Characterized By Insulator (epo) Patents (Class 257/E21.192)
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Patent number: 11566100Abstract: Embodiments in accordance with the present invention encompass compositions encompassing a latent catalyst and a thermal or photoactivator along with one or more monomers which undergo ring open metathesis polymerization (ROMP) when said composition is heated to a temperature from 50° C. to 100° C. or higher to form a substantially transparent film. Alternatively the compositions of this invention also undergo polymerization when subjected to suitable radiation. The monomers employed therein have a range of refractive index from 1.4 to 1.6 and thus these compositions can be tailored to form transparent films of varied refractive indices. The compositions of this invention further comprises inorganic nanoparticles which form transparent films and further increases the refractive indices of the compositions. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as coatings, encapsulants, fillers, leveling agents, among others.Type: GrantFiled: August 3, 2020Date of Patent: January 31, 2023Assignee: PROMERUS, LLCInventors: Larry F Rhodes, Oleksandr Burtovyy, Wei Zhang
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Patent number: 11056580Abstract: A semiconductor device comprise a substrate, source/drain regions, a channel region, a gate dielectric layer and a gate conductive layer, wherein the gate dielectric layer comprises a barrier layer, a storage layer, a first interface layer, a tunneling layer, a second interface layer. In accordance with the semiconductor device and the manufacturing method of the present invention, an interface layer is added between the storage layer and tunneling layer in the gate dielectric by adjusting process step, and the peak concentration and peak location of nitrogen can be flexibly adjusted, effectively improving the quality of the interface between the storage layer and the tunneling layer in the gate dielectric layer, increasing process flexibility, improving device reliability and current characteristics.Type: GrantFiled: November 23, 2015Date of Patent: July 6, 2021Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCESInventor: Tianchun Ye
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Patent number: 10978319Abstract: Over a front surface of a silicon semiconductor wafer is deposited a high dielectric constant film with a silicon oxide film, serving as an interface layer, provided between the semiconductor wafer and the high dielectric constant film. After a chamber houses the semiconductor wafer, a chamber's pressure is reduced to be lower than atmospheric pressure. Subsequently, a gaseous mixture of ammonia and nitrogen gas is supplied into the chamber to return the pressure to ordinary pressure, and the front surface is irradiated with a flash light, thereby performing post deposition annealing (PDA) on the high dielectric constant film. Since the pressure is reduced once to be lower than atmospheric pressure and then returned to ordinary pressure, a chamber's oxygen concentration is lowered remarkably during the PDA. This restricts an increase in thickness of the silicon oxide film underlying the high dielectric constant film by oxygen taken in during the PDA.Type: GrantFiled: September 27, 2018Date of Patent: April 13, 2021Assignee: SCREEN Holdings Co., Ltd.Inventors: Takayuki Aoyama, Hikaru Kawarazaki, Masashi Furukawa, Shinichi Kato, Kazuhiko Fuse, Hideaki Tanimura
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Patent number: 10847580Abstract: Methods, systems, and devices for a three-dimensional memory array are described. Memory cells may transform when exposed to elevated temperatures, including elevated temperatures associated with a read or write operation of a neighboring cell, corrupting the data stored in them. To prevent this thermal disturb effect, memory cells may be separated from one another by thermally insulating regions that include one or several interfaces. The interfaces may be formed by layering different materials upon one another or adjusting the deposition parameters of a material during formation. The layers may be created with planar thin-film deposition techniques, for example.Type: GrantFiled: December 27, 2017Date of Patent: November 24, 2020Assignee: Micron Technology, Inc.Inventor: Paolo Fantini
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Patent number: 10379134Abstract: A sensor device for determining rotational speed of a rotatable object, includes a sensor housing with a sensor segment, a mounting segment and a connector segment, the sensor segment and the connector segment being arranged on opposite sides of the mounting segment, wherein a sensing element is arranged at the sensor tip of the sensor segment, sensor electronics are arranged inside the sensor segment, the sensor electronics including an integrated silicon-on-insulator circuit. The integrated silicon-on-insulator circuit is embedded between flexible polymer substrates. A turbocharger may include such a sensor device. The sensor device is designed to operate continuously at a temperature of at least 200° C.Type: GrantFiled: August 21, 2014Date of Patent: August 13, 2019Assignee: Jaquet Technology Group AGInventors: Andreas Tuor, Oliver Hirsch, Markus Eigenmann, Albert Peter
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Patent number: 10332743Abstract: It is an object to provide a highly reliable semiconductor device which includes a thin film transistor having stable electric characteristics. It is another object to manufacture a highly reliable semiconductor device at lower cost with high productivity. In a method for manufacturing a semiconductor device which includes a thin film transistor where a semiconductor layer including a channel formation region using an oxide semiconductor layer, a source region, and a drain region are formed using an oxide semiconductor layer, heat treatment for reducing impurities such as moisture (heat treatment for dehydration or dehydrogenation) is performed so as to improve the purity of the oxide semiconductor layer.Type: GrantFiled: August 1, 2017Date of Patent: June 25, 2019Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Toshinari Sasaki, Junichiro Sakata, Hiroki Ohara, Shunpei Yamazaki
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Patent number: 10204940Abstract: A manufacturing method of an array substrate is provided in this invention, a protective layer for the channel is formed by magnetron sputtering and thermal annealing treatment with the oxygen concentration greater than 21%, at a temperature of 300˜400° C. and the material of the protection layer includes Al2O3. The present invention further includes an array substrate and a liquid crystal display panel with the array substrate. The present invention prevents the impurity such as hydrogen atom into the channel, and the quality of the protective layer prepared by the present invention is higher to ensure the electrical properties of the channel and process easy to be achieve and conducive to industrialization.Type: GrantFiled: December 30, 2015Date of Patent: February 12, 2019Assignee: Wuhan China Star Optoelectronics Technology Co., LtdInventor: Wei Wang
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Patent number: 10020496Abstract: Provided is an anode material for a secondary battery, and more particularly, to an anode material for a secondary battery using a silicon oxide (SiOx), and a method of preparing the same. There is provided an anode material for a secondary battery, formed by preparing an SiOx and a carbon material, mixing the SiOx and the carbon material, forming a SiOx-carbon (SiOx-C) composite, and performing a heat treatment.Type: GrantFiled: July 9, 2012Date of Patent: July 10, 2018Inventor: Yoon-Kyu Kang
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Patent number: 9825176Abstract: A thin film transistor includes: a substrate, a semiconductor layer disposed on the substrate, a first gate electrode and a second gate electrode disposed on the semiconductor layer, a gate insulating layer disposed between the semiconductor layer and the first and second gate electrodes and having a first through hole between the first and second gate electrodes and a capping layer covering the first gate electrode and contacting the semiconductor layer via the first through hole. The capping layer includes a conductive material.Type: GrantFiled: April 28, 2016Date of Patent: November 21, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yul-Kyu Lee, Kyu-Sik Cho, Sun Park
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Patent number: 9455137Abstract: An insulating film including characteristics such as low permittivity, a low etching rate and a high insulation property is formed. Supplying a gas containing an element, a carbon-containing gas and a nitrogen-containing gas to a heated substrate in a processing vessel to form a carbonitride layer including the element, and supplying the gas containing the element and an oxygen-containing gas to the heated substrate in the processing vessel to form an oxide layer including the element are alternately repeated to form on the substrate an oxycarbonitride film having the carbonitride layer and the oxide layer alternately stacked therein.Type: GrantFiled: September 24, 2015Date of Patent: September 27, 2016Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Yoshiro Hirose, Yushin Takasawa, Tsukasa Kamakura, Yoshinobu Nakamura, Ryota Sasajima
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Patent number: 9384985Abstract: A metal gate process for polishing and oxidizing includes the following steps. A first dielectric layer having a trench is formed on a substrate. A barrier layer and a metal layer are formed sequentially to cover the trench and the first dielectric layer. A first chemical mechanical polishing process including a slurry of H2O2 with the concentration of 0˜0.5 weight percent (wt. %) is performed to polish the metal layer until the barrier layer on the first dielectric layer is exposed. A second chemical mechanical polishing process including a slurry of H2O2 with the concentration higher than 1 weight percent (wt. %) is performed to polish the barrier layer as well as oxidize a surface of the metal layer remaining in the trench until the first dielectric layer is exposed, thereby a metal oxide layer being formed on the metal layer.Type: GrantFiled: July 18, 2014Date of Patent: July 5, 2016Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chun-Hsien Lin, An-Chi Liu, Hsiao-Pang Chou
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Patent number: 9378943Abstract: An insulating film including characteristics such as low permittivity, a low etching rate and a high insulation property is formed. Supplying a gas containing an element, a carbon-containing gas and a nitrogen-containing gas to a heated substrate in a processing vessel to form a carbonitride layer including the element, and supplying the gas containing the element and an oxygen-containing gas to the heated substrate in the processing vessel to form an oxide layer including the element are alternately repeated to form on the substrate an oxycarbonitride film having the carbonitride layer and the oxide layer alternately stacked therein.Type: GrantFiled: January 9, 2012Date of Patent: June 28, 2016Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Yoshiro Hirose, Yushin Takasawa, Tsukasa Kamakura, Yoshinobu Nakamura, Ryota Sasajima
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Patent number: 8866238Abstract: Hybrid integrated components including an MEMS element and an ASIC element are described, whose capacitor system allows both signal detection with comparatively high sensitivity and sensitive activation of the micromechanical structure of the MEMS element. The hybrid integrated component includes an MEMS element having a micromechanical structure which extends over the entire thickness of the MEMS substrate. At least one structural element of this micromechanical structure is deflectable and is operationally linked to at least one capacitor system, which includes at least one movable electrode and at least one stationary electrode. Furthermore, the component includes an ASIC element having at least one electrode of the capacitor system. The MEMS element is mounted on the ASIC element, so that there is a gap between the micromechanical structure and the surface of the ASIC element.Type: GrantFiled: April 24, 2013Date of Patent: October 21, 2014Assignee: Robert Bosch GmbHInventor: Johannes Classen
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Patent number: 8502326Abstract: An integrated circuit structure includes a semiconductor substrate and a high-voltage metal-oxide-semiconductor (HVMOS) device, which includes a first high-voltage well (HVW) region of a first conductivity type in the semiconductor substrate; a drain region of a second conductivity type opposite the first conductivity type in the semiconductor substrate and spaced apart from the first HVW region; a gate dielectric with at least a portion directly over the first HVW region; and a gate electrode over the gate dielectric. The gate dielectric includes a bottom gate oxide region; and a silicon nitride region over the bottom gate oxide region.Type: GrantFiled: September 22, 2010Date of Patent: August 6, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kong-Beng Thei, Jiun-Lei Jerry Yu, Chien-Chih Chou, Chun-Lin Tsai
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Publication number: 20130109166Abstract: Methods are provided for fabricating integrated circuits having controlled threshold voltages. In accordance with one embodiment a method includes forming a gate dielectric overlying an N-doped silicon substrate and depositing a layer of titanium nitride and a layer of tantalum nitride overlying the gate dielectric. A sub-monolayer of tantalum oxide is deposited overlying the layer of tantalum nitride by a process of atomic layer deposition, and oxygen is diffused from the tantalum oxide through the tantalum nitride and titanium nitride.Type: ApplicationFiled: November 1, 2011Publication date: May 2, 2013Applicant: GLOBALFOUNDRIES INC.Inventors: Dina Triyoso, Elke Erben, Klaus Hempel
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Patent number: 8431471Abstract: A feature is formed in the NVM isolation region during the patterning and etching of an NVM device and a logic device such that the feature is of substantially equal height to the logic device and is well-defined so that it does not cause defect signals. A first conductive layer is formed over a substrate. The first conductive layer is patterned to expose at least a portion of the substrate in an NVM region and at least a portion of an isolation region. An NVM dielectric stack is formed over the first conductive layer, the exposed substrate, and the exposed isolation region, and a second conductive layer is formed over the NVM dielectric stack. The first and second conductive layers and the NVM dielectric stack are patterned to form a first gate and a second gate of an NVM cell in the NVM region and a feature over the isolation region.Type: GrantFiled: November 22, 2010Date of Patent: April 30, 2013Assignee: Freescale Semiconductor, Inc.Inventors: Jane A. Yater, Sung-Taeg Kang, Mehul D. Shroff
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Patent number: 8431469Abstract: An electrical device in which an interface layer is disposed between and in contact with a metal and a Si-based semiconductor, the interface layer being of a thickness effective to depin of the Fermi level of the semiconductor while still permitting current to flow between the metal and the semiconductor. The interface layer may include a layer of a passivating material (e.g., made from nitrogen, oxygen, oxynitride, arsenic, hydrogen and/or fluorine) and sometimes also includes a separation layer. In some cases, the interface layer may be a monolayer of a semiconductor passivating material. The interface layer thickness corresponds to a minimum specific contact resistance of less than or equal to 10 ?-?m2 or even less than or equal to 1 ?-?m2 for the electrical device.Type: GrantFiled: February 7, 2011Date of Patent: April 30, 2013Assignee: Acorn Technologies, Inc.Inventors: Daniel E. Grupp, Daniel J. Connelly
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Patent number: 8426302Abstract: A method of manufacturing a semiconductor device according to an embodiment, includes: forming a stack structure by alternately stacking control gate electrodes and interlayer insulating films; forming a through-hole that penetrates through the stack structure in a stacking direction of the control gate electrodes and the interlayer insulating films; forming a first insulating film that covers an inner surface of the through-hole; forming a charge storage layer that covers an inner surface of the first insulating film; forming a second insulating film that covers an inner surface of the charge storage layer; forming a semiconductor layer that covers an inner surface of the second insulating film; and oxidizing an interface between the semiconductor layer and the second insulating film by performing a heat treatment in an atmosphere containing O2 gas at a temperature of 600° C. or lower.Type: GrantFiled: February 10, 2012Date of Patent: April 23, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Daisuke Matsushita, Koichi Kato, Yuichiro Mitani
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Patent number: 8410554Abstract: A design structure is embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes a structure which comprises a high-leakage dielectric formed in a divot on each side of a segmented FET comprised of active silicon islands and gate electrodes thereon, and a low-leakage dielectric on the surface of the active silicon islands, adjacent the high-leakage dielectric, wherein the low-leakage dielectric has a lower leakage than the high-leakage dielectric. Also provided is a structure and method of fabricating the structure.Type: GrantFiled: March 26, 2008Date of Patent: April 2, 2013Assignee: International Business Machines CorporationInventors: Brent A. Anderson, Edward J. Nowak
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Publication number: 20130037890Abstract: The present disclosure provides for multiple gate dielectric semiconductor structures and methods of forming such structures. In one embodiment, a method of forming a semiconductor structure includes providing a substrate including a pixel array region, an input/output (I/O) region, and a core region. The method further includes forming a first gate dielectric layer over the pixel array region, forming a second gate dielectric layer over the I/O region, and forming a third gate dielectric layer over the core region, wherein the first gate dielectric layer, the second gate dielectric layer, and the third gate dielectric layer are each formed to be comprised of a different material and to have a different thickness.Type: ApplicationFiled: August 11, 2011Publication date: February 14, 2013Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hsiao-Hui Tseng, Dun-Nian Yaung, Jen-Cheng Liu, Wen-I Hsu, Min-Feng Kao
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Patent number: 8350314Abstract: According to an aspect of the present invention, there is provided a nonvolatile semiconductor memory device, comprising a plurality of memory strings, each of the memory strings being constituted with a plurality of electrically erasable memory cells being serially connected each other, the memory strings comprising: a columnar semiconductor layer perpendicularly extending toward a substrate; a plurality of conductive layers being formed in parallel to the substrate and including a first space between a sidewall of the columnar semiconductor layers; and characteristic change layer being formed on the sidewall of the columnar semiconductor layer faced to the first space or a sidewall of the conductive layer faced to the first space and changing characteristics accompanying with applied voltage; wherein the plurality of the conductive layers have a function of a relative movement to a prescribed direction for the columnar semiconductor layer.Type: GrantFiled: December 1, 2008Date of Patent: January 8, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kidoh, Masaru Kito, Hiroyasu Tanaka, Hideaki Aochi, Yasuyuki Matsuoka
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Patent number: 8349695Abstract: In sophisticated manufacturing techniques, the work function and thus the threshold voltage of transistor elements may be adjusted in an early manufacturing stage by providing a work function adjusting species within the high-k dielectric material with substantially the same spatial distribution in the gate dielectric materials of different thickness. After the incorporation of the work function adjusting species, the final thickness of the gate dielectric materials may be adjusted by selectively forming an additional dielectric layer so that the further patterning of the gate electrode structures may be accomplished with a high degree of compatibility to conventional manufacturing techniques. Consequently, extremely complicated processes for re-adjusting the threshold voltages of transistors having a different thickness gate dielectric material may be avoided.Type: GrantFiled: August 2, 2010Date of Patent: January 8, 2013Assignee: GLOBALFOUNDRIES, Inc.Inventors: Thilo Scheiper, Andy Wei, Martin Trentzsch
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Publication number: 20120326162Abstract: A repair layer forming process includes the following steps. Firstly, a substrate is provided, and a gate structure is formed on the substrate, wherein the gate structure at least includes a gate dielectric layer and a gate conductor layer. Then, a nitridation process is performed to form a nitrogen-containing superficial layer on a sidewall of the gate structure. Then, a thermal oxidation process is performed to convert the nitrogen-containing superficial layer into a repair layer. Moreover, a metal-oxide-semiconductor transistor includes a substrate, a gate dielectric layer, a gate conductor layer and a repair layer. The gate dielectric layer is formed on the substrate. The gate conductor layer is formed on the gate dielectric layer. The repair layer is at least partially formed on a sidewall of the gate conductor layer.Type: ApplicationFiled: June 27, 2011Publication date: December 27, 2012Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chien-Liang LIN, Ying-Wei Yen, Yu-Ren Wang
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Patent number: 8318565Abstract: Methods for fabricating gate electrode/high-k dielectric gate structures having an improved resistance to the growth of silicon dioxide (oxide) at the dielectric/silicon-based substrate interface. In an embodiment, a method of forming a transistor gate structure comprises: incorporating nitrogen into a silicon-based substrate proximate a surface of the substrate; depositing a high-k gate dielectric across the silicon-based substrate; and depositing a gate electrode across the high-k dielectric to form the gate structure. In one embodiment, the gate electrode comprises titanium nitride rich in titanium for inhibiting diffusion of oxygen.Type: GrantFiled: March 11, 2010Date of Patent: November 27, 2012Assignee: International Business Machines CorporationInventors: Huiming Bu, Michael P. Chudzik, Wei He, William K. Henson, Siddarth A. Krishnan, Unoh Kwon, Naim Moumen, Wesley C. Natzle
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Patent number: 8299569Abstract: A method of cutting an electrical fuse including a first conductor and a second conductor, the first conductor including a first cutting target region, the second conductor branched from the first conductor and connected to the first conductor and including a second cutting target region, which are formed on a semiconductor substrate, the method includes flowing a current in the first conductor, causing material of the first conductor to flow outward near a coupling portion connecting the first conductor to the second conductor, and cutting the first cutting target region and the second cutting target region.Type: GrantFiled: July 8, 2011Date of Patent: October 30, 2012Assignee: Renesas Electronics CorporationInventor: Takehiro Ueda
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Publication number: 20120126309Abstract: A feature is formed in the NVM isolation region during the patterning and etching of an NVM device and a logic device such that the feature is of substantially equal height to the logic device and is well-defined so that it does not cause defect signals. A first conductive layer is formed over a substrate. The first conductive layer is patterned to expose at least a portion of the substrate in an NVM region and at least a portion of an isolation region. An NVM dielectric stack is formed over the first conductive layer, the exposed substrate, and the exposed isolation region, and a second conductive layer is formed over the NVM dielectric stack. The first and second conductive layers and the NVM dielectric stack are patterned to form a first gate and a second gate of an NVM cell in the NVM region and a feature over the isolation region.Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Inventors: JANE A. YATER, Sung-Taeg Kang, Mehul D. Shroff
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Patent number: 8158480Abstract: A method of forming a semiconductor device pattern, a method of forming a charge storage pattern, a non-volatile memory device including a charge storage pattern and a method of manufacturing the same are provided. The method of forming the charge storage pattern including forming a trench on a substrate, and a device isolation pattern in the trench. The device isolation pattern protrudes from a surface of the substrate such that an opening exposing the substrate is formed. A tunnel oxide layer is formed on the substrate in the opening. A preliminary charge storage pattern is formed on the tunnel oxide layer and the device isolation pattern by selective deposition of conductive materials. The preliminary charge storage pattern may be removed from the device isolation pattern. The preliminary charge storage pattern remains only on the tunnel oxide layer to form the charge storage pattern on the substrate.Type: GrantFiled: June 18, 2008Date of Patent: April 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Soo Kang, Choong-Ho Lee, Suk-Kang Sung, Se-Jun Park
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Publication number: 20120077336Abstract: A semiconductor device of the present invention includes: a semiconductor layer; a gate insulation film provided on the semiconductor layer and including at least one of Hf and Zr; and a gate electrode provided on the gate insulation film and including a carbonitride which includes at least one of Hf and Zr.Type: ApplicationFiled: December 6, 2011Publication date: March 29, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Akio KANEKO, Seiji INUMIYA
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Patent number: 8119510Abstract: Provided is a manufacturing method of a semiconductor device including a gate insulating film which can be formed into a thin film and of which film composition is easy to be controlled. The manufacturing method includes: forming a manganese oxide film for serving as a gate insulating film on a semiconductor substrate, on which a transistor is formed; forming a conductive film for serving as a gate electrode on the manganese oxide film; and forming a gate electrode and a gate insulating film by processing the conductive film and the manganese oxide film.Type: GrantFiled: February 16, 2010Date of Patent: February 21, 2012Assignee: Tokyo Electron LimitedInventors: Hiroshi Sato, Kenji Matsumoto, Hitoshi Itoh
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Publication number: 20120034772Abstract: A nonvolatile semiconductor memory device includes a first insulator, first conductor, element isolation insulator, second insulator and second conductor. The first insulator is formed on the main surface of a substrate and the first conductor is formed on the first insulator. The element isolation insulator is filled into at least part of both side surfaces of the first insulator in a gate width direction thereof and both side surfaces of the first conductor in a gate width direction thereof and is so formed that the upper surface thereof will be set with height between those of the upper and bottom surfaces of the first conductor. The second insulator includes a three-layered insulating film formed of a silicon oxide film, a silicon oxynitride film and a silicon oxide film formed on the first conductor and element isolation insulator. The second conductor is formed on the second insulator.Type: ApplicationFiled: October 14, 2011Publication date: February 9, 2012Inventors: Hirokazu ISHIDA, Masayuki TANAKA, Yoshio OZAWA
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Patent number: 8105930Abstract: In one embodiment, the method of forming a dielectric layer includes supplying a first precursor at a temperature less than 400 degrees Celsius to a chamber including a substrate. The first precursor includes dysprosium. A first reaction gas is supplied to the chamber to react with the first precursor. A second precursor is supplied at a temperature less than 400 degrees Celsius to the chamber, and the second precursor includes scandium. A second reaction gas is supplied to the chamber to react with the second precursor.Type: GrantFiled: May 28, 2008Date of Patent: January 31, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hoonsang Choi, Bongjin Kuh, Sunjung Kim, Youngsun Kim, Seunghwan Lee, Sangwook Lim, Chunhyung Chung
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Publication number: 20110256682Abstract: A method is provided for fabricating a semiconductor device. A semiconductor substrate is provided. A first high-k dielectric layer is formed on the semiconductor substrate. A first treatment is performed on the high-k dielectric layer. In an embodiment, the treatment includes a UV radiation in the presence of O2 and/or O3. A second high-k dielectric layer is formed on the treated first high-k dielectric layer. A second treatment is performed on the second high-k dielectric layer. In an embodiment, the high-k dielectric layer forms a gate dielectric layer of a field effect transistor.Type: ApplicationFiled: April 15, 2010Publication date: October 20, 2011Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Xiong-Fei Yu, Wei-Yang Lee, Da-Yuan Lee, Kuang-Yuan Hsu, Yuan-Hung Chiu, Hun-Jan Tao, Hongyu Yu, Wu Ling
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Publication number: 20110221012Abstract: Methods for fabricating gate electrode/high-k dielectric gate structures having an improved resistance to the growth of silicon dioxide (oxide) at the dielectric/silicon-based substrate interface. In an embodiment, a method of forming a transistor gate structure comprises: incorporating nitrogen into a silicon-based substrate proximate a surface of the substrate; depositing a high-k gate dielectric across the silicon-based substrate; and depositing a gate electrode across the high-k dielectric to form the gate structure. In one embodiment, the gate electrode comprises titanium nitride rich in titanium for inhibiting diffusion of oxygen.Type: ApplicationFiled: March 11, 2010Publication date: September 15, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Huiming Bu, Michael P. Chudzik, Wei He, William K. Henson, Siddarth A. Krishnan, Unoh Kwon, Naim Moumen, Wesley C. Natzle
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Patent number: 7981786Abstract: A method of fabricating a non-volatile memory device having a charge trapping layer includes forming a tunneling layer, a charge trapping layer, a blocking layer and a control gate electrode layer over a substrate, forming a mask layer pattern on the control gate electrode layer, performing an etching process using the mask layer pattern as an etching mask to remove an exposed portion of the control gate electrode layer, wherein the etching process is performed as excessive etching to remove the charge trapping layer by a specified thickness, forming an insulating layer for blocking charges from moving on the control gate electrode layer and the mask layer pattern, performing anisotropic etching on the insulating layer to form an insulating layer pattern on a sidewall of the control gate electrode layer and a partial upper sidewall of the blocking layer, and performing an etching process on the blocking layer exposed by the anisotropic etching, wherein the etching process is performed as excessive etching toType: GrantFiled: December 28, 2007Date of Patent: July 19, 2011Assignee: Hynix Semiconductor Inc.Inventors: Moon Sig Joo, Seung Ho Pyi, Ki Seon Park, Heung Jae Cho, Yong Top Kim
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Publication number: 20110169124Abstract: An electrical device in which an interface layer is disposed between and in contact with a metal and a Si-based semiconductor, the interface layer being of a thickness effective to depin of the Fermi level of the semiconductor while still permitting current to flow between the metal and the semiconductor. The interface layer may include a layer of a passivating material (e.g., made from nitrogen, oxygen, oxynitride, arsenic, hydrogen and/or fluorine) and sometimes also includes a separation layer. In some cases, the interface layer may be a monolayer of a semiconductor passivating material. The interface layer thickness corresponds to a minimum specific contact resistance of less than or equal to 10 ?-?m2 or even less than or equal to 1 ?-?m2 for the electrical device.Type: ApplicationFiled: February 7, 2011Publication date: July 14, 2011Inventors: Daniel E. Grupp, Daniel J. Connelly
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Publication number: 20110163385Abstract: A semiconductor structure is provided that includes at least one asymmetric gate stack located on a surface of a semiconductor structure. The at least one asymmetric gate stack includes, from bottom to top, a high k gate dielectric, a sloped threshold voltage adjusting material layer and a gate conductor. A method of forming such a semiconductor structure is also provided in which a line of sight deposition process is used in forming the sloped threshold voltage adjusting material layer in which the deposition is tilted within respect to a horizontal surface of a semiconductor structure.Type: ApplicationFiled: January 7, 2010Publication date: July 7, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Dureseti Chidambarrao, Sunfei Fang, Yue Liang, Xiaojun Yu, Jun Yuan
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Patent number: 7973397Abstract: A packaging substrate having a semiconductor chip embedded and a fabrication method thereof are provided. The method includes forming a semiconductor chip in a through cavity of a core board and exposing a photosensitive portion of the semiconductor chip from the through cavity; sequentially forming a first dielectric layer and a first circuit layer on the core board, the first circuit layer being electrically connected to the electrode pads of the semiconductor chip; forming a light-permeable window on the first dielectric layer to expose the photosensitive portion of the semiconductor chip and adhering a light-permeable layer onto the light-permeable window, thereby permitting light to penetrate through the light-permeable layer to reach the photosensitive portion. Therefore, when fabricated with the method, the packaging substrate dispenses with conductive wires and dams and thus can be downsized.Type: GrantFiled: June 12, 2009Date of Patent: July 5, 2011Assignee: Unimicron Technology Corp.Inventors: Shin-Ping Hsu, Kan-Jung Chia
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Patent number: 7968956Abstract: A semiconductor device includes a semiconductor substrate, a p-channel MIS transistor formed on the substrate, the p-channel transistor having a first gate dielectric formed on the substrate and a first gate electrode layer formed on the first dielectric, and an n-channel MIS transistor formed on the substrate, the n-channel transistor having a second gate dielectric formed on the substrate and a second gate electrode layer formed on the second dielectric. A bottom layer of the first gate electrode layer in contact with the first gate dielectric and a bottom layer of the second gate electrode layer in contact with the second gate dielectric have the same orientation and the same composition including Ta and C, and a mole ratio of Ta to a total of C and Ta, (Ta/(Ta+C)), is larger than 0.5.Type: GrantFiled: February 19, 2009Date of Patent: June 28, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Kosuke Tatsumura, Masakazu Goto, Reika Ichihara, Masato Koyama, Shigeru Kawanaka, Kazuaki Nakajima
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Patent number: 7964513Abstract: Multiple sequential processes are conducted in a reaction chamber to form ultra high quality silicon-containing compound layers, including silicon nitride layers. In a preferred embodiment, a silicon layer is deposited on a substrate using trisilane as the silicon precursor. A silicon nitride layer is then formed by nitriding the silicon layer. By repeating these steps, a silicon nitride layer of a desired thickness is formed.Type: GrantFiled: August 24, 2009Date of Patent: June 21, 2011Assignee: ASM America, Inc.Inventors: Michael A. Todd, Keith D. Weeks, Christiaan J. Werkhoven, Christophe F. Pomarede
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Patent number: 7923378Abstract: A silicon-containing insulating film is formed on a target substrate by CVD, in a process field to be selectively supplied with a first process gas including di-iso-propylaminosilane gas and a second process gas including an oxidizing gas or nitriding gas. The film is formed by performing a plurality of times a cycle alternately including first and second steps. The first step performs supply of the first process gas, thereby forming an adsorption layer containing silicon on a surface of the target substrate. The second performs supply of the second process gas, thereby oxidizing or nitriding the adsorption layer on the surface of the target substrate. The second step includes an excitation period of supplying the second process gas to the process field while exciting the second process gas by an exciting mechanism.Type: GrantFiled: January 28, 2009Date of Patent: April 12, 2011Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa
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Patent number: 7884003Abstract: An electrical device in which an interface layer is disposed between and in contact with a metal and a Si-based semiconductor, the interface layer being of a thickness effective to depin of the Fermi level of the semiconductor while still permitting current to flow between the metal and the semiconductor. The interface layer may include a layer of a passivating material (e.g., made from nitrogen, oxygen, oxynitride, arsenic, hydrogen and/or fluorine) and sometimes also includes a separation layer. In some cases, the interface layer may be a monolayer of a semiconductor passivating material. The interface layer thickness corresponds to a minimum specific contact resistance of less than or equal to 10 ?-?m2 or even less than or equal to 1 ?-?m2 for the electrical device.Type: GrantFiled: August 25, 2008Date of Patent: February 8, 2011Assignee: Acorn Technologies, Inc.Inventors: Daniel E. Grupp, Daniel J. Connelly
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Publication number: 20110027979Abstract: To provide a method of manufacturing a dielectric film having a high dielectric constant. In an embodiment of the present invention, an HfN/Hf laminated film is formed on a substrate on which a thin silicon oxide film is formed and a dielectric film of a metal nitride made of a mixture of Hf, Si, O and N is manufactured by annealing treatment. According to the present invention, it is possible to (1) reduce an EOT, (2) reduce a leak current to Jg=1.0×10?1 A/cm2 or less, (3) suppress hysteresis caused by the generation of fixed charges, and (4) prevent an increase in EOT even if heat treatment at 700° C. or more is performed and obtain excellent heat resistance.Type: ApplicationFiled: July 21, 2010Publication date: February 3, 2011Applicant: CANON ANELVA CORPORATIONInventors: Takuya Seino, Takashi Nakagawa, Naomu Kitano, Toru Tatsumi
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Publication number: 20110012209Abstract: A method of making a gate structure includes the following steps. First, a gate is formed. Then, a first silicon oxide layer, a silicon nitride layer, and a second silicon oxide layer are formed to cover the gate from bottom to top. Later, a dry etching is performed to etch the second silicon oxide layer. After that, a wet etching is performed to etch the silicon nitride layer and the first silicon oxide layer. The aforesaid wet etching is performed by utilizing an RCA cleaning solution. Furthermore, the silicon nitride layer is formed by the SINGEN process. Therefore, the first and second silicon oxide layer and the silicon nitride layer can be etched together by the RCA cleaning solution.Type: ApplicationFiled: July 14, 2009Publication date: January 20, 2011Inventors: Ching-Hung Kao, Chien-En Hsu
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Publication number: 20110003467Abstract: A method of forming a semiconductor device includes the following processes. A nitrogen-diffusion region is selectively formed in a semiconductor substrate having first and second regions. The nitrogen-diffusion region is at a shallow level of the first region. A first heat treatment is carried out to form a first oxide layer over the semiconductor substrate. The first oxide layer includes first and second portions. The first portion is in the first region. The second portion is in the second region. The first portion is thinner than the second portion.Type: ApplicationFiled: June 29, 2010Publication date: January 6, 2011Applicant: Elpida Memory, Inc.Inventor: Takayuki KANDA
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Patent number: 7863157Abstract: A photovoltaic cell device, e.g., solar cell, solar panel, and method of manufacture. The device has an optically transparent substrate comprises a first surface and a second surface. A first thickness of material (e.g., semiconductor material, single crystal material) having a first surface region and a second surface region is included. In a preferred embodiment, the surface region is overlying the first surface of the optically transparent substrate. The device has an optical coupling material provided between the first surface region of the thickness of material and the first surface of the optically transparent material. A second thickness of semiconductor material is overlying the second surface region to form a resulting thickness of semiconductor material.Type: GrantFiled: March 13, 2007Date of Patent: January 4, 2011Assignee: Silicon Genesis CorporationInventors: Francois J. Henley, Philip James Ong
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Publication number: 20100301428Abstract: Electronic apparatus and methods of forming the electronic apparatus include a tantalum silicon oxynitride film on a substrate for use in a variety of electronic systems. The tantalum silicon oxynitride film may be structured as one or more monolayers. The tantalum silicon oxynitride film may be formed using a monolayer or partial monolayer sequencing process. Metal electrodes may be disposed on a dielectric containing a tantalum silicon oxynitride film.Type: ApplicationFiled: August 12, 2010Publication date: December 2, 2010Inventors: Leonard Forbes, Kie Y. Ahn, Arup Bhattacharyya
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Patent number: 7833891Abstract: A semiconductor device and method is provided that has an oxygen diffusion barrier layer between a high-k dielectric and BOX. The method includes depositing a diffusion barrier layer on a BOX layer and gate structure and etching a portion of the diffusion barrier layer from sidewalls of the gate structure. The method further includes depositing a high-k dielectric on the diffusion barrier layer and the gate structure.Type: GrantFiled: July 23, 2008Date of Patent: November 16, 2010Assignee: International Business Machines CorporationInventors: Kagguo Cheng, Bruce B. Doris
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Patent number: 7824991Abstract: A MOSFET fabrication process comprises nitridation of the dielectric silicon interface so that silicon-dangling bonds are connected with nitrogen atoms creating silicon—nitrogen bonds, which are stronger than silicon-hydrogen bonds. A tunnel dielectric is formed on the substrate. A nitride layer is then formed over the tunnel dielectric layer. The top of the nitride layer is then converted to an oxide and the interface between the substrate and the tunnel dielectric is nitrided simultaneously with conversion of the nitride layer to oxide.Type: GrantFiled: January 18, 2006Date of Patent: November 2, 2010Assignee: Macronix International Co., Ltd.Inventors: Yen-Hao Shih, Shih-Chin Lee
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Patent number: 7824943Abstract: Many inventions are disclosed. Some aspects are directed to MEMS, and/or methods for use with and/or for fabricating MEMS, that supply, store, and/or trap charge on a mechanical structure disposed in a chamber. Various structures may be disposed in the chamber and employed in supplying, storing and/or trapping charge on the mechanical structure. In some aspects, a breakable link, a thermionic electron source and/or a movable mechanical structure are employed. The breakable link may comprise a fuse. In one embodiment, the movable mechanical structure is driven to resonate. In some aspects, the electrical charge enables a transducer to convert vibrational energy to electrical energy, which may be used to power circuit(s), device(s) and/or other purpose(s). In some aspects, the electrical charge is employed in changing the resonant frequency of a mechanical structure and/or generating an electrostatic force, which may be repulsive.Type: GrantFiled: June 4, 2006Date of Patent: November 2, 2010Assignee: Akustica, Inc.Inventors: Markus Lutz, Aaron Partridge, Brian H. Stark
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Publication number: 20100248464Abstract: A method is provided for forming a high-k gate stack with a reduced effective oxide thickness (EOT) for a semiconductor device. The method includes providing a silicon-containing substrate, forming an interface layer on the silicon-containing substrate, where the interface layer has a first equivalent oxide thickness, depositing a first high-k film on the interface layer, and heat-treating the first high-k film and the interface layer at a temperature that forms a modified interface layer, where the modified interface layer has a second equivalent oxide thickness that is equal to or lower than the first equivalent oxide thickness. The method further includes depositing a second high-k film on the modified interface layer. According to one embodiment, the first high-k film includes lanthanum oxide and the second high-k film includes hafnium silicate.Type: ApplicationFiled: March 8, 2010Publication date: September 30, 2010Applicant: TOKYO ELECTRON LIMITEDInventor: Robert D. Clark