Entries |
Document | Title | Date |
20080206943 | METHOD OF FORMING STRAINED CMOS TRANSISTOR - A method of fabricating CMOS transistor is disclosed. Initially, a semiconductor substrate having at least a first active area and a second active area is provided. A high-strained thin film is formed on the semiconductor substrate, the first active area, and the second active area. Thereafter, a mask is formed to cover a part of the high-strained thin film, which is disposed on the first active area. An implantation is performed to implant dopants into the part of the high-strained thin film on the second active area and to modify the stress status thereof. After that, the mask is removed and a rapid thermal annealing process is performed. Then, the high-strained thin film is removed and the method of the present invention is accomplished. | 08-28-2008 |
20080311714 | SEMICONDUCTOR STRUCTURE AND METHOD OF MANUFACTURE - A complimentary metal oxide semiconductor and a method of manufacturing the same using a self-aligning process to form one of the stacks of device. The method includes depositing an oxide layer over a portion of a metal layer over an nFET region of a CMOS structure and etching the metal layer over a pFET region of the CMOS structure. The method further includes etching at the oxide layer over the nFET region and forming gate structures over the nFET region and pFET region. | 12-18-2008 |
20090081836 | METHOD OF FORMING CMOS WITH SI:C SOURCE/DRAIN BY LASER MELTING AND RECRYSTALLIZATION - A method of forming crystalline Si:C in source and drain regions is provided. After formation of shallow trench isolation and gate electrodes of field effect transistors, gate spacers are formed on gate electrodes. Preamorphization implantation is performed in the source and drain regions, followed by carbon implantation. The upper portion of the source and drain regions comprises an amorphous mixture of silicon, germanium, and/or carbon. An anti-reflective layer is deposited to enhance the absorption of a laser beam into the silicon substrate. The laser beam is scanned over the silicon substrate including the upper source and drain region with the amorphous mixture. The energy of the laser beam is controlled so that the temperature of the semiconductor substrate is above the melting temperature of the amorphous mixture but below the glass transition temperature of silicon oxide so that structural integrity of the semiconductor structure is preserved. | 03-26-2009 |
20090104741 | METHODS OF FABRICATING SEMICONDUCTOR DEVICES USING A PLASMA PROCESS WITH NON-SILANE GAS INCLUDING DEUTERIUM - Semiconductor devices are fabricated using a plasma process with a non-silane gas that includes deuterium, and which may result in improved device reliability and/or other improved device operational characteristics. One such method can include forming a gate oxide layer on a transistor region, which is defined on a substrate, and forming a gate electrode on the gate oxide layer. An etch stop layer is formed on the gate oxide layer and the gate electrode. A plasma process is performed on the interface between the gate oxide layer and the substrate using a non-silane treatment gas including deuterium. An interlayer dielectric layer is formed on the etch stop layer. A bottom metal line is formed on the interlayer dielectric layer. | 04-23-2009 |
20090170258 | METHODS FOR FULL GATE SILICIDATION OF METAL GATE STRUCTURES - One embodiment relates to a method of fabricating an integrated circuit. In the method, p-type polysilicon is provided over a semiconductor body, where the p-type polysilicon has a first depth as measured from a top surface of the p-type polysilicon. An n-type dopant is implanted into the p-type polysilicon to form a counter-doped layer at the top-surface of the p-type polysilicon, where the counter-doped layer has a second depth that is less than the first depth. A catalyst metal is provided that associates with the counter-doped layer to form a catalytic surface. A metal is deposited over the catalytic surface. A thermal process is performed that reacts the metal with the p-type polysilicon in the presence of the catalytic surface to form a metal silicide. Other methods and devices are also disclosed. | 07-02-2009 |
20090291540 | CMOS Process with Optimized PMOS and NMOS Transistor Devices - A semiconductor process and apparatus includes forming NMOS and PMOS transistors ( | 11-26-2009 |
20100047978 | MANUFACTURE OF SEMICONDUCTOR DEVICE WITH STRESS STRUCTURE - A method for manufacturing a semiconductor device includes the steps of (a) forming a gate electrode on a silicon substrate, through a gate insulating film; (b) forming a lamination of an insulating film and a sacrificial film having different etching characteristics on the silicon substrate, covering the gate electrode, and anisotropically etching the lamination to form side wall spacers on side walls of the gate electrode and the gate insulating film; (c) implanting impurities into the silicon substrate on both sides of the side wall spacers; (d) etching the silicon substrate and the sacrificial film to form recesses in the silicon substrate, and to change a cross sectional shape of each of the side wall spacers to approximately an L-shape; (e) epitaxially growing Si—Ge-containing crystal in the recesses; and (f) depositing an insulating film containing stress, covering the side wall spacers. | 02-25-2010 |
20100075476 | SEMICONDUCTOR DEVICE FABRICATION METHOD - A method of manufacturing a semiconductor device which includes forming first and second gate patterns, forming first and second sidewall spacers on sidewalls of the first and second gate patterns respectively, implanting a first impurity into the semiconductor substrate, forming a third sidewall spacer on the first sidewall spacer and a fourth sidewall spacer on the second sidewall spacer in such a manner that the third sidewall spacer is in contact with the fourth sidewall spacer between the first and second gate patterns, implanting a second impurity into the semiconductor substrate, and removing the third and the fourth sidewall spacers. | 03-25-2010 |
20100120211 | Methods of manufacturing Semiconductor Devices Including PMOS and NMOS Transistors Having Different Gate Structures - A semiconductor device may include a semiconductor substrate having first and second regions. A first gate structure on the first region of the semiconductor substrate may include a metal oxide dielectric layer on the first region of the semiconductor substrate and a first conductive layer on the metal oxide dielectric layer. First and second source/drain regions of a first conductivity type may be provided in the first region of the semiconductor substrate on opposite sides of the first gate structure. A second gate structure on the second region of the semiconductor substrate may include a silicon oxide based dielectric layer and a second conductive layer on the silicon oxide based dielectric layer. First and second source/drain regions of a second conductivity type may be provided in the second region of the semiconductor substrate on opposite sides of the second gate structure, wherein the first and second conductivity types are different. Related methods are also discussed. | 05-13-2010 |
20100178739 | INTEGRATION SCHEME FOR AN NMOS METAL GATE - A method for making an NMOS transistor on a semiconductor substrate includes reducing the thickness of the PMD layer to expose the polysilicon gate electrode of the NMOS transistor and the polysilicon gate electrode of the PMOS transistor, and then removing the gate electrode of the NMOS transistor. The method also includes depositing a NMOS-metal layer over the semiconductor substrate, depositing a fill-metal layer over the NMOS-metal layer, and then reducing the thickness of the NMOS metal layer and the fill metal layer to expose the gate electrodes of the NMOS transistor and the PMOS transistor. | 07-15-2010 |
20100197092 | Method of Manufacturing Semiconductor Device Having Stress Creating Layer - Provided is a simplified method of manufacturing a semiconductor device having a stress creating layer. A first conductive first impurity region is formed on a semiconductor substrate on both sides of a first gate of a first area of the semiconductor substrate, and a second conductive second impurity region is formed on the semiconductor substrate on both sides of a second gate of a second area. First and second spacers are formed on sidewalls of the first and second gates, respectively. First and second semiconductor layers are formed in portions of the semiconductor substrate so as to contact the first and second impurity regions, respectively. The second semiconductor layer is removed. First and second barrier layers are formed in the first and second contact holes of the insulation layer, respectively. | 08-05-2010 |
20100203692 | METHODS OF FABRICATING INTEGRATED CIRCUIT DEVICES INCLUDING STRAINED CHANNEL REGIONS AND RELATED DEVICES - A method of fabricating an integrated circuit device includes forming first and second gate patterns on surfaces of a semiconductor substrate in PMOS and NMOS regions, respectively, of the substrate. P-type source/drain regions are epitaxially grown on opposite sides of the first gate pattern in the PMOS region to exert compressive stress on a first channel region therebetween adjacent the first gate pattern. N-type source/drain regions are epitaxially grown on opposite sides of the second gate pattern in the NMOS region to exert tensile stress on a second channel region therebetween adjacent the second gate pattern. Related devices are also discussed. | 08-12-2010 |
20100227445 | Method of fabricating metal oxide semiconductor transistor - A method of fabricating a MOS transistor is disclosed. The method includes the steps of: providing a semiconductor substrate; forming at least a gate on the semiconductor substrate; forming a protective layer on the semiconductor substrate, and the protective layer covering the surface of the gate; forming at least a recess within the semiconductor substrate adjacent to the gate; forming an epitaxial layer in the recess, wherein the top surface of the epitaxial layer is above the surface of the semiconductor substrate; and forming a spacer on the sidewall of the gate and on a portion of the epitaxial layer, wherein a contact surface of the epitaxial layer and the spacer is above the surface of the semiconductor substrate. | 09-09-2010 |
20100330756 | INTEGRATED CIRCUIT STRUCTURE MANUFACTURING METHODS USING HARD MASK AND PHOTORESIST COMBINATION - A method of manufacturing an integrated circuit structure implants a first-type of channel implant in a first area of a substrate and implants a second-type of channel implant in a second area of the substrate. The method forms at least one first gate conductor above the first area of the substrate and forms at least one second gate conductor above the second area of the substrate. The method forms a hard mask over the first gate conductor, the second gate conductor, and the substrate. The hard mask comprises an oxide or a nitride and patterns an organic photoresist over the hard mask, to leave the organic photoresist on areas of the hard mask that are above the first area of the substrate. The method removes portions of the hard mask not protected by the organic photoresist to leave the hard mask on the first area of the substrate and not on the second area of the substrate. The method then removes the organic photoresist, implants impurities in the second area of the substrate to form source and drain regions adjacent the second gate conductor; and removes the hard mask using a wet etching process. | 12-30-2010 |
20100330757 | ENHANCED CAP LAYER INTEGRITY IN A HIGH-K METAL GATE STACK BY USING A HARD MASK FOR OFFSET SPACER PATTERNING - When forming transistor elements on the basis of sophisticated high-k metal gate structures, the efficiency of a replacement gate approach may be enhanced by more efficiently adjusting the gate height of transistors of different conductivity type when the dielectric cap layers of transistors may have experienced a different process history and may thus require a subsequent adaptation of the final cap layer thickness in one type of the transistors. For this purpose, a hard mask material may be used during a process sequence for forming offset spacer elements in one gate electrode structure while covering another gate electrode structure. | 12-30-2010 |
20110097859 | METHOD OF FABRICATING CMOS TRANSISTOR - A method of fabricating a CMOS transistor includes forming strained channels by re-crystallized amorphous polysilicon with the tensile film or the compressive film during annealing. C or Ge ions are optionally used to form solid-phase epitaxy to amplify the stress in the strained channel. Therefore, the charge carrier mobility in a CMOS transistor is improved. | 04-28-2011 |
20110201164 | Method of Dual EPI Process For Semiconductor Device - The present disclosure provides a method of fabricating a semiconductor device that includes forming first and second gate structures over first and second regions of a substrate, respectively, forming spacers on sidewalls of the first and second gate structures, the spacers being formed of a first material, forming a capping layer over the first and second gate structures, the capping layer being formed of a second material different from the first material, forming a protection layer over the second region to protect the second gate structure, removing the capping layer over the first gate structure; removing the protection layer over the second region, epitaxially (epi) growing a semiconductor material on exposed portions of the substrate in the first region, and removing the capping layer over the second gate structure by an etching process that exhibits an etching selectivity of the second material to the first material. | 08-18-2011 |
20110201165 | CMOS DEVICE COMPRISING MOS TRANSISTORS WITH RECESSED DRAIN AND SOURCE AREAS AND NON-CONFORMAL METAL SILICIDE REGIONS - A non-conformal metal silicide in a transistor of recessed drain and source configuration may provide enhanced efficiency with respect to strain-inducing mechanisms, drain/source resistance and the like. For this purpose, in some cases, an amorphizing implantation process may be performed prior to the silicidation process, while in other cases an anisotropic deposition of the refractory metal may be used. | 08-18-2011 |
20110230022 | Source/Drain Strained Layers - A semiconductor device and method of manufacture thereof wherein a PMOS source/drain region of a transistor within the substrate includes a first strained layer in the PMOS source/drain region and a first capping layer in contact with the first strained layer. Further, the semiconductor device and method provide for an NMOS source/drain region of a transistor within the substrate including a second strained layer in the NMOS source/drain region and a second capping layer in contact with the second strained layer. | 09-22-2011 |
20110281409 | Semiconductor Structures Using Replacement Gate and Methods of Manufacture - An improved semiconductor device manufactured using, for example, replacement gate technologies. The method includes forming a dummy gate structure having a gate stack and spacers. The method further includes forming a dielectric material adjacent to the dummy gate structure. The method further includes removing the spacers to form gaps, and implanting a halo extension through the gaps and into an underlying diffusion region. | 11-17-2011 |
20120015489 | METHODS OF MANUFACTURING SEMICONDUCTOR DEVICES - A semiconductor device and a method of manufacturing a semiconductor device are provided. In a method of manufacturing a semiconductor device, a gate structure is formed on a substrate. An epitaxial layer is formed on a top surface of the substrate adjacent to the gate structure. An elevated source/drain (ESD) layer and an impurity region are formed by implanting impurities and carbon in the epitaxial layer and an upper portion of the substrate using the gate structure as an ion implantation mask. A metal silicide layer is formed on the ESD layer. | 01-19-2012 |
20120040502 | MANUFACTURE OF SEMICONDUCTOR DEVICE WITH STRESS STRUCTURE - A method for manufacturing a semiconductor device includes the steps of (a) forming a gate electrode on a silicon substrate, through a gate insulating film; (b) forming a lamination of an insulating film and a sacrificial film having different etching characteristics on the silicon substrate, covering the gate electrode, and anisotropically etching the lamination to form side wall spacers on side walls of the gate electrode and the gate insulating film; (c) implanting impurities into the silicon substrate on both sides of the side wall spacers; (d) etching the silicon substrate and the sacrificial film to form recesses in the silicon substrate, and to change a cross sectional shape of each of the side wall spacers to approximately an L-shape; (e) epitaxially growing Si—Ge-containing crystal in the recesses; and (f) depositing an insulating film containing stress, covering the side wall spacers. | 02-16-2012 |
20120077319 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING EPITAXIAL BLOCKING LAYERS - A method of fabricating a semiconductor device includes forming gate structures on PMOS and NMOS transistor regions of the semiconductor substrate, forming epitaxial blocking layers on source/drain regions of PMOS and NMOS transistor regions using a nitridation process, then selectively removing one of the epitaxial blocking layers, and using a SEG process to form an epitaxial layer on respective source/drain regions while shielding the other source/drain regions with a remaining epitaxial blocking layer. | 03-29-2012 |
20120156839 | Patterning of a Stressed Dielectric Material in a Contact Level Without Using an Underlying Etch Stop Layer - An efficient strain-inducing mechanism may be implemented in the form of differently stressed material layers that are formed above transistors of different types. The strain-inducing dielectric materials may be formed so as to be in direct contact with the corresponding transistors, thereby enhancing the overall strain transfer efficiency. Moreover, the disclosed manufacturing strategy avoids or at least significantly reduces any interaction of reactive etch atmospheres used to pattern the strain-inducing material layers with metal silicide regions, which may be formed individually for each type of transistor. | 06-21-2012 |
20120171826 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE - A method of fabricating a semiconductor includes providing a substrate having a first region and a second region defined therein, forming a first gate and a first source and drain region in the first region and forming a second gate and a second source and drain region in the second region, forming an epitaxial layer in the second source and drain region, forming a first metal silicide layer in the first source and drain region, forming an interlayer dielectric layer on the first region and the second region, forming a plurality of contact holes exposing the first metal silicide layer and the epitaxial layer while penetrating the interlayer dielectric layer, forming a second metal silicide layer in the exposed epitaxial layer, and forming a plurality of contacts contacting the first and second metal silicide layers by filling the plurality of contact holes. | 07-05-2012 |
20120244670 | METHODS OF FABRICATING SEMICONDUCTOR DEVICES - A substrate including an NMOS transistor region and a PMOS transistor region is prepared. A silicon-germanium layer is formed on the PMOS transistor region. Nitrogen atoms are injected in an upper portion of the silicon-germanium layer. A first gate dielectric layer is formed on the NMOS transistor region and the PMOS transistor region. The nitrogen atoms are injected into the upper portion of the silicon-germanium layer before forming the first gate dielectric layer. | 09-27-2012 |
20130005096 | SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME - A semiconductor device comprises a substrate and first and second stress-generating epitaxial regions on the substrate and spaced apart from each other. A channel region is on the substrate and positioned between the first and second stress-generating epitaxial regions. A gate electrode is on the channel region. The channel region is an epitaxial layer, and the first and second stress-generating epitaxial regions impart a stress on the channel region. | 01-03-2013 |
20130005097 | METHOD FOR INTEGRATING REPLACEMENT GATE IN SEMICONDUCTOR DEVICE - A method for integrating a replacement gate in a semiconductor device is disclosed. The method may comprise: forming a well region on a semiconductor substrate, and defining a N-type device region and/or a P-type device region; forming a sacrificial gate stack or sacrificial gate stacks respectively on the N-type device region and/or the P-type device region, the sacrificial gate stack or each of the sacrificial gate stacks comprising a sacrificial gate dielectric layer and a sacrificial gate electrode layer, wherein the sacrificial gate dielectric layer is disposed on the semiconductor substrate, and the sacrificial gate electrode layer is disposed on the sacrificial gate dielectric layer; forming a spacer or spacers surrounding the sacrificial gate stack or the respective sacrificial gate stacks; forming source/drain regions on both sides of the sacrificial gate stack or the respective sacrificial gate stacks and embedded into the semiconductor substrate; forming a SiO | 01-03-2013 |
20130052779 | FABRICATION OF A SEMICONDUCTOR DEVICE WITH EXTENDED EPITAXIAL SEMICONDUCTOR REGIONS - A method of fabricating a semiconductor device structure begins by forming a layer of oxide material overlying a first gate structure having a first silicon nitride cap and overlying a second gate structure having a second silicon nitride cap. The first gate structure corresponds to a p-type transistor to be fabricated, and the second gate structure corresponds to an n-type transistor to be fabricated. The method continues by performing a tilted ion implantation procedure to implant ions of an impurity species in a channel region of semiconductor material underlying the first gate structure, during which an ion implantation mask protects the second gate structure. Thereafter, the ion implantation mask and the layer of oxide material are removed, and regions of epitaxial semiconductor material are formed corresponding to source and drain regions for the first gate structure. Thereafter, the first silicon nitride cap and the second silicon nitride cap are removed. | 02-28-2013 |
20130071975 | METHOD AND APPARATUS FOR MANUFACTURING SEMICONDUCTOR DEVICE - The present invention provides a method and apparatus for manufacturing a semiconductor device using a PVD method and enabling achievement of a desired effective work function and reduction in leak current without increasing an equivalent oxide thickness. A method for manufacturing a semiconductor device in an embodiment of the present invention includes the steps of: preparing a substrate on which an insulating film having a relative permittivity higher than that of a silicon oxide film is formed; and depositing a metal nitride film on the insulating film. The metal nitride depositing step is a step of sputtering deposition in an evacuatable chamber using a metal target and a cusp magnetic field formed over a surface of the metal target by a magnet mechanism in which magnet pieces are arranged as grid points in such a grid form that the adjacent magnet pieces have their polarities reversed from each other. | 03-21-2013 |
20130078773 | Method for manufacturing CMOS FET - A method for manufacturing a CMOS FET comprises forming a first interfacial SiO | 03-28-2013 |
20130109142 | Strained-Induced Mobility Enhancement Nano-Device Structure and Integrated Process Architecture for CMOS Technologies | 05-02-2013 |
20130267070 | REPLACEMENT GATES TO ENHANCE TRANSISTOR STRAIN - Some embodiments of the present invention include apparatuses and methods relating to NMOS and PMOS transistor strain. | 10-10-2013 |
20130316503 | STRUCTURE AND METHOD TO MODULATE THRESHOLD VOLTAGE FOR HIGH-K METAL GATE FIELD EFFECT TRANSISTORS (FETs) - A method for forming an electrical device that includes forming a high-k gate dielectric layer over a semiconductor substrate that is patterned to separate a first portion of the high-k gate dielectric layer that is present on a first conductivity device region from a second portion of the high-k gate dielectric layer that is present on a second conductivity device region. A connecting gate conductor is formed on the first portion and the second portion of the high-k gate dielectric layer. The connecting gate conductor extends from the first conductivity device region over the isolation region to the second conductivity device region. One of the first conductivity device region and the second conductivity device region may then be exposed to an oxygen containing atmosphere. Exposure with the oxygen containing atmosphere modifies a threshold voltage of the semiconductor device that is exposed. | 11-28-2013 |
20130323893 | Methods for Forming MOS Devices with Raised Source/Drain Regions - A method includes forming a first gate stack of a first device over a semiconductor substrate, and forming a second gate stack of a second MOS device over the semiconductor substrate. A first epitaxy is performed to form a source/drain stressor for the second MOS device, wherein the source/drain stressor is adjacent to the second gate stack. A second epitaxy is performed to form a first silicon layer and a second silicon layer simultaneously, wherein the first silicon layer is over a first portion of the semiconductor substrate, and is adjacent the first gate stack. The second silicon layer overlaps the source/drain stressor. | 12-05-2013 |
20140073097 | METHOD OF DUAL EPI PROCESS FOR SEMICONDCUTOR DEVICE - The present disclosure provides a method of fabricating a semiconductor device that includes forming first and second gate structures over first and second regions of a substrate, respectively, forming spacers on sidewalls of the first and second gate structures, the spacers being formed of a first material, forming a capping layer over the first and second gate structures, the capping layer being formed of a second material different from the first material, forming a protection layer over the second region to protect the second gate structure, removing the capping layer over the first gate structure; removing the protection layer over the second region, epitaxially (epi) growing a semiconductor material on exposed portions of the substrate in the first region, and removing the capping layer over the second gate structure by an etching process that exhibits an etching selectivity of the second material to the first material. | 03-13-2014 |
20140147978 | Strained Structure of a Semiconductor Device - A semiconductor device comprises a substrate comprising a major surface; a p-type Field Effect Transistor (pFET) comprising: a P-gate stack over the major surface, a P-strained region in the substrate adjacent to one side of the P-gate stack, wherein a lattice constant of the P-strained region is different from a lattice constant of the substrate, wherein the P-strained region has a first top surface higher than the major surface; and a P-silicide region on the P-strained region; and an n-type Field Effect Transistor (nFET) comprising: an N-gate stack over the major surface, an N-strained region in the substrate adjacent to one side of the N-gate stack, wherein a lattice constant of the N-strained region is different from a lattice constant of the substrate, wherein the N-strained region has a second top surface lower than the major surface and a N-silicide region on the N-strained region. | 05-29-2014 |
20140193957 | REDUCING GATE HEIGHT VARIANCE DURING SEMICONDUCTOR DEVICE FORMATION - In general, aspects of the present invention relate to approaches for forming a semiconductor device such as a FET with reduced gate stack height variance. Specifically, when a gate stack height variance is detected/identified between a set of gate stacks, a hard mask layer and sets of spacers are removed from the uneven gate stacks leaving behind (among other things) a set of dummy gates. A liner layer and an inter-layer dielectric are formed over the set of dummy gates. The liner layer is then removed from a top surface (or at least a portion thereof) of the set of dummy gates, and the set of dummy gates are then removed. The result is a set of gate regions having less height variance/disparity. | 07-10-2014 |
20150044830 | HARD MASK FOR SOURCE/DRAIN EPITAXY CONTROL - An integrated circuit is formed to include a first polarity MOS transistor and a second, opposite, polarity MOS transistor. A hard mask of silicon-doped boron nitride (Si | 02-12-2015 |
20150064863 | MASKLESS DUAL SILICIDE CONTACT FORMATION - Embodiments of present invention provide a method of forming silicide contacts of transistors. The method includes forming a first set of epitaxial source/drain regions of a first set of transistors; forming a sacrificial epitaxial layer on top of the first set of epitaxial source/drain regions; forming a second set of epitaxial source/drain regions of a second set of transistors; converting a top portion of the second set of epitaxial source/drain regions into a metal silicide and the sacrificial epitaxial layer into a sacrificial silicide layer in a silicidation process wherein the first set of epitaxial source/drain regions underneath the sacrificial epitaxial layer is not affected by the silicidation process; removing selectively the sacrificial silicide layer; and converting a top portion of the first set of epitaxial source/drain regions into another metal silicide. | 03-05-2015 |
20150099336 | METHODS OF MANUFACTURING INTEGRATED CIRCUITS HAVING FINFET STRUCTURES WITH EPITAXIALLY FORMED SOURCE/DRAIN REGIONS - Methods of manufacturing semiconductor integrated circuits having FinFET structures with epitaxially formed source and drain regions are disclosed. A method of fabricating an integrated circuit includes forming a plurality of silicon fin structures on a semiconductor substrate, epitaxially growing a silicon material on the fin structures, wherein a merged source/drain region is formed on the fin structures, and anisotropically etching at least one of the merged source drain regions to form an un-merged source/drain region. | 04-09-2015 |
20150104913 | Simultaneous Formation of Source/Drain Openings with Different Profiles - A method includes forming a first gate stack and a second gate stack over a first portion and a second portion, respectively, of a semiconductor substrate, masking the first portion of the semiconductor substrate, and with the first portion of the semiconductor substrate being masked, implanting the second portion of the semiconductor substrate with an etch-tuning element. The first portion and the second portion of the semiconductor substrate are etched simultaneously to form a first opening and a second opening, respectively, in the semiconductor substrate. The method further includes epitaxially growing a first semiconductor region in the first opening, and epitaxially growing a second semiconductor region in the second opening. | 04-16-2015 |
20150349094 | METHOD FOR FABRICATING SEMICONDUCTOR DEVICE - Provided are a method for fabricating a semiconductor device The method for fabricating include providing a substrate including a first region and a second region, the first region including first and second sub-regions, and the second region including third and fourth sub-regions, forming first to fourth fins on the first and second regions to protrude from the substrate, the first fin being formed on the first sub-region, the second fin being formed on the second sub-region, the third fin being formed on the third sub-region, and the fourth fin being formed on the fourth sub-region, forming first to fourth dummy gate structures to intersect the first to fourth fins, the first dummy gate structure being formed on the first fin, the second dummy gate structure being formed on the second fin, the third dummy gate structure being formed on the third fin, and the fourth dummy gate structure being formed on the fourth fin, forming a first doped region in each of the first and second fins and a second doped region in each of the third and fourth fins by doping impurities into the first to fourth fins on both sides of the first to fourth dummy gate structures by performing an ion implantation process simultaneously in the first and second regions; and removing the first doped region of the first fin and the second doped region of the third fin, or removing the first doped region of the second fin and the second doped region of the fourth fin. | 12-03-2015 |
20160126144 | METHODS OF FORMING A METAL-INSULATOR-SEMICONDUCTOR (MIS) STRUCTURE AND A DUAL CONTACT DEVICE - A method includes forming a first metal layer on source/drain regions of an n-type metal-oxide-semiconductor (NMOS) device and on source/drain regions of a p-type MOS (PMOS) device by chemical vapor deposition (CVD) or non-energetic physical vapor deposition (PVD). The method further includes selectively performing a rapid thermal anneal (RTA) process on the first metal layer after forming the first metal layer. | 05-05-2016 |
20160133526 | DEVICES HAVING INHOMOGENEOUS SILICIDE SCHOTTKY BARRIER CONTACTS - A method of fabricating Schottky barrier contacts for an integrated circuit (IC). A substrate including a silicon including surface is provided. A plurality of transistors are formed on the silicon including surface in at least one PMOS region and at least one NMOS region, where the plurality of transistors include at least one exposed p-type surface region and at least one exposed n-type surface region. Pre-silicide cleaning removes oxide from the exposed p-type surface regions and exposed n-type surface regions. A plurality of metals are deposited including Yb and Pt to form at least one metal layer on the substrate. The metal layer is heated to induce formation of an inhomogeneous silicide layer including both Ptsilicide and Ybsilicide on the exposed p-type and exposed n-type surface regions. Unreacted metal of the metal layer is stripped. | 05-12-2016 |
20160141181 | SEMICONDUCTOR DEVICE, METHOD OF FABRICATING THE SAME, AND APPARATUS USED IN FABRICATION THEREOF - A semiconductor device includes a substrate, upper impurity regions in upper portions of the substrate, metal electrodes electrically connected to the upper impurity regions, metal silicide layers between the metal electrodes and the upper impurity regions, and a lower impurity region in a lower portion of the substrate. A method of fabricating the semiconductor device and an apparatus used in fabricating the semiconductor device is also provided. | 05-19-2016 |
20160155672 | Simultaneous Formation of Source/Drain Openings with Different Profiles | 06-02-2016 |
20160163717 | Embedded SRAM and Methods of Forming the Same - A chip includes a semiconductor substrate, and a first N-type Metal Oxide Semiconductor Field Effect Transistor (NMOSFET) at a surface of the semiconductor substrate. The first NMOSFET includes a gate stack over the semiconductor substrate, a source/drain region adjacent to the gate stack, and a dislocation plane having a portion in the source/drain region. The chip further includes a second NMOSFET at the surface of the semiconductor substrate, wherein the second NMOSFET is free from dislocation planes. | 06-09-2016 |