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.

Date of Patent:
Jul. 18, 2017

Filed:

May. 23, 2016
Applicant:

United Microelectronics Corp., Hsin-Chu, TW;

Inventors:

Yu-Hsiang Hung, Tainan, TW;

Ssu-I Fu, Kaohsiung, TW;

Chih-Kai Hsu, Tainan, TW;

Wei-Chi Cheng, Kaohsiung, TW;

Jyh-Shyang Jenq, Pingtung County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 21/768 (2006.01);
U.S. Cl.
CPC ...
H01L 21/76814 (2013.01); H01L 21/76805 (2013.01); H01L 21/76889 (2013.01); H01L 21/76895 (2013.01);
Abstract

A method for fabricating a semiconductor device includes the following steps: providing a substrate having an epitaxial layer, a gate structure and an interlayer dielectric thereon, where the epitaxial structure is disposed at sides of the gate structure and the interlayer dielectric covering the epitaxial structure; forming an opening in the interlayer dielectric so that the surface of the epitaxial layer is exposed from the bottom of the opening; performing a rapid thermal process in an inert environment until non-conductive material is generated on the surface of the epitaxial layer; and removing the non-conductive material.


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