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. 21, 2006
Filed:
Dec. 29, 2004
Yasuo Murakuki, Kyotanabe, JP;
Masahiko Sakagami, Kameoka, JP;
Shunichi Iwanari, Soraku-gun, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A semiconductor memory apparatus including a simple circuit configuration and is capable of randomly accessing fuse data. A fuse cellincluding a fuseis connected to a pair of bit lines of a memory circuit. The fuseand a fuse data output circuit (which includes a resistorand an inverter) are connected to a pair of bit lines BLT and BLB of the memory circuit through a fuse selection switch. By allowing a column decoderfor selecting a pair of bit lines of the memory cell to also function as a decoder circuit for selecting a fuse, the bit lines of the memory circuit can be used as signal lines for outputting fuse data, whereby the circuit size is reduced and the circuit area is reduced.