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:
Aug. 24, 2010
Filed:
Jun. 05, 2007
Applicant:
Young Ho Yang, Cheongju-Si, KR;
Inventor:
Young Ho Yang, Cheongju-Si, KR;
Assignee:
Hynix Semiconductor Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of manufacturing a flash memory device is disclosed. The method includes the steps of providing a semiconductor substrate in which a cell region and a select transistor region are defined, etching the semiconductor substrate in the select transistor region so that there is a first step between the cell region and the select transistor region, forming a cell gate in the cell region, and forming a transistor in the select transistor region.