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:
Oct. 01, 2013
Filed:
Aug. 03, 2011
Takuya Kadowaki, Tokyo, JP;
Takuya Kadowaki, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
To provide a semiconductor device including a temperature detection circuit that detects a temperature of the semiconductor device and outputs temperature information, a counter circuit that takes a count of repeated inputs of a refresh command and outputs count information, a comparison circuit that activates a match signal when the temperature information matches the count information, and a refresh control circuit that controls whether to perform a refresh operation according to activation of the refresh command based on the match signal. According to the present invention, a refresh cycle can be finely adjusted because the repeated inputs of the refresh command are thinned out based on the temperature information. With this configuration, power consumption caused by the refresh operation can be reduced.