Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Patent
1996-11-12
1998-09-01
Saadat, Mahshid D.
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
257115, 257116, 257 88, H01L 310203, H01L 2974, H01L 31111, H01L 2348
Patent
active
058014292
ABSTRACT:
It is an object of the present invention to fix a semiconductor substrate and a thermal compensating plate in the alloy-free structure. An insulation resin (23) for side wall protection fixed on the outer periphery of a semiconductor substrate (1) and a projection (6a) inside an insulation tube are bonded with an adhesive agent (24) to restrict movements of the semiconductor substrate (1) in the radial direction. A thermal compensating plate (3) and a main electrode (5) are normally positioned with each other by a screw pin (32). A fixing ring (30) having resin or metal such as aluminum or the like which fits to the outer peripheral side of the main electrode (4) and the outer peripheral side of the thermal compensating plate (2) and the edge part of the upper main surface thereof restricts movement of the thermal compensating plate (2) in the radial direction. Further, a spring (31) interposed between a flange portion (4c) of the main electrode (4) and the fixing ring (30) presses and energizes the thermal compensating plates (2, 3) and the semiconductor substrate (1) against the main electrode (5). Since the free movements of the semiconductor substrate and the thermal compensating plates is restricted, the semiconductor substrate can be prevented from damage.
REFERENCES:
patent: 4677454 (1987-06-01), Kiyohara
patent: 4719500 (1988-01-01), Tokunoh
patent: 5345096 (1994-09-01), Gruning
Patent Abstracts of Japan, vol. 12, No. 385 (E-668)(3232), Oct. 14, 1988, JP 63-128650, Jun. 1, 1988.
Hirasawa Kyotaro
Konishi Yuzuru
Taguchi Kazunori
Clark Jhihan B.
Mitsubishi Denki & Kabushiki Kaisha
Saadat Mahshid D.
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