Wire bonding method
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United States of America Patent
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-
Nov 24, 2009
Grant Date -
May 17, 2007
app pub date -
Nov 14, 2006
filing date -
Nov 14, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wire bonding method including the steps of: descending a capillary 5 from above an external lead 1 to press a wire 10 to such an extent that the wire is not completely connected to the external lead 1, thus forming a thin part 16 in the wire; next ascending the capillary 5 and the thin part 16 to substantially the same height as a first bonding point A, then moving the capillary 5 in a direction away from the first bonding point A, thus making a linear wire portion 18 and then cutting the wire at the thin part 16; then connecting the end 19 (thin part) of the linear wire portion 18 and the wire tip end 20 at the lower end of the capillary 5 are connected to the external lead 1; and then separating the wire tip end 20 from the external lead 1.
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