Forming Array Of Gate Electrodes Patents (Class 438/587)
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Patent number: 8216935Abstract: A method of forming a transistor gate construction includes forming a gate stack comprising a sacrificial material received over conductive gate material. The gate stack has lateral sidewalls having insulative material received there-against. The sacrificial material is removed from being received over the conductive gate material to form a void space between the insulative material over the conductive gate material. Elemental tungsten is selectively deposited within the void space over the conductive gate material and a transistor gate construction forming there-from is formed there-from, and which has a conductive gate electrode which includes the conductive gate material and the elemental tungsten. The transistor gate might be used in NAND, DRAM, or other integrated circuitry.Type: GrantFiled: April 7, 2009Date of Patent: July 10, 2012Assignee: Micron Technology, Inc.Inventors: Eric R. Blomiley, Allen McTeer
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Patent number: 8216949Abstract: A method lor integrated circuit fabrication is disclosed. A spacer pattern is provided including a plurality ot spacers in an array region of a partially-fabricated integrated circuit. Each spacer is at least partly defined by opposing open volumes extending along lengths of the spacers. A pattern is subsequently defined in a periphery region of the partially-fabricated integrated circuit. A consolidated pattern is formed by concurrently transferring the spacer pattern and the pattern in the periphery region into an underlying masking layer. The consolidated pattern is transferred to an underlying substrate.Type: GrantFiled: February 17, 2010Date of Patent: July 10, 2012Assignee: Round Rock Research, LLCInventors: Mirzafer K Abatchev, Gurtej Sandhu, Luan Tran, William T Rericha, D. Mark Durcan
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Patent number: 8207053Abstract: A layout of a cell of a semiconductor device is disclosed to include a diffusion level layout including a plurality of diffusion region layout shapes. The layout of the cell also includes a gate electrode level layout is defined to include a number of linear-shaped layout features placed to extend in only a first parallel direction. Each of the number of the linear-shaped layout features within the gate electrode level layout of the restricted layout region is rectangular-shaped. The gate electrode level layout includes linear-shaped layout features defined along at least four different lines of extent in the first parallel direction. The layout of the cell also includes a number of interconnect level layouts each of which is defined to pattern conductive features within corresponding interconnect levels above the gate electrode level.Type: GrantFiled: September 25, 2009Date of Patent: June 26, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8203173Abstract: A semiconductor integrated circuit has: a substrate; a basic logic cell placed on the substrate and configured to function as a part of a logic circuit; and a dummy cell placed on the substrate and not configured to function as a part of a logic circuit. The basic logic cell includes a diffusion layer formed in the substrate, and a distance from the diffusion layer to a boundary between the basic logic cell and another cell adjacent to the basic logic cell is equal to a first distance. The dummy cell includes a dummy diffusion layer that is a diffusion layer formed in the substrate, and a distance from the dummy diffusion layer to a boundary between the dummy cell and another cell adjacent to the dummy cell is equal to the first distance.Type: GrantFiled: July 7, 2009Date of Patent: June 19, 2012Assignee: Renesas Electronics CorporationInventor: Toshifumi Uemura
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Patent number: 8198655Abstract: An integrated circuit comprising both memory and logic wherein at least one layer of the integrated circuit is fabricated using a common grating pattern for both memory and logic is described. In one embodiment, the integrated circuit comprises a substrate, an active layer, and a gate material layer such as a polysilicon layer, and the active layer, the gate material layer, or both the active layer and the gate material layer are formed using a common grating pattern for both memory and logic. By using a common grating pattern for both memory and logic, a corresponding layer of the integrated circuit can be reliably and affordably manufactured using sub-wavelength lithography.Type: GrantFiled: April 27, 2009Date of Patent: June 12, 2012Assignee: Carnegie Mellon UniversityInventors: Lawrence T. Pileggi, Daniel Morris
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Publication number: 20120126302Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes memory transistors, an interlayer insulating film, a peripheral transistor and a sidewall. The memory transistors are formed on a semiconductor substrate. Each of the memory transistors includes a first stack gate which includes a floating gate electrode, a second gate insulating film, and a control gate electrode. The interlayer insulating film is formed between the first stack gates. The interlayer insulating film includes a first air gap. The peripheral transistor is formed on the substrate. The peripheral transistor includes a second stack gate which includes a first gate electrode, a third gate insulating film, and a second gate electrode. The sidewall is formed on a side surface of the second stack gate and includes a second air gap. An upper end of the second air gap is located at a position lower than the third gate insulating film.Type: ApplicationFiled: March 21, 2011Publication date: May 24, 2012Inventors: Mitsuhiko Noda, Hidenobu Nagashima
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Publication number: 20120126338Abstract: Systems and methods are disclosed for manufacturing grounded gate cross-hair cells and standard cross-hair cells of fin field-effect transistors (finFETs). In one embodiment, a process may include forming gate trenches and gates on and parallel to row trenches in a substrate, wherein the gate trenches and gates are pitch-doubled such that four gate trenches are formed for every two row trenches. In another embodiment, a process may include forming gate trenches, gates, and grounded gates in a substrate, wherein the gate trenches and gates are formed such that three gate trenches are formed for every two row trenches.Type: ApplicationFiled: November 19, 2010Publication date: May 24, 2012Applicant: Micron Technology, Inc.Inventor: Werner Juengling
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Patent number: 8182863Abstract: A first substrate including, on one of surfaces, a light absorption layer having metal nitride and a material layer which is formed so as to be in contact with the light absorption layer is provided; the surface of the first substrate on which the material layer is formed and a deposition target surface of a second substrate are disposed to face each other; and part of the material layer is deposited on the deposition target surface of the second substrate in such a manner that irradiation with laser light having a repetition rate of greater than or equal to 10 MHz and a pulse width of greater than or equal to 100 fs and less than or equal to 10 ns is performed from the other surface side of the first substrate to selectively heat part of the material layer which overlaps with the light absorption layer.Type: GrantFiled: March 12, 2009Date of Patent: May 22, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Tomoya Aoyama, Takuya Tsurume, Takao Hamada
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Publication number: 20120113368Abstract: An embodiment of the invention discloses an array substrate comprising: a base substrate; and a multilayer array pattern formed on the base substrate, wherein the multilayer array pattern comprises an internal stress layer, the internal stress layer is capable of producing internal stress which tends to make the array substrate deformed in an arched-structure convex to a side on which the array pattern is provided. In addition, another embodiment of the invention discloses a method for manufacturing the array substrate, and also a LCD comprising the array substrate and a manufacturing method therefor.Type: ApplicationFiled: April 6, 2011Publication date: May 10, 2012Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Peilin Zhang
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Patent number: 8173532Abstract: A semiconductor structure and a method for forming the same. The method includes providing a semiconductor structure which includes a semiconductor substrate. The semiconductor substrate includes (i) a top substrate surface which defines a reference direction perpendicular to the top substrate surface and (ii) first and second semiconductor body regions. The method further includes forming (i) a gate divider region and (ii) a gate electrode layer on top of the semiconductor substrate. The gate divider region is in direct physical contact with gate electrode layer. A top surface of the gate electrode layer and a top surface of the gate divider region are essentially coplanar. The method further includes patterning the gate electrode layer resulting in a first gate electrode region and a second gate electrode region. The gate divider region does not overlap the first and second gate electrode regions in the reference direction.Type: GrantFiled: July 30, 2007Date of Patent: May 8, 2012Assignee: International Business Machines CorporationInventors: Robert C. Wong, Haining S. Yang
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Patent number: 8173545Abstract: A microelectronic method for the fabrication of a transistor gate using a precursor material that is suitable for being broken down into at least one metallic material after having been exposed to an electron beam. The invention applies in particular to the fabrication of multi-channel transistors, of the FinFET, suspended-channel, ITS or GAA type.Type: GrantFiled: May 3, 2007Date of Patent: May 8, 2012Assignee: Commissariat a l'Energie AtomiqueInventors: Thomas Ernst, Stéfan Landis
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Patent number: 8173491Abstract: Structures and methods for standard cell layouts having variable rules for spacing of layers to cell boundaries are disclosed. In one embodiment, a first standard cell layout is provided with a conductive layer having at least two portions spaced apart by a minimum spacing distance, the conductive layer having at least one portion spaced from a cell boundary by a first spacing distance of less than half of the minimum spacing distance; a second standard cell disposed adjacent the first standard cell with at least one second portion of the conductive layer in the second cell disposed adjacent the first portion in the first standard cell and spaced apart from a common cell boundary by a second spacing greater than half of the minimum; wherein the sum of the first and second spacings is at least as great as the minimum spacing. A method for forming standard is disclosed.Type: GrantFiled: March 29, 2011Date of Patent: May 8, 2012Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Oscar M. K. Law, Manoj Achyutrao Joshi, Kong-Beng Thei, Harry Chuang
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Patent number: 8168520Abstract: A method of manufacturing a semiconductor device according to an embodiment of the present invention forms at least one pair of gate electrodes having end portions opposed to each other across a gap.Type: GrantFiled: May 21, 2009Date of Patent: May 1, 2012Assignee: Kabushiki Kaisha ToshibaInventor: Gaku Sudo
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Patent number: 8168488Abstract: A method for reducing contact to gate shorts in a semiconductor device and the resulting semiconductor device are described. In one embodiment, a gate is formed on a substrate, a contact is formed on the gate and the substrate, and an insulator is formed between the gate and the contact. The insulator may be formed by oxidizing the gate to form a dielectric between the contact and the gate after the contact is formed on the gate.Type: GrantFiled: February 11, 2011Date of Patent: May 1, 2012Assignee: Intel CorporationInventor: Nadia Rahhal-Orabi
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Publication number: 20120098043Abstract: A method of manufacturing a semiconductor device having metal gate includes providing a substrate having a semiconductor device and a contact etch stop layer (CESL) and a dielectric layer covering the semiconductor device formed thereon, wherein the semiconductor device having at least a dummy gate, performing a dummy gate removal step to form at least an opening in the semiconductor device and to simultaneously remove a portion of the CESL such that a top surface of the CESL is lower than the semiconductor device and the dielectric layer and a plurality of recesses is obtained, and performing a recess elimination step to form a substantially even surface of the dielectric layer.Type: ApplicationFiled: October 25, 2010Publication date: April 26, 2012Inventors: Ya-Hsueh Hsieh, Teng-Chun Tsai, Chia-Hsi Chen, Cheng-Huei Chang, Po-Cheng Huang, Hsin-Kuo Hsu
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Patent number: 8158517Abstract: An object of the present invention is to provide a method for manufacturing a display device by improving the utilization efficiency of materials and simplifying manufacturing process. Another object of the invention is to provide a technique for forming a pattern such as a wiring having a predetermined shape included in a display device with good controllability. A method for manufacturing a wiring substrate of the invention includes the steps of: forming a first region having a subject material; modifying the surface of the subject material partly to form a second region having a boundary with respect to the first region; continuously discharging a composition containing a conductive material to a part of the first region across the boundary and the second region; solidifying the composition to form a conductive layer; and removing the conductive layer formed in a part of the first region across the boundary.Type: GrantFiled: June 22, 2005Date of Patent: April 17, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroko Yamamoto, Ryo Tokumaru
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Patent number: 8158502Abstract: A method of manufacturing a semiconductor device includes forming silicon pillar 11 on substrate 10, forming a protective film which covers an upper end portion and a lower end portion of a side surface of silicon pillar 11, forming a constricted portion by anisotropic etching in a portion of the side surface of silicon pillar 11 which is not covered with the protective film after forming the protective film, removing the protective film after forming the constricted portion, forming gate oxide film 12 which covers the side surface of silicon pillar 11 in which the constricted portion is formed, and forming gate electrode 13 which covers gate oxide film 12.Type: GrantFiled: December 8, 2009Date of Patent: April 17, 2012Assignee: Elpida Memory, Inc.Inventor: Kazuhiro Nojima
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Patent number: 8153487Abstract: A semiconductor device includes a semiconductor substrate, a first insulating film provided on the semiconductor substrate, a charge storage layer provided on the first insulating film, a second insulating film comprising a plurality of insulating films provided on the charge storage layer and comprising a nitride film as an uppermost layer, and a single-layer control gate electrode provided on the second insulating film and comprising metal silicide.Type: GrantFiled: March 10, 2010Date of Patent: April 10, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Wakako Takeuchi, Hiroshi Akahori, Murato Kawai
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Publication number: 20120074368Abstract: A semiconductor memory device having a diode and a transistor connected in series, which prevents carriers from going from the diode into the transistor, thereby reducing the possibility of transistor deterioration. A structure to annihilate carriers from the diode is provided between a channel layer of the transistor and a diode semiconductor layer of the diode where the carriers are generated.Type: ApplicationFiled: July 13, 2011Publication date: March 29, 2012Inventors: Yoshitaka SASAGO, Masaharu KINOSHITA, Mitsuharu TAI, Akio SHIMA, Takashi KOBAYASHI
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Patent number: 8138075Abstract: A backplane having a circuit array having at least one region comprising a substrate having a conductive plane under a dielectric surface, a first conductive layer on said dielectric surface, a selectively disposed insulator disposed over said first conductive layer, and a second conductive layer disposed on said insulator, wherein said first conductive layer is electrically insulated from said second conductive layer, said first conductive layer being formed electrographically, and said second conductive layer being formed by a process comprising selective deposition of liquid droplets, which are then solidified. The second conductive layer may be formed electrographically or by a raster deposition process. The backplane preferably forms an active matrix for a flat panel display using organic semiconductor active elements.Type: GrantFiled: February 5, 2007Date of Patent: March 20, 2012Inventors: Dietmar C. Eberlein, Robert H. Detig
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Patent number: 8133777Abstract: A method of fabricating a memory is provided. A substrate including a memory region and a periphery region is provided. A plurality of gates each having spacers is formed on the substrate. A plurality of openings is formed between the gates in the memory region. A first material layer is formed in the memory region to cover the gates and fill the openings. A barrier layer is formed on the substrate to cover the gates in the periphery region and the first material layer in the memory region. A second material layer is formed on the substrate in the periphery region to cover the barrier layer in the periphery region. The barrier layer covering the first material layer is removed. The first material layer is partially removed to form a plurality of second openings. Each second opening is disposed on a top of the gate in the memory region.Type: GrantFiled: February 15, 2011Date of Patent: March 13, 2012Assignee: Winbond Electronics Corp.Inventors: Lu-Ping Chiang, Hsiu-Han Liao
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Patent number: 8134185Abstract: A layout of a cell of a semiconductor device is disclosed to include a diffusion level layout including a plurality of diffusion region layout shapes, including a p-type and an n-type diffusion region separated by a central inactive region. The layout of the cell includes a gate electrode level layout corresponding to an entire gate level of the cell. The gate electrode layout includes a number of linear-shaped layout features placed to extend in only a first parallel direction. Each of the number of the linear-shaped layout features within the gate electrode level layout of the restricted layout region is rectangular-shaped. Linear-shaped layout features within the gate electrode level layout extend over one or more of the p-type and/or n-type diffusion regions to form PMOS and NMOS transistor devices. A total number of the PMOS and NMOS transistor devices in the cell is greater than or equal to eight.Type: GrantFiled: September 25, 2009Date of Patent: March 13, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8134184Abstract: A layout of a cell of a semiconductor device is disclosed to include a diffusion level layout including a plurality of diffusion region layout shapes, including a p-type and an n-type diffusion region separated by a central inactive region. The layout of the cell includes a gate electrode level layout corresponding to an entire gate level of the cell. The gate electrode layout includes a number of linear-shaped layout features placed to extend in only a first parallel direction. Each of the number of the linear-shaped layout features within the gate electrode level layout of the restricted layout region is rectangular-shaped. Linear-shaped layout features within the gate electrode level layout extend over one or more of the p-type and/or n-type diffusion regions to form PMOS and NMOS transistor devices. A number of the PMOS transistor devices is equal to a number of the NMOS transistor devices in the cell.Type: GrantFiled: September 25, 2009Date of Patent: March 13, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8129753Abstract: A layout of a cell of a semiconductor device is disclosed to include a diffusion level layout including a plurality of diffusion region layout shapes, including p-type and n-type diffusion regions. The layout of the cell also includes a gate electrode level layout defined to include a number of linear-shaped layout features placed to extend in only a first parallel direction. Each of the number of the linear-shaped layout features within the gate electrode level layout of the restricted layout region is rectangular-shaped. Linear-shaped layout features within the gate electrode level layout extend over one or more of the p-type and/or n-type diffusion regions to form PMOS and NMOS transistor devices. A total number of the PMOS and NMOS transistor devices in the cell is greater than or equal to eight.Type: GrantFiled: September 25, 2009Date of Patent: March 6, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8129754Abstract: A cell of a semiconductor device is disclosed to include a diffusion level including a plurality of diffusion regions separated by inactive regions. The cell also includes a gate electrode level including a number of conductive features defined to extend in only a first parallel direction. Each of the conductive features within the gate electrode level is fabricated from a respective originating rectangular-shaped layout feature. The gate electrode level includes conductive features defined along at least four different virtual lines of extent in the first parallel direction. The cell also includes a number of interconnect levels formed above the gate electrode level.Type: GrantFiled: September 30, 2009Date of Patent: March 6, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8124512Abstract: A semiconductor device includes a first conductive structure and a second conductive structure. The first conductive structure is formed in a first region of a substrate, and includes a first polysilicon layer pattern, a first conductive layer pattern having a resistance smaller than that of the first polysilicon layer pattern, and a first hard mask. The second conductive structure is formed in a second region of the substrate and has a thickness substantially the same as that of the first conductive structure. The second conductive structure includes a second polysilicon layer pattern, a second conductive layer pattern having a resistance smaller than that of the second polysilicon layer pattern and having a thickness different from that of the first conductive layer pattern, and a second hard mask.Type: GrantFiled: December 1, 2009Date of Patent: February 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Dae-Joong Won
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Patent number: 8119489Abstract: A method of fabricating an isolation structure and the structure thereof is provided. The method is compatible with the embedded memory process and provides the isolation structure with a poly cap thereon to protect the top corners of the isolation structure, without using an extra photomask.Type: GrantFiled: March 28, 2008Date of Patent: February 21, 2012Assignee: United Microelectronics Corp.Inventor: Ping-Chia Shih
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Patent number: 8115215Abstract: An array substrate is disclosed. The array substrate comprises a substrate, a gate metal layer, a gate insulation layer, a semiconductor layer, a patterned metal layer, a flat layer, and a pixel electrode. The patterned metal layer is disposed on the surface of the semiconductor layer comprising a source and a drain, and on the surface of the gate insulation layer comprising a storage capacitor line and a data line. The storage capacitor line has an extending portion parallel to a scan line. The pixel electrode overlaps parts of the scan line, parts of the data line, parts of the storage capacitor line, and parts of the extending portion. A method for manufacturing the array substrate is also provided.Type: GrantFiled: April 8, 2008Date of Patent: February 14, 2012Assignee: Au Optronics Corp.Inventor: Chun-Huan Chang
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Patent number: 8114765Abstract: The embodiments generally relate to methods of making semiconductor devices, and more particularly, to methods for making semiconductor pillar structures and increasing array feature pattern density using selective or directional gap fill. The technique has application to a variety of materials and can be applied to making monolithic two or three-dimensional memory arrays.Type: GrantFiled: April 5, 2010Date of Patent: February 14, 2012Assignee: SanDisk 3D LLCInventors: Huiwen Xu, Yung-Tin Chen, Steven J. Radigan
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Publication number: 20120032293Abstract: A word line driver includes an active area having a length that extends in a first direction over a semiconductor substrate. A plurality of fingers formed over an upper surface of the active area. Each of the plurality of fingers has a length that extends in a second direction and forms a MOS transistor with a portion of the active area. A first dummy structure is disposed between an outer one of the plurality of fingers and an edge of the semiconductor substrate. The first dummy structure includes a portion that is at least partially disposed over a portion of the active area.Type: ApplicationFiled: August 6, 2010Publication date: February 9, 2012Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yen-Huei CHEN, Jung-Hsuan CHEN, Shao-Yu CHOU, Hung-Jen LIAO, Li-Chun TIEN
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Patent number: 8105897Abstract: A method for fabricating flash memory devices, e.g., NAND, NOR, is provided. The method includes providing a semiconductor substrate. The method includes forming a second polysilicon layer overlying a plurality of floating gate structures to cause formation of an upper surface provided on the second polysilicon layer. The upper surface has a first recessed region and a second recessed region. The method includes depositing a photo resist material overlying the upper surface to fill the first recessed region and the second recessed region to form a second upper surface region and cover a first elevated region, a second elevated region, and a third elevated region. The method subjects the second upper surface region to a chemical mechanical polishing process to remove the first elevated region, the second elevated region, and the third elevated region to cause formation of a substantially planarized second polysilicon layer free from the fill material.Type: GrantFiled: December 24, 2009Date of Patent: January 31, 2012Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Lily Jiang, Meng Feng Tsai, Jiang Guang Chang
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Patent number: 8105956Abstract: A method of forming silicon oxide includes depositing a silicon nitride-comprising material over a substrate. The silicon nitride-comprising material has an elevationally outermost silicon nitride-comprising surface. Such surface is treated with a fluid that is at least 99.5% H2O by volume. A polysilazane-comprising spin-on dielectric material is formed onto the H2O-treated silicon nitride-comprising surface. The polysilazane-comprising spin-on dielectric material is oxidized to form silicon oxide. Other implementations are contemplated.Type: GrantFiled: October 20, 2009Date of Patent: January 31, 2012Assignee: Micron Technology, Inc.Inventors: Yunjun Ho, Brent Gilgen
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Patent number: 8105898Abstract: A method for fabricating flash memory devices, e.g., NAND, NOR, is provided. The method includes providing a semiconductor substrate. The method includes forming a second polysilicon layer overlying a plurality of floating gate structures to cause formation of an upper surface provided on the second polysilicon layer. The upper surface has a first recessed region and a second recessed region. The method includes depositing a dielectric material overlying the upper surface to fill the first recessed region and the second recessed region to form a second upper surface region and cover a first elevated region, a second elevated region, and a third elevated region. The method subjects the second upper surface region to a chemical mechanical polishing process to remove the first elevated region, the second elevated region, and the third elevated region to cause formation of a substantially planarized second polysilicon layer free from the fill material.Type: GrantFiled: December 24, 2009Date of Patent: January 31, 2012Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Lily Jiang, Meng Feng Tsai, Jian Guang Chang
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Patent number: 8106455Abstract: Multiple types of gate stacks are formed on a doped semiconductor well. A high dielectric constant (high-k) gate dielectric is formed on the doped semiconductor well. A metal gate layer is formed in one device area, while the high-k gate dielectric is exposed in other device areas. Threshold voltage adjustment oxide layers having different thicknesses are formed in the other device areas. A conductive gate material layer is then formed over the threshold voltage adjustment oxide layers. One type of field effect transistors includes a gate dielectric including a high-k gate dielectric portion. Other types of field effect transistors include a gate dielectric including a high-k gate dielectric portion and a first threshold voltage adjustment oxide portions having different thicknesses. Field effect transistors having different threshold voltages are provided by employing different gate dielectric stacks and doped semiconductor wells having the same dopant concentration.Type: GrantFiled: April 30, 2009Date of Patent: January 31, 2012Assignee: International Business Machines CorporationInventors: Brian J. Greene, Michael P. Chudzik, Shu-Jen Han, William K. Henson, Yue Liang, Edward P. Maciejewski, Myung-Hee Na, Edward J. Nowak, Xiaojun Yu
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Patent number: 8105899Abstract: A method for fabricating flash memory devices, e.g., NAND, NOR, is provided. The method includes providing a semiconductor substrate. The method includes forming a second polysilicon layer overlying a plurality of floating gate structures to cause formation of an upper surface provided on the second polysilicon layer. The upper surface has a first recessed region and a second recessed region. The method includes depositing a dielectric material overlying the upper surface to fill the first recessed region and the second recessed region to form a second upper surface region and cover a first elevated region, a second elevated region, and a third elevated region.Type: GrantFiled: December 24, 2009Date of Patent: January 31, 2012Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Lily Jiang, Meng Feng Tsai, Jian Guang Chang
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Patent number: 8106450Abstract: A semiconductor device having a saddle fin gate and a method for manufacturing the same are presented. The semiconductor device includes a semiconductor substrate, an isolation structure, and gates. The semiconductor substrate is defined with first grooves in gate forming areas. The isolation structure is formed in the semiconductor substrate and is defined with second grooves which expose front and rear surfaces of the gate forming areas. The gates are formed within the first grooves in the gate forming areas. Gates are also formed in the second grooves of the isolation structure to cover the exposed front and rear surfaces of the gate forming areas. The second grooves are wider at the lower portions that at the upper portions.Type: GrantFiled: May 18, 2009Date of Patent: January 31, 2012Assignee: Hynix Semiconductor Inc.Inventor: Seung Joo Baek
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Patent number: 8102030Abstract: A semiconductor device includes: a semiconductor substrate having a p-MOS region; an element isolation region formed in a surface portion of the semiconductor substrate and defining p-MOS active regions in the p-MOS region; a p-MOS gate electrode structure formed above the semiconductor substrate, traversing the p-MOS active region and defining a p-MOS channel region under the p-MOS gate electrode structure; a compressive stress film selectively formed above the p-MOS active region and covering the p-MOS gate electrode structure; and a stress released region selectively formed above the element isolation region in the p-MOS region and releasing stress in the compressive stress film, wherein a compressive stress along the gate length direction and a tensile stress along the gate width direction are exerted on the p-MOS channel region. The performance of the semiconductor device can be improved by controlling the stress separately for the active region and element isolation region.Type: GrantFiled: April 6, 2010Date of Patent: January 24, 2012Assignee: Fujitsu Semiconductor LimitedInventor: Shigeo Satoh
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Patent number: 8097508Abstract: A method for fabricating flash memory devices, e.g., NAND, NOR, is provided. The method includes providing a semiconductor substrate. The method includes forming a second polysilicon layer overlying a plurality of floating gate structures to cause formation of an upper surface provided on the second polysilicon layer. The upper surface has a first recessed region and a second recessed region. The method includes depositing a doped dielectric material overlying the upper surface to fill the first recessed region and the second recessed region to form a second upper surface region and cover a first elevated region, a second elevated region, and a third elevated region. The method subjects the second upper surface region to a chemical mechanical polishing process to remove the first elevated region, the second elevated region, and the third elevated region to cause formation of a substantially planarized second polysilicon layer free from the fill material.Type: GrantFiled: December 24, 2009Date of Patent: January 17, 2012Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Lily Jiang, Meng Feng Tsai, Jian Guang Chang
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Publication number: 20120001264Abstract: Provided according to embodiments of the present invention are methods of fabricating semiconductor devices using an etchant. In some embodiments, the etchant may be highly selective and may act to reduce interference between wordlines in the semiconductor device. In some embodiments of the invention, provided are methods of fabricating a semiconductor device that include forming a plurality of gate patterns on a substrate; forming first insulation layers between the gate patterns; wet-etching the first insulation layers to form first insulation layer residues; and forming air gaps between the plurality of gate patterns. Related etchant solutions and semiconductor devices are also provided.Type: ApplicationFiled: June 30, 2011Publication date: January 5, 2012Inventors: Hong-suk Kim, Jin-gyun Kim, Hun-Hyeong Lim, Ki-hyun Hwang, Jae-Young Ahn, Jun-kyu Yang
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Patent number: 8088680Abstract: A cell layout of a semiconductor device includes a diffusion level layout including a plurality of diffusion region layout shapes, including p-type and n-type diffusion regions. The cell layout also includes a gate electrode level layout defined to include linear-shaped layout features placed to extend in only a first parallel direction. Adjacent linear-shaped layout features that share a common line of extent in the first parallel direction are separated from each other by an end-to-end spacing that is substantially equal across the gate electrode level layout and that is minimized to an extent allowed by a semiconductor device manufacturing capability. Linear-shaped layout features within the gate electrode level layout extend over one or more of the p-type and/or n-type diffusion regions to form PMOS and NMOS transistor devices. A number of the PMOS transistor devices is equal to a number of the NMOS transistor devices in the cell.Type: GrantFiled: October 1, 2009Date of Patent: January 3, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8088681Abstract: A cell layout of a semiconductor device includes a diffusion level layout including a plurality of diffusion region layout shapes, including p-type and n-type diffusion regions separated by a central inactive region. The cell layout also includes a gate electrode level layout for the entire cell defined to include linear-shaped layout features placed to extend in only a first parallel direction. Adjacent linear-shaped layout features that share a common line of extent in the first parallel direction are separated from each other by an end-to-end spacing that is substantially equal and minimized across the gate electrode level layout. Linear-shaped layout features within the gate electrode level layout extend over one or more of the p-type and/or n-type diffusion regions to form PMOS and NMOS transistor devices. A number of the PMOS transistor devices is equal to a number of the NMOS transistor devices in the cell.Type: GrantFiled: October 1, 2009Date of Patent: January 3, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8088682Abstract: A cell of a semiconductor device includes a diffusion level including a plurality of diffusion regions separated by inactive regions. The cell includes a gate electrode level including conductive features defined to extend in only a first parallel direction. Adjacent conductive features that share a common line of extent in the first parallel direction are fabricated from respective originating layout features that are separated from each other by an end-to-end spacing having a size that is substantially equal and minimized across the gate electrode level region. Some of the conductive features form respective PMOS and/or NMOS transistor devices. A number of the PMOS transistor devices is equal to a number of the NMOS transistor devices in the cell. A width of the conductive features within a five wavelength photolithographic interaction radius is less than a wavelength of light of 193 nanometers as used in a photolithography process for their fabrication.Type: GrantFiled: October 1, 2009Date of Patent: January 3, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Patent number: 8088679Abstract: A restricted layout region includes a diffusion level layout that includes a number of diffusion region layout shapes to be formed within a portion of a substrate of a semiconductor device. The diffusion region layout shapes define at least one p-type diffusion region and at least one n-type diffusion region. A gate electrode level layout is defined above the portion of the substrate to include linear-shaped layout features placed to extend in only a first parallel direction. Adjacent linear-shaped layout features that share a common line of extent in the first parallel direction are separated from each other by an end-to-end spacing that is substantially equal across the gate electrode level layout and that is minimized to an extent allowed by a semiconductor device manufacturing capability. A number of PMOS transistor devices is equal to a number of NMOS transistor devices in the restricted layout region.Type: GrantFiled: September 18, 2009Date of Patent: January 3, 2012Assignee: Tela Innovations, Inc.Inventors: Scott T. Becker, Michael C. Smayling
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Publication number: 20110318914Abstract: A method of fabricating a semiconductor device, in which an interference effect between word lines is substantially reduced or eliminated, includes forming a plurality of gate patterns on a substrate; forming a first insulating layer between the gate patterns, the first insulating layer filling a region between the gate patterns; etching the first insulating layer to remove a portion of the first insulating layer to a predetermined depth; and forming a second insulating layer on the gate patterns and the first insulating layer. A low-dielectric-constant material is formed between the gate patterns.Type: ApplicationFiled: June 24, 2011Publication date: December 29, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-lack Choi, Chang-hyun Cho, Seung-pil Chung, Hyun-seok Jang, Du-heon Song, Jung-dal Choi
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Patent number: 8084347Abstract: A method of making a semiconductor device includes forming at least one layer over a substrate, forming at least two spaced apart features of imagable material over the at least one layer, forming sidewall spacers on the at least two features and filling a space between a first sidewall spacer on a first feature and a second sidewall spacer on a second feature with a filler feature. The method also includes selectively removing the sidewall spacers to leave the first feature, the filler feature and the second feature spaced apart from each other, and etching the at least one layer using the first feature, the filler feature and the second feature as a mask.Type: GrantFiled: December 31, 2008Date of Patent: December 27, 2011Assignee: SanDisk 3D LLCInventors: Yung-Tin Chen, Steven J. Radigan
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Patent number: 8084324Abstract: A nonvolatile semiconductor memory includes a memory cell transistor including a first floating gate electrode layer formed on a first tunneling insulating film, a first inter-gate insulating film, a first and a second control gate electrode layer, and a first metallic silicide film; a high voltage transistor including a high voltage gate electrode layer formed on the high voltage gate insulating film, a second inter-gate insulating film having an aperture, a third and a fourth control gate electrode layer, and a second metallic silicide film; a low voltage transistor including a second floating gate electrode layer formed on the second tunneling insulating film, a third inter-gate insulating film having an aperture, a fifth and a sixth control gate electrode layer, and a third metallic silicide film; and a liner insulating film directly disposed on a first source and drain region of the memory cell transistor, a second source and drain region of the low voltage transistor, and a third source and drain regionType: GrantFiled: March 9, 2010Date of Patent: December 27, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Kikuko Sugimae, Masayuki Ichige, Fumitaka Arai, Yasuhiko Matsunaga, Atsuhiro Sato
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Publication number: 20110312171Abstract: Methods include forming a charge storage transistor gate stack over semiconductive material. One such stack includes a tunnel dielectric, charge storage material over the tunnel dielectric, a high-k dielectric over the charge storage material, and conductive control gate material over the high-k dielectric. The stack is etched at least to the tunnel dielectric to form a plurality of charge storage transistor gate lines over the semiconductive material. Individual of the gate lines have laterally projecting feet which include the high-k dielectric. After etching the stack to form the gate lines, ions are implanted into an implant region which includes the high-k dielectric of the laterally projecting feet. The ions are chemically inert to the high-k dielectric. The ion implanted high-k dielectric of the projecting feet is etched selectively relative to portions of the high-k dielectric outside of the implant region.Type: ApplicationFiled: June 22, 2010Publication date: December 22, 2011Inventors: Chan Lim, Jennifer Lequn Liu, Brian Dolan, Saurabh Keshav, Hongbin Zhu
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Publication number: 20110294286Abstract: A method for fabricating an integrated circuit device is disclosed. The method includes providing a substrate; forming a semiconductor feature over the substrate; forming a first photoresist layer over the substrate; performing a lithography process on the first photoresist layer, such the first photoresist layer includes an opening therein that exposes the semiconductor feature; performing a stabilization process on the first photoresist layer; forming a second photoresist layer over the first photoresist layer, wherein the second photoresist layer fills the opening; and etching back the first and second photoresist layers until the semiconductor feature is exposed.Type: ApplicationFiled: May 28, 2010Publication date: December 1, 2011Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chi-Cheng Hung, Yung-Sung Yen, Chun-Kuang Chen
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Patent number: 8063453Abstract: A gate of a semiconductor device includes a substrate, and a polysilicon layer over the substrate, wherein the polysilicon layer is doped with first conductive type impurities having a concentration that decreases when receding from the substrate and counter-doped with second conductive type impurities having a concentration that increases when receding from the substrate.Type: GrantFiled: December 30, 2008Date of Patent: November 22, 2011Assignee: Hynix Semiconductor Inc.Inventors: Jae-Geun Oh, Jin-Ku Lee, Min-Ae Ju
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Patent number: 8062939Abstract: A semiconductor storage element includes: a semiconductor layer constituted of a line pattern with a predetermined width formed on a substrate; a quantum dot forming an electric charge storage layer formed on the semiconductor layer through a first insulating film serving as a tunnel insulating film; an impurity diffusion layer formed in a surface layer of the semiconductor layer so as to sandwich the quantum dot therebetween; and a control electrode formed on the quantum dot through a second insulating film.Type: GrantFiled: February 18, 2011Date of Patent: November 22, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Kenji Kawabata