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:
Aug. 13, 2013
Filed:
Aug. 06, 2012
Yi-fan Chang, Pingjhen, TW;
Su-chueh Lo, Hsinchu, TW;
Cheng-ming Yi, Hsinchu, TW;
Ta Kang Chu, Hsinchu, TW;
Chu Ching Wu, Jhubei, TW;
Kuo Yu Liao, Jhubei, TW;
Ken Hui Chen, Hsinchu, TW;
Kuen Long Chang, Taipei, TW;
Chun Hsiung Hung, Hsinchu, TW;
Yi-Fan Chang, Pingjhen, TW;
Su-chueh Lo, Hsinchu, TW;
Cheng-Ming Yi, Hsinchu, TW;
Ta Kang Chu, Hsinchu, TW;
Chu Ching Wu, Jhubei, TW;
Kuo Yu Liao, Jhubei, TW;
Ken Hui Chen, Hsinchu, TW;
Kuen Long Chang, Taipei, TW;
Chun Hsiung Hung, Hsinchu, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
Various discussed approaches improve the over erase issue and the coupling effect, and include (A) multilevel contacts between (i) the first outer selected word line of an erase group, and (ii) the first unselected word line outside the ease group neighboring the first outer selected word line; (B) a sufficient separation distance between (i) the first outer selected word line of an erase group, and (ii) the first unselected word line outside the ease group neighboring the first outer selected word line. These are examples of electrically isolating (i) the first outer selected word line of an erase group, from (ii) the first unselected word line outside the ease group neighboring the first outer selected word line.