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:
Aug. 14, 2012
Filed:
May. 18, 2010
Applicants:
Makoto Takizawa, Kanagawa-ken, JP;
Shoichi Ozaki, Kanagawa-ken, JP;
Katsumi Abe, Kanagawa-ken, JP;
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
When bit lines or sense amplifiers are checked whether they are defective during a test performed to check whether the bit lines are defectively open, an electrical current supplied from one sense amplifier is detected by another sense amplifier. Thus, if plural bit lines are defectively open, they can be detected simultaneously. Consequently, the test time can be shortened greatly.
Takizawa, Makoto. (2012). Nonvolatile semiconductor memory device (U.S. Patent No. 8243539). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8243539
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile