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:
Feb. 27, 2001
Filed:
Jun. 28, 1999
Jong Wook Lee, Kyoungki-do, KR;
Gyu Seog Cho, Kyoungki-do, KR;
Hyundai Electronics Industries Co., Ltd., Kyoungki-do, KR;
Abstract
Disclosed is a method for fabricating CMOS device using a SOI substrate, and more particularly the method for fabricating CMOS device capable of improving mobility of electron and hole. The present invention provides a method for fabricating CMOS device comprising the steps of: providing an SOI substrate having a stacking structure of a base layer, a buried oxide layer and a semiconductor layer, wherein the SOI substrate is divided into a first region where a PMOS is formed later and a second region where an NMOS is formed later; forming first field oxide films to be contacted with the buried oxide layer by applying a thermal oxidation to a selected portion of the semiconductor layer being disposed in the first region of the SOI substrate; forming trenches with a depth to be contacted with the buried oxide layer in a selected portion of the semiconductor layer being disposed in the second region of the SOI substrate and then forming second field oxide films by filling the trenches with an insulating layer; and forming the PMOS in the portion of the semiconductor layer being defined by those first field oxide films, and the NMOS in the portion of the semiconductor layer being defined by those second field oxide films.