Class 257/E27.122 - Including active semiconductor component sensitive to infrared radiation, light, or electromagnetic radiation of a shorter wavelength (EPO)

Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E27.001. This
No. of patents: 22
Last issue date: 06/03/2008

Number	Title	Issue Date
7382034	Optoelectronic component having a conductive contact structure The invention relates to an optoelectronic component for converting electromagnetic radiation into an intensity-dependent photoelectric current. The component includes one substrate which is formed especially according to CMOS technology. The substrate has an integr...	06/03/2008
7327004	Sensor device A sensor device includes a sensor chip having a movable portion on one surface, a circuit chip laminated with the sensor chip to be opposite to the movable portion of the sensor chip, and a bump located between the sensor chip and the circuit chip. In the sensor dev...	02/05/2008
7176545	Apparatus and methods for maskless pattern generation General purpose methods for the fabrication of integrated circuits from flexible membranes formed of very thin low stress dielectric materials, such as silicon dioxide or silicon nitride, and semiconductor layers. Semiconductor devices are formed in a semiconductor ...	02/13/2007
5165065	Optically pumped quantum coupled devices Optically pumped coupled quantum well devices are disclosed. The devices store bits as carrier packets in depressions in the conduction and/or valence band(s) of a single crystal; the band between the depressions is sloped in a common direction which prov...	11/17/1992
5162887	Buried junction photodiode A buried P-N junction photodiode is obtained in LinBiCMOS process with junctions formed between N+DUF diffused region and both first P-EPI layer and second P-EPI layer. Contact to N+DUF diffused region is made by a small area deep N+collector diffusion or...	11/10/1992
5054936	Sensor for active thermal detection A first heater is attached to a sensor capable of emitting thermal radiation toward an object to be sensed. Electrical energy provided to the heater, required to maintain the sensor at a predetermined temperature when it is radiating energy toward the obj...	10/08/1991
5028971	High power photoconductor bulk GaAs switch A photoconductive switch with a low threshold energy, high voltage capability and fast rise time consisting of a semiconductive substrate comprised primarily of gallium arsenide, patterned electrodes masked onto the substrate on opposite sides, a power su...	07/02/1991
5001532	Impurity band conduction detector having photoluminescent layer An impurity band conduction (IBC) infrared detector is provided with a photoluminescent (PL) layer proximate the blocking layer of the device. The PL layer comprises a narrow band-gap semiconductor material selected for generating long wavelength infrared...	03/19/1991
4878104	Optically pumped quantum coupled devices Optically pumped coupled quantum well devices are disclosed. The devices store bits as carrier packets in depressions in the conduction and/or valence band(s) of a single crystal; the band between the depressions is sloped in a common direction which prov...	10/31/1989
4763002	Photon detector A multilayered detector apparatus comprising: a first conductive layer: a photoconductive layer having two sides thick enough to obtain a desired level of sensitivity and resolution of the detector apparatus when the detector apparatus is exposed to radiation ...	08/09/1988
4734750	High electron mobility heterojunction semiconductor devices High electron mobility heterojunction semiconductor devices provided with a means to cause exposure of the electron source layer thereof to an electromagnetic wave allows modulation, adjustment and the like of the characteristics thereof even after comple...	03/29/1988
4576679	Method of fabricating a cold shield A shield for limiting the radiation received by individual detectors within a detector array of an electromagnetic radiation detection system to the radiation provided to the detectors by the optics of the system. The shield comprises a member of etchable...	03/18/1986
4539591	Method of impressing and reading out a surface charge on a multi-layered detector structure A method of recording and reading out a latent image which comprises placing a uniform surface charge on the photoconductive layer of a multilayered detector apparatus, biasing said photoconductive layer with an electric field whose polarity opposes said ...	09/03/1985
4521808	Electrostatic imaging apparatus An image scanning apparatus for obtaining radiographic information from a detector system. The apparatus produces a video signal by optical readout of a latent image found in a detector system. The video signal is processed and displayed to provide radiog...	06/04/1985
4446365	Electrostatic imaging method A method of operating a photodetector system. The method impresses a surface charge on a photon detector by establishing an electric potential across the detector, storing the detector in the dark, disconnecting the source of electric potential, and elect...	05/01/1984
4331873	Photocapacitive image converter Apparatus for converting a radiant energy image into corresponding electrical signals including an image converter. The image converter includes a substrate 20 of semiconductor material, an insulating layer 23 on the front surface of the substrate and an ...	05/25/1982
4268750	Realtime radiation exposure monitor and control apparatus An apparatus for measuring radiation exposure in realtime by measuring the charge flowing in an external circuit when radiation creates electron hole pairs, and thus allows discharge, of a duo-dielectric detector....	05/19/1981
4258254	Imaging devices and systems In order to improve the resolution and performance of an imaging device comprising an elongate strip of photconductive semiconductor material having first and second current electrodes and an associated read-out electrode the strip is modified so that gen...	03/24/1981
4129798	Piezo-resistive device for the electrical read-out of an optical image The device comprises a silicon substrate, means for generating a pulse elastic wave at the surface of the substrate on to which the image for read-out is projected, and elementary detectors detecting the conductivity of the substrate. Each of the detector...	12/12/1978
4084192	Electro-acoustic devices for analysing optical image A reading device for analysing an optical image in one dimension and for converting it into an electrical signal the amplitude of which characterizes the light intensity of the elemental zones analysed by a semiconductive substrate and scanned by the inte...	04/11/1978
4084189	Acoustro-electric scanner by phonon echo phenomenon A thin film optical scanner using phonon echoes. A piezoelectric (an insulator or a semiconductor) crystal has deposited thereon a photoconductor. An acoustic transducer propagates a broad strain wave pulse guided in or on the crystal. A relatively shorte...	04/11/1978
4028548	IR imaging with surface wave readout A device for IR imaging with surface wave readout wherein RF signals are d to interrogate a depletion depth pattern of a doped pyroelectric material, the depletion depth pattern being a function of the IR energy detected. The RF signals set up an acousti...	06/07/1977

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Class 257/E27.122 - Including active semiconductor component sensitive to infrared radiation, light, or electromagnetic radiation of a shorter wavelength (EPO)