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Class Information
Number: 438/278
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.) > Making plural insulated gate field effect transistors of differing electrical characteristics > Introducing a dopant into the channel region of selected transistors > After formation of source or drain regions and gate electrode (e.g., late programming, encoding, etc.)
Description: Process for making plural insulated gate field effect transistors of differing electrical characteristics wherein the semiconductor channel region is doped subsequent to the formation of the source and drain regions and the gate electrode.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8673759 Dry etch polysilicon removal for replacement gates Mar. 18, 2014
8653607 Method for 1/F noise reduction in NMOS devices Feb. 18, 2014
8643095 Semiconductor transistor device and method for manufacturing same Feb. 4, 2014
8633106 Heterojunction bipolar transistors and methods of manufacture Jan. 21, 2014
8598560 Resistive memory elements exhibiting increased interfacial adhesion strength, methods of forming the same, and related resistive memory cells and memory devices Dec. 3, 2013
8580637 Method of patterning a semiconductor device having improved spacing and shape control and a semiconductor device Nov. 12, 2013
8524559 Manufacturing method of power transistor device Sep. 3, 2013
8470676 Programmable element, and memory device or logic circuit Jun. 25, 2013
8324056 Vertical type semiconductor device and method of manufacturing a vertical type semiconductor device Dec. 4, 2012
8293606 Body tie test structure for accurate body effect measurement Oct. 23, 2012
8273621 MOS-FET having a channel connection, and method for the production of a MOS-FET having a channel connection Sep. 25, 2012
8173510 Lateral drain-extended MOSFET having channel along sidewall of drain extension dielectric May. 8, 2012
8097518 Semiconductor device and manufacturing method therefor Jan. 17, 2012
8093597 In situ dopant implantation and growth of a III-nitride semiconductor body Jan. 10, 2012
8084371 Field effect transistors, methods of fabricating a carbon-insulating layer using molecular beam epitaxy and methods of fabricating a field effect transistor Dec. 27, 2011
8063441 Vertical type semiconductor device Nov. 22, 2011
8053317 Method and structure for improving uniformity of passive devices in metal gate technology Nov. 8, 2011
8048747 Method of manufacturing embedded metal-oxide-nitride-oxide-silicon memory device Nov. 1, 2011
8048765 Method for fabricating a MOS transistor with source/well heterojunction and related structure Nov. 1, 2011
8021942 Method of forming CMOS device having gate insulation layers of different type and thickness Sep. 20, 2011
8008158 Dopant implantation method using multi-step implants Aug. 30, 2011
7964464 Semiconductor device and method of manufacturing the same Jun. 21, 2011
7888732 Lateral drain-extended MOSFET having channel along sidewall of drain extension dielectric Feb. 15, 2011
7868360 Semiconductor device with heat-resistant gate Jan. 11, 2011
7799645 Semiconductor device and method of manufacturing the same Sep. 21, 2010
7795097 Semiconductor device manufactured by removing sidewalls during replacement gate integration scheme Sep. 14, 2010
7759201 Method for fabricating pitch-doubling pillar structures Jul. 20, 2010
7713824 Small feature integrated circuit fabrication May. 11, 2010
7588987 Semiconductor device and method for fabricating the same Sep. 15, 2009
7573095 Memory cells with improved program/erase windows Aug. 11, 2009
7547941 NAND non-volatile two-bit memory and fabrication method Jun. 16, 2009
7504309 Pre-silicide spacer removal Mar. 17, 2009
7488653 Semiconductor device and method for implantation of doping agents in a channel Feb. 10, 2009
7442610 Low thermal budget fabrication method for a mask read only memory device Oct. 28, 2008
7396727 Transistor of semiconductor device and method for fabricating the same Jul. 8, 2008
7393737 Semiconductor device and a method of manufacturing the same Jul. 1, 2008
7371667 Semiconductor device and method of fabricating same May. 13, 2008
7364951 Nonvolatile semiconductor memory device and method for manufacturing the same Apr. 29, 2008
7364973 Method of manufacturing NOR-type mask ROM device and semiconductor device including the same Apr. 29, 2008
7344951 Surface preparation method for selective and non-selective epitaxial growth Mar. 18, 2008
7320917 Semiconductor device and method for manufacturing the same Jan. 22, 2008
7300842 Method of fabricating a mask ROM Nov. 27, 2007
7265012 Formation of standard voltage threshold and low voltage threshold MOSFET devices Sep. 4, 2007
7259070 Semiconductor devices and methods for fabricating the same Aug. 21, 2007
7253058 Method of manufacturing NOR-type mask ROM device and semiconductor device including the same Aug. 7, 2007
7244653 Method and structure in the manufacture of mask read only memory Jul. 17, 2007
7230877 Method of making a semiconductor memory device Jun. 12, 2007
7179712 Multibit ROM cell and method therefor Feb. 20, 2007
7169671 Method of recording information in nonvolatile semiconductor memory Jan. 30, 2007
7157336 Method of manufacturing semiconductor device Jan. 2, 2007

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