Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1988-09-15
1990-07-17
Hille, Rolf
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
357 71, 357 80, 361412, 361413, 361393, H01L 2348, H01L 2944, H01L 2952, H01L 2960
Patent
active
049424530
ABSTRACT:
A device for packaging many memory IC chips having a plurality of common connecting terminals on a main circuit board. A plurality of IC chips are packaged on an auxiliary board to make an IC chip unit, and a plurality of IC chip units are aligned on the main circuit board. The connections between unit-connecting terminals provided on the respective IC chip units and the main circuit board are made by means of wiring patterns on the main circuit board.
REFERENCES:
patent: 3260982 (1966-07-01), Bostwick
patent: 3300686 (1967-01-01), Johnson et al.
patent: 4439809 (1984-03-01), Weight et al.
patent: 4626961 (1986-12-01), Ono et al.
patent: 4704599 (1987-11-01), Kimmel et al.
patent: 4780792 (1988-10-01), Harris et al.
Ichikawa Shingo
Iinuma Yoshio
Ishida Yoshihiro
Citizen Watch Co. Ltd.
Hille Rolf
Le Hoang-anh
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