Open-center flexural pivot wire bonding head

Details Open-center flexural pivot wire bonding head Open-center flexural pivot wire bonding head

1984-05-21

1986-07-08

Godici, Nicholas P.

Metal fusion bonding

With means to juxtapose and bond plural workpieces

Wire lead bonder

228 10, 228 45, 267160, B23K 3702

Patent

active

045988536

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).

REFERENCES:
patent: 2177398 (1939-10-01), Aller
patent: 2901284 (1959-08-01), Page
patent: 2920498 (1960-01-01), Federn
patent: 3408061 (1968-10-01), Meyer
patent: 3543988 (1970-12-01), Kulicke, Jr.
patent: 3941486 (1976-03-01), Tyler
patent: 4051830 (1977-11-01), Gruber
patent: 4438880 (1984-03-01), Smith
patent: 4497465 (1984-10-01), Yeakly et al.

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