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:
May. 03, 2016
Filed:
Sep. 11, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Gen Ohshima, Tokyo, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to one embodiment, a memory system includes a non-volatile memory and a memory controller that controls the non-volatile memory. The non-volatile memory includes a memory cell array and an access control unit. The access control unit performs a program operation for changing threshold voltages of memory cells and a read operation for reading data from the memory cells. The memory controller includes a read/write control unit having a first program parameter set and a second program parameter set. The read/write control unit causes the access control unit to perform a program operation based on the first program parameter set, and when a predetermined condition is satisfied, performs switching from the first program parameter set to the second program parameter set and causes the access control unit to perform a program operation based on the second program parameter set.