Air-tightly sealed container for photosemiconductor, and photose

Details Air-tightly sealed container for photosemiconductor, and photose Air-tightly sealed container for photosemiconductor, and photose

1998-05-01

1999-08-31

Arroyo, Teresa M.

Active solid-state devices (e.g., transistors, solid-state diode

Responsive to non-electrical signal

Electromagnetic or particle radiation

257 98, 257680, H01L 3300, H01L 310232, H01L 2302

Patent

active

059457210

ABSTRACT:
A highly reliable air-tightly sealed container having a light transmissive window member formed of a borosilicate glass plate 4 and brazed to a cylindrical portion of a container side wall, the borosilicate glass plate being formed to a substantially right hexagonal shape and provided with a metallized portion 5 on an outer circumferential portion thereof with a circular light transmissive portion 6 left in the central part thereof, a diameter L.sub.1 of a circle inscribing the outer circumference of the borosilicate glass plate 4 and a diameter L.sub.2 of the light transmissive portion being in the relation of L.sub.2 /L.sub.1 .ltoreq.0.85. The thickness L.sub.3 of the borosilicate glass plate is 0.11-0.25 times as large as the diameter L.sub.1 mentioned above. The air-tightly sealed container uses a low-price borosilicate glass as the window member and free from the breakage of the borosilicate glass plate and the leakage of gas. A reliable photosemiconductor module can be obtained using the container.

REFERENCES:
patent: 4940675 (1990-07-01), Bohlayer et al.

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