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:
Aug. 21, 2001
Filed:
Nov. 20, 1998
Linda Jiang, Fremont, CA (US);
Diane J. Hymes, San Jose, CA (US);
Lam Research Corporation, Fremont, CA (US);
Abstract
Provided is a method for cleaning hydrophobic surfaces, such as low K dielectric organic or inorganic surfaces as well as metallization surfaces of a semiconductor wafer. The method includes: (a) applying a surfactant solution to the surface; (c) scrubbing the surface; and (c) spin-rinsing the surface of the substrate using de-ionized water to complete a removal of any contaminants from the surface. If needed, the surfactant solution can be mixed with a chemical enhancer, and the scrubbing can be performed in a brush system. The brush system may be configured to apply DI water using a through the brush (TTB) technique. The surfactant solution can be applied either using a drip technique or using the TTB technique.