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. 21, 2009
Filed:
Jun. 30, 2006
Hi-hyun Han, Ichon-shi, KR;
Hi-Hyun Han, Ichon-shi, KR;
Hynix Semiconductor, Inc., Gyeonggi-do, KR;
Abstract
A semiconductor memory device controls the voltage level of an equalization signal to be a boost voltage VPP for a predetermined time period and then to be an external power supply voltage VDD, when the equalization signal is repeated by a repeater. In order to improve bit line precharging performance of the bit line precharge portion enabled by the equalization signal, a rising interval of the equalization signal is activated as the boost voltage. Precharging is then performed with the external supply voltage after a predetermined time period. Thus, a thin gate insulating membrane can be used in a transistor in the bit line precharge portion which receives the equalization signal can be formed.