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. 17, 2013
Filed:
Jun. 22, 2010
Dallas W. Meyer, Prior Lake, MN (US);
Jason Stephen Corneille, San Jose, CA (US);
Steven Thomas Croft, Menlo Park, CA (US);
Mulugeta Zerfu Wudu, San Jose, CA (US);
William James Mccoll, Palo Alto, CA (US);
Dallas W. Meyer, Prior Lake, MN (US);
Jason Stephen Corneille, San Jose, CA (US);
Steven Thomas Croft, Menlo Park, CA (US);
Mulugeta Zerfu Wudu, San Jose, CA (US);
William James McColl, Palo Alto, CA (US);
MIASOLE, Santa Clara, CA (US);
Abstract
Provided herein are methods of polishing and texturing surfaces thin-film photovoltaic cell substrates. The methods involve laser irradiation of a surface having a high frequency roughness in an area of 5-200 microns to form a shallow and rapidly expanding melt pool, followed by rapid cooling of the material surface. The minimization of surface tension causes the surface to re-solidify in a locally smooth surface. the high frequency roughness drops over the surface with a lower frequency bump or texture pattern remaining from the re-solidification.