Process for reducing series resistance of solar cell metal contact systems with a soldering flux etchant

Patent · Tue Oct 09 00:00:00 EDT 1984

OSTI ID:6076451

Coyle, R T; Barrett, J M

Disclosed is a process for substantially reducing the series resistance of a solar cell having a thick film metal contact assembly thereon while simultaneously removing oxide coatings from the surface of the assembly prior to applying solder therewith. The process includes applying a flux to the contact assembly and heating the cell for a period of time sufficient to substantially remove the series resistance associated with the assembly by etching the assembly with the flux while simultaneously removing metal oxides from said surface of said assembly.

• Assignee: Dept. of Energy
• Patent Number(s): US 4475682
• OSTI ID: 6076451
• Resource Relation: Patent File Date: Filed date 4 May 1982; Other Information: PAT-APPL-374675
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
ELECTRIC CONTACTS
ELECTRIC CONDUCTIVITY
ETCHING
SOLAR CELLS
FILMS
HEATING
METALLURGICAL FLUX
METALS
OXIDES
SOLDERING
CHALCOGENIDES
DIRECT ENERGY CONVERTERS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
FABRICATION
JOINING
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR EQUIPMENT
SURFACE FINISHING
WELDING
140501* - Solar Energy Conversion- Photovoltaic Conversion