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Class Information
Number: 438/223
Name: Semiconductor device manufacturing: process > Making field effect device having pair of active regions separated by gate structure by formation or alteration of semiconductive active regions > Having insulated gate (e.g., igfet, misfet, mosfet, etc.) > Complementary insulated gate field effect transistors (i.e., cmos) > Including isolation structure > Dielectric isolation formed by grooving and refilling with dielectric material > Having well structure of opposite conductivity type
Description: Process for making complementary insulated gate field effect transistors including a step of forming a well of opposite conductivity to the adjoining semiconductor region in which well is formed an insulated gate field effect transistor of opposite conductivity type to an insulated gate field effect transistor located in the adjoining semiconductor region.










Sub-classes under this class:

Class Number Class Name Patents
438/224 Plural wells 258


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8704229 Partial poly amorphization for channeling prevention Apr. 22, 2014
8686509 Semiconductor structure and method for manufacturing the same Apr. 1, 2014
8664723 Integrated circuit structures having base resistance tuning regions and methods for forming the same Mar. 4, 2014
8633071 Silicon device on Si: C-oi and Sgoi and method of manufacture Jan. 21, 2014
8592910 Semiconductor body with a protective structure and method for manufacturing the same Nov. 26, 2013
8536654 Structure and method for dual work function metal gate CMOS with selective capping Sep. 17, 2013
8507356 Formation of wells utilizing masks in manufacturing semiconductor device Aug. 13, 2013
8420518 Structure and method of latchup robustness with placement of through wafer via within CMOS circuitry Apr. 16, 2013
8377773 Transistors having a channel semiconductor alloy formed in an early process stage based on a hard mask Feb. 19, 2013
8320165 SRAM strap row substrate contact Nov. 27, 2012
8315086 SRAM strap row well contact Nov. 20, 2012
8310860 SRAM strap row double well contact Nov. 13, 2012
8243770 Quantum photonic imagers and methods of fabrication thereof Aug. 14, 2012
8232180 Manufacturing method of semiconductor device comprising active region divided by STI element isolation structure Jul. 31, 2012
8198155 Semiconductor device and method of manufacturing the same Jun. 12, 2012
8084319 Precisely tuning feature sizes on hard masks via plasma treatment Dec. 27, 2011
8080455 Method for fabricating semiconductor device with increased breakdown voltage Dec. 20, 2011
8053305 Method for producing semiconductor device Nov. 8, 2011
8049231 Quantum photonic imagers and methods of fabrication thereof Nov. 1, 2011
8049278 ESD protection for high voltage applications Nov. 1, 2011
8043909 Porous semiconductive film and process for its production Oct. 25, 2011
8017494 Termination trench structure for mosgated device and process for its manufacture Sep. 13, 2011
8012848 Trench isolation and method of fabricating trench isolation Sep. 6, 2011
7972918 Fabrication of semiconductor architecture having field-effect transistors especially suitable for analog applications Jul. 5, 2011
7943466 Method of forming a semiconductor device having sub-surface trench charge compensation regions May. 17, 2011
7919368 Area-efficient electrically erasable programmable memory cell Apr. 5, 2011
7915131 Semiconductor device and method for fabricating the same Mar. 29, 2011
7906389 Butted source contact and well strap Mar. 15, 2011
7868392 Integrated circuit tolerant to the locking phenomenon Jan. 11, 2011
7833857 ESD protecting circuit and manufacturing method thereof Nov. 16, 2010
7763946 Semiconductor device and method for manufacturing the same Jul. 27, 2010
7759204 Process for high voltage superjunction termination Jul. 20, 2010
7754593 Semiconductor device and manufacturing method therefor Jul. 13, 2010
7749833 Semiconductor MOS transistor device and method for making the same Jul. 6, 2010
7736962 Advanced JFET with reliable channel control and method of manufacture Jun. 15, 2010
7713809 Image sensor for reduced dark current May. 11, 2010
7645664 Layout pattern for deep well region to facilitate routing body-bias voltage Jan. 12, 2010
7612415 Method of forming semiconductor device Nov. 3, 2009
7589386 Semiconductor device and manufacturing method thereof Sep. 15, 2009
7575969 Buried layer and method Aug. 18, 2009
7562327 Mask layout design improvement in gate width direction Jul. 14, 2009
7547595 Integration scheme method and structure for transistors using strained silicon Jun. 16, 2009
7538396 Semiconductor device and complementary metal-oxide-semiconductor field effect transistor May. 26, 2009
7528026 Method for reducing silicide defects by removing contaminants prior to drain/source activation May. 5, 2009
7482218 Low-capacitance input/output and electrostatic discharge circuit for protecting an integrated circuit from electrostatic discharge Jan. 27, 2009
7449400 Method of forming an isolation film in a semiconductor device Nov. 11, 2008
7445979 Method of fabricating isolated semiconductor devices in epi-less substrate Nov. 4, 2008
7419863 Fabrication of semiconductor structure in which complementary field-effect transistors each have hypoabrupt body dopant distribution below at least one source/drain zone Sep. 2, 2008
7410855 Semiconductor device Aug. 12, 2008
7384829 Patterned strained semiconductor substrate and device Jun. 10, 2008

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