Abstract: Electrical interconnects for solar cells or other electronic components using a silver-silicone paste or a lead-tin (Pb—Sn) no-clean fluxless solder cream, whereby the high breakage of thin (<6 mil thick) solar cells using conventional solder interconnect is eliminated. The interconnects of this invention employs copper strips which are secured to the solar cells by a silver-silicone conductive paste which can be used at room temperature, or by a Pb—Sn solder cream which eliminates undesired residue on the active surfaces of the solar cells. Electrical testing using the interconnects of this invention has shown that no degradation of the interconnects developed under high current testing, while providing a very low contact resistance value.
Type:
Grant
Filed:
June 6, 1995
Date of Patent:
June 11, 2002
Assignee:
The Regents of the University of California
Inventors:
Paul G. Carey, Jesse B. Thompson, Nicolas J. Colella, Kenneth A. Williams
Abstract: Deactivated atomic nitrogen generated by an electron beam from a gas stream containing more than 99% N2 is injected at low temperatures into an engine exhaust to reduce NOx emissions. High NOx reduction efficiency is achieved with compact electron beam devices without use of a catalyst.
Type:
Grant
Filed:
March 2, 2000
Date of Patent:
February 12, 2002
Assignee:
The Regents of the University of California