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Class Information
Number: 438/227
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 > Recessed oxide formed by localized oxidation (i.e., locos) > 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 regions 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
438/228 Plural wells 345


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8658503 Semiconductor device and method of fabricating the same Feb. 25, 2014
8633071 Silicon device on Si: C-oi and Sgoi and method of manufacture Jan. 21, 2014
8574973 Method of fabricating a lateral double-diffused MOSFET (LDMOS) transistor and a conventional CMOS transistor Nov. 5, 2013
8507356 Formation of wells utilizing masks in manufacturing semiconductor device Aug. 13, 2013
8501567 Manufacturing method of high voltage device Aug. 6, 2013
8410568 Integrated photodiode for semiconductor substrates Apr. 2, 2013
8405148 Method of fabricating a lateral double-diffused MOSFET (LDMOS) transistor and a conventional CMOS transistor Mar. 26, 2013
8325516 Semiconductor device with split gate memory cell and fabrication method thereof Dec. 4, 2012
8202775 Process of forming an electronic device including a trench and a conductive structure therein Jun. 19, 2012
8124468 Process of forming an electronic device including a well region Feb. 28, 2012
8076716 Electronic device including a trench and a conductive structure therein Dec. 13, 2011
8071436 Method of fabricating a semiconductor device having a lateral double diffused MOSFET transistor with a lightly doped source and CMOS transistor Dec. 6, 2011
8049231 Quantum photonic imagers and methods of fabrication thereof Nov. 1, 2011
7981739 Method of fabricating a lateral double-diffused MOSFET (LDMOS) transistor and a conventional CMOS transistor Jul. 19, 2011
7972917 Method for manufacturing semiconductor device and semiconductor device Jul. 5, 2011
7968393 Semiconductor device, design method and structure Jun. 28, 2011
7902017 Process of forming an electronic device including a trench and a conductive structure therein Mar. 8, 2011
7902020 Semiconductor device and method of manufacturing the same Mar. 8, 2011
7868379 Electronic device including a trench and a conductive structure therein Jan. 11, 2011
7813711 Stacking baseband circuits using deep n-well and increased supply voltage Oct. 12, 2010
7754593 Semiconductor device and manufacturing method therefor Jul. 13, 2010
7709365 CMOS well structure and method of forming the same May. 4, 2010
7691700 Multi-stage implant to improve device characteristics Apr. 6, 2010
7682895 Semiconductor device and method of manufacturing the same Mar. 23, 2010
7666731 Method of fabricating a lateral double-diffused MOSFET (LDMOS) transistor and a conventional CMOS transistor Feb. 23, 2010
7645664 Layout pattern for deep well region to facilitate routing body-bias voltage Jan. 12, 2010
7632732 Method of manufacturing MOS transistor Dec. 15, 2009
7550344 Semiconductor device and method for fabricating the same Jun. 23, 2009
7482218 Low-capacitance input/output and electrostatic discharge circuit for protecting an integrated circuit from electrostatic discharge Jan. 27, 2009
7482220 Semiconductor device having deep trench charge compensation regions and method Jan. 27, 2009
7410855 Semiconductor device Aug. 12, 2008
7364959 Method for manufacturing a MOS transistor Apr. 29, 2008
7351627 Method of manufacturing semiconductor device using gate-through ion implantation Apr. 1, 2008
7336530 CMOS pixel with dual gate PMOS Feb. 26, 2008
7309636 High-voltage metal-oxide-semiconductor device and method of manufacturing the same Dec. 18, 2007
7279378 Method of fabricating isolated semiconductor devices in epi-less substrate Oct. 9, 2007
7247534 Silicon device on Si:C-OI and SGOI and method of manufacture Jul. 24, 2007
7221591 Fabricating bi-directional nonvolatile memory cells May. 22, 2007
7163856 Method of fabricating a lateral double-diffused mosfet (LDMOS) transistor and a conventional CMOS transistor Jan. 16, 2007
7145187 Substrate independent multiple input bi-directional ESD protection structure Dec. 5, 2006
7132323 CMOS well structure and method of forming the same Nov. 7, 2006
7005340 Method for manufacturing semiconductor device Feb. 28, 2006
6984855 Manufacturing method of semiconductor device and semiconductor device Jan. 10, 2006
6982196 Oxidation method for altering a film structure and CMOS transistor structure formed therewith Jan. 3, 2006
6977195 Test structure for characterizing junction leakage current Dec. 20, 2005
6929992 Strained silicon MOSFETs having NMOS gates with work functions for compensating NMOS threshold voltage shift Aug. 16, 2005
6921701 Method of manufacturing and structure of semiconductor device (DEMOS) with field oxide structure Jul. 26, 2005
6913962 Manufacturing method of semiconductor device and semiconductor device Jul. 5, 2005
6911694 Semiconductor device and method for fabricating such device Jun. 28, 2005
6900101 LDMOS transistors and methods for making the same May. 31, 2005

1 2 3 4 5 6










 
 
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