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Class Information
Number: 257/E21.351
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Multi-step process for manufacture of device of bipolar type, e.g., diodes, transistors, thyristors, resistors, capacitors) (epo) > Device comprising one or two electrodes, e.g., diode, resistor or capacitor with pn or schottky junctions (epo)
Description: This subclass is indented under subclass E21.35. This subclass is substantially the same in scope as ECLA classification H01L21/329.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.365 Active layer is group iii-v compound (epo) 16
257/E21.364 Capacitor with pn - or schottky junction, e.g., varactor (epo) 51
257/E21.352 Diode (epo) 187
257/E21.363 Resistor with pn junction (epo) 44


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8703573 Semiconductor device and method of manufacturing the same Apr. 22, 2014
8669623 Structure related to a thick bottom dielectric (TBD) for trench-gate devices Mar. 11, 2014
8587094 Semiconductor device using a compound semiconductor subtrate Nov. 19, 2013
8569819 Doped electrodes for DRAM applications Oct. 29, 2013
8563388 Method for producing a plurality of integrated semiconductor components Oct. 22, 2013
8530953 Power MOS transistor device and switch apparatus comprising the same Sep. 10, 2013
8507978 Split-gate structure in trench-based silicon carbide power device Aug. 13, 2013
8497154 Solar cell system manufacturing method Jul. 30, 2013
8492254 Method of manufacturing semiconductor devices Jul. 23, 2013
8492255 Trenched Schottky diode and method of forming a trenched Schottky diode Jul. 23, 2013
8486780 Doped electrode for dram applications Jul. 16, 2013
8476672 Electrostatic discharge protection device and method for fabricating the same Jul. 2, 2013
8435873 Unguarded Schottky barrier diodes with dielectric underetch at silicide interface May. 7, 2013
8410534 Integrated circuit structures with silicon germanium film incorporated as local interconnect and/or contact Apr. 2, 2013
8399948 Light emitting device, light emitting device package and lighting system Mar. 19, 2013
8395200 Method and system for manufacturing copper-based capacitor Mar. 12, 2013
8314474 Under bump metallization for on-die capacitor Nov. 20, 2012
8129772 Integrated circuit structures with silicon germanium film incorporated as local interconnect and/or contact Mar. 6, 2012
8129814 Schottky diode with silicide anode and anode-encircling P-type doped region Mar. 6, 2012
8076195 Resistive memory architectures with multiple memory cells per access device Dec. 13, 2011
8067277 Active matrix device with photo sensor Nov. 29, 2011
8039328 Trench Schottky device with single barrier Oct. 18, 2011
7999345 Semiconductor device and manufacturing method thereof Aug. 16, 2011
7989244 Method of manufacturing nitride-based semiconductor light-emitting device Aug. 2, 2011
7985615 Method of forming a carbon nanotube/nanowire thermo-photovoltaic cell Jul. 26, 2011
7982239 Power switching transistors Jul. 19, 2011
7943472 CoSi2 Schottky diode integration in BiSMOS process May. 17, 2011
7939415 Method for forming a substrate contact for advanced SOI devices based on a deep trench capacitor configuration May. 10, 2011
RE42283 LCD and method of improving the brilliance of the same Apr. 12, 2011
7915658 Semiconductor on insulator (SOI) device including a discharge path for a decoupling capacitor Mar. 29, 2011
7888229 Method for manufacturing an energy storage device Feb. 15, 2011
7875525 Method of manufacturing stack-type capacitor and semiconductor memory device having the stack-type capacitor Jan. 25, 2011
7863172 Gallium nitride semiconductor device Jan. 4, 2011
7838349 Semiconductor device and method of manufacturing the same Nov. 23, 2010
7799626 Lateral DMOS device structure and fabrication method therefor Sep. 21, 2010
7777292 Semiconductor device Aug. 17, 2010
7736985 Method for manufacturing semiconductor device using overlapping exposure and semiconductor device thereof Jun. 15, 2010
7732869 Insulated-gate semiconductor device Jun. 8, 2010
7723132 Semiconductor laser and the method for manufacturing the same May. 25, 2010
7718503 SOI device and method for its fabrication May. 18, 2010
7633131 MEMS semiconductor sensor device Dec. 15, 2009
7625775 Multiple function thin-film resistor-capacitor array Dec. 1, 2009
7611956 Semiconductor device having MOS varactor and methods for fabricating the same Nov. 3, 2009
7588958 Schottky barrier diode and manufacturing method thereof Sep. 15, 2009
7547939 Semiconductor device and circuit having multiple voltage controlled capacitors Jun. 16, 2009
7514762 Active matrix pixel device with photo sensor Apr. 7, 2009
7432123 Methods of manufacturing high temperature thermistors Oct. 7, 2008
7419868 Gated diode nonvolatile memory process Sep. 2, 2008
7405457 High temperature thermistors Jul. 29, 2008
7368760 Low parasitic capacitance Schottky diode May. 6, 2008

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