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. 11, 2009
Filed:
Sep. 12, 2007
Joon-min Park, Dongjak-gu, KR;
Du-eung Kim, Yongin-si, KR;
Joon-Min Park, Dongjak-gu, KR;
Du-Eung Kim, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A PRAM and programming method are disclosed. The PRAM includes a memory cell array including a test cell, a write driver applying a program pulse and providing a program current to the memory cell array, a sense amplification and verification circuit reading data programmed in the memory cell array and performing a program verify operation on the data, and a program loop control unit storing program verification result for the test cell at each program loop during test operation and generating the program pulse according to the program verification result to control the start of the program loop during normal operation.