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:
Sep. 29, 2009
Filed:
Jan. 07, 2008
Gong-heum Han, Hwasung-si, KR;
Gong-Heum Han, Hwasung-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A semiconductor memory device includes a memory cell array having memory cells arranged in rows and columns, a row decoder selecting one of the rows and activating the selected row, a bit-line sense amplifier detecting and amplifying data of the memory cells coupled to the selected row through the columns, a data-bus sense amplifier detecting and amplifying data output from the bit-line sense amplifier, and a control logic block enabling the bit-line and data-bus sense amplifiers in a reading operation, operating the data-bus sense amplifier in a semi-latch type mode for a predetermined period, and operating the data-bus sense amplifier in a full-latch type mode after the predetermined period.