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Class Information
Number: 438/277
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 > Including forming overlapping gate electrodes
Description: Process for making plural insulated gate field effect transistors of differing electrical characteristics including a step of forming overlapping gate electrodes.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8652909 Methods of forming a nonvolatile memory cell and methods of forming an array of nonvolatile memory cells array of nonvolatile memory cells Feb. 18, 2014
8431458 Methods of forming a nonvolatile memory cell and methods of forming an array of nonvolatile memory cells Apr. 30, 2013
8324056 Vertical type semiconductor device and method of manufacturing a vertical type semiconductor device Dec. 4, 2012
8304300 Method of manufacturing display device including transistor Nov. 6, 2012
8148226 Method of fabricating semiconductor device Apr. 3, 2012
8110467 Multiple Vt field-effect transistor devices Feb. 7, 2012
8071445 Method for manufacturing semiconductor device, and semiconductor device Dec. 6, 2011
8063441 Vertical type semiconductor device Nov. 22, 2011
7943453 CMOS devices with different metals in gate electrodes using spin on low-k material as hard mask May. 17, 2011
7932152 Method of forming a gate stack structure Apr. 26, 2011
7915128 High voltage semiconductor devices Mar. 29, 2011
7863139 Double gate FET and fabrication process Jan. 4, 2011
7741223 Semiconductor device with bulb type recess gate and method for fabricating the same Jun. 22, 2010
7595262 Manufacturing method for an integrated semiconductor structure Sep. 29, 2009
7582532 Method for fabricating semiconductor device Sep. 1, 2009
7537994 Methods of forming semiconductor devices, assemblies and constructions May. 26, 2009
7504293 Fabrication method for semiconductor device Mar. 17, 2009
7425744 Fabricating logic and memory elements using multiple gate layers Sep. 16, 2008
7238579 Semiconductor device for reducing photovolatic current Jul. 3, 2007
7230877 Method of making a semiconductor memory device Jun. 12, 2007
7064034 Technique for fabricating logic elements using multiple gate layers Jun. 20, 2006
6713354 Coding method for mask ROM Mar. 30, 2004
6713821 Structure of a mask ROM device Mar. 30, 2004
6670247 Method of fabricating mask read only memory Dec. 30, 2003
6667214 Non-volatile semiconductor memory devices and methods for manufacturing the same Dec. 23, 2003
6664164 UV-programmed P-type Mask ROM and fabrication thereof Dec. 16, 2003
6635536 Method for manufacturing semiconductor memory device Oct. 21, 2003
6573144 Method for manufacturing a semiconductor device having lateral MOSFET (LDMOS) Jun. 3, 2003
6468869 Method of fabricating mask read only memory Oct. 22, 2002
6355530 Method of manufacturing a mask ROM bit line Mar. 12, 2002
6326664 Transistor with ultra shallow tip and method of fabrication Dec. 4, 2001
6274896 Drive transistor with fold gate Aug. 14, 2001
6258672 Method of fabricating an ESD protection device Jul. 10, 2001
6200843 High-voltage, high performance FETs Mar. 13, 2001
6190974 Method of fabricating a mask ROM Feb. 20, 2001
6093604 Method of manufacturing a flash memory device Jul. 25, 2000
5976937 Transistor having ultrashallow source and drain junctions with reduced gate overlap and method Nov. 2, 1999
5963800 CMOS integration process having vertical channel Oct. 5, 1999
5950089 Method of making read-only memory device having a silicon-on-insulator structure Sep. 7, 1999
5933735 Semiconductor read-only memory device and method of fabricating the same Aug. 3, 1999
5866458 Method for fabricating a CMOS Feb. 2, 1999
5856216 Method of manufacturing a semiconductor integrated circuit device including an SRAM Jan. 5, 1999
5854109 Silicide process for manufacturing a mask ROM Dec. 29, 1998
5846863 Method for manufacturing a semiconductor ROM device Dec. 8, 1998
5811322 Method of making a broadband backside illuminated MESFET with collecting microlens Sep. 22, 1998
5792697 Method for fabricating a multi-stage ROM Aug. 11, 1998
5786253 Method of making a multi-level ROM device Jul. 28, 1998
5744392 Process for fabricating a multi-stage read-only memory device Apr. 28, 1998
5264386 Read only memory manufacturing method Nov. 23, 1993
5149664 Self-aligning ion-implantation method for semiconductor device having multi-gate type MOS transistor structure Sep. 22, 1992

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