Thermally Responsive Patents (Class 438/54)
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Patent number: 8222086Abstract: A plurality of FPGA dice is disposed upon a semiconductor substrate. In order both to connect thousands of signal interconnect lines between the plurality of FPGA dice and to supply the immense power required, it is desired that the substrate construction include two different portions, each manufactured using incompatible processes. The first portion is a signal interconnect structure containing a thin conductor layers portion characterized as having a plurality of thin, fine-pitch conductors. The second portion is a power connection structure that includes thick conductors and vertical through-holes. The through-holes contain conductive material and supply power to the FPGA dice from power bus bars located at the other side of the semiconductor substrate. The portions are joined at the wafer level by polishing the wafer surfaces within a few atoms of flatness and subsequent cleaning. The portions are then fusion bonded together or combined using an adhesive material.Type: GrantFiled: April 4, 2011Date of Patent: July 17, 2012Assignee: Research Triangle InstituteInventor: Robert O. Conn
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Publication number: 20120175687Abstract: An embodiment of the invention relates to a Seebeck temperature difference sensor that may be formed in a trench on a semiconductor device. A portion of the sensor may be substantially surrounded by an electrically conductive shield. A plurality of junctions may be included to provide a higher Seebeck sensor voltage. The shield may be electrically coupled to a local potential, or left electrically floating. A portion of the shield may be formed as a doped well in the semiconductor substrate on which the semiconductor device is formed, or as a metal layer substantially covering the sensor. The shield may be formed as a first oxide layer on a sensor trench wall with a conductive shield formed on the first oxide layer, and a second oxide layer formed on the conductive shield. An absolute temperature sensor may be coupled in series with the Seebeck temperature difference sensor.Type: ApplicationFiled: March 21, 2012Publication date: July 12, 2012Applicant: Infineon Technologies AGInventors: Donald Dibra, Christoph Kadow, Markus Zundel
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Publication number: 20120176835Abstract: A disclosed temperature sensor includes a charge trap structure including a silicon oxide film formed on a substrate; an aluminum oxide film that is formed on the silicon oxide film, wherein oxygen is injected into the aluminum oxide film from an upper surface thereof; and an electrode formed on the aluminum oxide film, wherein a flat band voltage of the charge trap structure is temperature dependent.Type: ApplicationFiled: January 6, 2012Publication date: July 12, 2012Applicant: Tokyo Electron LimitedInventor: Yoshitsugu TANAKA
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Publication number: 20120175723Abstract: According to one embodiment, an infrared imaging device includes a substrate, a detecting section, an interconnection, a contact plug and a support beam. The detecting section is provided above the substrate and includes an infrared absorbing section and a thermoelectric converting section. The interconnection is provided on an interconnection region of the substrate and is configured to read the electrical signal. The contact plug is extends from the interconnection toward a connecting layer provided in the interconnection region. The contact plug is electrically connected to the interconnection and the connecting layer. The support beam includes a support beam interconnection and supports the detecting section above the substrate. The support beam interconnection transmits the electrical signal from the thermoelectric converting section to the interconnection.Type: ApplicationFiled: March 21, 2012Publication date: July 12, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Ikuo FUJIWARA, Hitoshi YAGI, Keita SASAKI
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Patent number: 8215832Abstract: A first thermosensitive element including a temperature detecting unit that outputs a voltage corresponding to a temperature to which the unit rises from ambient temperature (temperature of surrounding environment) due to incident infrared, and a second thermosensitive element including a temperature detecting unit that outputs a voltage based on ambient temperature are formed above/on a silicon substrate. The temperature detecting unit of the first thermosensitive element is thermally insulated from the silicon substrate by a clearance (space). The temperature detecting unit of the second thermosensitive element is formed on a first sacrifice layer made of deposited diamond like carbon, and thermally connected to the silicon substrate by the first sacrifice layer. The infrared sensor detects an amount of incident infrared based on the difference between output voltages of the first and second thermosensitive elements.Type: GrantFiled: February 12, 2009Date of Patent: July 10, 2012Assignee: NEC CorporationInventor: Seiji Kurashina
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Patent number: 8216931Abstract: Embodiments are directed to the formation of multi-layer three-dimensional structures by forming and attaching a plurality of layers where each of the plurality of layers comprises at least one structural material forming a pattern and where at least one of the plurality of layers comprises at least one sacrificial material. In one embodiment, the formation of a multi-layer three-dimensional structure comprises (1) forming a plurality of individual layers and (2) attaching at least the formed plurality of individual layers together. In another embodiment, the formation of a multi-layer three-dimensional structure comprises (1) attaching an individual layer onto a substrate or onto a previously formed layer; (2) processing the attached individual layer to form a new layer comprising at least one material forming a pattern; and (3) repeating the steps of (1) and (2) one or more times.Type: GrantFiled: October 10, 2006Date of Patent: July 10, 2012Inventor: Gang Zhang
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Patent number: 8216871Abstract: Methods of fabrication of a thermoelectric module from thin film thermoelectric material are disclosed. In general, a thin film thermoelectric module is fabricated by first forming an N-type thin film thermoelectric material layer and one or more metallization layers on a substrate. The one or more metallization layers and the N-type thin film thermoelectric material layer are etched to form a number of N-type thermoelectric material legs. A first electrode assembly is then bonded to a first portion of the N-type thermoelectric material legs, and the first electrode assembly including the first portion of the N-type thermoelectric material legs is removed from the substrate. In a similar manner, a second electrode assembly is bonded to a first portion of a number of P-type thermoelectric material legs. The first and second electrode assemblies are then bonded using a flip-chip bonding process to complete the fabrication of the thermoelectric module.Type: GrantFiled: October 5, 2010Date of Patent: July 10, 2012Assignee: The Board of Regents of the University of OklahomaInventor: Patrick John McCann
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Patent number: 8216434Abstract: A micromachined sensor for measuring vascular parameters, such as fluid shear stress, includes a substrate having a front-side surface, and a backside surface opposite the front-side surface. The sensor includes a diaphragm overlying a cavity etched within the substrate, and a heat sensing element disposed on the front-side surface of the substrate and on top of the cavity and the diaphragm. The heat sensing element is electrically couplable to electrode leads formed on the backside surface of the substrate. The sensor includes an electronic system connected to the backside surface and configured to measure a change in heat convection from the sensing element to surrounding fluid when the sensing element is heated by applying an electric current thereto, and further configured to derive from the change in heat convection vascular parameters such as the shear stress of fluid flowing past the sensing element.Type: GrantFiled: March 3, 2008Date of Patent: July 10, 2012Assignee: University of Southern CaliforniaInventors: Tzung K. Hsiai, Gopikrishnan Soundararajan, Eun Sok Kim, Hongyu Yu, Mahsa Rouhanizadeh, Christina Tiantian Lin
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Publication number: 20120167936Abstract: Disclosed are a thermoelectric device based on silicon nanowires including: a substrate; a silicon heat absorbing part absorbing heat, a silicon nanowire leg transferring heat, and a silicon heat releasing part releasing heat, which are formed on the substrate; and an insulating film with at least one or more holes, which is formed on the substrate including the silicon heat absorbing part, the silicon nanowire leg, and the silicon heat releasing part, and a method for manufacturing the same.Type: ApplicationFiled: December 14, 2011Publication date: July 5, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young Sam PARK, Moon Gyu Jang, Younghoon Hyun, Myungsim Jun, Taehyoung Zyung
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Publication number: 20120160292Abstract: A thermoelectric device includes: a substrate; a first nanowire of a first conductive type, which is formed on one side of the substrate; a second nanowire of a second conductive type, which is opposed to the first nanowire; a high temperature part commonly connected to one end of the first nanowire and one end of the second nanowire; low temperature parts connected to the other end of the first nanowire and the other end of the second nanowire, respectively; an insulation layer formed on the first nanowire and the second nanowire; a first metal layer formed on a portion of the insulation layer over the first nanowire, so as to control an electric potential of the first nanowire; and a second metal layer formed on a portion of the insulation layer over the second nanowire, so as to control an electric potential of the second nanowire.Type: ApplicationFiled: December 13, 2011Publication date: June 28, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Moon Gyu JANG, Young Sam Park, Younghoon Hyun, Myungsim Jun, Taehyoung Zyung
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Publication number: 20120161001Abstract: In one embodiment, a dual-band focal plane array includes a readout circuit (ROIC), and a plurality of electro-optical (EO) polymer pixels for absorbing visible and/or short wave infrared (SWIR) radiation, each of the EO polymer pixels electrically coupled to the ROIC. The detector further includes a plurality of microbolometers for detecting long wave infrared (LWIR) radiation, each microbolometer electrically coupled to the ROIC via contact legs disposed between adjacent microbolometers and between adjacent EO polymer pixels. A method of fabricating a focal plane array is also provided.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: FLIR SYSTEMS, INC.Inventor: Richard E. Bornfreund
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Patent number: 8207008Abstract: A solar device is provided, comprising a substrate structure having a surface region, a flexible and conformal material comprising a polymer material affixing the surface region, and one or more solar cells spatially provided by one or more films of materials characterized by a thickness dimension of 25 microns and less and mechanically coupled to the flexible and conformal material. The one or more solar cells have a flexible characteristic. The flexible characteristic maintains each of the solar cells substantially free from any damage or breakage thereto when the one or more films of materials is subjected to bending.Type: GrantFiled: March 18, 2009Date of Patent: June 26, 2012Assignee: Stion CorporationInventor: Chester A. Farris, III
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Patent number: 8207010Abstract: It is an object to form a high-quality crystalline semiconductor layer directly over a large-sized substrate with high productivity without reducing the deposition rate and to provide a photoelectric conversion device in which the crystalline semiconductor layer is used as a photoelectric conversion layer. A photoelectric conversion layer formed of a semi-amorphous semiconductor is formed over a substrate as follows: a reaction gas is introduced into a treatment chamber where the substrate is placed; and a microwave is introduced into the treatment chamber through a slit provided for a waveguide that is disposed in approximately parallel to and opposed to the substrate, thereby generating plasma. By forming a photoelectric conversion layer using such a semi-amorphous semiconductor, a rate of deterioration in characteristics by light deterioration is decreased from one-fifth to one-tenth, and thus a photoelectric conversion device that has almost no problems for practical use can be obtained.Type: GrantFiled: May 23, 2008Date of Patent: June 26, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yasuyuki Arai
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Patent number: 8207051Abstract: Methods, systems, and devices associated with surface modifying a semiconductor material are taught. One such method includes providing a semiconductor material having a target region and providing a dopant fluid layer that is adjacent to the target region of the semiconductor material, where the dopant fluid layer includes at least one dopant. The target region of the semiconductor material is lased so as to incorporate the dopant or to surface modify the semiconductor material. During the surface modification, the dopant in the dopant fluid layer is actively replenished.Type: GrantFiled: April 28, 2009Date of Patent: June 26, 2012Assignee: SiOnyx, Inc.Inventors: Jason Sickler, Keith Donaldson
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Publication number: 20120152296Abstract: Provided are a thermoelectric device, a thermoelectric device module, and a method of forming the thermoelectric device. The thermoelectric device includes a first conductive type first semiconductor nanowire including at least one first barrier region; a second conductive type second semiconductor nanowire including at least one second barrier region; a first electrode connected to one end of the first semiconductor nanowire; a second electrode connected to one end of the second semiconductor nanowire; and a common electrode connected to the other end of the first semiconductor nanowire and the other end of the second semiconductor nanowire. The first barrier region is greater than the first semiconductor nanowire in thermal conductivity, and the second barrier region is greater than the second semiconductor nanowire in thermal conductivity.Type: ApplicationFiled: February 29, 2012Publication date: June 21, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Moon-Gyu Jang, Myung-Sim Jun, Tae-Moon Roh, Jong-Dae Kim, Tae-Hyoung Zyung
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Publication number: 20120152295Abstract: A structure and method for at least one array of nanowires partially embedded in a matrix includes nanowires and one or more fill materials located between the nanowires. Each of the nanowires including a first segment associated with a first end, a second segment associated with a second end, and a third segment between the first segment and the second segment. The nanowires are substantially parallel to each other and are fixed in position relative to each other by the one or more fill materials. The third segment is substantially surrounded by the one or more fill materials. The first segment protrudes from the one or more fill materials.Type: ApplicationFiled: December 20, 2011Publication date: June 21, 2012Applicant: Alphabet Energy, Inc.Inventors: Gabriel A. Matus, Mingqiang Yi, Matthew L. Scullin, Justin Tynes Kardel
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Patent number: 8198116Abstract: A method for fabricating thermoelectric device is provided. The method comprises placing a first electrode in a die, forming a first interlayer on an upper surface of the first electrode; positioning a separating plate on an upper surface of the first interlayer to divide an inner space of the die into a plurality of cells, and depositing a first thermoelectric material on the first interlayer within a first fraction of the cells, and depositing a second thermoelectric material on the first interlayer within a second fraction of the cells, sintering the die contents, and removing the separating plate after sintering to obtain a ? shaped thermoelectric device.Type: GrantFiled: December 22, 2009Date of Patent: June 12, 2012Assignees: Corning Incorporated, Shanghai Institute of CeramicsInventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Xiaoya Li, Xugui Xia, Degang Zhao
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Publication number: 20120139075Abstract: A semiconductor thermoelectric cooler is configured to direct heat through channels of the cooler. The thermoelectric cooler has multiple electrodes and a first dielectric material positioned between side surfaces of the electrodes. A second dielectric material, different from the first dielectric material, is in contact with top surfaces of the electrodes. The first dielectric material extends above the top surface of the electrodes, separating portions of the second dielectric material, and is in contact with a portion of the top surfaces of the electrodes. The first dielectric material has a thermal conductivity different than a thermal conductivity of the second dielectric material. A ratio of the first dielectric material to the second dielectric material in contact with the top surface of the electrodes may be selected to control the heat retention. The semiconductor thermoelectric cooler may be manufactured using thin film technology.Type: ApplicationFiled: December 6, 2010Publication date: June 7, 2012Applicant: STMicroelectronics Pte. Ltd.Inventors: Ravi Shankar, Olivier Le Neel
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Publication number: 20120139076Abstract: A semiconductor thermoelectric cooler includes P-type and N-type thermoelectric cooling elements. The P-type and N-type thermoelectric elements have a first portion having a first cross-sectional area and a second portion having a second cross-sectional area larger than the first cross-sectional area. The P-type and N-type thermoelectric cooling elements may, for example, be T-shaped or L-shaped. In another example, the thermoelectric cooling elements have a first surface having a first shape configured to couple to a first electrical conductor and a second surface opposite the first surface and having a second shape, different from the first shape, and configured to couple to a second electrical conductor. For example, the first surface may have a rectilinear shape of a first area and the second surface may have a rectilinear shape of a second area different from the first area. The semiconductor thermoelectric cooler may be manufactured using thin film technology.Type: ApplicationFiled: December 6, 2010Publication date: June 7, 2012Applicant: STMicroelectronics Pte. Ltd.Inventors: Ravi Shankar, Olivier Le Neel
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Publication number: 20120132804Abstract: A thermal image sensor including a chalcogenide material, and a method of fabricating the thermal image sensor are provided. The thermal image sensor includes a first metal layer formed on a substrate; a cavity exiting the first metal layer adapted for absorbing infrared rays; a bolometer resistor formed on the cavity and including a chalcogenide material; and a second metal layer formed on the bolometer resistor. The thermal image sensor includes a first metal layer formed on a substrate; an insulating layer formed on the first metal layer; a bolometer resistor formed on the insulating layer, including a chalcogenide material and having a thickness corresponding to ¼ of an infrared wavelength (?); the thermal image sensor further includes a second metal layer formed on the bolometer resistor.Type: ApplicationFiled: August 31, 2011Publication date: May 31, 2012Inventors: Tae-yon Lee, Dong-seok Suh, Yoon-dong Park
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Publication number: 20120125916Abstract: Current may be passed through an n-doped semiconductor region, a recessed metal semiconductor alloy portion, and a p-doped semiconductor region so that the diffusion of majority charge carriers in the doped semiconductor regions transfers heat from or into the semiconductor waveguide through Peltier-Seebeck effect. Further, a temperature control device may be configured to include a metal semiconductor alloy region located in proximity to an optoelectronic device, a first semiconductor region having a p-type doping, and a second semiconductor region having an n-type doping. The temperature of the optoelectronic device may thus be controlled to stabilize the performance of the optoelectronic device.Type: ApplicationFiled: February 1, 2012Publication date: May 24, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Solomon Assefa, William M. Green, Young-hee Kim, Joris Van Campenhout, Yurii A. Vlasov
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Patent number: 8183079Abstract: A method of manufacturing a semiconductor device is disclosed. The method comprises: applying a sensing layer with variation in a secondary attribute according to heat, on a handle wafer; patterning the sensing layer, thus forming a cavity; forming a sensing part pattern having a beam structure in the cavity; forming a light-absorbing layer for converting energy of incident photons into heat, along the sensing part pattern; turning the entire structure over, removing the handle wafer, and thus exposing a rear portion of the sensing part pattern; and forming an additional light-absorbing layer on a rear portion of the light-absorbing layer formed on the sensing part pattern, thereby forming a sensing structure part having a beam structure.Type: GrantFiled: May 17, 2011Date of Patent: May 22, 2012Assignees: Hanvision Co., Ltd., Lumiense Photonics Inc.Inventor: Robert Hannebauer
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Publication number: 20120118346Abstract: A thermoelectric apparatus includes a first and a second assemblies, at least a first and a second heat conductors. The first assembly includes a first and a second substrates, and several first thermoelectric material sets disposed between the first and second substrates. The first substrate has at least a first through hole. The second assembly includes a third and a fourth substrates, and several second thermoelectric material sets disposed between the third and fourth substrates. The fourth substrate has at least a second through hole. Each of the first and second thermoelectric material sets has a p-type and an n-type thermoelectric element. The first and second heat conductors respectively penetrate the first and second through holes. Two ends of the first heat conductor respectively connect the second and fourth substrates, while two ends of the second heat conductor respectively connect the first and third substrates.Type: ApplicationFiled: March 4, 2011Publication date: May 17, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chun-Kai Liu, Ming-Ji Dai, Suh-Yun Feng, Li-Ling Liao
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Method for selectively establishing an electrical connection in a multi-terminal phase change device
Patent number: 8178380Abstract: Phase change devices, and particularly multi-terminal phase change devices, include first and second active terminals bridged together by a phase-change material whose conductivity can be modified in accordance with a control signal applied to a control electrode. This structure allows an application in which an electrical connection can be created between the two active terminals, with the control of the connection being effected using a separate terminal or terminals. Accordingly, the resistance of the heater element can be increased independently from the resistance of the path between the two active terminals. This allows the use of smaller heater elements thus requiring less current to create the same amount of Joule heating per unit area. The resistance of the heating element does not impact the total resistance of the phase change device.Type: GrantFiled: July 9, 2009Date of Patent: May 15, 2012Assignee: Agate Logic, Inc.Inventors: Louis Charles Kordus, II, Antonietta Oliva, Narbeh Derharcobian, Vei-Han Chan -
Publication number: 20120111387Abstract: A thermoelectric device and a method for manufacturing the same are provided. The thermoelectric device includes a middle substrate, electrodes, N-type thermopiles, and P-type thermopiles, in which the N-type thermopile and the P-type thermopile are electrically connected to each other by the electrodes in series. The thermoelectric device includes further includes an upper substrate bonded to an upper surface of the middle substrate and a lower substrate bonded to a lower surface of the substrate, such that a temperature difference is provided between opposite sides of each of the N-type thermopiles and the P-type thermopiles.Type: ApplicationFiled: May 2, 2011Publication date: May 10, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jin-woo CHO
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Patent number: 8169045Abstract: An embodiment of the invention relates to a Seebeck temperature difference sensor that may be formed in a trench on a semiconductor device. A portion of the sensor may be substantially surrounded by an electrically conductive shield. A plurality of junctions may be included to provide a higher Seebeck sensor voltage. The shield may be electrically coupled to a local potential, or left electrically floating. A portion of the shield may be formed as a doped well in the semiconductor substrate on which the semiconductor device is formed, or as a metal layer substantially covering the sensor. The shield may be formed as a first oxide layer on a sensor trench wall with a conductive shield formed on the first oxide layer, and a second oxide layer formed on the conductive shield. An absolute temperature sensor may be coupled in series with the Seebeck temperature difference sensor.Type: GrantFiled: April 28, 2009Date of Patent: May 1, 2012Assignee: Infineon Technologies AGInventors: Donald Dibra, Christoph Kadow, Markus Zundel
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Publication number: 20120091553Abstract: An integrated circuit includes active circuitry disposed at a surface of a semiconductor body and an interconnect region disposed above the semiconductor body. A thermoelectric material is disposed in an upper portion of the interconnect region away from the semiconductor body. The thermoelectric material is configured to deliver electrical energy when exposed to a temperature gradient. This material can be used, for example, in a method for detecting the repackaging of the integrated circuit after it has been originally packaged.Type: ApplicationFiled: September 23, 2011Publication date: April 19, 2012Applicant: STMicroelectronics (Rousset) SASInventors: Pascal Fornara, Christian Rivero
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Publication number: 20120077291Abstract: A method for manufacturing a sensor device (100; 200; 300; 400) comprising a thermal sensor (23), a battery (33), an antenna (34), an electronic circuitry (22) and a solar cell (43) together integrally in one semiconductor carrier (10), the method comprising the steps of:- providing a silicon wafer (10) with two main surfaces (11, 12); a first functional layer (20) is manufactured in one main surface (11), comprising a thermal sensor portion (21) and comprising electronic circuitry (22) arranged in a non-overlapping relationship with the thermal sensor portion; a second functional layer (30) containing a battery (33) and an antenna (34) is arranged in a non-overlapping relationship with the thermal sensor portion; a third functional layer (40) containing one or more solar cells (43) is arranged in a non-overlapping relationship with the thermal sensor portion; the portion of the wafer underneath the thermal sensor portion (21) is removed.Type: ApplicationFiled: May 7, 2010Publication date: March 29, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Willem F.P. Pasveer, Jaap Haartsen, Rogier A. H. Niessen
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Patent number: 8143689Abstract: A sensor device for sensing air flow speed at the exterior of an aircraft, comprising a substrate having an upper side on which is mounted a diaphragm over an aperture or recess in the substrate, the diaphragm being thermally and electrically insulative, and mounting on its upper surface a heating element comprising a layer of resistive material, and wherein electrical connections to the heating element are buried in the diaphragm and/or the substrate, and provide electrical terminals at the lower side of the substrate. The heating element is exposed to the environment, but the remaining electrical parts of the device are not exposed.Type: GrantFiled: September 19, 2006Date of Patent: March 27, 2012Assignee: BAE Systems PLCInventors: Clyde Warsop, Andrew Julian Press, Martyn John Hucker
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Publication number: 20120060889Abstract: A thermoelectric module capable of minimizing thermally and physically induced stress includes a pair of substrates having a plurality of electrically conductive contacts disposed on opposing faces, a plurality of P-type and N-type thermoelectric elements interposed between the pair of substrates forming a thermoelectric element circuit, and one or more of a stress minimizing structural element interposed between the pair of substrates where the stress minimizing structural element has a first surface fixed to one of the pair of substrates and a second surface fixed to the other of the pair of substrates in locations between the pair of substrates that minimize the effects of physical and thermal stresses on the plurality of P-type and N-type thermoelectric elements.Type: ApplicationFiled: September 13, 2011Publication date: March 15, 2012Applicant: FERROTEC (USA) CORPORATIONInventors: Robert W. Otey, David A. Kaminski
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Publication number: 20120060887Abstract: Disclosed is an asymmetric thermoelectric module, which includes a plurality of first-type thermoelectric semiconductor elements, a plurality of second-type thermoelectric semiconductor elements, a plurality of pairs of assistant layers having different melting points and disposed on the upper and lower surfaces of the first-type and second-type thermoelectric semiconductor elements, and a pair of substrates.Type: ApplicationFiled: December 8, 2010Publication date: March 15, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Yong Suk Kim, Jeong Ho Yoon, Sung Ho Lee, Dong Hyeok Choi, Ji Hye Shim, Kyu Hwan Oh
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Publication number: 20120062974Abstract: A thermally stabilized, high speed, micrometer-scale silicon electro-optic modulator is provided. Methods for maintaining desired temperatures in electro-optic modulators are also provided. The methods can be used to maintain high quality modulation in the presence of thermal variations from the surroundings. Direct current injection into the thermally stabilized electro-optic modulator is used to maintain the modulation performance of the modulator. The direct injected current changes the local temperature of the thermally stabilized electro-optic modulator to maintain its operation over a wide temperature range.Type: ApplicationFiled: March 19, 2010Publication date: March 15, 2012Applicant: CORNELL UNIVERSITYInventors: Sasikanth Manipatruni, Rajeev Dokania, Alyssa B. Apsel, Michal Lipson
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Publication number: 20120064655Abstract: An optical device and method is disclosed for forming the optical device within the wide-bandgap semiconductor substrate. The optical device is formed by directing a thermal energy beam onto a selected portion of the wide-bandgap semiconductor substrate for changing an optical property of the selected portion to form the optical device in the wide-bandgap semiconductor substrate. The thermal energy beam defines the optical and physical properties of the optical device. The optical device may take the form of an electro-optical device with the addition of electrodes located on the wide-bandgap semiconductor substrate in proximity to the optical device for changing the optical property of the optical device upon a change of a voltage applied to the optional electrodes. The invention is also incorporated into a method of using the optical device for remotely sensing temperature, pressure and/or chemical composition.Type: ApplicationFiled: May 27, 2011Publication date: March 15, 2012Applicant: University of Central FloridaInventors: Nathaniel R. Quick, Aravinda Kar
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Publication number: 20120061569Abstract: A thermal infrared sensor includes an infrared ray absorbing film that is thermally separated from a semiconductor substrate by a hollow part; and a temperature sensor configured to detect temperature changes of the infrared ray absorbing film. The infrared ray absorbing film includes an infrared ray antireflection structure configured with a sub wavelength structure, the infrared ray antireflection structure being provided on a surface of the infrared ray absorbing film facing the semiconductor substrate.Type: ApplicationFiled: September 8, 2011Publication date: March 15, 2012Applicant: RICOH COMPANY, LTD.Inventor: Hidetaka Noguchi
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Publication number: 20120064656Abstract: For the present invention, a P-type thermo-electric thin-film layer and a N-type thermo-electric thin-film layer are respectively deposited on two sides of an insulating substrate. During the deposition, the P-type thermo-electric thin-film layer and the N-type thermo-electric thin-film layer are deposited and connected on the same exposed side of the insulating substrate, and then a PN junction is formed. This method makes the fabrication simplified without special process for connecting the P-type thermo-electric thin-film layer and the N-type thermo-electric thin-film layer. Due to the features of thin-film thermo-electric material, the performance of thermo-electric generator is improved. During the deposition, the P-type thermo-electric thin-film layer and the N-type thermo-electric thin-film layer are deposited and connected on the exposed side of the insulating substrate, so welding is not required in this heating surface side.Type: ApplicationFiled: December 9, 2009Publication date: March 15, 2012Applicant: Shenzhen UniversityInventors: Ping Fan, Dong-Ping Zhang, Zhuang-Hao Zheng, Guang-Xing Liang
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Patent number: 8129214Abstract: A semiconductor device includes a semiconductor substrate and a lower interlayer insulating layer disposed on the substrate. An opening passing through the lower interlayer insulating layer and exposing the substrate is included. A buried insulating pattern is disposed in the opening. First and second conductive layer patterns are sequentially stacked to surround the sidewall and bottom of the buried insulating pattern. A phase change material pattern is included, which is disposed on the lower interlayer insulating layer in contact with a top surface of the second conductive layer pattern, and spaced apart from the first conductive layer pattern. An upper interlayer insulating layer covering the lower interlayer insulating layer and the phase change material pattern is included. A conductive plug is included, which passes through the upper interlayer insulating layer and is electrically connected to the phase change material pattern. A method of fabricating the semiconductor device is also provided.Type: GrantFiled: February 22, 2010Date of Patent: March 6, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Yoon-Jong Song, Kyung-Chang Ryoo, Dong-Won Lim
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Publication number: 20120049316Abstract: The present invention provides a thermoelectric module. The thermoelectric module includes a first substrate and a second substrate opposed to each other and arranged to be separated from each other, a first electrode and a second electrode arranged in the inside surfaces of the first and the second substrates, respectively, and a thermoelectric device inserted between the first and the second electrodes and electrically connected to the first and the second electrodes, wherein surface improvement layers are further included in at least one place located between an inside surface of the first substrate and the first electrode, between an inside surface of the second substrate and the second electrode, on an outside surface of the first substrate and on an outside surface of the second substrate.Type: ApplicationFiled: August 26, 2011Publication date: March 1, 2012Inventors: Yong Suk KIM, Sung Ho Lee, Yong Soo Oh, Tae Kon Koo
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Publication number: 20120049315Abstract: The present invention provides a thermoelectric module. The thermoelectric module includes a first substrate and a second substrate opposed to each other and arranged to be separated from each other, a first electrode and a second electrode arranged in an inside surface of the first and the second substrates, respectively, a thermoelectric device inserted between the first and the second electrodes and electrically connected to the first and the second electrodes and a hybrid filler inserted between the first substrate and the second substrate and provided with a high temperature part filler adjacent to a substrate at a side of a high temperature end to absorb heat among the first substrate and the second substrate and a low temperature part filler adjacent to a substrate at a side of a low temperature end to discharge heat.Type: ApplicationFiled: August 24, 2011Publication date: March 1, 2012Applicant: SAMSUNG ELECTRO-MICHANICS CO., LTDInventors: Yong Suk Kim, Sung Ho Lee, Yong Soo Oh, Tae Kon Koo
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Publication number: 20120049314Abstract: The present invention relates to a thermoelectric module. The thermoelectric module includes a first substrate and a second substrate opposed to each other and arranged to be separated from each other, a first electrode and a second electrode arranged in the inside surfaces of the first and the second substrates, respectively, a thermoelectric device inserted between the first and the second electrodes and electrically connected to the first and the second electrodes; and an elastic member filled between the first and the second substrates.Type: ApplicationFiled: August 22, 2011Publication date: March 1, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Yong Suk Kim, Sung Ho Lee, Young Soo Oh, Tae Kon Koo
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Patent number: 8114695Abstract: A method of producing a solid-state image pickup element includes forming a hole portion, forming a first-conductive type high-concentration impurity region in a bottom wall of the hole portion, and forming a first-conductive type high-concentration impurity-doped element isolation region in a part of a sidewall of the hole portion and connected to the first-conductive type high-concentration impurity region. The method also includes forming a second-conductive type photoelectric conversion region beneath the first-conductive type high-concentration impurity region and adapted to undergo a change in charge amount upon receiving light, and forming a transfer electrode formed on the sidewall of the hole portion through a gate dielectric film.Type: GrantFiled: December 16, 2010Date of Patent: February 14, 2012Assignee: Unisantis Electronics Singapore PTE Ltd.Inventors: Fujio Masuoka, Hiroki Nakamura
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Publication number: 20120025276Abstract: By incorporating germanium material into thermal sensing diode structures, the sensitivity thereof may be significantly increased. In some illustrative embodiments, the process for incorporating the germanium material may be performed with high compatibility with a process flow for incorporating a silicon/germanium material into P-channel transistors of sophisticated semiconductor devices. Hence, temperature control efficiency may be increased with reduced die area consumption.Type: ApplicationFiled: October 3, 2011Publication date: February 2, 2012Inventors: Rolf Stephan, Markus Forsberg, Gert Burbach, Anthony Mowry
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Publication number: 20120025343Abstract: A thermoelectric device having a variable cross-section connecting structure includes a first electrode, a second electrode, and a connecting structure connecting the first electrode and the second electrode. The connecting structure has a first section and a second section. The width of the second section is greater than the width of the first section, and the width of the first section is less than a width that is approximately equivalent to a phonon mean free path through the first section.Type: ApplicationFiled: April 15, 2009Publication date: February 2, 2012Inventors: Philip J. Kuekes, Alexandre M. Bratkovski, Hans S. Cho, Nathaniel J. Quitoriano, Theodore I. Kamins, R. Stanley Williams
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Publication number: 20120024335Abstract: The present invention provides a multi-layered thermoelectric device and a method of manufacturing the same. The method for manufacturing a multi-layered thermoelectric device includes the steps of: forming a P-type semiconductor and an N-type semiconductor in a sheet type by mixing thermoelectric semiconductor materials at a preset component ratio; cutting the sheets according to a preset specification of the thermoelectric device; stacking sheets which are made by mixing the thermoelectric semiconductor materials at a preset component ratio and are cut into the same size for each of them; and forming a final thermoelectric device by compressing the stacked sheets. By using the method, scattering phenomenon due to a short wavelength of phonon occurs at a boundary of each layer, which results in active scattering of phonon. Therefore, it is possible to expect an effect of improving a thermoelectric figure of merit of a thermoelectric device.Type: ApplicationFiled: November 16, 2010Publication date: February 2, 2012Inventors: Sung Ho LEE, Yong Suk Kim, Young Soo Oh, Tae Kon Koo, Sung Kwon Wi
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Patent number: 8104951Abstract: Methods and apparatus for measuring substrate uniformity is provided. The invention includes placing a substrate in a thermal processing chamber, rotating the substrate while the substrate is heated, measuring a temperature of the substrate at a plurality of radial locations as the substrate rotates, correlating each temperature measurement with a location on the substrate, and generating a temperature contour map for the substrate based on the correlated temperature measurements. Numerous other aspects are provided.Type: GrantFiled: July 30, 2007Date of Patent: January 31, 2012Assignee: Applied Materials, Inc.Inventors: Wolfgang Aderhold, Andreas G. Hegedus, Nir Merry
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Patent number: 8105859Abstract: A method for fabricating a phase change memory device including a plurality of in via phase change memory cells includes forming pillar heaters formed of a conductive material along a contact surface of a substrate corresponding to each of an array of conductive contacts to be connected to access circuitry, forming a dielectric layer along exposed areas of the substrate surrounding the pillar heaters, forming an interlevel dielectric (ILD) layer above the dielectric layer, etching a via to the dielectric layer, each via corresponding to each of pillar heater such that an upper surface of each pillar heater is exposed within each via, recessing each pillar heater, depositing phase change material in each via on each recessed pillar heater, recessing the phase change material within each via, and forming a top electrode within the via on the phase change material.Type: GrantFiled: September 9, 2009Date of Patent: January 31, 2012Assignee: International Business Machines CorporationInventors: Matthew J. Breitwisch, Roger W. Cheek, Eric A. Joseph, Chung H. Lam, Alejandro G. Schrott
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Publication number: 20120021551Abstract: A compact, high-performance thermoelectric conversion module includes a laminate having a plurality of insulating layers, p-type thermoelectric semiconductors and n-type thermoelectric semiconductors formed by a technique for manufacturing a multilayer circuit board, particularly a technique for forming a via-conductor. Pairs of the p-type thermoelectric semiconductors and the n-type thermoelectric semiconductors are electrically connected to each other in series through p-n connection conductors to define thermoelectric conversion element pairs. The thermoelectric conversion element pairs are connected in series through, for example, series wiring conductors. The thermoelectric semiconductors each have a plurality of portions in which the peak temperatures of thermoelectric figures of merit are different from each other. These portions are distributed in the stacking direction of the laminate.Type: ApplicationFiled: October 4, 2011Publication date: January 26, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Yasuhiro KAWAUCHI, Takanori NAKAMURA
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Publication number: 20120017962Abstract: Electrical energy is generated in a device that includes an integrated circuit which produces thermal flux when operated. A substrate supports the integrated circuit. A structure is formed in the substrate, that structure having a semiconductor p-n junction thermally coupled to the integrated circuit. Responsive to the thermal flux produced by the integrated circuit, the structure generates electrical energy. The generated electrical energy may be stored for use by the integrated circuit.Type: ApplicationFiled: July 20, 2011Publication date: January 26, 2012Applicant: STMicroelectronics (Crolles 2) SASInventors: Thomas Skotnicki, Stephane Monfray
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Publication number: 20120017964Abstract: An apparatus, system, and method for a thermoelectric generator. In some embodiments, the thermoelectric generator comprises a first thermoelectric region and a second thermoelectric region, where the second thermoelectric region may be coupled to the first thermoelectric region by a first conductor. In some embodiments, a second conductor may be coupled to the first thermoelectric region and a third conductor may be coupled to the second thermoelectric region. In some embodiments, the first conductor may be in a first plane, the first thermoelectric region and the second thermoelectric region may be in a second plane, and the second conductor and the third conductor may be in a third plane.Type: ApplicationFiled: July 19, 2011Publication date: January 26, 2012Inventors: Muhammad M. Hussain, Hossain M. Fahad, Jhonathan P. Rojas
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Patent number: 8101449Abstract: A process for altering the thermoelectric properties of an electrically conductive material is provided. The process includes providing an electrically conducting material and a substrate. The electrically conducting material is brought into contact with the substrate. A thermal gradient can be applied to the electrically conducting material and a voltage applied to the substrate. In this manner, the electrical conductivity, the thermoelectric power and/or the thermal conductivity of the electrically conductive material can be altered and the figure of merit increased.Type: GrantFiled: December 8, 2008Date of Patent: January 24, 2012Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., University of California, BerkeleyInventors: Wenjie Liang, Allon Hochbaum, Melissa Fardy, Minjuan Zhang, Peidong Yang
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Patent number: 8103136Abstract: Thermo-optical devices providing heater recirculation in an integrated optical device are described. The thermo-optical devices include at least one waveguide having a non-linear path length in thermal communication with a thermal device. Methods of fabrication and use are also disclosed.Type: GrantFiled: September 10, 2009Date of Patent: January 24, 2012Assignee: Infinera CorporationInventors: Wei Chen, Wenlu Chen