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Class Information
Number: 257/E21.352
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) > Diode (epo)
Description: This subclass is indented under subclass E21.351. This subclass is substantially the same in scope as ECLA classification H01L21/329B.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.355 Break-down diode, e.g., zener diode, avalanche diode (epo) 21
257/E21.362 Gat ed-diode structure, e.g., sith, fcth, fcd (epo) 35
257/E21.361 Multi-layer diode, e.g., pnpn or npnp diode (epo) 36
257/E21.36 Planar diode (epo) 15
257/E21.358 Rectifier diode (epo) 109
257/E21.359 Schottky diode (epo) 123
257/E21.354 Transit time diode, e.g., impatt, trapatt diode (epo) 2
257/E21.353 Tunnel diode (epo) 20


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8686515 Double-groove bidirectional vertical component Apr. 1, 2014
8664691 Silicon photomultiplier with trench isolation Mar. 4, 2014
8664741 High voltage resistor with pin diode isolation Mar. 4, 2014
8659162 Semiconductor device having an interconnect structure with TSV using encapsulant for structural support Feb. 25, 2014
8648360 Light-emitting diode structure Feb. 11, 2014
8637339 Diode energy converter for chemical kinetic electron energy transfer Jan. 28, 2014
8633521 Self-bootstrapping field effect diode structures and methods Jan. 21, 2014
8629467 Semiconductor device Jan. 14, 2014
8604529 Apparatus with photodiode region in multiple epitaxial layers Dec. 10, 2013
8597993 Electrostatic discharge (ESD) device and method of fabricating Dec. 3, 2013
8587041 Solid-state imaging device and method of manufacturing the same Nov. 19, 2013
8587004 Semiconductor light emitting device, its manufacturing method, semiconductor device and its manufacturing method Nov. 19, 2013
8581242 Apparatus combining bypass diode and wire Nov. 12, 2013
8546855 Charging protection device Oct. 1, 2013
8530953 Power MOS transistor device and switch apparatus comprising the same Sep. 10, 2013
8525302 Bipolar punch-through semiconductor device and method for manufacturing such a semiconductor device Sep. 3, 2013
8525304 Semiconductor device Sep. 3, 2013
8513680 Semiconductor package and method of manufacturing the same Aug. 20, 2013
8513083 Methods of forming an anode and a cathode of a substrate diode by performing angled ion implantation processes Aug. 20, 2013
8507328 Systems and methods providing semiconductor light emitters Aug. 13, 2013
8502291 Memory cells, memory cell constructions, and memory cell programming methods Aug. 6, 2013
8497536 Dual-facing camera assembly Jul. 30, 2013
8476719 Semiconductor device and method of manufacturing the same Jul. 2, 2013
8476645 LED thermal management Jul. 2, 2013
8476140 High-performance diode device structure and materials used for the same Jul. 2, 2013
8460958 Semiconductor light emitting device, its manufacturing method, semiconductor device and its manufacturing method Jun. 11, 2013
8455981 Doped graphene electronic materials Jun. 4, 2013
8445919 Wafer-level package structure of light emitting diode and manufacturing method thereof May. 21, 2013
8441027 Light emitting device and light emitting device package May. 14, 2013
8441092 Thermoelectric cooler system, method and device May. 14, 2013
8435853 Method for forming a semiconductor device, and a semiconductor with an integrated poly-diode May. 7, 2013
8431492 Memory cell that includes a sidewall collar for pillar isolation and methods of forming the same Apr. 30, 2013
8426320 Method of formation of coherent wavy nanostructures (variants) Apr. 23, 2013
8420439 Method of producing a radiation-emitting thin film component and radiation-emitting thin film component Apr. 16, 2013
8421089 Light emitting device Apr. 16, 2013
8415684 LED device with improved thermal performance Apr. 9, 2013
8405095 Light-emitting device and method for manufacturing the same Mar. 26, 2013
8395144 Anthracene derivatives and organic electroluminescent device using same Mar. 12, 2013
8395244 Fast recovery diode Mar. 12, 2013
8390090 Semiconductor device and method of manufacturing the same Mar. 5, 2013
8354323 Doped graphene electronic materials Jan. 15, 2013
8354693 Solid state imaging device and method for fabricating the same Jan. 15, 2013
8344395 Light-emitting diode and manufacturing method thereof Jan. 1, 2013
8338263 Etching narrow, tall dielectric isolation structures from a dielectric layer Dec. 25, 2012
8324633 Ultra high thermal performance packaging for optoelectronics devices Dec. 4, 2012
8304816 Image sensor capable of increasing photosensitivity Nov. 6, 2012
8294182 Light emitting device Oct. 23, 2012
8294210 High voltage channel diode Oct. 23, 2012
8274136 Semiconductor patch antenna Sep. 25, 2012
8269317 Phosphorescent materials Sep. 18, 2012

1 2 3 4










 
 
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