With Impurity Other Than Hydrogen To Passivate Dangling Bonds (e.g., Halide) Patents (Class 257/62)
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Patent number: 10427929Abstract: A cap wafer bonded to a device wafer by a metal polysilicon germanium material to form a sealed chamber around a semiconductor device is provided. On the cap wafer, a stack of silicon (Si), polycrystalline silicon germanium (SiGe), and polycrystalline germanium (Ge) is formed. This stack of material layers is formed to intentionally have a roughened germanium surface. A metal structure is formed on a second wafer, having an anti-stiction coating layer on the surface of the metal structure. A metal silicon germanium bonding material is formed by placing the metal structure and germanium structure in contact and applying heat and pressure. The roughened germanium layer penetrates the anti-stiction coating layer upon application of the pressure. The germanium that penetrates to the metal is free of interfacial anti-stiction coating and allows for eutectic bond formation upon application of heat.Type: GrantFiled: August 3, 2018Date of Patent: October 1, 2019Assignee: NXP USA, Inc.Inventors: Ruben B. Montez, Colin Bryant Stevens
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Patent number: 9969609Abstract: The present disclosure provides a method for forming micro-electro-mechanical-system (MEMS) devices. The method includes providing a plurality of wafers; bonding a front surface of at least a first wafer onto a front surface of a second wafer; trimming an edge of and thinning the at least first wafer after the at least first wafer is bonded onto the second wafer; and bonding a first supporting plate onto a front surface of a third wafer. The method further includes thinning a back surface of the third wafer and forming alignment marks on a thinned back surface of the third wafer; bonding a second supporting plate onto the thinned back surface of the third wafer according to the alignment marks; and removing the first supporting plate and bonding the at least first wafer onto the third wafer according to the alignment marks to form a stack structure.Type: GrantFiled: October 18, 2016Date of Patent: May 15, 2018Assignee: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATIONInventor: Wei Xu
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Patent number: 9751752Abstract: A method of bonding of germanium to aluminum between two substrates to create a robust electrical and mechanical contact is disclosed. An aluminum-germanium bond has the following unique combination of attributes: (1) it can form a hermetic seal; (2) it can be used to create an electrically conductive path between two substrates; (3) it can be patterned so that this conduction path is localized; (4) the bond can be made with the aluminum that is available as standard foundry CMOS process. This has the significant advantage of allowing for wafer-level bonding or packaging without the addition of any additional process layers to the CMOS wafer.Type: GrantFiled: November 30, 2016Date of Patent: September 5, 2017Assignee: INVENSENSE, INC.Inventors: Steven S. Nasiri, Anthony F. Flannery, Jr.
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Patent number: 9035432Abstract: A method for producing a component having a semiconductor substrate with through-hole plating is provided, the through-plating being surrounded by a recess, and the semiconductor substrate having a first layer on one side, which covers the recess on the first side. The semiconductor substrate has a second layer on a second side, which covers the recess on the second side, and the through-hole plating is surrounded by a ring structure which is produced from the semiconductor substrate. The recess surrounding the ring structure is produced in the same process step or at the same time as the recess for the through-hole plating.Type: GrantFiled: June 11, 2013Date of Patent: May 19, 2015Assignee: ROBERT BOSCH GMBHInventors: Jochen Reinmuth, Heribert Weber, Timo Schary, Yvonne Bergmann
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Patent number: 8993088Abstract: Methods for fabricating sublithographic, nanoscale microstructures in line arrays utilizing self-assembling block copolymers, and films and devices formed from these methods are provided. Semiconductor structures may include self-assembled block copolymer materials in the form of lines of half-cylinders of a minority block matrix of a majority block of the block copolymer. The lines of half-cylinders may be within trenches in the semiconductor structures.Type: GrantFiled: June 27, 2013Date of Patent: March 31, 2015Assignee: Micron Technology, Inc.Inventors: Dan B. Millward, Donald L. Westmoreland
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Patent number: 8945700Abstract: Methods for fabricating sublithographic, nanoscale microstructures in line arrays utilizing self-assembling block copolymers, and films and devices formed from these methods are provided. Semiconductor structures may include self-assembled block copolymer materials in the form of lines of half-cylinders of a minority block matrix of a majority block of the block copolymer. The lines of half-cylinders may be within trenches in the semiconductor structures.Type: GrantFiled: June 27, 2013Date of Patent: February 3, 2015Assignee: Micron Technology, Inc.Inventors: Dan B. Millward, Donald L. Westmoreland
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Patent number: 8889529Abstract: Heterojunction bipolar transistors are provided that include at least one contact (e.g., collector, and/or emitter, and/or base) formed by a heterojunction between a crystalline semiconductor material and a doped non-crystalline semiconductor material layer. A highly doped epitaxial semiconductor layer comprising a highly doped hydrogenated crystalline semiconductor material layer portion is present at the heterojunction between the crystalline semiconductor material and the doped non-crystalline semiconductor material layer. Minority carriers within the highly doped epitaxial semiconductor layer have a diffusion length that is larger than a thickness of the highly doped epitaxial semiconductor layer.Type: GrantFiled: March 15, 2013Date of Patent: November 18, 2014Assignee: International Business Machines CorporationInventors: Bahman Hekmatshoar-Tabari, Tak H. Ning, Devendra K. Sadana, Ghavam G. Shahidi, Davood Shahrjerdi
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Patent number: 8878176Abstract: A thin-film transistor with a fluorinated channel and fluorinated source and drain regions and methods of fabrication are provided. The thin-film transistor includes: a substrate; a semiconductor active layer of fluorine-doped metal-oxide formed on the substrate; fluorine-doped source and drain regions disposed adjacent to the semiconductor active layer; a gate electrode disposed over the semiconductor active layer, configured to induce a continuous conduction channel between the source and drain regions; and a gate dielectric material separating the gate electrode and the channel.Type: GrantFiled: August 10, 2012Date of Patent: November 4, 2014Assignee: The Hong Kong University of Science and TechnologyInventors: Man Wong, Hoi Sing Kwok, Zhi Ye
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Patent number: 8664115Abstract: A passivation layer is formed on inlaid Cu for protection against oxidation and removal during subsequent removal of an overlying metal hardmask. Embodiments include treating an exposed upper surface of inlaid Cu with hydrofluoric acid and a copper complexing agent, such as benzene triazole, to form a passivation monolayer of a copper complex, etching to remove the metal hardmask, removing the passivation layer by heating to at least 300° C., and forming a barrier layer on the exposed upper surface of the inlaid Cu.Type: GrantFiled: June 10, 2011Date of Patent: March 4, 2014Inventors: Christin Bartsch, Susanne Leppack
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Patent number: 8633585Abstract: A device in accordance with one embodiment comprises component (1) and an encapsulation arrangement (2) for the encapsulation of the component (1) with respect to moisture and/or oxygen, wherein the encapsulation arrangement (2) has a first layer (21) and thereabove a second layer (22) on at least one surface (19) of the component (1), the first layer (21) and the second layer (22) each comprise an inorganic material, and the second layer (22) is arranged directly on the first layer (21).Type: GrantFiled: January 29, 2009Date of Patent: January 21, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Christian Schmid, Tilman Schlenker, Heribert Zull, Ralph Paetzold, Markus Klein, Karsten Heuser
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Patent number: 8575590Abstract: According to one embodiment, there is provided a nonvolatile semiconductor memory device including a first interconnection layer, memory cell modules each of which is formed by laminating a non-ohmic element layer with an MIM structure having an insulating film sandwiched between metal films and a variable resistance element layer, and a second interconnection layer formed on the memory cell modules, the insulating film of the non-ohmic element layer includes plural layers whose electron barriers and dielectric constants are different, or contains impurity atoms that form defect levels in the insulating film or contains semiconductor or metal dots. The nonvolatile semiconductor memory device using non-ohmic elements and variable resistance elements in which memory cells can be miniaturized and formed at low temperatures is realized by utilizing the above structures.Type: GrantFiled: March 2, 2011Date of Patent: November 5, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Koichi Muraoka, Hiroyuki Nagashima
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Patent number: 8569760Abstract: A thin film transistor TFT, including a substrate, a gate electrode on the substrate, a gate insulating layer on the gate electrode, an active layer on the gate insulating layer, the active layer corresponding to the gate electrode and including a channel region, source and drain electrodes contacting the active layer, the source and drain electrodes being separate from each other, and an ohmic contact layer between the active layer and at least one of the source and drain electrodes, the ohmic contact layer including an oxide semiconductor material.Type: GrantFiled: October 27, 2010Date of Patent: October 29, 2013Assignee: Samsung Display Co., Ltd.Inventor: Chun-Gi You
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Patent number: 8507913Abstract: A method of bonding wafers with an aluminum-germanium bond includes forming an aluminum layer on a first wafer, and a germanium layer on a second wafer, and implanting the germanium layer with non-germanium atoms prior to forming a eutectic bond at the aluminum-germanium interface. The wafers are aligned to a desired orientation and the two layers are held in contact with one another. The aluminum-germanium interface is heated to a temperature that allows the interface of the layers to melt, thus forming a bond. A portions of the germanium layer may be removed from the second wafer to allow infrared radiation to pass through the second wafer to facilitate wafer alignment.Type: GrantFiled: September 29, 2010Date of Patent: August 13, 2013Assignee: Analog Devices, Inc.Inventors: Thomas Kieran Nunan, Changhan Yun, Christine H. Tsau
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Patent number: 8455322Abstract: Disclosed is an improved semiconductor structure (e.g., a silicon germanium (SiGe) hetero-junction bipolar transistor) having a narrow essentially interstitial-free SIC pedestal with minimal overlap of the extrinsic base. Also, disclosed is a method of forming the transistor which uses laser annealing, as opposed to rapid thermal annealing, of the SIC pedestal to produce both a narrow SIC pedestal and an essentially interstitial-free collector. Thus, the resulting SiGe HBT transistor can be produced with narrower base and collector space-charge regions than can be achieved with conventional technology.Type: GrantFiled: March 8, 2010Date of Patent: June 4, 2013Assignee: International Business Machines CorporationInventors: Oleg Gluschenkov, Rajendran Krishnasamy, Kathryn T. Schonenberg
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Patent number: 8410485Abstract: A pixel structure including a scan line, a data line intersecting the scan line, a first gate, a second gate, a third gate, a semiconductor layer, a source, a first drain, a second drain, a first pixel electrode, and a second pixel electrode is provided. The dataline and the scan line are interlaced disposed. The semiconductor layer is disposed on the scan line to define the first gate and the second gate. The source is directly connected to the data line and located between the first gate and the second gate. The first gate is located between the first drain and the source. The second gate is located between the second drain and the source. The third gate is electrically connected to the scan line. The first pixel electrode and the second pixel electrode are respectively electrically connected to the first drain and the second drain.Type: GrantFiled: April 6, 2011Date of Patent: April 2, 2013Assignee: Wintek CorporationInventors: Chin-Chang Liu, Chien-Ting Chan, Kuo-Chang Su
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Patent number: 8324623Abstract: A semiconductor chip comprising a capacitor capable of effectively controlling the voltage drop of an LSI is provided. A semiconductor substrate is provided with an element electrode having at least its surface constituted of an aluminum electrode. The surface of the aluminum electrode is roughened. An oxide film is provided on the aluminum electrode. A conductive film is provided on the oxide film. The aluminum electrode, oxide film and conductive film form a capacitor.Type: GrantFiled: April 5, 2011Date of Patent: December 4, 2012Assignee: Panasonic CorporationInventors: Koichi Hirano, Tetsuyoshi Ogura, Seiichi Nakatani
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Publication number: 20120267632Abstract: Methods, devices, and systems are provided for a select device that can include a semiconductive stack of at least one semiconductive material formed on a first electrode, where the semiconductive stack can have a thickness of about 700 angstroms (?) or less. Each of the at least one semiconductive material can have an associated band gap of about 4 electron volts (eV) or less and a second electrode can be formed on the semiconductive stack.Type: ApplicationFiled: April 19, 2011Publication date: October 25, 2012Applicant: MICRON TECHNOLOGY, INC.Inventors: D.V. Nirmal Ramaswamy, Gurtej S. Sandhu
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Patent number: 8237166Abstract: An active matrix display comprising a light control device and a field effect transistor for driving the light control device. The active layer of the field effect transistor comprises an amorphous.Type: GrantFiled: August 2, 2010Date of Patent: August 7, 2012Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Hideya Kumomi, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Publication number: 20120193632Abstract: Provided is a silicon structure with a three-dimensionally complex shape. Further provided is a simple and easy method for manufacturing the silicon structure with the use of a phenomenon in which an ordered pattern is formed spontaneously to form a nano-structure. Plasma treatment under hydrogen atmosphere is performed on an amorphous silicon layer and the following processes are performed at the same time: a reaction process for growing microcrystalline silicon on a surface of the silicon layer and a reaction process for etching the amorphous silicon layer which is exposed, so that a nano-structure including an upper structure in a microcrystalline state and a lower structure in an amorphous state, over the silicon layer is formed; accordingly, a silicon structure with a three-dimensionally complex shape can be provided.Type: ApplicationFiled: January 24, 2012Publication date: August 2, 2012Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Satoshi TORIUMI
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Patent number: 8212252Abstract: An object of the present invention is to provide a new light-emitting device with the use of an amorphous oxide. The light-emitting device has a light-emitting layer existing between first and second electrodes and a field effect transistor, of which the active layer is an amorphous.Type: GrantFiled: September 15, 2010Date of Patent: July 3, 2012Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Tohru Den, Tatsuya Iwasaki, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Patent number: 8203146Abstract: Semiconductor devices and circuits with use of transparent oxide film are provided. The semiconductor device having a P-type region and an N-type region, wherein amorphous oxides with electron carrier concentration less than 1018/cm3 is used for the N-type region.Type: GrantFiled: September 15, 2010Date of Patent: June 19, 2012Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Katsumi Abe, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Patent number: 8168974Abstract: A novel field-effect transistor is provided which employs an amorphous oxide. In an embodiment of the present invention, the transistor comprises an amorphous oxide layer containing electron carrier at a concentration less than 1×10?18/cm3, and the gate-insulating layer is comprised of a first layer being in contact with the amorphous oxide and a second layer different from the first layer.Type: GrantFiled: September 15, 2010Date of Patent: May 1, 2012Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Masafumi Sano, Katsumi Nakagawa, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Publication number: 20120074417Abstract: A method of bonding wafers with an aluminum-germanium bond includes forming an aluminum layer on a first wafer, and a germanium layer on a second wafer, and implanting the germanium layer with non-germanium atoms prior to forming a eutectic bond at the aluminum-germanium interface. The wafers are aligned to a desired orientation and the two layers are held in contact with one another. The aluminum-germanium interface is heated to a temperature that allows the interface of the layers to melt, thus forming a bond. A portions of the germanium layer may be removed from the second wafer to allow infrared radiation to pass through the second wafer to facilitate wafer alignment.Type: ApplicationFiled: September 29, 2010Publication date: March 29, 2012Applicant: ANALOG DEVICES, INC.Inventors: Thomas Kieran Nunan, Changhan Yun, Christine H. Tsau
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Patent number: 8034671Abstract: A crystallizing method for forming a poly-Si film is described as follows. First, forming an activated layer on a substrate, and the molecule structure of the activated layer includes carbon, hydrogen, oxygen and silicon. And then, forming an amorphous silicon film on the activated layer. Finally, performing an annealing process to crystallize the amorphous silicon film and transform it into a poly-Si film.Type: GrantFiled: December 22, 2005Date of Patent: October 11, 2011Assignee: Au Optronics Corp.Inventors: Chia-Tien Peng, Chih-Hsiung Chang
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Patent number: 7968891Abstract: Disclosed is an organic light emitting display. In the organic light emitting display, a substrate is divided into a display region, in which an image is displayed, and a non-display region surrounding the display region. The organic light emitting display includes a plurality of pixels provided on the display region. At least one thin film transistor is formed on the non-display region. The display region includes a first electrode connected to the thin film transistor, an organic light emitting layer formed on the first electrode, and a second electrode formed on the organic light emitting layer to apply voltage to the organic light emitting layer with the first electrode. A light blocking layer having an opening formed below the semiconductor layer is formed on the non-display region.Type: GrantFiled: March 31, 2009Date of Patent: June 28, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Yul-Kyu Lee, Chun-Gi You, Sun Park, Jong-Hyun Park, Soo-Hyun Kim, Hee-Sang Park
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Publication number: 20110101363Abstract: A separation layer containing a halogen element is formed over a glass substrate by a plasma CVD method; a semiconductor element is formed over the separation layer; and separation is then performed inside the separation layer or at its interface, so that the large-area glass substrate and the semiconductor element are detached from each other. In order to perform detachment at the interface between the glass substrate and the separation layer, the separation layer may have concentration gradient of the halogen element, and the halogen element is contained more near the interface between the separation layer and the glass substrate than in the other areas.Type: ApplicationFiled: December 28, 2010Publication date: May 5, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Satoshi TORIUMI
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Patent number: 7923350Abstract: A method of manufacturing a semiconductor device. The method includes providing a wafer having a first face and a second face opposite the first face, selectively doping the wafer via the first face to selectively form etch stop regions in the wafer and etching the wafer at the second face to the etch stop regions.Type: GrantFiled: September 9, 2008Date of Patent: April 12, 2011Assignee: Infineon Technologies AGInventors: Joachim Mahler, Edward Fuergut, Werner Kroeninger
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Patent number: 7872259Abstract: An object of the present invention is to provide a new light-emitting device with the use of an amorphous oxide. The light-emitting device has a light-emitting layer existing between first and second electrodes and a field effect transistor, of which the active layer is an amorphous.Type: GrantFiled: November 9, 2005Date of Patent: January 18, 2011Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Tohru Den, Tatsuya Iwasaki, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Patent number: 7868326Abstract: A novel field-effect transistor is provided which employs an amorphous oxide. In an embodiment of the present invention, the transistor comprises an amorphous oxide layer containing electron carrier at a concentration less than 1×10?18/cm3, and the gate-insulating layer is comprised of a first layer being in contact with the amorphous oxide and a second layer different from the first layer.Type: GrantFiled: November 9, 2005Date of Patent: January 11, 2011Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Masafumi Sano, Katsumi Nakagawa, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Patent number: 7863611Abstract: Semiconductor devices and circuits with use of transparent oxide film are provided. The semiconductor device having a P-type region and an N-type region, wherein amorphous oxides with electron carrier concentration less than 1018/cm3 is used for the N-type region.Type: GrantFiled: November 9, 2005Date of Patent: January 4, 2011Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Katsumi Abe, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Patent number: 7863598Abstract: A nonvolatile memory device comprises memory cells, each including a variable resistor element for storing data in accordance with a change in electrical resistance due to application of electrical stress, and a thermal diffusion barrier on a thermal diffusion path, wherein the thermal diffusion barrier is capable of suppressing a change in resistance of the variable resistor element due to heat diffusion from one of two adjacent memory cells separated by an electrical insulator from each other where heat is generated by applying the electrical stress for changing the electrical resistance of the variable resistor element to the other memory cell via the thermal diffusion path including an electrically conductive wiring material higher in thermal conductivity than that of the electrical insulator.Type: GrantFiled: January 8, 2007Date of Patent: January 4, 2011Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Sugita, Yukio Tamai
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Patent number: 7791072Abstract: An active matrix display comprising a light control device and a field effect transistor for driving the light control device. The active layer of the field effect transistor comprises an amorphous.Type: GrantFiled: November 9, 2005Date of Patent: September 7, 2010Assignees: Canon Kabushiki Kaisha, Tokyo Institute of TechnologyInventors: Hideya Kumomi, Hideo Hosono, Toshio Kamiya, Kenji Nomura
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Patent number: 7732334Abstract: It is an object of the present invention to provide a method for manufacturing a substrate having film patterns such as an insulating film, a semiconductor film, and a conductive film in simple processes. It is another object of the invention to provide a method for manufacturing a semiconductor device with high throughput and high yield at low cost.Type: GrantFiled: August 3, 2005Date of Patent: June 8, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masafumi Morisue, Gen Fujii
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Patent number: 7723142Abstract: A method of producing a GaN crystal is directed to growing a GaN crystal on a GaN seed crystal substrate. The method includes the steps of preparing a GaN seed crystal substrate including a first dopant such that the thermal expansion coefficient of the GaN seed crystal substrate becomes greater than that of the GaN crystal, and growing the GaN crystal to a thickness of at least 1 mm on the GaN seed crystal substrate. Accordingly, there can be provided a method of producing a GaN crystal that can suppress generation of a crack and grow a thick GaN crystal, and a GaN crystal substrate.Type: GrantFiled: May 30, 2008Date of Patent: May 25, 2010Assignee: Sumitomo Electric Industries, Ltd.Inventors: Naoki Matsumoto, Fumitaka Sato, Seiji Nakahata, Takuji Okahisa, Koji Uematsu
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Patent number: 7582903Abstract: A thin film transistor array panel according to the present invention includes: an insulating substrate; a gate wire formed on the insulating substrate and including a plurality of gate portions and a gate connection connecting the gate portions; a data wire insulated from the gate wire and intersecting the date wire; a thin film transistor connected to the gate wire and the data wire; and a pixel electrode connected to the thin film transitor.Type: GrantFiled: March 4, 2003Date of Patent: September 1, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Mun-Pyo Hong, Yong-Uk Lee, Bo-Sung Kim
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Patent number: 7531739Abstract: A method of manufacturing a thermoelectric module is provided. The method includes mounting a thermoelectric material to a substrate such that a portion of the thermoelectric material covers a removable pattern. The thermoelectric material is then segmented and the removable pattern is removed. The portions of the thermoelectric material which were covering the removable pattern are also removed, leaving the portions of the thermoelectric material not covering the removable pattern attached to the substrate.Type: GrantFiled: October 15, 2004Date of Patent: May 12, 2009Assignee: Marlow Industries, Inc.Inventor: Joshua E. Moczygemba
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Patent number: 7405474Abstract: In one embodiment, a device is packaged using a low-cost thermally enhanced ball grid array (LCTE-BGA) package. The device may include a die with its backside mounted to the bottom side of a multi-layer packaging substrate. Thermal vias may be formed through the substrate to allow heat to be conducted away from the backside of the die to a top most metal layer of the substrate. Thermal balls may be attached to the bottom side of the substrate on the same plane as the die.Type: GrantFiled: October 7, 2005Date of Patent: July 29, 2008Assignee: Cypress Semiconductor CorporationInventor: Brenor L. Brophy
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Patent number: 7208751Abstract: Dummy cells are disposed in alignment with memory cells arranged in rows and columns in a memory array. The memory cell includes a variable resistance element and a select transistor having a collector connected to a substrate region and selecting the variable resistance element in response to a row select signal. Corresponding to a row of memory cells, there is provided a word line connecting to memory cells on corresponding row and transmitting the row select signal, and a word line shunting line electrically connected at predetermined intervals to each word line. Moreover, corresponding to a row of dummy cells and a column of dummy cells, there is provided substrate shunt lines electrically connected to the substrate region. The voltage distribution in the substrate region is eliminated to achieve stable operating characteristics of the memory cell transistor. In addition, a word line is driven at high speed by a word line shunt structure.Type: GrantFiled: March 18, 2003Date of Patent: April 24, 2007Assignee: Renesas Technology Corp.Inventor: Tsukasa Ooishi
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Patent number: 7196400Abstract: An object is to enhance the orientation ratio of a crystalline semiconductor film obtained by crystallizing an amorphous semiconductor film while using as a substrate a less-heat-resistive material such as glass thereby providing a semiconductor device using a crystalline semiconductor film with high quality equivalent to a single crystal. A first crystalline semiconductor film and a second crystalline semiconductor film are formed overlying a substrate, which integrally structure a crystalline semiconductor layer. The first and second crystalline semiconductor films are polycrystalline bodies aggregated with a plurality of crystal grains. However, the crystal grains are aligned toward a (101)-plane orientation at a ratio of 30 percent or greater, preferably 80 percent or greater.Type: GrantFiled: April 30, 2004Date of Patent: March 27, 2007Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Toru Mitsuki, Kenji Kasahara
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Patent number: 7145175Abstract: According to the invention, a plurality of semiconductor devices which are required to have conformance are formed from crystalline semiconductor films having uniform crystallinity on the same line, and a semiconductor circuit in which variation between semiconductor devices is small can be provided, and a semiconductor integrated circuit having high conformance can be provided. The invention is characterized in that, in a part or whole of thin film transistors which configure an analog circuit such as a current mirror circuit, a differential amplifier circuit, or an operational amplifier, in which high conformance is required for semiconductor devices included therein, channel forming regions have crystalline semiconductor films on the same line. High conformance can be expected for an analog circuit which has the crystalline semiconductor films on the same line formed using the invention as the channel forming regions of the thin film transistors.Type: GrantFiled: September 7, 2004Date of Patent: December 5, 2006Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kiyoshi Kato, Tomoaki Atsumi, Atsuo Isobe
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Patent number: 7119363Abstract: A thin-film transistor is formed on a transparent substrate and has a gate electrode film layer and a source and drain regions, and further has an alignment mark made of one and the same constituent material as a constituent material of at least one of the gate electrode film layer and source and drain regions and formed at one and the same position as the gate electrode film layer or source and drain region.Type: GrantFiled: August 5, 2004Date of Patent: October 10, 2006Assignee: NEC CorporationInventors: Yoshinobu Satou, Katsuhisa Yuda, Hiroshi Tanabe
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Patent number: 7112545Abstract: The surface of a semiconductor material, e.g., gallium arsenide, is passivated by irradiating the surface with ultra-short laser pulses, until a stable passive surface is achieved. The passive surface so prepared is devoid of a superficial oxide layer.Type: GrantFiled: September 11, 2000Date of Patent: September 26, 2006Assignee: The Board of Trustees of the University of ArkansasInventors: Tarak A. Railkar, Ajay P. Malshe, William D. Brown
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Patent number: 7098476Abstract: A novel air-gap-containing interconnect wiring structure is described incorporating a solid low-k dielectric in the via levels, and a composite solid plus air-gap dielectric in the wiring levels. Also provided is a method for forming such an interconnect structure. The method is readily scalable to interconnect structures containing multiple wiring levels, and is compatible with Dual Damascene Back End of the Line (BEOL) processing.Type: GrantFiled: September 24, 2004Date of Patent: August 29, 2006Assignee: International Business Machines CorporationInventors: Katherina E. Babich, Roy Arthur Carruthers, Timothy Joseph Dalton, Alfred Grill, Jeffrey Curtis Hedrick, Christopher Vincent Jahnes, Ebony Lynn Mays, Laurent Perraud, Sampath Purushothaman, Katherine Lynn Saenger
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Patent number: 7034336Abstract: The channel region (11) and the source-drain regions (9, 10) are arranged vertically at a sidewall of a dielectric trench filling (4). On the opposite side, the semiconductor material is bounded by the gate dielectric (18) and the gate electrode (16), which is arranged in a cutout of the semiconductor material. A memory cell array comprises a multiplicity of vertically oriented strip-type semiconductor regions in which source-drain regions are implanted at the top and bottom and a channel region embedded in insulating material on all sides is present in between as a floating body.Type: GrantFiled: August 5, 2004Date of Patent: April 25, 2006Assignees: Infineon Technologies AG, Infineon Technologies Flash GmbH & Co. KGInventor: Josef Willer
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Patent number: 6930326Abstract: According to the invention, a plurality of semiconductor devices which are required to have conformance are formed from crystalline semiconductor films having uniform crystallinity on the same line, and a semiconductor circuit in which variation between semiconductor devices is small can be provided, and a semiconductor integrated circuit having high conformance can be provided. The invention is characterized in that, in a part or whole of thin film transistors which configure an analog circuit such as a current mirror circuit, a differential amplifier circuit, or an operational amplifier, in which high conformance is required for semiconductor devices included therein, channel forming regions have crystalline semiconductor films on the same line. High conformance can be expected for an analog circuit which has the crystalline semiconductor films on the same line formed using the invention as the channel forming regions of the thin film transistors.Type: GrantFiled: March 25, 2003Date of Patent: August 16, 2005Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kiyoshi Kato, Tomoaki Atsumi, Atsuo Isobe
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Patent number: 6873055Abstract: An integrated circuit arrangement includes at least one electrical conductor that, when a current flows through it, produces a magnetic field that acts on at least a further part of the circuit configuration, wherein seen in cross-section, the electrical conductor has at least one recess or depression, or a region of reduced conductivity on the side facing that part, in order to influence the magnetic field that can be produced.Type: GrantFiled: September 6, 2001Date of Patent: March 29, 2005Assignee: Infineon Technologies AGInventor: Joachim Bangert
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Patent number: 6818496Abstract: This invention relates to the field of semiconductor integrated circuits and, particularly to stand-alone and embedded memory chips fabricated on Silicon-on-Insulator (SOI) substrates and devices. Partially depleted (PD) and fully depleted (FD) devices are utilized on the same chip. The invention is a process flow utilizing fully depleted SOI devices in one area of the chip and partially depleted SOI devices in selected other areas of the chip. The choice of fully depleted or partially depleted is solely determined by the circuit application in that specific area of the chip. The invention is able to be utilized in accordance with DRAM processing, and especially embedded DRAMs with their large proportion of associated logic circuitry.Type: GrantFiled: October 7, 2002Date of Patent: November 16, 2004Assignee: Micron Technology, Inc,Inventors: Charles H. Dennison, John K. Zahurak
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Patent number: 6812136Abstract: According to the present invention, when a wiring layer using copper is formed, an interlayer insulation film is formed on a semiconductor substrate having a conductive portion of an element. A contact hole, which is connected to at least the conductive portion, is formed in the interlayer insulation film. A wiring groove is formed in the surface of the interlayer insulation film including a region where the contact hole is formed. A barrier metal having a tungsten carbide film on its surface is formed on the surface of the interlayer insulation film and in the wiring groove and contact hole in contact with the conductive portion. A copper film is then formed on the barrier metal in contact with the tungsten carbide film. After that, the contact hole and wiring groove are completely filled with the copper film by heat treatment. An excess portion is removed from the copper film except in the contact hole and wiring groove thereby to form a copper buried wiring layer.Type: GrantFiled: March 7, 2001Date of Patent: November 2, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Mitsutoshi Koyama, Toshio Shimizu, Takeshi Kubota
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Patent number: 6787804Abstract: A semiconductor acceleration sensor includesa non-single-crystal-silicon-based substrate, an insulating beam structure having a movable section and a stationary section, at least one piezoresistor positioned on the beam structure, an insulating supporter positioned on the non-single-crystal-silicon-based substrate for fixing the stationary section of the beam structure and forming a distance between the beam structure and the non-single-crystal-silicon-based substrate, and a thin film transistor (TFT) control circuit positioned on the non-single-crystal-silicon-based substrate and electrically connected to the piezoresistor and the beam structure.Type: GrantFiled: August 8, 2003Date of Patent: September 7, 2004Assignee: AU Optronics Corp.Inventor: Chien-Sheng Yang
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Patent number: 6734499Abstract: An insulated gate field effect transistor comprises a non-single-crystalline semiconductor layer formed on a substrate, a gate electrode is formed on a portion of the surface of said semiconductor layer, and a gate insulating film is disposed between said gate electrode and said semiconductor layer. A non-single-crystalline channel region is defined within said semiconductor layer just below said gate electrode. A source region and a drain region are transformed from and defined within said semiconductor layer immediately adjacent to said channel region in an opposed relation, said source and drain regions being crystallized to a higher degree than that of said channel region by selectively irradiating portions of said semiconductor layer using said gate electrode as a mask.Type: GrantFiled: September 28, 1999Date of Patent: May 11, 2004Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki