory cell is power-supplied through a well tap, the same address is not assigned while the memory cell is power-supplied through the well tap.