Resources Contact Us Home
Browse by Category: Main > Physics
Class Information
Number: 257/E21.144
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) > Diffusion of impurity material, e.g., doping material, electrode material, into or out of a semiconductor body, or between semiconductor regions; interactions between two or more impurities; redistribution of impurities (epo) > Using diffusion into or out of a s olid from or into a solid phase, e.g., a doped oxide layer (epo)
Description: This subclass is indented under subclass E21.135. This subclass is substantially the same in scope as ECLA classification H01L21/225.

Sub-classes under this class:

Class Number Class Name Patents
257/E21.152 Diffusion into or out of group iii-v compound (epo) 66
257/E21.145 Diffusion into or out of group iv semiconductor (epo) 25

Patents under this class:

Patent Number Title Of Patent Date Issued
8703593 Techniques for FinFET doping Apr. 22, 2014
8536003 Method for fabricating semiconductor power device Sep. 17, 2013
8536004 Method for fabricating semiconductor power device Sep. 17, 2013
8440552 Method to form low series resistance transistor devices on silicon on insulator layer May. 14, 2013
8415239 Method for manufacturing a power semiconductor device Apr. 9, 2013
8394710 Semiconductor devices fabricated by doped material layer as dopant source Mar. 12, 2013
8367533 Semiconductor devices including doped metal silicide patterns and related methods of forming such devices Feb. 5, 2013
8309446 Hybrid heterojunction solar cell fabrication using a doping layer mask Nov. 13, 2012
8236675 Semiconductor device and method of fabricating a semiconductor device Aug. 7, 2012
8222131 Methods of forming an image sensor Jul. 17, 2012
8216940 Method for manufacturing a semiconductor device Jul. 10, 2012
8163639 Photo diode and method for manufacturing the same Apr. 24, 2012
8035196 Methods of counter-doping collector regions in bipolar transistors Oct. 11, 2011
7989293 Trench device structure and fabrication Aug. 2, 2011
7892976 Semiconductor device and method for manufacturing the same Feb. 22, 2011
7846823 Masking paste, method of manufacturing same, and method of manufacturing solar cell using masking paste Dec. 7, 2010
7781288 Semiconductor structure including gate electrode having laterally variable work function Aug. 24, 2010
7449361 Semiconductor substrate with islands of diamond and resulting devices Nov. 11, 2008
7439609 Doping of gallium nitride by solid source diffusion and resulting gallium nitride structures Oct. 21, 2008
7326631 Method of manufacturing MOS transistors with gate electrodes formed in a packet of metal layers deposited upon one another Feb. 5, 2008
7303967 Method for fabricating transistor of semiconductor device Dec. 4, 2007
7282428 Method for solid phase diffusion of zinc into an InP-based photodiode and an InP photodiode made with the method Oct. 16, 2007
6916730 Method for forming a gate Jul. 12, 2005
6531379 High resolution dopant/impurity incorporation in semiconductors via a scanned atomic force probe Mar. 11, 2003
6251755 High resolution dopant/impurity incorporation in semiconductors via a scanned atomic force probe Jun. 26, 2001
4907059 Semiconductor bipolar-CMOS inverter Mar. 6, 1990
4757027 Method for fabricating improved oxide defined transistors Jul. 12, 1988
4720308 Method for producing high-aspect ratio hollow diffused regions in a semiconductor body and diode produced thereby Jan. 19, 1988
4712125 Structure for contacting a narrow width PN junction region Dec. 8, 1987
4692348 Low temperature shallow doping technique Sep. 8, 1987
4676847 Controlled boron doping of silicon Jun. 30, 1987
4626293 Method of making a high voltage DMOS transistor Dec. 2, 1986
4619719 Process for forming a doped oxide film and composite article Oct. 28, 1986
4605450 Process for forming a doped oxide film and doped semiconductor Aug. 12, 1986
4578283 Polymeric boron nitrogen dopant Mar. 25, 1986
4529456 Method of forming bifets by forming isolation regions connected by diffusion in semiconductor substrate and epitaxial layer Jul. 16, 1985
4485552 Complementary transistor structure and method for manufacture Dec. 4, 1984
4472212 Method for fabricating a semiconductor device Sep. 18, 1984
4471524 Method for manufacturing an insulated gate field effect transistor device Sep. 18, 1984
4435225 Method of forming self-aligned lateral bipolar transistor Mar. 6, 1984
4050966 Method for the preparation of diffused silicon semiconductor components Sep. 27, 1977

  Recently Added Patents
Mobile computing terminal
System and method for displaying a constant time selection context menu interface
Method, apparatus, and system for energy efficiency and energy conservation including dynamic cache sizing and cache operating voltage management for optimal power performance
Maintenance guidance display device, maintenance guidance display method, and maintenance guidance display program
Case for electronic device
Polymer bonded fibrous coating on dipped rubber articles skin contacting external surface
  Randomly Featured Patents
Franking machine with a clamping device for an item of mail
Proton-translocating retinal protein
XOR encoded document for secure message exchange
Electro-mechanical impact detecting device for vehicles
In-ear monitor with concentric sound bore configuration
Convertible vehicle
Method for processing digitized ultrasonic signals originating from an ultrasonic probe for the storage of and later reconstruction of the ultrasonic signals from the stored data
Suction unit
Hydrogenated naphthalenes and related LTB.sub.4 antagonists
Optical wavefront sensing system