摘要:
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.
摘要:
The present invention is directed to a lateral photo-sensing device comprising a first semiconductor layer of a first conductivity type formed on a semi-insulative semiconductor substrate, a second semiconductor layer of a second conductivity type formed on the first semiconductor layer for absorbing a light, a pair of electrodes formed on the second semiconductor layer, rectifying junction being formed between the electrodes and the second semiconductor layer, and a biasing electrode for applying a biasing voltage to the first semiconductor layer. Further the present invention is directed to an opt-electronic integrated circuit using the lateral photo-sensing device and a photo-logic device using the lateral photo-sensing device.
摘要:
A hermetically sealing enclosure for housing photo-semiconductor devices that reduces the heat generated in the wiring strips at the ceramic terminal member, increases the allowable current of the wiring strips in comparison with the conventional enclosures while maintaining the low power consumption, and stabilizes the output of the device in the enclosure. A photo-semiconductor module incorporating the enclosure is also offered. The ceramic terminal member is provided with a first wiring layer that comprises a plurality of wiring strips and that penetrates through the ceramic terminal member; two second wiring layers each of which comprises at least one wiring strip, one of which is connected to the first wiring layer at the outside of the enclosure, and the other of which is connected to the first wiring layer at the inside; and at least one third wiring layer that comprises at least one wiring strip and that connects the two second wiring layers.
摘要:
A sealed airtight container wherein the width of the exposed electrode part provided in a ceramic terminal part is enlarged, and the exposed electrode part is connected to a wiring part and the width of the wiring part is equal to the enlarged width of the electrode part. A sealed airtight container for an optical-semiconductor with a small heat generation in the metallized wiring layer, small power consumption and large current carrying capacity, and an optical-semiconductor module with a stable optical output can be obtained.
摘要:
An object of the present invention is to produce and provide a microbench for achieving a highspeed, low-cost semiconductor module having a high S/N ratio. A microbench for use in mounting an optical fiber, is characterized in that a substrate comprises a ceramics having a specific resistance 109 &OHgr;cm or larger and a dielectric constant of 15 or less, a groove for mounting an optical fiber is disposed on the surface thereof, a semiconductor device mounting portion onto which an optical semiconductor is mounted is provided at the end portion of this groove, and an alignment mark for semiconductor mounting is disposed in this semiconductor device mounting portion. The above-mentioned ceramics is either AlN, or a ceramics having AlN as its principal component.
摘要:
A surface temperature sensor head including a first layer made of a material of a heat conductivity higher than 100 W/mK, a second layer having a crossing tips of a thermocouple and a brazing material and a third layer made of a material of a heat conductivity higher than 100 W/mK, the brazing material unifying the crossing tips, the first layer and the third layer. The sensor head enables a temperature prober to measure temperatures of an object non-destructively with high spatial resolution.
摘要:
This invention provides a package for complex semiconductor devices and a ceramic terminal block useful for the package. For example, the package might contain a semiconductor laser diode and a Peltier device for cooling the laser diode. A ceramic terminal block has metallized electrode patterns formed thereon which extend inside and outside the package. Grooves are formed in some of the metallized electrode patterns for the leads of the Peltier device. Inward extending leads are fixed on the grooves of the electrode patterns for the Peltier leads. The leads of the Peltier device are soldered to the inward leads.
摘要:
This invention relates to an optical device including an optical active device mounted on a frame and integrated by a transparent resin molding as mounted on the frame, the optical device comprising two or more lenses buried in the resin molding facing to the active surface of the optical active device and having an optical axis which coincides with an optical axis of an incident or emitting light of the optical active device.