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:
Jun. 24, 2014
Filed:
Aug. 28, 2012
Applicants:
Fuchen Mu, Austin, TX (US);
Yanzhuo Wang, Austin, TX (US);
Inventors:
Fuchen Mu, Austin, TX (US);
Yanzhuo Wang, Austin, TX (US);
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device comprises a memory controller, and an array of memory cells coupled to communicate with the memory controller. The memory controller is configured to perform a first soft program operation using first soft program voltages and a first soft program verify level, and determine whether a first charge trapping threshold has been reached. When the first charge trapping threshold has been reached, a second soft program operation is performed using second soft program voltages and a second soft program verify level.