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.

Date of Patent:
Aug. 11, 2015

Filed:

Sep. 02, 2013
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventor:

Naoaki Kanagawa, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 29/02 (2006.01); G11C 7/02 (2006.01); G11C 16/30 (2006.01); G11C 16/00 (2006.01);
U.S. Cl.
CPC ...
G11C 29/021 (2013.01); G11C 7/02 (2013.01); G11C 16/30 (2013.01); G11C 29/028 (2013.01); G11C 16/00 (2013.01);
Abstract

A semiconductor device includes a first transistor connected to an internal voltage terminal and a first node at which a first resistance unit is connected. The first resistance unit includes a resistor connected between the first node and a node from which a monitoring voltage is provided for controlling the first transistor. This resistance unit also includes a first resistance adjustment unit connected in parallel with the first resistor. Also included is a second resistance unit having a third resistor connected between the monitor node and a second node which is connected to a ground potential and a second resistance adjustment unit connected in parallel with the third resistor. A comparator comparing the monitor node voltage to a reference is provided with an output terminal connected the first transistor. Also included is a control circuit to control the resistance adjustment units.


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