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Class 438/231 - Plural doping steps


Subclass of Class 438 - Semiconductor device manufacturing: process
Definition: Process including multiple steps of introducing electrically
No. of patents: 761
Last issue date: 01/24/2012


1                      
NumberTitleIssue Date
8101480Methods of forming transistors and CMOS semiconductor devices using an SMT technique
A method of forming a transistor induces stress in the channel region using a stress memorization technique (SMT). Impurities are implanted into a substrate adjacent a gate electrode structure to produce an amorphous region adjacent the channel region. The amorphous...
01/24/2012
8101479Fabrication of asymmetric field-effect transistors using L-shaped spacers
A gate electrode (302) of a field-effect transistor (102) is defined above, and vertically separated by a gate dielectric layer (300) from, a channel-zone portion (284) of body material of a semiconductor body. Semiconductor dopant is int...
01/24/2012
8067283Semiconductor device fabricating method
A semiconductor device fabricating method is described. The semiconductor device fabricating method includes providing a substrate. A first gate insulating layer and a second gate insulating layer are formed on the substrate, respectively. A gate layer is blanketly ...
11/29/2011
8039341Selective uniaxial stress modification for use with strained silicon on insulator integrated circuit
A semiconductor fabrication process includes masking a first region, e.g., an NMOS region, of a semiconductor wafer, e.g., a biaxial, tensile strained silicon on insulator (SOI) wafer and creating recesses in source/drain regions of a second wafer region, e.g., a PM...
10/18/2011
8039342Enhanced integrity of a high-K metal gate electrode structure by using a sacrificial spacer for cap removal
In a process strategy for forming sophisticated high-k metal gate electrode structures in an early manufacturing phase, the dielectric cap material may be removed on the basis of a protective spacer element, thereby ensuring integrity of a silicon nitride sidewall s...
10/18/2011
8017473Modifying work function in PMOS devices by counter-doping
A semiconductor structure comprising an SRAM/inverter cell and a method for forming the same are provided, wherein the SRAM/inverter cell has an improved write margin. The SRAM/inverter cell includes a pull-up PMOS device comprising a gate dielectric over the semico...
09/13/2011
8003460Method of forming a semiconductor structure comprising a formation of at least one sidewall spacer structure
According to an illustrative example, a method of forming a semiconductor structure comprises providing a semiconductor substrate comprising a first feature and a second feature. A material layer is formed over the first feature and the second feature. A mask is for...
08/23/2011
7935593Stress optimization in dual embedded epitaxially grown semiconductor processing
Embodiments of the present disclosure provide stress optimization during manufacturing of dual embedded epitaxially grown (EPI) semiconductor structures using just two masks, such as nFET and pFET open for embedded epitaxial using SiC and SiGe, and separated halo im...
05/03/2011
7897451Method for creating tensile strain by selectively applying stress memorization techniques to NMOS transistors
By selectively applying a stress memorization technique to N-channel transistors, a significant improvement of transistor performance may be achieved. High selectivity in applying the stress memorization approach may be accomplished by substantially maintaining the ...
03/01/2011
7888198Method of fabricating a MOS transistor with double sidewall spacers in a peripheral region and single sidewall spacers in a cell region
An improved source/drain junction configuration in a metal-oxide semiconductor transistor is provided, as well as a novel method for fabricating this junction. This configuration employs gate double sidewall spacers in the peripheral region and gate single sidewall ...
02/15/2011
7776680Complementary metal oxide semiconductor device with an electroplated metal replacement gate
Disclosed herein are embodiments of a method of forming a complementary metal oxide semiconductor (CMOS) device that has at least one high aspect ratio gate structure with a void-free and seam-free metal gate conductor layer positioned on top of a relatively thin hi...
08/17/2010
7736968Reducing poly-depletion through co-implanting carbon and nitrogen
A method for forming a semiconductor structure includes providing a semiconductor substrate; forming a gate dielectric layer over the semiconductor substrate; forming a gate electrode layer over the gate dielectric layer; doping carbon and nitrogen into the gate ele...
06/15/2010
7696038Methods for fabricating flash memory devices
Methods for fabricating flash memory devices are provided. In accordance with an exemplary embodiment of the invention, a method for fabricating a memory device comprises forming a first gate stack and a second gate stack overlying a substrate. A trench is etched in...
04/13/2010
7696039Method of fabricating semiconductor device employing selectivity poly deposition
A method for fabricating a semiconductor device employing a selectivity poly deposition is disclosed. The disclosed method comprises depositing selectivity poly on a gate poly and source/drain regions of the silicon substrate, and forming salicide regions on the gat...
04/13/2010
7666736Method for fabricating semiconductor device comprising P-type MISFET, including step of implanting fluorine
After the implantation of fluorine ions into a semiconductor substrate, a gate insulating film, a gate electrode and a protective film are formed on the semiconductor substrate. Thereafter, fluorine ions are again implanted into the semiconductor substrate. Furtherm...
02/23/2010
7629216Method for fabricating CMOS image sensor with plasma damage-free photodiode
A method for fabricating a complementary metal-oxide semiconductor (CMOS) image sensor includes providing a semi-finished substrate, forming a patterned blocking layer over a photodiode region of the substrate, implanting impurities on regions other than the photodi...
12/08/2009
7601583Transistor structure of memory device and method for fabricating the same
A memory device includes an active area protruding from a semiconductor substrate. A recess is formed in the active area. A field oxide layer is formed on the semiconductor substrate. A gate electrode extends across the active area while being overlapped with the re...
10/13/2009
7582523Method of manufacturing semiconductor device including insulated-gate field-effect transistors
A method of manufacturing a semiconductor device including MOS transistors is disclosed. N-type and p-type semiconductor films are formed respectively above first and second surface regions of a semiconductor substrate. First and second protective films are laminate...
09/01/2009
7494862Methods for uniform doping of non-planar transistor structures
Methods for uniformly tip doping a silicon body of a non-planar transistor and devices and systems formed by such methods. In one embodiment, a method can include vertical tip ion implantation of a silicon body with at least three surfaces on a substrate followed by...
02/24/2009
7473595Method for decreasing PN junction leakage current of dynamic random access memory
A method for decreasing a PN junction leakage current of a dynamic random access memory (DRAM), including the steps of: preparing an NMOS transistor formed on a P-type silicon substrate and comprising a drain; forming an insulation oxide layer on the P-type silicon ...
01/06/2009
7456062Method of forming a semiconductor device
A sidewall spacer structure is formed adjacent to a gate structure whereby a material forming an outer surface of the sidewall spacer structure contains nitrogen. Subsequent to its formation the sidewall spacer structure is annealed to harden the sidewall spacer str...
11/25/2008
7439123Low resistance contact semiconductor device structure
A method for making a semiconductor device structure includes producing a substrate having formed thereon a gate with spacers, respective source and drain regions adjacent to the gate and an; disposing a first metallic layer on the gate with spacers, and the source ...
10/21/2008
7439124Method of manufacturing a semiconductor device and semiconductor device
Method of manufacturing a semiconductor device includes: forming a substrate protection film to cover an n-type FET forming region having a first gate electrode and a p-type FET forming region having a second gate electrode; opening the p-type FET forming region by ...
10/21/2008
7432570Semiconductor device and manufacturing method thereof
A semiconductor device includes a substrate, a p-channel MIS transistor formed on an n-type well on the substrate, having a first gate dielectric and a first gate electrode formed thereon and formed of a Ta—C alloy wherein a crystal orientation ratio of a TaC (111...
10/07/2008
7432144Method for forming a transistor for reducing a channel length
A method of forming a transistor including: forming a gate oxide layer pattern and gate polysilicon layer pattern on a silicon substrate; forming a low energy ion implantation region aligned with both sidewalls of the gate polysilicon layer pattern; forming an amorp...
10/07/2008
7413946Formation of standard voltage threshold and low voltage threshold MOSFET devices
Wells are formed in a substrate where standard Vt and low Vt devices of both a first and second type are to be fabricated. Wells defining the locations of first type standard Vt devices are masked, and a first voltage threshold implant adjustment is performed within...
08/19/2008
7410859Stressed MOS device and method for its fabrication
A stressed MOS device and a method for its fabrication are provided. The MOS device comprises a substrate having a surface, the substrate comprising a monocrystalline semiconductor material having a first lattice constant. A channel region is formed of the monocryst...
08/12/2008
7402485Method of forming a semiconductor device
A sidewall spacer structure is formed adjacent to a gate structure whereby a material forming an outer surface of the sidewall spacer structure contains nitrogen. Subsequent to its formation the sidewall spacer structure is annealed to harden the sidewall spacer str...
07/22/2008
7402484Methods for forming a field effect transistor
Methods for forming a field effect transistor are disclosed. An illustrated method comprises: forming a gate electrode on a substrate; and forming a nitride layer on at least a part of the gate electrode and the substrate. ...
07/22/2008
7390711MOS transistor and manufacturing method thereof
A MOS transistor including a gate insulation layer and a gate electrode layer on a channel region of a semiconductor substrate. A gate spacer layer is formed on a sidewall of the electrode layer and the insulation layer. The transistor includes a deep extended sourc...
06/24/2008
7390719Method of manufacturing a semiconductor device having a dual gate structure
A semiconductor device having a dual gate is formed on a substrate having a dielectric layer. A first metallic conductive layer is formed on the dielectric layer to a first thickness, and annealed to have a reduced etching rate. A second metallic conductive layer is...
06/24/2008
7384839SRAM cell with asymmetrical transistors for reduced leakage
A method of fabricating an SRAM cell with reduced leakage is disclosed. The method comprises fabricating asymmetrical transistors in the SRAM cell. The transistors are asymmetrical in a manner that reduces the drain leakage current of the transistors. The fabricatio...
06/10/2008
7378305Semiconductor integrated circuit and fabrication process thereof
A semiconductor integrated circuit device includes an n-channel MOS transistor formed on a first device region of a silicon substrate and a p-channel MOS transistor formed on a second device region of the silicon substrate, wherein the n-channel MOS transistor inclu...
05/27/2008
7378308CMOS devices with improved gap-filling
A semiconductor structure includes a substrate, and a first MOS device on the first region of the substrate wherein the first MOS device includes a first spacer liner. The semiconductor structure further includes a second MOS device on the second region wherein the ...
05/27/2008
7371647Methods of forming transistors
The invention encompasses a method of forming a structure over a semiconductor substrate. A silicon dioxide containing layer is formed across at least some of the substrate. Nitrogen is formed within the silicon dioxide containing layer. Substantially all of the nit...
05/13/2008
7371646Manufacture of insulated gate type field effect transistor
After a field insulating film having an element opening is formed on the surface of a p-type well, a gate insulating film is formed on a semiconductor surface in the element opening. A gate electrode layer of polysilicon or the like is formed on the insulating film....
05/13/2008
7371691Silicon recess improvement through improved post implant resist removal and cleans
The present invention provides a process of manufacturing a semiconductor device 200 while reducing silicon loss. In one aspect, the process includes removing a photoresist layer 270 from a semiconductor substrate 235 adjacent a gate 240 ...
05/13/2008
7368792MOS transistor with elevated source/drain structure
In a metal-oxide semiconductor (MOS) transistor with an elevated source/drain structure and in a method of fabricating the MOS transistor with the elevated source/drain structure using a selective epitaxy growth (SEG) process, a source/drain extension junction is fo...
05/06/2008
7361539Dual stress liner
A semiconductor device structure is provided which includes a first field effect transistor (“FET”) having a first channel region, a first source region, a first drain region and a first gate conductor overlying the first channel region. A second FET is included...
04/22/2008
7358168Ion implantation method for forming a shallow junction
A shallow junction that previously would require the use of a low-energy ion implanter can be directly formed by high-energy or middle-energy ion implanters such that the manufacturer need not purchase a new low-energy ion implanter. In one embodiment, an ion-implan...
04/15/2008
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