Temperature Patents (Class 257/467)
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Patent number: 8258509Abstract: A micro vacuum gauge includes a substrate, a floating structure that is held above the substrate by a supporting structure extending from the substrate in a state where the floating structure is thermally isolated from the substrate, a heat generator that is arranged in the floating structure to generate heat, and a temperature sensor that is arranged in the floating structure to measure a difference in temperature between the substrate and the floating structure. A second member having a lower emissivity than a first member surrounding the heat generator and the temperature sensor is formed at least on a surface of the floating structure by being joined to the first member.Type: GrantFiled: January 30, 2009Date of Patent: September 4, 2012Assignee: The Ritsumeikan TrustInventor: Masafuni Kimata
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Patent number: 8258597Abstract: A pyroelectric detector includes a support member, a capacitor and a fixing part. The support member includes a first side and a second side opposite from the first side, with the first side facing a cavity. The capacitor includes a pyroelectric body between a first electrode and a second electrode such that an amount of polarization varies based on a temperature. The capacitor is mounted and supported on the second side of the support member with the first electrode being disposed on the second side of the support member. A thermal conductance of the first electrode is less than a thermal conductance of the second electrode. The fixing part supports the support member.Type: GrantFiled: March 23, 2011Date of Patent: September 4, 2012Assignee: Seiko Epson CorporationInventors: Takafumi Noda, Jun Takizawa
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Publication number: 20120217608Abstract: An integrated thermoelectric device in semiconductor technology comprising a hot side arranged in proximity to a heat source, and a cold side, providing a signal according to the temperature difference between the hot and cold sides. The hot and cold sides are arranged in such a way that their temperatures tend to equal out when the temperature of the heat source varies, i.e. when the sensor is in poor operating conditions. A measuring circuit provides useful information according to a continuously variable portion of the signal from a time when the temperature of the heat source varies. If the temperature of the heat source ceases to vary, the temperatures of the hot and cold sides eventually equal out and the signal is annulled and ceases to vary. The distance between the hot and cold sides can be less than 100 ?m.Type: ApplicationFiled: July 26, 2010Publication date: August 30, 2012Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, ST - ERICSSON (GRENOBLE) SASInventors: Vincent Remondière, Guillaume Savelli, Marc Plissonnier, Denis Cottin
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Publication number: 20120211857Abstract: A pyroelectric detector includes a substrate, a support member and a pyroelectric detection element, which includes a capacitor, first and second reducing gas barrier layers, an insulating layer, a plug and a second electrode wiring layer. The first reducing gas barrier layer covers at least a second electrode and a pyroelectric body of the capacitor, and has a first opening that overlaps the second electrode in plan view. The insulating layer covers at least the first reducing gas barrier layer, and has a second opening that overlaps the first opening in plan view. The plug is disposed in the first and second openings and connected to the second electrode. The second electrode wiring layer is formed on the insulating layer and connected to the plug. The second reducing gas barrier layer is formed on the insulating layer and the second electrode wiring layer and covers at least the plug.Type: ApplicationFiled: February 13, 2012Publication date: August 23, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Takafumi NODA
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Publication number: 20120211858Abstract: A thermal detector includes a substrate, a thermal detection element and a support member. The substrate has a recess part with a bottom surface of the recess part being a curved light-reflecting surface. The thermal detection element has a light-absorbing film. The support member supports the thermal detection element. The substrate and the support member are arranged to form a hollow part therebetween. The support member includes a light-absorbing part in which impurities are dispersed in polycrystalline silicon with the light-absorbing part being arranged in at least a part of a surface of the support member facing toward the hollow part so that the light-absorbing part being irradiated by light.Type: ApplicationFiled: February 17, 2012Publication date: August 23, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Yasushi TSUCHIYA
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Publication number: 20120187519Abstract: A pump having: a cavity formed inside an insulating substrate, the upper part of the substrate being situated near the cavity having an edge; a conductive layer covering the inside of the cavity up to the edge and optionally covering the edge itself; a flexible membrane made of a conductive material placed above the cavity and resting against the edge; a dielectric layer covering the conductive layer or the membrane whereby insulating the portions of the conductive layer and of the membrane that are near one another; at least one aeration line formed in the insulating substrate that opens into the cavity via an opening in the conductive layer, and; terminals for applying a voltage between the conductive layer and the membrane.Type: ApplicationFiled: March 30, 2012Publication date: July 26, 2012Applicant: STMicroelectronics S.A.Inventor: Guillaume Bouche
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Publication number: 20120181651Abstract: A temperature sensor, based on magnetic tunneling junction (MTJ) device, includes an MTJ device, a PMOS device and an analog switch. Source electrode of the PMOS device is connected to a power supply; drain electrode of the PMOS device is connected to an input terminal of the MTJ device and is connected to the voltage output terminal of the temperature sensor; an output terminal of the MTJ device is connected to a ground or a circuit via the analog switch; drain electrode of the PMOS device is short circuited with gate electrode of the PMOS device. A negative input terminal of an operational amplifier is connected to the voltage output terminal and a positive input terminal of the operational amplifier is connected to a reference voltage. The sensor is compatible with CMOS process and able to simultaneously perform functions such as temperature detection, over-temperature protection and over-current protection.Type: ApplicationFiled: January 13, 2012Publication date: July 19, 2012Applicant: NORTH CHINA UNIVERSITY OF TECHNOLOGYInventor: Yanfeng Jiang
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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: 8212282Abstract: A power supply device is disclosed that is able to satisfy the power requirements of a device in service and has high efficiency. The power supply device includes a first power supply; a voltage step-up unit that steps up an output voltage of the first power supply; a voltage step-down unit that steps down an output voltage of the voltage step-up unit; and a load that is driven to operate by an output voltage of the voltage step-down unit. The voltage step-up unit steps up the output voltage of the first power supply to a lower limit of an operating voltage of the voltage step-down unit.Type: GrantFiled: September 24, 2010Date of Patent: July 3, 2012Assignee: Ricoh Company, Ltd.Inventors: Masaya Ohtsuka, Yoshinori Ueda
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Publication number: 20120161273Abstract: A thermoelectric conversion material is provided, in which only a desired crystal is selectively precipitated. An MxV2O5 crystal is selectively precipitated in vanadium-based glass, wherein M is one metal element selected from the group consisting of iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese, nickel, copper, silver, an alkali metal and an alkaline earth metal, and 0<x<1.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Inventors: Tadashi Fujieda, Takashi Naito, Takuya Aoyagi
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Publication number: 20120161260Abstract: Measures are introduced to make possible a low-cost packaging of sensor chips having a media access. For this purpose, the sensor chip is first mounted on a substrate and is contacted. The sensor chip is then at least partially embedded in a molding compound. Finally, at least one portion of the media access is produced by the subsequent structuring of the molding compound.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Inventors: Uwe HANSEN, Lutz Rauscher
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Publication number: 20120163413Abstract: A semiconductor device, memory device, system, and method of using a stacked structure for stably transmitting signals among a plurality of semiconductor layers is disclosed. The device includes at least a first semiconductor chip including a first temperature sensor circuit configured to output first temperature information related to the first semiconductor chip, and at least one through substrate via.Type: ApplicationFiled: July 6, 2011Publication date: June 28, 2012Inventors: Jung-sik Kim, Dong-hyuk Lee, Ho-cheol Lee, Jang-woo Ryu
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Patent number: 8198697Abstract: An IGBT is disclosed which separated into two groups (first and second IGBT portions). First and second Zener diodes each composed of series-connected Zener diode parts are disposed so as to correspond to the groups respectively. Each of the first and second Zener diodes has an anode side connected to a corresponding one of first and second polysilicon gate wirings, and a cathode side connected to an emitter electrode. Temperature dependence of a forward voltage drop of each of first and second Zener diodes is used for reducing a gate voltage of a group rising in temperature to throttle a current flowing in the group and reduce the temperature of the group to thereby attain equalization of the temperature distribution in a surface of a chip. In this manner, it is possible to provide an MOS type semiconductor device in which equalization of the temperature distribution in a surface of a chip or among chips can be attained.Type: GrantFiled: June 16, 2010Date of Patent: June 12, 2012Assignee: Fuji Electric Co., Ltd.Inventors: Seiji Momota, Hitoshi Abe, Takeshi Fujii
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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: 20120139078Abstract: A sensor for detecting intensity of radiation such as of infrared radiation includes an ROIC substrate (9) and a resistance element (1) arranged at a distance of the surface of the ROIC substrate. The resistance element comprises one more semiconducting layers such as a silicon semiconducting layer and a semiconducting layer of a silicon-germanium alloy forming a heterojunction. The semiconducting layer or layers can be doped with one or more impurity dopants, the doping level or levels selected so that the layer retains the basic crystallographic properties of the respective material such as those of monosilicon or a monocrystalline silicon-germanium alloy. The impurity dopants are selected from the elements in groups IE, IV, and V, in particular among boron, aluminium, indium, arsenic, phosphorous, antimony, germanium, carbon and tin. The doping can be abrupt so that there is an interior layer inside said semiconducting layer or layers having a significantly higher doping level.Type: ApplicationFiled: June 17, 2010Publication date: June 7, 2012Inventor: Gunnar Malm
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Publication number: 20120139077Abstract: Here, an apparatus is provided. The apparatus generally comprises a substrate and a thermopile. The thermopile includes a cavity that is etched into the substrate, a functional area that is formed over the substrate (where the cavity is generally coextensive with the functional area), and a metal ring formed over the substrate along the periphery of the functional area (where the metal ring is thermally coupled to the substrate).Type: ApplicationFiled: December 7, 2010Publication date: June 7, 2012Applicant: Texas Instruments IncorporatedInventors: Walter Meinel, Kalin V. Lazarov
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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: 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: 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: 20120126345Abstract: A MEMS device (20) with stress isolation includes elements (28, 30, 32) formed in a first structural layer (24) and elements (68, 70) formed in a second structural layer (26), with the layer (26) being spaced apart from the first structural layer (24). Fabrication methodology (80) entails forming (92, 94, 104) junctions (72, 74) between the layers (24, 26). The junctions (72, 74) connect corresponding elements (30, 32) of the first layer (24) with elements (68, 70) of the second layer (26). The fabrication methodology (80) further entails releasing the structural layers (24, 26) from an underlying substrate (22) so that all of the elements (30, 32, 68, 70) are suspended above the substrate (22) of the MEMS device (20), wherein attachment of the elements (30, 32, 68, 70) with the substrate (22) occurs only at a central area (46) of the substrate (22).Type: ApplicationFiled: February 3, 2012Publication date: May 24, 2012Applicant: FREESCALE SEMICONDUCTOR, INC.Inventor: Aaron A. Geisberger
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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: 8183456Abstract: An improved circular multi-element semiconductor thermoelectric hybrid utilizes a make-before-break high frequency switching output component to provide nominal alternating current voltage outputs. Overall efficiency of heat conversion is improved by coupling a chiller to the thermoelectric generator where exhaust heat produces chilled liquid or air that is conveyed to the cold side of the thermoelectric device. The thermoelectric generator is used in a variety of transportation vehicles including manufactured vehicles, retrofitted vehicles and vehicle power combinations.Type: GrantFiled: September 8, 2006Date of Patent: May 22, 2012Inventors: Jon Murray Schroeder, Gerald Philip Hirsch
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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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Patent number: 8169046Abstract: A light emitting diode (LED) includes a substrate, a temperature detecting pattern, and a semiconductor structure. The temperature detecting pattern is formed on the substrate. Then the semiconductor structure is formed on the temperature detecting pattern and the substrate. The semiconductor structure includes an n-type semiconductor layer, a p-type semiconductor layer, and an active layer. Per above-mentioned structural design, the temperature detecting pattern directly integrated into the LED can measure the actual temperature of PN junction with high precision.Type: GrantFiled: September 22, 2009Date of Patent: May 1, 2012Assignees: Silitek Electronic (Guangzhou) Co., Ltd., Lite-On Technology CorporationInventor: Chen-Yu Chen
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Publication number: 20120101540Abstract: A medical device includes a first substrate, a second substrate, a control module, and an energy storage device. The first substrate includes at least one of a first semiconductor material and a first insulating material. The second substrate includes at least one of a second semiconductor material and a second insulating material. The second substrate is bonded to the first substrate such that the first and second substrates define an enclosed cavity between the first and second substrates. The control module is disposed within the enclosed cavity. The control module is configured to at least one of determine a physiological parameter of a patient and deliver electrical stimulation to the patient. The energy storage device is disposed within the cavity and is configured to supply power to the control module.Type: ApplicationFiled: January 28, 2011Publication date: April 26, 2012Applicant: MEDTRONIC, INC.Inventors: Richard J. O'Brien, John K. Day, Paul F. Gerrish, Michael F. Mattes, David A. Ruben, Malcolm K. Grief
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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: 20120086098Abstract: There has been very little (if any) attention to address contamination diffusion within an integrated circuit (IC) because there are very few applications where a protective overcoat will be penetrated as part of the manufacturing process. Here, a sealing ring is provided that address this problem. Preferably, the sealing ring uses the combination of electrically conductive barrier rings and the tortuous migration path to allow an electronic device (i.e., thermopile), where a protective overcoat is penetrated during manufacture, to communicate with external devices while being isolated to prevent contamination.Type: ApplicationFiled: October 7, 2010Publication date: April 12, 2012Applicant: Texas Instruments IncorporatedInventors: Walter Meinel, Kalin V. Lazarov
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Publication number: 20120080764Abstract: A MEMS package includes a substrate having an L-shaped cross-section. The substrate includes a vertical portion having a front surface and a back surface, and a horizontal portion protruding from a lower part of the front surface of the vertical portion, wherein the front surface of the vertical portion includes a mounting region. A MEMS die is mounted on the mounting region such that the MEMS die is oriented substantially parallel to the front surface; a lid attached to the front surface of the substrate while covering the MEMS die; and a plurality of leads formed on a bottom surface of the substrate. The leads can extend substantially parallel to one another, and substantially perpendicular to the front surface. The MEMS die can be oriented substantially perpendicular to a PCB substrate on which the package is mounted.Type: ApplicationFiled: April 12, 2011Publication date: April 5, 2012Applicant: ANALOG DEVICES, INC.Inventor: Xiaojie Xue
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Patent number: 8148808Abstract: Partitioning electronic sensor packages is provided. The electronic sensor package includes an electronic component, a sensor device, and electrical connections between the electronic component and the sensor device. A dam is written in the electronic sensor package to partition the package into two or more sections, where the sensor device is situated at least partially in one section and the electronic component is situated at least partially in another section. The partitioning of the dam allows the two sections to be filled with different fill materials. For example, the section with the sensor device can be filled with a soft gel-like material to provide some moisture protection to the sensor device without causing detrimental stresses to the sensor device, while the section with the electronic component can be filled with a highly moisture protective epoxy.Type: GrantFiled: June 2, 2008Date of Patent: April 3, 2012Assignee: LV Sensors, Inc.Inventors: Jeffrey S. Braden, Elizabeth A. Logan
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Publication number: 20120074514Abstract: A sensor wafer may be configured for in-situ measurements of parameters during an etch process. The sensor wafer may include a substrate, a cover, and one or more components positioned between the substrate and the cover. An etch-resistant coating is formed on one or more surfaces of the cover and/or substrate. The coating is configured to resist etch processes that etch the cover and/or substrate for a longer period than standard thin film materials of the same or greater thickness than the protective coating.Type: ApplicationFiled: September 28, 2010Publication date: March 29, 2012Applicant: KLA-Tencor CorporationInventors: ANDREW NGUYEN, FARHAT QULI, MEI SUN, VASUDEV VENKATESAN
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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: 20120068296Abstract: Provided is a semiconductor device capable of reducing a temperature-dependent variation of a current sense ratio and accurately detecting current In the semiconductor device, at least one of an impurity concentration and a thickness of each semiconductor layer is adjusted such that a value calculated by a following equation is less than a predetermined value: [ ? i = 1 n ? ( R Mi × k Mi ) - ? i = 1 n ? ( R Si × k Si ) ] / ? i = 1 n ? ( R Mi × k Mi ) where a temperature-dependent resistance changing rate of an i-th semiconductor layer (i=1 to n) of the main element domain is RMi; a resistance ratio of the i-th semiconductor layer of the main element domain relative to the entire main element domain is kMi; a temperature-dependent resistance changing rate of the i-th semiconductor layer of the sense element domain is RSi; and a resistance ratio of the i-th semiconductor layer of the sense element domain to the entire sense element domain is kSi.Type: ApplicationFiled: May 29, 2009Publication date: March 22, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hidefumi Takaya, Kimimori Hamada, Yuji Nishibe
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Publication number: 20120056281Abstract: A method that includes forming an opening between at least one first electrode and a second electrode by forming a recess in a first electrode layer, the recess having sidewalls that correspond to a surface of the at least one first electrode, forming a first sacrificial layer on the sidewalls of the recess, the first sacrificial layer having a first width that corresponds to a second width of the opening, forming a second electrode layer in the recess that corresponds to the second electrode, and removing the first sacrificial layer to form the opening between the second electrode and the at least one first electrode.Type: ApplicationFiled: August 29, 2011Publication date: March 8, 2012Applicant: STMICROELECTRONICS, INC.Inventors: Venkatesh Mohanakrishnaswamy, Loi N. Nguyen
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Publication number: 20120049313Abstract: An uncooled infrared image sensor according to an embodiments includes: a plurality of pixel cells formed in a first region on a semiconductor substrate; a reference pixel cell formed in a second region on the semiconductor substrate and corresponding to each row or each column of the pixel cells; a supporting unit formed for each of the pixel cell and supporting a corresponding pixel cell; and an interconnect unit formed for each reference pixel cell. Each of the pixel cells includes: a first infrared absorption film and a first heat sensitive element. The reference pixel cell includes: a second infrared absorption film and a second heat sensitive element, the second heat sensitive element having the same characteristics as characteristics of the first heat sensitive element. The third and fourth interconnects of the interconnect unit have the same electrical resistance as electrical resistance of the first and second interconnects of the supporting unit.Type: ApplicationFiled: March 17, 2011Publication date: March 1, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Honam KWON, Hideyuki FUNAKI, Hiroto HONDA, Hitoshi YAGI, Ikuo FUJIWARA, Masaki ATSUTA, Kazuhiro SUZUKI, Keita SASAKI, Koichi ISHII
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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: 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: 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: 8120133Abstract: A micro-electromechanical actuator employs metal for the hot arm and silicon for at least the flexible portion of the cold arm. The cold arm made of silicon is coupled to a metal wire that moves with it and is used to carry the signal to be switched when at least two of such actuators are formed into a switch. Arrays of such switches on a first chip may be cooperatively arranged with a second chip that is flip-chip bonded to the first chip, the second chip having thereon wires routing the electrical control currents to the various hot arms for heating them as well as the signals to be switched by the various switches.Type: GrantFiled: September 11, 2006Date of Patent: February 21, 2012Assignee: Alcatel LucentInventor: Flavio Pardo
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Patent number: 8120134Abstract: A diode and memory device including the diode, where the diode includes a conductive portion and another portion formed of a first material that has characteristics allowing a first decrease in a resistivity of the material upon application of a voltage to the material, thereby allowing current to flow there through, and has further characteristics allowing a second decrease in the resistivity of the first material in response to an increase in temperature of the first material.Type: GrantFiled: October 15, 2009Date of Patent: February 21, 2012Assignee: Micron Technology, Inc.Inventors: Gurtej Sandhu, Bhaskar Srinivasan
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Patent number: 8120135Abstract: A transistor has a cell array with two or more transistor cells, a temperature sensor, which is integrated in the cell array or is adjacent to the cell array, and an isolation structure. The isolation structure isolates the temperature sensor from the cell array, and has an isolation trench, which is arranged between the cell array and the temperature sensor. The distance between the temperature sensor and the active transistor cell that is closest to the temperature sensor corresponds approximately to the pitch between active transistor cells within the cell array.Type: GrantFiled: February 11, 2010Date of Patent: February 21, 2012Assignee: Infineon Technologies AGInventors: Norbert Krischke, Nicola Vannucci, Sven Lanzerstorfer, Thomas Ostermann, Mathias Racki, Markus Zundel
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Patent number: 8114686Abstract: A block of phase change material located in a semiconductor chip is reset to an amorphous state. The block of phase change material may be connected to an internal resistance measurement circuit that can transmit the measured resistance data to input/output pads either in an analog output format or in a digital output format. Depending on the ambient temperature, the resistance of the block of phase change material changes. By measuring a fractional resistance change compared to the resistance of the phase change material at a calibration temperature, the temperature of the region around the phase change material can be accurately measured. A logic decoder and an input/output circuit may be employed between the internal resistance measurement circuit and the input/output pads. A plurality of temperature sensing circuits containing phase change material blocks may be employed in the semiconductor chip to enable an accurate temperature profiling during chip operation.Type: GrantFiled: June 21, 2010Date of Patent: February 14, 2012Assignee: International Business Machines CorporationInventors: Nazmul Habib, Chung Hon Lam, Robert McMahon
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Publication number: 20120032283Abstract: A sensor module includes a substrate system which has multiple substrates situated one on top of the other and connected in each case via a wafer bond connection. The substrate system includes at least one first sensor substrate and at least one second sensor substrate, the first sensor substrate having a first sensor structure and the second sensor substrate having a second sensor structure. The first and second sensor structures are designed for detecting different characteristics. At least the first sensor structure includes a micromechanical functional structure. Moreover, a method for manufacturing such a sensor module is disclosed.Type: ApplicationFiled: August 9, 2011Publication date: February 9, 2012Inventors: Jens FREY, Heribert WEBER, Eckhard GRAF
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Publication number: 20120031450Abstract: A thermoelectric semiconductor component, comprising an electrically insulating substrate surface and a plurality of spaced-apart, alternating p-type (4) and n-type semiconductor structural elements (5) which are disposed on said surface and which are connected to each other in series in an electrically conductive manner alternatingly at two opposite ends of the respective semiconductor structural elements by conductive structures, in such a way that a temperature difference (2?T) between the opposite ends produces an electrical voltage between the conductive structures or that a voltage difference between the conductive structures (7, 9; 13, 15) produces a temperature difference (2?T) between the opposite ends, characterized in that the semiconductor structural elements have a first boundary surface between a first and a second silicon layer, the lattice structures of which are considered ideal and are rotated by an angle of rotation relative to each other about a first axis perpendicular to the substrate suType: ApplicationFiled: January 12, 2010Publication date: February 9, 2012Applicant: IHP GmbH - Innovations for High Performance Micro- electronics / Leibniz-Institut fur Innovative MikInventors: Martin Kittler, Manfred Reiche
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Patent number: 8110883Abstract: Electromagnetic radiation detecting and sensing systems using carbon nanotube fabrics and methods of making the same are provided. In certain embodiments of the invention, an electromagnetic radiation detector includes a substrate, a nanotube fabric disposed on the substrate, the nanotube fabric comprising a non-woven network of nanotubes, and first and second conductive terminals, each in electrical communication with the nanotube fabric, the first and second conductive terminals disposed in space relation to one another. Nanotube fabrics may be tuned to be sensitive to a predetermined range of electromagnetic radiation such that exposure to the electromagnetic radiation induces a change in impedance between the first and second conductive terminals. The detectors include microbolometers, themistors and resistive thermal sensors, each constructed with nanotube fabric. Nanotube fabric detector arrays may be formed for broad-range electromagnetic radiation detecting.Type: GrantFiled: March 12, 2008Date of Patent: February 7, 2012Assignee: Nantero Inc.Inventors: Jonathan W. Ward, Elwood James Egerton, Rahul Sen, Brent M. Segal
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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: 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: 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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Publication number: 20120012966Abstract: The present invention discloses a multi-cavity optical sensing and thermopile infrared sensing system, which comprises an optical sensing part, a dielectric layer, a plurality of optical cavities, and a plurality of thermocouples. The dielectric layer covers on the top of the optical sensing part. The optical cavities are formed by a plurality of metal reflectors inside the dielectric layer. The thermocouples are laterally disposed near the bottom of the dielectric layer. In addition, a low temperature region is formed in an area which is the overlapping of vertical projections of such thermocouples and the optical sensing part; a high temperature region is formed by the overlapping of vertical projections of such thermocouples, but without the overlaying which belongs to the vertical projection of the optical sensing part. Therefore, the system can sense the ambient light brightness, color conditions and human blackbody infrared signals within the range of 8-12 micrometers wavelength.Type: ApplicationFiled: March 14, 2011Publication date: January 19, 2012Applicant: CAPELLA MICROSYSTEMS CORP.Inventors: KOON-WING TSANG, Cheng-Chung Shih
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Publication number: 20120007205Abstract: Certain embodiments provide an infrared imaging device including: an SOI structure that is placed at a distance from a substrate, and includes: heat-sensitive diodes that detect infrared rays and convert the infrared rays into heat; and STI regions that separate the heat-sensitive diodes from one another; an interlayer insulating film that is stacked on the SOI structure; and supporting legs that are connected to the heat-sensitive diodes and vertical signal lines provided in outer peripheral regions of the heat-sensitive diodes. Each of the supporting legs includes: an interconnect unit that transmit signals to the vertical signal lines; and interlayer insulating layers that sandwich the interconnect unit, each bottom side of the interlayer insulating layers being located in a higher position than the SOI structure.Type: ApplicationFiled: September 16, 2010Publication date: January 12, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kazuhiro Suzuki, Ikuo Fujiwara, Keita Sasaki, Honam Kwon, Hitoshi Yagi, Hiroto Honda, Koichi Ishii, Masako Ogata, Risako Ueno, Hideyuki Funaki