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:
Mar. 17, 2015
Filed:
Mar. 22, 2012
Chun Hsiung Hung, Hsinchu, TW;
Bo-chang Wu, New Taipei, TW;
Kuen-long Chang, Taipei, TW;
Ken-hui Chen, Hsinchu, TW;
Chun Hsiung Hung, Hsinchu, TW;
Bo-Chang Wu, New Taipei, TW;
Kuen-Long Chang, Taipei, TW;
Ken-Hui Chen, Hsinchu, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
A nonvolatile memory array is divided into multiple memory groups. The nonvolatile memory array receives an erase command to erase a first set of the memory groups, and not a second set of the memory groups. The control circuitry is responsive to the erase command to erase the first set of memory groups, by applying a recovery bias arrangement that adjusts threshold voltages of memory cells in at least one memory group of the second set of memory groups. By applying the recovery bias arrangement to memory cells in at least one memory group of the second set of memory groups, erase disturb is corrected during the recovery bias arrangement, at least in part.