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:
Jun. 12, 2007
Filed:
Jun. 24, 2005
Applicants:
Sang Don Lee, Gyeonggi-do, KR;
Yil Wook Kim, Seoul, KR;
Jin Hong Ahn, Gyeonggi-do, KR;
Inventors:
Assignee:
Hynix Semiconductors, Inc., Icheon-si, Gyeonggi-do, KR;
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/336 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention discloses an improved DRAM of semiconductor device and method for manufacturing the same wherein an ONO (oxide-nitride-oxide) structure for trapping electrons or holes used in a non-volatile memory is employed in a gate insulating film of the DRAM to reduce impurity concentrations of a channel region and a well region.
Lee, Sang. (2007). Dynamic random access memory of semiconductor device and method for manufacturing the same (U.S. Patent No. 7229881). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7229881
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile