Open-center flexural pivot wire bonding head
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United States of America Patent
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-
Jul 8, 1986
Grant Date -
N/A
app pub date -
May 21, 1984
filing date -
May 21, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A flexural pivot structure useful in a wire bonding machine bonding head (10) is disclosed and includes first and second leaf spring assemblies (39,41) which provide a pivot axis (PA) displaced from the pivoting structure. Each leaf spring assembly includes leaf spring arms (39a,39b,41a,41b) extending outwardly from a central mounting position (39c,41c) so that each assembly forms a truncated vee. The center portions of the leaf springs are secured to a transducer bridge (25) in which a transducer (59) is mounted. The ends of the leaf springs are secured in a bracket (11) with respect to which the transducer (59) pivots about an axis located at the intersection of converging lines along the leaf springs (39a,39b,41a,41b) of each leaf spring assembly (39,41).
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