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1. (WO2004004928) METHOD OF PROVIDING A METALLIC CONTACT ON A SILICON SOLAR CELL

Pub. No.:    WO/2004/004928    International Application No.:    PCT/US2003/014198
Publication Date: Jan 15, 2004 International Filing Date: May 7, 2003
IPC: B05D 1/18
B05D 3/02
B05D 3/10
B05D 5/12
B32B 9/06
H01L 31/00
Applicants: MACDERMID, INCORPORATED
Inventors: STEINECKER, Carl, P.
Title: METHOD OF PROVIDING A METALLIC CONTACT ON A SILICON SOLAR CELL
Abstract:
An improved process for producing a more uniform deposition of the nickel on the surface of a silicon solar cell comprising the steps of immersing the silicon solar cell into an activator solution comprising gold and a fluoride salt, and subsequently immersing the solar cell into an electroless nickel plating solution. The process provides an improved deposition of nickel on the silicon solar cell, and produces a more uniform deposition of nickel as compared to the prior art. Subsequently to the nickel deposition step, the solar cell may be sintered to produce a nickel silicide layer.