Batch assembly of high density hermetic packages for power semic

Details Batch assembly of high density hermetic packages for power semic Batch assembly of high density hermetic packages for power semic

1991-02-28

1992-08-18

Hearn, Brian E.

Dentistry

Prosthodontics

Tooth construction

437205, 437221, H01L 2160

Patent

active

051399725

ABSTRACT:
Batch assembly methods for high density packaging of power semiconductor chips in hermetic thin packagings includes providing silicon chip arrays with thermocompressively bonded foil contacts, preparing ceramic lid arrays which contain upper surface and lower margin direct-bonded copper coverings and through-the-lid high current spherical conductors, coining Cu/Mo/Cu or copper cup arrays, die mounting within each respective cup a respective semiconductor chip, superpositionally registering a lid array with a strip form of cup array, and solder reflowing to hermetically seal all hermetic thin packagings within a registered set of cup and lid arrays.

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patent: 4814943 (1989-03-01), Okuaki
patent: 4985752 (1991-01-01), Crowe et al.
patent: 5018002 (1991-05-01), Neugebauer
MCT Power Packaging by C. A. Neugebauer, J. F. Burgess, H. H. Glascock, V. A. K. Temple, and D. L. Watrous--May 1990.

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