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. 11, 2012
Filed:
Oct. 23, 2006
Applicants:
Michael T. Phenis, Markleville, IN (US);
Diane Marie Scheele, Greenwood, IN (US);
Kimberly Dona Pollard, Anderson, IN (US);
Inventors:
Michael T. Phenis, Markleville, IN (US);
Diane Marie Scheele, Greenwood, IN (US);
Kimberly Dona Pollard, Anderson, IN (US);
Assignee:
Dynaloy, LLC, Kingsport, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 7/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Improved dry stripper solutions for removing one, two or more photoresist layers from substrates are provided. The stripper solutions comprise dimethyl sulfoxide, a quaternary ammonium hydroxide, and an alkanolamine, an optional secondary solvent and less than about 3 wt. % water and/or a dryness coefficient of at least about 1. Methods for the preparation and use of the improved dry stripping solutions are additionally provided.