Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1994-09-26
1995-10-10
Thompson, Gregory D.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
174 163, 257678, 257692, 257706, 257713, 257724, 361715, 361736, 361784, H05K 720
Patent
active
054576040
ABSTRACT:
A semiconductor module device according to the present invention includes a disk-shaped DBC circuit board which are divided into, e.g., six sectorial DBC circuit boards. A plurality of semiconductor pellets are arranged in a staggered fashion on each of the sectorial DBC circuit boards. Externally leading electrodes are provided at the respective innermosts of the sectorial DBC circuit boards, and externally leading power terminals, which are connected to the externally leading electrodes, are extracted from the central part of the DBC circuit board. With this constitution, the distances between the externally leading power terminals and the sectorial DBC circuit boards can be minimized, and the distances between the externally leading power terminals and the semiconductor pellets on the sectorial DBC circuit boards can be uniformed, with the result that the efficiency and reliability of the module device can be improved. Since the DBC circuit board is shaped like a disk, it can be protected from breakage due to the stress concentrated when the device is mounted.
REFERENCES:
patent: 3065384 (1962-11-01), Spruce
patent: 3596140 (1971-07-01), Walsh
patent: 5347160 (1994-09-01), Sutrina
Kabushiki Kaisha Toshiba
Thompson Gregory D.
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