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Class Information
Number: 257/E31.056
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductor devices responsive or sensitive to electromagnetic radiation (e.g., infrared radiation, adapted for conversion of radiation into electrical energy or for control of electrical energy by such radiation processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof) (epo) > Adapted to control current flow through device (e.g., photoresistor) (epo) > For device having potential or surface barrier (e.g., phototransistor) (epo) > Device sensitive to infrared, visible, or ultraviolet radiation (epo) > Characterized by only one potential or surface barrier (epo) > Potential barrier being of point contact type (epo)
Description: This subclass is indented under subclass E31.055. This subclass is substantially the same in scope as ECLA classification H01L31/102B.

Patents under this class:

Patent Number Title Of Patent Date Issued
8269297 Photodiode isolation in a photonic integrated circuit Sep. 18, 2012
8173459 Light emitting device having isolating insulative layer for isolating light emitting cells from each other and method of fabricating the same May. 8, 2012
5989947 Method for the manufacture of quantum structures, in particular quantum dots and tunnel barriers as well as components with such quantum structures Nov. 23, 1999

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