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Class 257/E31.072 - Static induction type (i.e., SIT device) (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E31.071. This subclass
No. of patents: 8
Last issue date: 10/21/2008


NumberTitleIssue Date
7439563High-breakdown-voltage semiconductor device
A high-breakdown-voltage semiconductor device comprises a high-resistance semiconductor layer, trenches formed on the surface thereof in a longitudinal plane shape and in parallel, first regions formed on the semiconductor layer to be sandwiched between adjacent one...
10/21/2008
7385231Porous thin-film-deposition substrate, electron emitting element, methods of producing them, and switching element and display element
A method of producing a porous thin-film-deposition substrate, which has the steps of: placing onto a substrate that has an electrostatic charge on its surface, fine particles with a surface electrostatic charge opposite to the electrostatic charge of the substrate ...
06/10/2008
7132677Super bright light emitting diode of nanorod array structure having InGaN quantum well and method for manufacturing the same
An GaN light emitting diode (LED) having a nanorod (or, nanowire) structure is disclosed. The GaN LED employs GaN nanorods in which a n-type GaN nanorod, an InGaN quantum well and a p-type GaN nanorod are subsequently formed in a longitudinal direction by inserting ...
11/07/2006
5258670Light triggered & quenched static induction thyristor circuit
A LTQ (light triggered & quenched) static induction thyristor circuit of the present invention is to provide a LTQ static induction thyristor circuit obtaining an excellent dv/dt capability and operating ambient temperature characteristics, a large optica...
11/02/1993
4975755Optically controllable static induction thyristor device
A semiconductor device comprises a static induction thyristor and a photosensitive element connected to a gate of the static induction thyristor so that the static induction thyristor is controlled optically. A plurality of the semiconductor devices are e...
12/04/1990
4914043Method of making an integrated light-triggered and light-quenched static induction thyristor
An integrated light-triggered and light-quenched static induction thyristor and fabrication process thereof adapted in such a manner that an integrated SIPT operates in the normal mode in order to enhance current gain, tail current generated at the light-...
04/03/1990
4866500Integrated light-triggered and light-quenched static induction thyristor and making method thereof
An integrated light-triggered and light-quenched static induction thyristor and fabrication process thereof adapted in such a manner that an integrated SIPT operates in the normal mode in order to enhance current gain, tail current generated at the light-...
09/12/1989
4816891Optically controllable static induction thyristor device
A semiconductor device comprises a static induction thyristor and a photosensitive element connected to a gate of the static induction thyristor so that the static induction thyristor is controlled optically. A plurality of the semiconductor devices are e...
03/28/1989
 
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