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. 23, 2013
Filed:
Mar. 02, 2011
Yuko Namiki, Yokohama, JP;
Mitsuaki Honma, Yokohama, JP;
Yuko Namiki, Yokohama, JP;
Mitsuaki Honma, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor memory device includes a memory cell array, a column decoder, and a control circuit configured to control the memory cell array and the column decoder. The control circuit is configured to load program data from outside, to execute a first data program in a first even-numbered bit line, to execute a second data program in a first odd-numbered bit line, to execute a verify read of the programmed bit lines, to determine whether a value of the verify read is programmed up to a predetermined threshold value, and to change, in a case where the value of the verify read fails to be programmed to the predetermined threshold value, an order of the first and second data programs, to execute the second data program in the first odd-numbered bit line, and then to execute the first data program in the first even-numbered bit line.