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

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:865179

Coyle, R T ^[1]; Barrett, Joy M ^[2]

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1. Lakewood, CO
2. Eldorado Springs, CO

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.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• DOE Contract Number: EG-77-C-01-4042
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4475682
• OSTI ID: 865179
• Country of Publication: United States
• Language: English

Related Subjects

process
reducing
series
resistance
solar
cell
metal
contact
systems
soldering
flux
etchant
disclosed
substantially
thick
film
assembly
thereon
simultaneously
removing
oxide
coatings
surface
prior
applying
solder
therewith
heating
period
time
sufficient
remove
associated
etching
oxides
removing metal
series resistance
simultaneously removing
metal contact
substantially remove
oxide coating
thick film
time sufficient
solar cell
metal oxide
metal oxides
substantially reducing
moving metal
removing oxide
film metal
cell metal
oxide coatings
assembly thereon
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