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. 17, 2009
Filed:
Nov. 10, 2005
Satoru Kodaira, Chino, JP;
Noboru Itomi, Nirasaki, JP;
Shuji Kawaguchi, Suwa, JP;
Takashi Kumagai, Chino, JP;
Hisanobu Ishiyama, Chino, JP;
Kazuhiro Maekawa, Chino, JP;
Satoru Kodaira, Chino, JP;
Noboru Itomi, Nirasaki, JP;
Shuji Kawaguchi, Suwa, JP;
Takashi Kumagai, Chino, JP;
Hisanobu Ishiyama, Chino, JP;
Kazuhiro Maekawa, Chino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An integrated circuit device having a display memory, wherein a plurality of first power supply interconnects for supplying a first power supply voltage to a plurality of memory cells are provided in a metal interconnect layer in which a plurality of bitlines are formed; wherein a second power supply interconnect for supplying a second power supply voltage to the memory cells is provided in a metal interconnect layer in which a plurality of wordlines are formed, the second power supply voltage being higher than the first power supply voltage; wherein a plurality of bitline protection interconnects are formed in a layer above the bitlines, each of the bitline protection interconnects at least partially covering one of the bitlines in a plan view; and wherein a third power supply interconnect for supplying a third power supply voltage to circuits of the integrated circuit device other than the display memory is provided in a layer above the bitline protection interconnects, the third power supply voltage being higher than the second power supply voltage.