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:
Jul. 12, 2005
Filed:
Aug. 20, 2003
Mu-yi Liu, Taichung, TW;
Chih-chieh Yeh, Taipei, TW;
Tso-hung Fan, Banciao, TW;
Tao-cheng LU, Kaohsiung, TW;
Mu-Yi Liu, Taichung, TW;
Chih-Chieh Yeh, Taipei, TW;
Tso-Hung Fan, Banciao, TW;
Tao-Cheng Lu, Kaohsiung, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
To reduce the disturbance between adjacent memory cells, an improved ONO flash memory array is implanted with a pocket on one side of the channel of each memory cell or two pockets of different concentrations on both sides of the channel, thereby resulting in memory cells with asymmetric pockets. Consequently, no disturbances occurred between adjacent memory cells when the ONO flash memory array is programmed or erased by band-to-band techniques, and the disturbances between adjacent memory cells are also suppressed during reading process.