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:
May. 29, 2007
Filed:
Sep. 30, 2005
Won-jun Jang, Seoul, KR;
Jung-hwan Kim, Gyeonggi-do, KR;
Jai-dong Lee, Gyeonggi-do, KR;
Young-sub You, Gyeonggi-do, KR;
Sang-hun Lee, Gyeonggi-do, KR;
Hun-hyeoung Leam, Gyeonggi-do, KR;
Won-Jun Jang, Seoul, KR;
Jung-Hwan Kim, Gyeonggi-do, KR;
Jai-Dong Lee, Gyeonggi-do, KR;
Young-sub You, Gyeonggi-do, KR;
Sang-Hun Lee, Gyeonggi-do, KR;
Hun-Hyeoung Leam, Gyeonggi-do, KR;
Abstract
Methods of fabricating a floating gate of a flash memory cell are provided in which a first polysilicon layer is formed between first and second isolation layers. An upper region of the first polysilicon layer is then oxidized. The oxidized upper region of the first polysilicon layer is subsequently removed. A second polysilicon layer is formed on the first polysilicon layer. The second polysilicon layer and the first polysilicon layer are patterned to form the floating gate.