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:
Jan. 27, 2015
Filed:
Aug. 03, 2012
Hiroshi Tsuda, Kanagawa, JP;
Yoshitaka Kubota, Kanagawa, JP;
Kenichi Hidaka, Kanagawa, JP;
Hiromichi Takaoka, Kanagawa, JP;
Hiroshi Tsuda, Kanagawa, JP;
Yoshitaka Kubota, Kanagawa, JP;
Kenichi Hidaka, Kanagawa, JP;
Hiromichi Takaoka, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
A semiconductor device using resistive random access memory (ReRAM) elements and having improved tamper resistance is provided. The semiconductor device is provided with a unit cell which stores one bit of cell data and a control circuit. The unit cell includes n ReRAM elements (n being an integer of 2 or larger). At least one of the ReRAM elements is an effective element where the cell data is recorded. In reading the cell data, the control circuit at least selects the effective element and reads data recorded thereon as the cell data.