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:
Jun. 21, 2011
Filed:
Feb. 07, 2007
Wen-chiao Ho, Guanmiao Township, Tainan County, TW;
Kuen-long Chang, Taipei, TW;
Chun-hsiung Hung, Hsinchu, TW;
Wen-Chiao Ho, Guanmiao Township, Tainan County, TW;
Kuen-Long Chang, Taipei, TW;
Chun-Hsiung Hung, Hsinchu, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
A method for metal bit line arrangement is applied to a virtual ground array memory having memory cell blocks. Each memory cell block has memory cells and m metal bit lines, wherein m is a positive integer. The method includes the following steps. First, one of the memory cells is selected as a target memory cell. When the target memory cell is being read, the metal bit line electrically connected to a drain of the target memory cell is a drain metal bit line, and the metal bit line electrically connected to a source is a source metal bit line. Next, a classification of whether the other metal bit lines are charged up when the target memory cell is being read is made. Thereafter, the m metal bit lines are arranged such that charged up metal bit lines are not adjacent to the source metal bit line.