Electric heating – Metal heating – By arc
Patent
1997-02-06
1999-09-07
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
21912164, B23K 2600
Patent
active
059482869
ABSTRACT:
Thin film diffusion bonding of lead assemblies under severly limited spacing, thermal and pressure conditions is achieved through application of precisely controlled energy at the bond interface. The precisely controlled energy is a laser thermosonic energy pulse, delivered through a cleaved optical fiber end and closed end tip, that produces a heat increment in excess of the steady state manufacturing design temperature for the assembly and which is applied directly at the bond interface.
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"Discrete Wire Bonding Using Laser Energy" by P. Chalco et al Semiconductor International, May 1988 pp. 130-131.
Chalco Pedro A.
Horton Raymond Robert
Narayan Chandrasekhar
Palmer Michael Jon
Evans Geoffrey S.
International Business Machines - Corporation
Morris Daniel P.
Riddles Alvin J.
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