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:
Mar. 24, 2009
Filed:
Apr. 27, 2006
Yong-tae Cho, Ichon-shi, KR;
Suk-ki Kim, Ichon-shi, KR;
Yong-Tae Cho, Ichon-shi, KR;
Suk-Ki Kim, Ichon-shi, KR;
Hynix Semiconductor Inc., Kyoungki-do, KR;
Abstract
A method for fabricating a semiconductor device with a bulb shaped recess gate pattern includes selectively etching a first portion of a substrate to form a first recess; forming a spacer on sidewalls of the first recess; performing an isotropic etching process on a second portion of the substrate beneath the first recess to form a second recess, the second recess being wider and more rounded than the first recess; removing the spacer; and forming a gate pattern having a first portion buried into the first and second recesses and a second portion projecting over the substrate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile