Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Physics
Class Information
Number: 257/E21.381
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 three or more electrodes (epo) > Transistor (epo) > Silicon vertical transistor (epo) > Where main current goes through whole of silicon substrate, e.g., power bipolar transistor (epo) > With a multi- emitter, e.g., interdigitated, multicellular, distributed (epo)
Description: This subclass is indented under subclass E21.38. This subclass is substantially the same in scope as ECLA classification H01L21/331F10E.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8603885 Flat response device structures for bipolar junction transistors Dec. 10, 2013
8597993 Electrostatic discharge (ESD) device and method of fabricating Dec. 3, 2013
RE44140 Bipolar method and structure having improved BVCEO/RCS trade-off made with depletable collector columns Apr. 9, 2013
8354733 IGBT power semiconductor package having a conductive clip Jan. 15, 2013
8283682 Light emitting diode Oct. 9, 2012
8097889 Light emitting device having light emitting elements with a shared electrode Jan. 17, 2012
8084774 Light emitting device having light emitting elements Dec. 27, 2011
RE43042 Bipolar method and structure having improved BVCEO/RCS trade-off made with depletable collector columns Dec. 27, 2011
7897982 Light emitting device having common N-electrode Mar. 1, 2011
7829358 System and method for emitter layer shaping Nov. 9, 2010
7768020 AC light emitting diode Aug. 3, 2010
7732825 AC light emitting diode Jun. 8, 2010
7667237 Light emitting device having light emitting elements Feb. 23, 2010
7646031 Light emitting device having light emitting elements Jan. 12, 2010
7615793 AC driven light--emitting device Nov. 10, 2009
7473983 Bipolar method and structure having improved BVCEO/RCS trade-off made with depletable collector columns Jan. 6, 2009
7285469 Bipolar method and structure having improved BVCEO/RCS trade-off made with depletable collector columns Oct. 23, 2007
6444547 Method for manufacturing semiconductor device Sep. 3, 2002
6297118 Vertical bipolar semiconductor power transistor with an interdigitzed geometry, with optimization of the base-to-emitter potential difference Oct. 2, 2001
6239475 Vertical bipolar transistor having a field shield between the metallic interconnecting layer and the insulation oxide May. 29, 2001
6077753 Method for manufacturing vertical bipolar transistor having a field shield between an interconnecting layer and the field oxide Jun. 20, 2000
6069399 Vertical bipolar semiconductor power transistor with an interdigitized geometry, with optimization of the base-to-emitter potential difference May. 30, 2000
6064109 Ballast resistance for producing varied emitter current flow along the emitter's injecting edge May. 16, 2000
5998855 Bipolar power transistor with buried base and interdigitated geometry Dec. 7, 1999
5965929 Bipolar Silicon transistor with arsenic and phosphorous ratio Oct. 12, 1999
5661079 Contacting process using O-SIPOS layer Aug. 26, 1997
5614758 Fully walled emitter-base in a bipolar transistor Mar. 25, 1997
5492844 Method of manufacturing increased conductivity base contact/feeders with self-aligned structures Feb. 20, 1996
5444292 Integrated thin film approach to achieve high ballast levels for overlay structures Aug. 22, 1995
5426059 Method of making vertically stacked bipolar semiconductor structure Jun. 20, 1995
5416354 Inverted epitaxial process semiconductor devices May. 16, 1995
5416032 Method of making a high conductivity p-plus region for self-aligned, shallow diffused, bipolar transistors May. 16, 1995
5405789 Method of manufacturing a semiconductor device whereby a laterally bounded semiconductor zone is formed in a semiconductor body in a self-aligning manner Apr. 11, 1995
5376563 Method of manufacturing an emitter base self alignment structure Dec. 27, 1994
5374844 Bipolar transistor structure using ballast resistor Dec. 20, 1994
5336631 Method of making and trimming ballast resistors and barrier metal in microwave power transistors Aug. 9, 1994
5328857 Method of forming a bilevel, self aligned, low base resistance semiconductor structure Jul. 12, 1994
5306649 Method for producing a fully walled emitter-base structure in a bipolar transistor Apr. 26, 1994
5229313 Method of making a semiconductor device having multilayer structure Jul. 20, 1993
5204735 High-frequency semiconductor device having emitter stabilizing resistor and method of manufacturing the same Apr. 20, 1993
5148252 Bipolar transistor Sep. 15, 1992
5111267 Semiconductor device having a multilayer electrode structure and method for fabricating the same May. 5, 1992
5100812 Method of manufacturing semiconductor device Mar. 31, 1992
5032887 Bipolar power semiconductor device and process for its manufacture Jul. 16, 1991
4860078 High-frequency transistor with low internal capacitance and low thermal resistance Aug. 22, 1989
4762804 Method of manufacturing a bipolar transistor having emitter series resistors Aug. 9, 1988
4725874 Semiconductor device having protected edges Feb. 16, 1988
4586968 Process of manufacturing a high frequency bipolar transistor utilizing doped silicide with self-aligned masking May. 6, 1986
4566176 Method of manufacturing transistors Jan. 28, 1986
4499657 Method of making a semiconductor device having protected edges Feb. 19, 1985

1 2










 
 
  Recently Added Patents
Halogen-free flame retardants for epoxy resin systems
Method and arrangement for controlling semiconductor component
Bioelectric battery for implantable device applications
Avalanche photodiodes having accurate and reproductible amplification layer
Method and apparatus for token-based context caching
Strap-hook ring
Charging current control method and charging system
  Randomly Featured Patents
Pillow and memorabilia trays for burial casket
Hydraulic pressure supply device for industrial vehicle
Polishing pad with optimized grooves and method of forming same
Liquid distribution unit and absorbent product having the same
Ultrasonic imaging device
Vehicle with space tradeable between rear seat and trunk
Oximeter ambient light cancellation
Flow-activated resistance heater for water
Folding table with latching linkage
Enhanced solenoid-armature interface