摘要:
The disclosure relates to a bispectral electromagnetic wave detector including at least one first and one second overlaid plane active detector elements separated by a common layer, said first and second detector elements being sensitive to the different wavelengths; a first means of connection connected in common to said first and second detector elements, a second means of connection connected to said first detector element, and a third means of connection connected to said second detector element; means for applying successively a control voltage to each means of connection; and means connected to said first means of connection to detect a photoconduction current each time a control voltage is applied. The invention is used in applications requiring detection of electromagnetic waves in two bands of different wavelengths.
摘要:
An improved photocell configuration is provided to create a more accurate laser receiver that not only is very accurate and flexible in its operational capabilities, but also can greatly reduce the effect of rotational offset due to shading of the photocell. In one embodiment, a very long photocell is provided in which multiple split-cells are used to present a geometry that will tend to negate some of the effects of shading. The shading effects are minimized by having a different active photocell area along each vertical edge of the photocell. In another embodiment, a "segmented" photocell is used, in which the split-cell design of a long photocell is also divided into vertical segments. These segments can be re-configured so that alternating segments comprise a mirror image about the longitudinal of the long photocell. Such an arrangement tends to reduce the effect of rotational offset due to shading to an extremely small percentage of error. The segmented photocell configuration of the present invention is capable of being manufactured in "cell units" of relatively small length that can be stacked up next to one another to build a very long photocell. Each of the smaller segmented photocell structures can be manufactured using standard integrated circuit processing in lengths of less than two inches for ease of manufacture.
摘要:
A microwave plasma chemical vapor deposition apparatus for forming a functional deposited film on a plurality of Substrates which includes a substantially enclosed film-forming chamber comprising an outer wall having an end portion thereof provided with a microwave introducing window to which a waveguide extending from a microwave power source is connected, The film-forming chamber has a cylindrical discharge space encircled by a plurality of rotatable cylindrical substrate holders. Each of the cylindrical substrate holders has a substrate thereon. The cylindrical substrate holders are concentrically arranged in the film-forming chamber. The film forming chamber is provided with means for evacuating the film-forming chamber and means for supplying a raw material gas into the discharge space. The means for supplying the raw material gas comprises one or more gas feed pipes provided with a plurality of gas liberation holes capable of supplying a raw material gas radiately against each of the substrates. The gas feed pipes are longitudinally installed substantially at the center position of the discharge space.
摘要:
The light information device of the invention includes a semiconductor having a photoconductive effect or a photovoltaic effect. In the light information device, a photoconductivity and a dark conductivity of the semiconductor are varied by an aging process using an external stimulus, and the photoconductivity and the dark conductivity after the aging process have values which are equal to or lower than 20% of respective initial values thereof before the aging process.
摘要:
An apparatus for forming a deposited film comprises a deposition chamber holding a carrier therein, a halogen radical-introducing tube for introducing into said chamber a radical containing at least halogen atoms and a hydrogen radical-introducing tube for introducing into said chamber a radical containing hydrogen atoms, the halogen radical-introducing tube and the hydrogen radical-introducing tube each having an angle of 40.degree. to 50.degree. to the surface of said carrier, and a deposited film is formed on said carrier from said radicals.
摘要:
A multi-chip type image sensor includes, a base, a plurality of sensor chips arranged on the base so as to be staggered so that adjacent sensor chips among the sensor chips partially overlap with each other in the direction perpendicular to a direction in which the sensor chips are arranged. The sensor chips are fastened to the base by an adhesive for use in die bonding. Each of the sensor chips has a plurality of light receiving elements arranged into a line at a predetermined pixel pitch Pd. Each of the sensor chip contains silicon. Therminal pins are supported on the base and electrically coupled to the sensor chips. The following formula is satisfied:Pc=Pd.times.[1+(Tc-Ta) (.alpha..sub.B -.alpha..sub.Si)]where Tc [.degree.C.] is a curing temperature of the adhesive, Ta [.degree.C.] is an environment temperature at which the image sensor is to be used, .alpha..sub.Si is a thermal expansion coefficient of each of the sensor chips comprising silicon, .alpha..sub.B is a thermal expansion coefficient of the base, and Pc is a pixel pitch at which the light receiving elements are arranged in each of the sensor chips before the adhesive is cured by die bonding.
摘要:
A MIS structure is provided which uses a photoconductive amorphous silicon carbide layer as an insulator layer in the MIS structure. The insulator layer is disposed on an n-type layer of single crystal silicon carbide and a translucent metal layer is disposed thereon. The metal layer is biased with a negative voltage so that the capacitance between the metal layer and the semiconductor layer changes in response to whether on the metal layer is illuminated with light.
摘要:
A functional ZnSe.sub.1-x Te.sub.x :H film having a high doping efficiency and with no substantial change in the characteristics upon light irradiation. Said film is characterized in that the Se/Te quantitative ratio is in the range from 3:7 to 1:9 by the atom number ratio, hydrogen atoms are contained in an amount of 1 to 4 atomic % and the ratio of the crystal grain domains per unit volume is in the range from 65 to 85% by volume. There are also provided improved p-type and n-type ZnSe.sub.1-x Te.sub.x :H:M films (M stands for a dopant) of high electroconductivity characterized in the foregoing way.These deposited films may be efficiently deposited even on a non-single crystal substrate made of metal, glass or synthetic resin with a high deposition rate.These films are suited for the preparation of a high functional device such as a photovoltaic element.
摘要:
A photoconductive element is described, comprising an amorphous silicon sensor and a transparent, insulative protective layer on the sensor, said protective layer comprising polymers or copolymers (including terpolymers, etc.) having one of four specific types of recurring units, or mixtures thereof, or polymer compositions composed mainly of the above polymers or copolymers; such a photoconductive element shows reduced damage of the sensor as compared to the conventional technique, and permits increases in productivity and decreases in production costs.
摘要:
An infrared sensor includes a metal and a semiconductor contacted to each other via a rectifying potential barrier. The semiconductor includes a p-type strained Si.sub.1-X Ge.sub.X epitaxial layer grown on a p-type substrate, wherein the character X denotes a Ge atomic fraction and wherein X increases from zero to a predetermined upper limit in a direction away from the Si substrate toward the metal. The metal may be selected from the group of Pt, an alloy of Pt and Si, and an alloy of Pt, Si, and Ge. In addition, the metal may also be selected from the group of Ir, an alloy of Ir and Si, and an alloy of Ir, Si, and Ge.