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Fabrication of back-contacted silicon solar cells using thermomigration to create conductive vias

United States Patent

January 30, 2007
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Methods of manufacturing back-contacted silicon solar cells fabricated using a gradient-driven solute transport process, such as thermomigration or electromigration, to create n-type conductive vias connecting the n-type emitter layer on the front side to n-type ohmic contacts located on the back side.
Gee; James M (Albuquerque, NM), Schmit; Russell R. (Sandia Park, NM)
Advent Solar, Inc. (Albuquerque, NM), Sandia Corporation (Albuquerque, NM)
10/ 606,487
June 26, 2003
FEDERALLY SPONSORED RESEARCH The United States Government has rights in this invention pursuant to Department of Energy Contract No. DE-AC04-94AL85000 with Sandia Corporation.