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Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 250: Radiant Energy

This class provides for all methods and apparatus for using, generating, controlling or detecting radiant energy, combinations including such methods or apparatus, subcombinations of same and accessories therefore not classifiable elsewhere.

Subclass 208.1: Plural photosensitive image detecting element arrays
Subclass 214R: Special photocell or electron tube circuits
Subclass 214.1: Special photocell

Class 257: Active Solid-State Devices (E.G., Transistors, Solid-State Diodes)

This class provides for active solid-state electronic devices, that is, electronic devices or components that are made up primarily of solid materials, usually semiconductors, which operate by the movement of charge carriers - electrons or holes - which undergo energy level changes within the material and can modify an input voltage to achieve rectification, amplification, or switching action, and are not classified elsewhere.

Subclass 19: Si x Ge 1-x
Subclass 20: Field effect device
Subclass 22: With specified semiconductor materials
Subclass 24: Field effect device
Subclass 27: Field effect transistor
Subclass 186: Avalanche photodetection structure
Subclass 199: Avalanche diode (e.g., so-called Zener diode having breakdown voltage greater than 6 volts, including heterojunction IMPATT type microwave diodes)
Subclass 438: Avalanche junction
Subclass 446: With specific isolation means in integrated circuit
Subclass 458: PIN detector, including combinations with non-light responsive active devices
Subclass 461: Light responsive pn junction
Subclass 484: Guard ring
Subclass 604: Microwave transit time device (e.g., IMPATT diode)
Subclass E31.011: Including, apart from doping material or other impurity, only Group IV element (EPO)
Subclass E31.035: Including, apart from doping material or other impurity, only Group IV element or compound (e.g., Si-SiGe superlattice) (EPO)
Subclass E31.038: Shape of body (EPO)
Subclass E31.061: PIN potential barrier (EPO)
Subclass E31.063: Potential barrier working in avalanche mode (e.g., avalanche photodiode) (EPO)
Subclass E31.064: Heterostructure (e.g., surface absorption or multiplication (SAM) layer) (EPO)
Subclass E27.128: With at least one potential barrier or surface barrier (EPO)
Subclass E27.131: Geometry or disposition of pixel-elements, address-lines, or gate-electrodes (EPO)
Subclass E27.132: Pixel-elements with integrated switching, control, storage, or amplification elements (EPO)
Subclass E27.133: Photodiode array or MOS imager (EPO)
Subclass E29.334: Transit-time diode (e.g., IMPATT, TRAPATT diode) (EPO)

Class 438: Semiconductor Device Manufacturing: Process

This class provides for manufacturing a semiconductor containing a solid-state device for the following purposes: (a) conducting or modifying an electrical current, (b) storing electrical energy for subsequent discharge within a microelectronic integrated circuit, or (c) converting electromagnetic wave energy to electrical energy or electrical energy to electromagnetic energy. Also operations involving: (1) coating a substrate with a semiconductive material, or (2) coating a semiconductive substrate or substrate containing a semiconductive region. It also provides for operations involving etching a semiconductive substrate or etching a substrate containing a semiconductive region. The class provides for packaging or treatment of packaged semiconductor.

Subclass 199: Complementary insulated gate field effect transistors (i.e., CMOS)
Subclass 91: Avalanche diode

Class 385: Optical Waveguides

(1) An optical waveguiding element, which conveys light from one point to another through an optically transparent elongated structure by modal transmission, total internal reflection, or total reflectorization. (2) A combination of an optical waveguiding element with an additional broadly recited optical element which couples light or a combination. (3) A combination of an optical waveguiding element with structure which mechanically joins this waveguiding element with another or with a diverse optical element. (4) An optical modulator where the modulation of a light wave characteristic is performed exclusively within an optical waveguiding element. (5) Other miscellaneous devices formed of an optical waveguide (e.g., a waveguide sensing device) and supplemental devices which are limited to use with an optical waveguide (e.g., an external clamp or retainer).

Subclass 131: Multilayer structure (mixture)
Subclass 39: Particular coupling structure