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:
Sep. 22, 2009
Filed:
Dec. 12, 2006
Chao-i Wu, Tainan, TW;
Ming-hsiang Hsueh, Hsinchu, TW;
Chao-I Wu, Tainan, TW;
Ming-Hsiang Hsueh, Hsinchu, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
A method for operating memory used for enabling the memory device to have a first threshold voltage or a second threshold voltage is provided. The method includes the following procedures. First, an operating voltage is applied to a gate of the memory device for a first time period, such that the memory device has the first threshold voltage. Next, the same operating voltage is applied to the gate of the memory for a second time period, such that the memory device has a second threshold voltage. The duration of the first time period is different from the duration of the second time period.