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Class Information
Number: 257/E29.169
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductors devices adapted for rectifying, amplifying, oscillating, or switching, capacitors, or resistors with at least one potential-jump barrier or surface barrier (epo) > Types of semiconductor device (epo) > Controllable by only signal applied to control electrode (e.g., base of bipolar transistor, gate of field-effect transistor) (epo)
Description: This subclass is indented under subclass E29.166 Subject matter wherein the device operation is regulated solely by an electrical signal input to one of its control electrodes. This subclass is substantially the same in scope as ECLA classification H01L29/68.

Sub-classes under this class:

Class Number Class Name Patents
257/E29.171 Bipolar device (epo) 23
257/E29.17 Memory effect devices (epo) 138
257/E29.226 Unipolar device (epo) 44

Patents under this class:

Patent Number Title Of Patent Date Issued
8642996 Graphene nanoribbons and carbon nanotubes fabricated from SiC fins or nanowire templates Feb. 4, 2014
8597968 Active device array substrate Dec. 3, 2013
8592860 Apparatus and method for protection of electronic circuits operating under high stress conditions Nov. 26, 2013
8344381 Flat display panel, UV sensor and fabrication method thereof Jan. 1, 2013
8129719 Semiconductor device and method for manufacturing the semiconductor device Mar. 6, 2012
7923730 Thin film transistor and semiconductor device Apr. 12, 2011
7888712 Semiconductor device and method for manufacturing same Feb. 15, 2011
7851256 Method of manufacturing chip-on-chip semiconductor device Dec. 14, 2010
7851854 SiC semiconductor device having bottom layer and method for manufacturing the same Dec. 14, 2010
7825449 Silicon carbide semiconductor device and related manufacturing method Nov. 2, 2010
7812376 Nanotube based nonvolatile memory device and a method of fabricating and operating the same Oct. 12, 2010
7790487 Method for fabricating photo sensor Sep. 7, 2010
7777222 Nanotube device structure and methods of fabrication Aug. 17, 2010
7701012 Complementary zener triggered bipolar ESD protection Apr. 20, 2010
7087968 Electrostatic discharge protection circuit and semiconductor circuit therewith Aug. 8, 2006
5162880 Nonvolatile memory cell having gate insulation film with carrier traps therein Nov. 10, 1992
5012304 Semiconductor devices having strain-induced lateral confinement of charge carriers Apr. 30, 1991
4630082 Semiconductor device with multi-electrode construction equivalent to variable capacitance diode Dec. 16, 1986
4558431 Memory system for storing analog information Dec. 10, 1985

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