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:
Nov. 11, 2008
Filed:
Jan. 31, 2007
Ming-hung Chou, Hsinchu, TW;
Fuja Shone, Hsinchu, TW;
Ming-Hung Chou, Hsinchu, TW;
Fuja Shone, Hsinchu, TW;
Skymedi Corporation, Hsinchu, TW;
Abstract
A method for reading a memory array is disclosed. The method includes turning on the column of select gates; preprogramming a first right floating gate to a high threshold and a first left floating gate coupled to a same first word line as the first right floating gate to a low threshold; charging a voltage of the right data line to a first predetermined value; charging a voltage of the first word line to a second predetermined value which is between the high threshold of the first right floating gate and the low threshold of the first left floating gate; charging a voltage of a second word line coupled to a second right floating gate to a third predetermined value; and comparing a current of the left data line with a fourth predetermined value.