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Class Information
Number: 438/141
Name: Semiconductor device manufacturing: process > Making conductivity modulation device (e.g., unijunction transistor, double base diode, conductivity-modulated transistor, etc.)
Description: Process for making a conductivity modulation device structure which has a high resistivity semiconductor region of one conductivity-type having a region of opposite conductivity-type forming a pn junction with a central portion of the high resistivity region, with structural means provided to forward bias the pn junction to inject minority carriers into the high resistivity region to vary its conductivity producing modulated wave response (i.e., conductivity modulation).

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8673700 Superjunction structures for power devices and methods of manufacture Mar. 18, 2014
8609475 Methods for forming nickel oxide films for use with resistive switching memory devices/US Dec. 17, 2013
8575012 Semiconductor device production method and semiconductor device Nov. 5, 2013
8557654 Punch-through diode Oct. 15, 2013
8536607 Manufacturing method of LED base plate, LED base plate and white light LED structure Sep. 17, 2013
8518754 Organic EL display and method of manufacturing the same Aug. 27, 2013
8507328 Systems and methods providing semiconductor light emitters Aug. 13, 2013
8476085 Method of fabricating dual trench isolated epitaxial diode array Jul. 2, 2013
8445319 Nonvolatile memory element, manufacturing method thereof, and nonvolatile semiconductor apparatus using the nonvolatile memory element May. 21, 2013
8424190 Method of providing electrostatic discharge protection for a read element in a magnetic storage system Apr. 23, 2013
8395568 Light emitting, photovoltaic or other electronic apparatus and system Mar. 12, 2013
8384630 Light emitting, photovoltaic or other electronic apparatus and system Feb. 26, 2013
8372698 Semiconductor device having a modified recess channel gate and a method for fabricating the same Feb. 12, 2013
8372697 Digital oxide deposition of SiO.sub.2 layers on wafers Feb. 12, 2013
8298875 Method for fabrication of a semiconductor device and structure Oct. 30, 2012
8283214 Methods for forming nickel oxide films for use with resistive switching memory devices Oct. 9, 2012
8252610 Method of manufacturing light emitting diode Aug. 28, 2012
8237192 Light emitting diode chip with overvoltage protection Aug. 7, 2012
8232579 Semiconductor device and method for producing a semiconductor device Jul. 31, 2012
8222587 Image sensor and method for manufacturing the same Jul. 17, 2012
8143112 Method for removing semiconductor street material Mar. 27, 2012
8133768 Method of manufacturing a light emitting, photovoltaic or other electronic apparatus and system Mar. 13, 2012
8093621 VTS insulated gate bipolar transistor Jan. 10, 2012
8084304 Method for preventing gate oxide damage of a trench MOSFET during wafer processing while adding an ESD protection module atop Dec. 27, 2011
8075325 Self-cleaning electrical connection assembly Dec. 13, 2011
8058111 Integrated circuit arrangement comprising a pin diode, and production method Nov. 15, 2011
8053808 Layouts for multiple-stage ESD protection circuits for integrating with semiconductor power device Nov. 8, 2011
8048753 Charging protection device Nov. 1, 2011
8039324 Image sensor and method of fabricating the same Oct. 18, 2011
8022412 Epitaxial structure having low defect density Sep. 20, 2011
7999285 Insulated gate bipolar transistor and method for manufacturing the same Aug. 16, 2011
7985615 Method of forming a carbon nanotube/nanowire thermo-photovoltaic cell Jul. 26, 2011
7977178 Asymmetric source/drain junctions for low power silicon on insulator devices Jul. 12, 2011
7977705 Low-cost substrates having high-resistivity properties and methods for their manufacture Jul. 12, 2011
7939414 Ion implantation and process sequence to form smaller base pick-up May. 10, 2011
7928438 Semiconductor thin film and semiconductor device Apr. 19, 2011
7919776 High frequency diode and method for producing same Apr. 5, 2011
7915097 Electronic module with conductivity transformation region, method of manufacture and applications thereof Mar. 29, 2011
7910407 Quad memory cell and method of making same Mar. 22, 2011
7910983 MOS transistor having an increased gate-drain capacitance Mar. 22, 2011
7902569 Si/SiGe interband tunneling diodes with tensile strain Mar. 8, 2011
7893434 High frequency diode and method for producing same Feb. 22, 2011
7846785 Memory cell that employs a selectively deposited reversible resistance-switching element and methods of forming the same Dec. 7, 2010
7824619 Molecular sensors for explosives Nov. 2, 2010
7781277 Selective uniaxial stress relaxation by layout optimization in strained silicon on insulator integrated circuit Aug. 24, 2010
7772592 Semiconductor thin film and semiconductor device Aug. 10, 2010
7750709 Method and apparatus for biasing a floating node in an integrated circuit Jul. 6, 2010
7739636 Design structure incorporating semiconductor device structures that shield a bond pad from electrical noise Jun. 15, 2010
7687322 Method for removing semiconductor street material Mar. 30, 2010
7687323 Surface-roughening method Mar. 30, 2010

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