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. 25, 2003
Filed:
Oct. 18, 2001
Applicant:
Inventors:
William H. Mullee, Portland, OR (US);
Marc de Leeuwe, Tucson, AZ (US);
Glenn A. Roberson, Jr., Hollister, CA (US);
Assignee:
Tokyo Electron Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/100 ;
U.S. Cl.
CPC ...
H01L 2/100 ;
Abstract
A method of removing Chemical Mechanical Polishing (CMP) residue from a semiconductor substrate is disclosed. The semiconductor substrate with the CMP residue on a surface is placed within a pressure chamber. The pressure chamber is then pressurized. Supercritical carbon dioxide and a solvent are introduced into the pressure chamber. The supercritical carbon dioxide and the chemical are maintained in contact with the semiconductor substrate until the CMP residue is removed from the semiconductor substrate. The pressure chamber is then flushed and vented.