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. 06, 2013
Filed:
Jun. 30, 2010
Chang Won Yang, Icheon-si, KR;
Chang Won Yang, Icheon-si, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
A programming method comprised of: classifying memory cells to be programmed into first, second and third levels; applying a program inhibition voltage to an unselected bit line, applying a ground voltage to bit lines, which are coupled with memory cells that are to be programmed into the third level, among selected bit lines, and applying a first voltage, which is lower than the program inhibition voltage but higher than a ground voltage, to bit lines coupled with memory cells that are to be programmed into the second level, and applying a second voltage, which is lower than the program inhibition voltage but higher than the first voltage, to bit line coupled with memory cells that are to be programmed into the first level; and supplying a program voltage, which gradually increases, to a selected word line coupled with the memory cells while applying the voltages to the bit lines.