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. 25, 2011
Filed:
Nov. 06, 2007
Applicant:
Atsunori Hirobe, Kanagawa, JP;
Inventor:
Atsunori Hirobe, Kanagawa, JP;
Assignee:
Renesas Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device of the present invention comprises a first step-down voltage circuit to generate a first step-down voltage lower than an externally-supplied power supply voltage, and a second step-down voltage circuit to generate a second step-down voltage lower than the first step-down voltage. The first step-down voltage circuit has a withstand voltage no lower than the power supply voltage and the second step-down voltage circuit has a withstand voltage no lower than the first step-down voltage.