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:
Sep. 12, 2006
Filed:
Oct. 03, 2003
Applicants:
Hiroshi Shinriki, Matsudo, JP;
Shintaro Aoyama, Nirasaki, JP;
Inventors:
Hiroshi Shinriki, Matsudo, JP;
Shintaro Aoyama, Nirasaki, JP;
Assignee:
Tokyo Electron Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B44C 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dry cleaning process for removing native oxide at improved efficiency is disclosed. The dry cleaning process minimizes the amount of fluorine atoms absorbed on the surface of a processed substrate. Fluorine radicals are provided to the substrate together with hydrogen radicals. The substrate is processed by the reaction of the fluorine radicals and the hydrogen radicals.