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:
Apr. 08, 2008
Filed:
Dec. 31, 2003
Applicants:
Anthony Dicarlo, Richardson, TX (US);
Lisa A. Wesneski, The Colony, TX (US);
Inventors:
Anthony DiCarlo, Richardson, TX (US);
Lisa A. Wesneski, The Colony, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/302 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of removing the pattern resist that remains on a microchip wafer after etching a patterned layer that is supported by a spacer layer. After the etch, the wafer is cleaned with a develop clean process that removes polymer residues from the pattern resist surface. Next is an ash to remove the hardened pattern resist surface, followed by removal of the pattern resist.