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:
Feb. 06, 2007
Filed:
Aug. 04, 2005
Han-joo Lee, Seoul, KR;
Kang-woon Lee, Seoul, KR;
Byung-jun Min, Yongin-si, KR;
Byung-gil Jeon, Suwon-si, KR;
Han-Joo Lee, Seoul, KR;
Kang-Woon Lee, Seoul, KR;
Byung-Jun Min, Yongin-si, KR;
Byung-Gil Jeon, Suwon-si, KR;
Abstract
A reference voltage generating device that provides a constant reference voltage even with temperature change in a ferroelectric random access memory and a method for driving the same are provided. A device for generating a reference voltage in a ferroelectric random access memory including memory cells, each of which has one ferroelectric capacitor and one access transistor, includes a reference cell composed of a ferroelectric capacitor and a transistor; a reference plate line connected to one end of the ferroelectric capacitor constituting the reference cell; and a reference plate line driver circuit for adjusting a voltage level of a reference plate line enable signal depending on temperature change so that a constant reference voltage is generated.