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:
Nov. 01, 2022
Filed:
Jun. 29, 2021
Winbond Electronics Corp., Taichung, TW;
Kaoru Mori, Yokohama, JP;
WINDBOND ELECTRONICS CORP., Taichung, TW;
Abstract
A semiconductor memory device can appropriately control operation timing, based on changes in the environment (for example, power supply voltage and temperature, etc.) when in use. The semiconductor memory device includes a temperature sensorthat detects the temperature of the semiconductor memory device, a voltage detection portion (composed of a ring oscillatorand a counter) that detects the power supply voltage of the semiconductor memory device, and a control portionthat controls the operation timing in the semiconductor memory device to meet specific conditions, according to the temperature detected by the temperature sensorafter the power is applied and the voltage detected by the voltage detection portion after the power is applied.