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:
Jan. 07, 2014
Filed:
Dec. 30, 2010
Ka Young Cho, Chungeheoungbuk-do, KR;
Young Soo Park, Seoul, KR;
Ka Young Cho, Chungeheoungbuk-do, KR;
Young Soo Park, Seoul, KR;
Hynix Semicondustor Inc., Gyeonggi-do, KR;
Abstract
A semiconductor memory device includes a voltage generator configured to supply a program voltage, a sub-verification voltage, or a target verification voltage to memory cells selected during a program operation, page buffers configured to latch first data according to results from comparing threshold voltages of the selected memory cells with the sub-verification voltage and latch second data according to results from comparing the threshold voltages of the memory cells with the target verification voltage, a sub-pass check circuit configured to output a sub-pass signal in response to the first data outputted from the page buffers, a main pass check circuit configured to output a main pass signal in response to the second data outputted from the page buffers, and a control circuit configured to control whether the voltage generator supplies the sub-verification voltage and the target verification voltage in response to the sub-pass signal and the main pass signal.