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:
Mar. 18, 2014
Filed:
Sep. 23, 2011
Yong Deok Cho, Gyeonggi-do, KR;
Yong Deok Cho, Gyeonggi-do, KR;
Hynix Semiconductor Inc., Gyeonggi-do, KR;
Abstract
A semiconductor memory device includes a first page buffer group including a plurality of page buffers coupled to memory cells of a first memory array through bit lines, a second page buffer group, a coupling circuit configured to couple an output terminal and an inverse output terminal of a selected page buffer of the first page buffer group to a first local I/O line and a first inverse local I/O line, respectively, or an output terminal and an inverse output terminal of a selected page buffer of the second page buffer group to a second local I/O line and a second inverse local I/O line, respectively, in response to a column select signal, and a sense amplifier configured to detect a voltage difference between the first local I/O line and the first inverse local I/O line or between the second local I/O line and the second inverse local I/O line.