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:
Jul. 17, 2012
Filed:
Oct. 19, 2009
Seong-young Seo, Hwaseong-si, KR;
Seong-Young Seo, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A semiconductor memory device capable of preventing or minimizing bit line disturbance and performing a low-voltage high-speed operation includes a read data path circuit including a bit line sense amplifier, a local input/output line sense amplifier, a column selecting unit to operationally connect bit lines connected to the bit line sense amplifier to local input/output lines connected to the local input/output line sense amplifier in response to a column selection signal, and a local input/output line precharging unit to precharge the pair of local input/output lines by a first precharging unit, equalizing the pair of local input/output lines by an equalizing unit, and to precharge the local input/output lines by a second precharging unit following an elapsed time after the bit line sense amplifier is activated, while the column selection is deactivated.