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:
Jul. 28, 2015
Filed:
Oct. 09, 2011
Le Wang, Wuxi, CN;
Le Wang, Wuxi, CN;
CSMC TECHNOLOGIES FAB1 CO., LTD., Wuxi, CN;
CSMC TECHNOLOGIES FAB2 CO., LTD., Wuxi, CN;
Abstract
A method for fabricating a small-scale MOS device, including: preparing a substrate; forming a first trench in the substrate along a first side of the gate region and forming a second trench in the substrate along a second side of the gate region, the first side of the gate region opposite the second side of the gate region; forming a first lightly doped drain region and a second lightly doped drain region in the first trench and the second trench, respectively; forming a third trench in the substrate overlapping at least a first portion of the first lightly doped drain region and a fourth trench in the substrate overlapping at least a first portion of the second lightly doped drain region; and forming a source region and a drain region in the third trench and the fourth trench, respectively.