Wire cleaning guide
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United States of America Patent
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Oct 9, 2012
Grant Date -
Aug 21, 2008
app pub date -
Feb 14, 2008
filing date -
Feb 15, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wire cleaning guide for guiding a wire in a feed direction and to clean the wire, including a gas supply nozzle for supplying plasma generating gas, a plasma generating chamber with plasma generating gas supplied from the gas supply nozzle thereto for transforming the plasma generating gas into plasma by energizing a bonding wire that passes there through to clean the wire by means of the plasma gas, and wire-feeder-side and bonding-tool-side guide holes for guiding the wire in the feed direction, the diameter of the wire-feeder-side guide hole is greater than that of the bonding-tool-side guide hole so that the outflow rate of gas after wire cleaning flowing between the wire-feeder-side guide hole and the wire is greater than that of gas after wire cleaning flowing between the bonding-tool-side guide hole and the wire.
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