Temperature Patents (Class 257/467)
  • Publication number: 20090212385
    Abstract: In a semiconductor device including a semiconductor substrate and at least one sensor element made of vanadium oxide formed over the semiconductor substrate, the sensor element is designed so that a density of a current flowing through the sensor element is between 0 and 100 ?A/?m2.
    Type: Application
    Filed: April 29, 2009
    Publication date: August 27, 2009
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: HIROAKI OHKUBO, YASUTAKA NAKASHIBA
  • Publication number: 20090194828
    Abstract: Apparatus, methods, and systems for bonding a cover wafer to a MEMS threshold sensors located on a silicon disc. The cover wafer is trenched to form a region when bonded to the silicon wafer that produces a gap over the contact bond pads of the MEMS threshold sensor. The method includes a series of cuts that remove part of the cover wafer over the trenches to permit additional cuts that may avoid the contact bond pads of the MEMS threshold sensor. In addition the glass frit provides for isolation of the sensor with a hermetic seal. The cavity between the MEMS threshold sensor and the cover wafer may be injected with a gas such as nitrogen to influence the properties of the MEMS threshold sensor. The MEMS threshold sensor may be utilized to sense a threshold for pressure, temperature or acceleration.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 6, 2009
    Inventors: Cornel P. Cobianu, Viorel-Georgel Dumitru, Ion Georgescu
  • Patent number: 7569904
    Abstract: A semiconductor device comprises a plurality of banks, a plurality of control circuits, and a plurality of temperature sensors, wherein each of the plurality of temperature sensors is disposed near at least one of the plurality of banks for sensing the temperature of the area surrounding the at least one of the plurality of banks and for outputting a sense signal corresponding to a sensed temperature, and each of the plurality of control circuits outputs at least one control signal, for controlling an operation of the at least one of the plurality of banks, to the at least one of the plurality of banks based on the sense signal.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: August 4, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boa-Yeong Oh, Sang-Seok Kang, Kyoung-Moo Kim
  • Patent number: 7569763
    Abstract: A solid-state energy converter with a semiconductor or semiconductor-metal implementation is provided for conversion of thermal energy to electric energy, or electric energy to refrigeration. In n-type heat-to-electricity embodiments, a highly doped n* emitter region made of a metal or semiconductor injects carriers into an n-type gap region. A p-type layer is positioned between the emitter region and gap region, allowing for discontinuity of corresponding Fermi-levels and forming a potential barrier to sort electrons by energy. Additional p-type layers can optionally be formed on the collector side of the converter. One type of these layers with higher carrier concentration (p*) serves as a blocking layer at the cold side of the converter, and another layer (p**) with carrier concentration close to the gap reduces a thermoelectric back flow component. Ohmic contacts on both sides of the device close the electrical circuit through an external load to convert heat to electricity.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: August 4, 2009
    Assignee: Micropower Global Limited
    Inventors: Yan R. Kucherov, Peter L. Hagelstein
  • Publication number: 20090189239
    Abstract: A thermoelectric module has a first substrate, a second substrate spaced from the first substrate, a plurality of P type thermoelectric elements and N type thermoelectric elements arranged in the space between the first and second substrates, and a plurality of electrodes which connect the P type and N type thermoelectric elements in series. Each electrode is connected to a respective one of the plurality of P type thermoelectric elements at a first connection and a respective one of the plurality of N type thermoelectric elements in the space, and a sealant is located at an edge portion of the space. Each one of a series of first or outer electrodes closest to the edge portion of the space has a concave portion that is concaved in a direction departing from the edge portion of the space and is at a position between the first connection and the second connection.
    Type: Application
    Filed: January 27, 2009
    Publication date: July 30, 2009
    Applicant: KYOCERA CORPORATION
    Inventors: Kouji Tokunaga, Kenichi Tajima
  • Publication number: 20090173933
    Abstract: A silicon/germanium (SiGe) superlattice thermal sensor is provided with a corresponding fabrication method. The method forms an active CMOS device in a first Si substrate, and a SiGe superlattice structure on a second Si-on-insulator (SOI) substrate. The first substrate is bonded to the second substrate, forming a bonded substrate. An electrical connection is formed between the SiGe superlattice structure and the CMOS device, and a cavity is formed between the SiGe superlattice structure and the bonded substrate.
    Type: Application
    Filed: September 23, 2008
    Publication date: July 9, 2009
    Inventors: Jer-Shen Maa, Jinke Tang, Jong-Jan Lee, Douglas J. Tweet, Sheng Teng Hsu
  • Patent number: 7547953
    Abstract: Gallium oxide films for sensing gas comprise Ga2O3 and have a porosity of at least about 30%. Such films can be formed by coating a substrate with a solution comprising: a gallium salt and a porogen comprising an organic compound comprising a hydrophilic chain and a hydrophobic chain; and heating the substrate to a temperature in the range from about 400° C. to about 600° C. while exposing the substrate to an oxygen-containing source to convert the gallium salt to a gallium oxide.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: June 16, 2009
    Assignee: General Electric Company
    Inventors: Anthony Yu-Chung Ku, Steven Alfred Tysoe, Vinayak Tilak, Peter Micah Sandvik, Sergio Paulo Martins Loureiro, James Anthony Ruud, Anis Zribi, Wei-Cheng Tian
  • Patent number: 7544940
    Abstract: In a semiconductor device including a semiconductor substrate, and at least one sensor element made of vanadium oxide formed over the semiconductor substrate, the sensor element is designed so that a density of a current flowing through the sensor element is between 0 and 100 ?A/?m2.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: June 9, 2009
    Assignee: NEC Electronics Corporation
    Inventors: Hiroaki Ohkubo, Yasutaka Nakashiba
  • Publication number: 20090140369
    Abstract: Provided are a semiconductor power module package and a method of fabricating the same. The semiconductor power module package includes a substrate, semiconductor chips arranged on a top surface of the substrate, and a temperature sensor mounted on a top surface of at least one of the semiconductor chips. The semiconductor chips and the temperature sensor are electrically connected to each other through leads. A sealing material covers the top surface of the substrate, the semiconductor chips, and the temperature sensor except for portions of the leads and a bottom surface of the substrate. The temperature sensor may include a thermistor, and the thermistor may include first and second electrode terminals connected to corresponding leads of the leads. A first wiring pattern may be in contact with the first electrode terminal, and a second wiring pattern may be in contact with the second electrode terminal.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Inventor: Keun-hyuk Lee
  • Publication number: 20090127549
    Abstract: A thermionic or thermotunneling generator or heat pump is disclosed, comprising electrodes substantially facing one another and separated by spacers disposed between the electrodes, wherein the substrate material for the cathode is preferably a single crystalline silicon wafer while the substrate for the anode is an organic wafer, and preferably a polished polyimide (PI) wafer. On the cathode side, standard silicon wafer processes create the 10-1000 nm thin spacers and edge seals from thermally grown oxide. Either wafer is partially covered with a thin film of material that is characterized by high electrical conductivity and low work function. In one embodiment, the cathode is partially covered with a thin film of Ag—Cs—O. In another embodiment, the anode is additionally covered with a thin film of Ag—Cs—O, in which case the work function of the cathode coating material is reduced further utilizing an Avto Metal structure of nanoscale patterned indents.
    Type: Application
    Filed: September 24, 2008
    Publication date: May 21, 2009
    Inventor: Hans Juergen Walitzki
  • Patent number: 7535020
    Abstract: Systems and methods for positioning thermal sensors within an integrated circuit in a manner that provides useful thermal measurements corresponding to different parts of the integrated circuit. In one embodiment, an integrated circuit includes multiple, duplicate functional blocks. A separate thermal sensor is coupled to each of the duplicate functional blocks, preferably in the same relative location on each of the duplicate functional blocks, and preferably at a hotspot. One embodiment also includes thermal sensors on one or more functional blocks of other types in the integrated circuit. One embodiment includes a thermal sensor positioned at a cool spot, such as at the edge of the integrated circuit chip. Each of the thermal sensors may have ports to enable power and ground connections or data connections between the sensors and external components or devices.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: May 19, 2009
    Assignees: Kabushiki Kaisha Toshiba, International Business Machines Corporation, Sony Computer Entertainment Inc.
    Inventors: Munehiro Yoshida, Daniel Stasiak, Michael F. Wang, Charles R. Johns, Hiroki Kihara, Tetsuji Tamura, Kazuaki Yazawa, Iwao Takiguchi
  • Patent number: 7510323
    Abstract: A compact resistive thermal sensor is provided for an integrated circuit (IC), wherein different sensor components are placed on different layers of the IC. This allows the lateral area needed for the sensor resistance wire on any particular IC layer to be selectively reduced. In a useful embodiment, a conductive element extending between first and second layers for connecting said first and second conductive paths into a single continuous conductive path having a resistance that varies with temperature. The sensor is responsive to electric current sent through said continuous path for determining temperature proximate to said continuous path from said path resistance.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: March 31, 2009
    Assignee: International Business Machines Corporation
    Inventors: Aquilur Rahman, Lloyd Andre Walls
  • Patent number: 7504658
    Abstract: The present invention relates to a sensor element which has a semiconductor structure based on a Group III-nitride. The semiconductor sensor element serves for determining the pressure, the temperature, a force, a deflection or an acceleration. It has a substrate base 1, disposed thereon, a homogeneous semiconductor layer based on a Group III-nitride, the surface of the homogeneous semiconductor layer 2 orientated towards the substrate base 1 having at least partially a spacing from the surface of the substrate base orientated towards the homogeneous semiconductor layer 2, 2f, and being distinguished in that at least two electrical conducting contacts 5 for conducting an electrical output signal, which can be generated by the homogeneous semiconductor layer 2, 2f, are disposed on, at or under the homogeneous semiconductor layer 2, 2f or are integrated in the latter.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: March 17, 2009
    Inventors: Mike Kunze, Ingo Daumiller, Peter Benkart, Erhard Kohn
  • Publication number: 20090026570
    Abstract: Methods and structures for discharging plasma formed during the fabrication of semiconductor device are disclosed. The semiconductor device includes a wordline, a common ground line and a fuse structure for electrically coupling the wordline and the common ground line until a break signal is applied via the fuse structure.
    Type: Application
    Filed: December 20, 2007
    Publication date: January 29, 2009
    Inventors: Masahiko Higashi, Naoki Takeguchi
  • Publication number: 20090026571
    Abstract: A solid-state imaging device includes first pixels and second pixels. Each of the first pixels and the second pixels includes a p-type diffusion layer formed in a semiconductor substrate and an n-type diffusion layer formed on the p-type diffusion layer. A first p-type implantation layer is formed on a surface side of the semiconductor substrate on the n-type diffusion layer of the first pixels. A second p-type implantation layer having a lower impurity concentration than the first p-type implantation layer or no p-type implantation layer is formed on a surface side of the semiconductor substrate on the n-type diffusion layer of the second pixels.
    Type: Application
    Filed: April 15, 2008
    Publication date: January 29, 2009
    Inventors: Makoto Inagaki, Masanori Kyougoku
  • Publication number: 20090028213
    Abstract: According to one embodiment of the present invention, a temperature sensor is provided, including a first electrode, a second electrode, a nanoporous material disposed between the first electrode and the second electrode, and a diffusion material which is located outside the nanoporous material that is capable of diffusion into the nanoporous material. The amount of diffusion material diffusing into the nanoporous material is dependent on the temperature to which the temperature sensor is exposed. The resistance of the nanoporous material is dependent on the amount of diffusion material diffusing into the nanoporous material.
    Type: Application
    Filed: July 24, 2007
    Publication date: January 29, 2009
    Inventor: Michael Kund
  • Patent number: 7471184
    Abstract: An apparatus comprising a microelectromechanical system (MEMS) device. The MEMS device includes a substrate having an anchoring pad thereon and a structural element. The structural element has a beam that includes a first part and a second part. The first part is attached to both the anchoring pad and to the second part. The second part is movable with respect to the substrate and made of an electrically conductive material. Additionally, at least one of the following conditions hold: the first part is made of a material having: a first yield stress that is greater than a second yield stress of the electrically conductive material of the second part; a fatigue resistance that is greater than a second fatigue resistance of the electrically conductive material of the second part; or, a creep rate that is less than a second creep rate of the electrically conductive material of the second part.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: December 30, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Vladimir Anatolyevich Aksyuk, Flavio Pardo, Maria Elina Simon
  • Patent number: 7462921
    Abstract: A vanadium oxide film is formed on an interlayer insulating layer, and a silicon oxide film and a silicon nitride film are formed on the vanadium oxide film in this order. With a resist pattern used as a mask, the silicon nitride film is patterned. Then, the resist pattern is removed using a stripping solution or oxygen plasma ashing. Next, with the patterned silicon nitride film used as a mask, the silicon oxide film and the vanadium oxide film are etched to form a resistor film of vanadium oxide.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: December 9, 2008
    Assignees: NEC Corporation, NEC Electronics Corporation
    Inventors: Naoyoshi Kawahara, Hiroshi Murase, Hiroaki Ohkubo, Yasutaka Nakashiba, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Publication number: 20080298741
    Abstract: An electronic device and method are presented for creating at least one predetermined stimulus at the device output. The device comprises an electrically non-conductive holey structure (110) carrying at least two active electrically conductive cores (C1, C2) electrically insulated from one another along their lengths, for supplying a potential difference (V1, V2) between them, and at least one stimulus creator (S1) configured to be affected by said potential difference to provide a predetermined output of the device.
    Type: Application
    Filed: January 25, 2006
    Publication date: December 4, 2008
    Applicant: BAR ILAN UNIVERSITY
    Inventor: Zeev Zalevsky
  • Patent number: 7439601
    Abstract: Embodiments of the invention include a temperature sensor apparatus, method and system for providing an output voltage response that is linear to the temperature of the integrated circuit to which the temperature sensor belongs and/or the integrated circuit die on which the temperature sensor resides. The output voltage of the temperature sensor has an adjustable gain component and an adjustable voltage offset component that both are adjustable independently based on circuit parameters. The temperature sensor includes a conventional bandgap circuit, which generates an internal PTAT (proportional to absolute temperature) current to produce a bandgap reference voltage, and a current mirror arrangement that provides a scaled current that is proportional to the bandgap circuit's PTAT current. Conventionally, the scaled PTAT current is sourced through an output resistor to provide the output voltage of the temperature sensor.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: October 21, 2008
    Assignee: Agere Systems Inc.
    Inventor: Paul K. Hartley
  • Patent number: 7432123
    Abstract: A method of manufacturing high temperature thermistors. A polycrystalline thermistor body is formed from a material selected from a list consisting of bulk polycrystalline Si with intrinsic conductivity and bulk polycrystalline Ge with intrinsic conductivity. At least one ohmic contact is formed on at least one surface of the polycrystalline thermistor body.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: October 7, 2008
    Assignee: AdSem, Inc.
    Inventor: Michael Kozhukh
  • Publication number: 20080237772
    Abstract: A temperature sensor structure for a semiconductor device. One embodiment provides a semiconductor substrate including the semiconductor device. A dissipation region of the semiconductor device is adjacent to a main surface of the semiconductor substrate. A first layer arrangement is disposed on the main surface of the semiconductor substrate adjacent to the dissipation region of the semiconductor device. A second layer arrangement is disposed on the first layer arrangement with an insulation layer for galvanic separation therebetween. The first and second layer arrangements and the insulation layer form a layer structure on the main surface above the dissipation region. A circuit element is disposed in the second layer arrangement, the circuit element having a temperature-dependent characteristic and being coupled thermally to the dissipation region.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Matthias Stecher, Joachim Weyers
  • Patent number: 7430039
    Abstract: Sensors are provided which enable detection with a high sensitivity in microchemistry and biochemical analysis by using devices integrated into a compact configuration and can be freely disposed on desired positions of a channel to perform detection. A measuring apparatus for detecting information and outputting light according to the information, the apparatus comprising: an active layer for emitting light and a micro-optical cavity, wherein light emission is limited in the active layer due to the influence of the selection of a photoelectromagnetic field mode, the selection is made by the micro-optical cavity, the light emission and a degree of selection of a photoelectromagnetic field mode is changed according to an environmental condition of the micro-optical cavity, so that the light emission is changed and the environmental condition is measured according to a change in the light emission.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: September 30, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mitsuro Sugita
  • Publication number: 20080230106
    Abstract: Methods of forming a microelectronic structure are described. Embodiments of those methods include forming a first plurality of openings through a first surface of a substrate, forming a p-type TFTEC material within the first plurality of openings, forming a second plurality of openings substantially adjacent to the first plurality of openings through the first surface of the substrate, and then forming an n-type TFTEC material within the second plurality of openings.
    Type: Application
    Filed: April 18, 2008
    Publication date: September 25, 2008
    Inventor: Rajashree Baskaran
  • Publication number: 20080230866
    Abstract: A system and method for manufacturing semiconductor wafers comprising an RFID temperature sensor and generally described herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: March 20, 2007
    Publication date: September 25, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: John M. Kulp
  • Patent number: 7416351
    Abstract: The present invention is to provide an optical subassembly with a co-axial package that enables to sense the temperature of the devices mounted within the subassembly with a relatively inexpensive chip thermistor. The subassembly includes a co-axial package and a FPC board to connect the subassembly to the outer circuit. The thermistor is mounted on the FPC board such that one electrode thereof is connected to a pattern formed on a surface opposite to a surface facing the subassembly and the other electrode is soldered to a via hole connecting two surfaces of the FPC board and this via hole is soldered directly to the subassembly.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: August 26, 2008
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Yasushi Fujimura
  • Publication number: 20080191303
    Abstract: A separated MEMS thermal actuator is disclosed which is largely insensitive to creep in the cantilevered beams of the thermal actuator. In the separated MEMS thermal actuator, a inlaid cantilevered drive beam formed in the same plane, but separated from a passive beam by a small gap. Because the inlaid cantilevered drive beam and the passive beam are not directly coupled, any changes in the quiescent position of the inlaid cantilevered drive beam may not be transmitted to the passive beam, if the magnitude of the changes are less than the size of the gap.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 14, 2008
    Applicant: Innovative Micro Technology
    Inventors: Gregory A. Carlson, John S. Foster, Christopher S. Gudeman, Paul J. Rubel
  • Patent number: 7405457
    Abstract: A high temperature NTC thermistor includes a polycrystalline thermistor body, selected from a list consisting of polycrystalline Si with intrinsic conductivity and polycrystalline Ge with intrinsic conductivity. At least one ohmic contact is disposed on at least one surface of the polycrystalline thermistor body.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: July 29, 2008
    Assignee: AdSem, Inc.
    Inventor: Michael Kozhukh
  • Patent number: 7393711
    Abstract: An embodiment of the present invention related to fingerprint sensors is described. The sensor comprises an integrated-circuit chip having a sensitive surface, a substrate provided with electrical connections and wire-bonding wires connecting the chip to the electrical connections. The sensor further includes a molded protective resin at least partly covering the substrate and the chip and completely encapsulating the wire-bonding wires. The resin forms, on at least one side of the chip and at most three sides, a bump rising to at least 500 microns above the sensitive surface, this bump encapsulating the wire-bonding wires and constituting a guide for a finger, the fingerprint of which it is desired to detect.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: July 1, 2008
    Assignee: Atmel Grenoble S.A.
    Inventors: Sébastien Bolis, Cécile Roman
  • Patent number: 7391092
    Abstract: In a semiconductor integrated circuit device, a sheet-like temperature monitor member of vanadium oxide is provided, whose one end is connected to one via while the other end is connected to another via. A sheet-like thermal conducting layer of aluminum is provided below the temperature monitor member. A region equal to or greater than a half of the entire temperature monitor member overlies the thermal conducting layer in a plan view.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: June 24, 2008
    Assignees: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Patent number: 7368784
    Abstract: A thermal protection device is for an integrated power MOSFET transistor including an interdigitated array of source regions and drain regions defined in a well region of the monocrystalline silicon substrate, and gate structures overhanging channel regions defined between adjacent source and drain regions. The thermal protection device may include a temperature sensor and a comparator for generating an over temperature flag signal usable for turning off the overheated power transistor.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: May 6, 2008
    Assignee: STMicroelectronics S.r.l.
    Inventors: Edoardo Botti, Fabio Cagnetti
  • Publication number: 20080101436
    Abstract: An on die thermal sensor includes a bandgap unit for generating a first voltage containing temperature information, a tracking unit for tracking a voltage level of the first voltage, and a low power control unit for generating a tracking enable signal for enabling the tracking unit and disabling the tracking unit after a minimum tracking operation time of the tracking unit elapses.
    Type: Application
    Filed: June 29, 2007
    Publication date: May 1, 2008
    Inventor: Jong-Ho Jung
  • Patent number: 7351996
    Abstract: The present invention comprises a tunneling device in which the collector electrode is modified so that tunneling of higher energy electrons from the emitter electrode to the collector electrode is enhanced. In one embodiment, the collector electrode is contacted with an insulator layer, preferably aluminum or silicon nitride, disposed between the collector and emitter electrodes. The present invention additionally comprises a method for enhancing tunneling of higher energy electrons from an emitter electrode to a collector electrode, the method comprising the step of contacting the collector electrode with an insulator, preferably aluminum or silicon nitride, and placing the insulator between the collector electrode and the emitter electrode.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 1, 2008
    Assignee: Borealis Technical Limited
    Inventors: Avto Tavkhelidze, Vasiko Svanidze, Magnus Larsson
  • Publication number: 20080048285
    Abstract: A laminated wafer sensor structure includes a housing layer having pocket openings formed therein, a circuit layer having a sensor element and electronic components mounted for registration with the pocket openings in the housing layer, and a rigid back layer. The laminated structure is suitable for handling by conventional robotic wafer handling systems. The wafer sensor structure is adapted for electrical connection to a base station that is also adapted for connection to a host computer system to facilitate communication among the sensor structure, the base station and the host computer.
    Type: Application
    Filed: May 10, 2007
    Publication date: February 28, 2008
    Inventors: Jim Schloss, Michele Winz, Sam Mallicoat, Wolfram Urbanek, Guang Li, Larry Potter, Kevin Shea
  • Patent number: 7332358
    Abstract: A MOSFET has its gate voltage controlled to provide a constant drain current of the MOSFET, for example to limit inrush current for charging a capacitance of a power supply arrangement. A decrease in the gate voltage supplied to the MOSFET, corresponding to an increase in the junction temperature of the MOSFET, by more than a determined amount is detected and used to reduce the gate voltage, and hence the drain current, for example to zero, to prevent heating of the MOSFET beyond a maximum operating temperature.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: February 19, 2008
    Assignee: Potentia Semiconductor Inc.
    Inventor: Raymond K. Orr
  • Patent number: 7321157
    Abstract: A method of fabricating a CoSb3-based thermoelectric device is disclosed. The method includes providing a high-temperature electrode, providing a buffer layer on the high-temperature electrode, forming composite n-type and p-type layers, attaching the buffer layer to the composite n-type and p-type layers, providing a low-temperature electrode on the composite n-type and p-type layers and separating the composite n-type and p-type layers from each other to define n-type and p-type legs between the high-temperature electrode and the low-temperature electrode.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: January 22, 2008
    Assignees: GM Global Technology Operations, Inc., Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Lidong Chen, Junfeng Fan, Shengqiang Bai, Jihui Yang
  • Patent number: 7306967
    Abstract: A method of manufacturing high temperature thermistors from an ingot. The high temperature thermistors can be comprised of germanium or silicon. The high temperature thermistors have at least one ohmic contact.
    Type: Grant
    Filed: May 15, 2004
    Date of Patent: December 11, 2007
    Assignee: AdSem, Inc.
    Inventor: Michael Kozhukh
  • Patent number: 7307328
    Abstract: A semiconductor device is disclosed. In one embodiment the semiconductor device includes a semiconductor body of which is integrated a temperature sensor for measuring the temperature prevailing in the semiconductor body. The temperature sensor has a MOS transistor and a bipolar transistor. The MOS transistor is integrated into the semiconductor body nd configured such that the substhreshold current intensity of the MOS transistor is proportional to the temperature to be measured. The subthreshold current of the MOS transistor is amplified by the bipolar transistor.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: December 11, 2007
    Assignee: Infineon Technologies AG
    Inventors: Thorsten Meyer, Norbert Krischke, Markus Zundel
  • Patent number: 7307325
    Abstract: A silicon wafer is fabricated utilizing two or more semiconductor wafers. The wafers are processed using conventional wafer processing techniques and the wafer contains a plurality of output terminals which essentially are platinum titanium metallization or high temperature contacts. A glass cover member is provided which has a plurality of through holes. Each through hole is associated with a contact on the semiconductor wafer. A high temperature lead is directed through the through hole or aperture in the glass cover and is bonded directly to the appropriate contact. The lead is of a sufficient length to extend into a second non through aperture in the contact glass. The non through aperture is located on the side of the contact glass not in contact with the silicon sensor. The non through aperture is then filled with a high temperature conductive glass frit. A plurality of slots are provided.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: December 11, 2007
    Assignee: Kulite Semiconductor Products, Inc.
    Inventors: Anthony D. Kurtz, Alexander A. Ned, Scott J. Goodman
  • Patent number: 7294899
    Abstract: A method of manufacturing a nanowire filament includes forming and fusing actions. In a forming action, close proximity conductors are formed. In another forming action, a junction oxide is formed between the close proximity conductors. In a fusing action, a nanowire filament is fused between the close proximity conductors, through the junction oxide. A circuit is also provided, having first and second close proximity conductors, and a nanowire filament fused between the close proximity conductors.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: November 13, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Neal W. Meyer, James E. Ellenson
  • Patent number: 7282384
    Abstract: The present invention provides an SiGe-based thin film, a method for manufacturing this thin film, and applications of this thin film.
    Type: Grant
    Filed: November 11, 2003
    Date of Patent: October 16, 2007
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Woosuck Shin, Fabin Qiu, Noriya Izu, Ichiro Matsubara, Norimitsu Murayama
  • Patent number: 7239002
    Abstract: In a temperature sensor section of a semiconductor integrated circuit device, first vias of tungsten are formed at the topmost layer of a multi-layer wiring layer and pads of titanium are provided on regions of the multi-layer wiring layer which covers the vias. An insulating layer is provided in such a way as to cover the multi-layer wiring layer and the pads, second vias are so formed as to reach the pads. Vanadium oxide is buried in the second vias by reactive sputtering, and a temperature monitor part of vanadium oxide is provided in such a way as to connect the second vias each other. Accordingly, the temperature monitor part is connected between the two wires.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 3, 2007
    Assignees: NEC Electronics Corporation, NEC Corporation
    Inventors: Hiroaki Ohkubo, Kuniko Kikuta, Yasutaka Nakashiba, Naoyoshi Kawahara, Hiroshi Murase, Naoki Oda, Tokuhito Sasaki, Nobukazu Ito
  • Patent number: 7233000
    Abstract: This invention provides a miniaturized silicon thermal flow sensor with improved characteristics, based on the use of two series of integrated thermocouples (6, 7) on each side of a heater (4), all integrated on a porous silicon membrane (2) on top of a cavity (3). Porous silicon (2) with the cavity (3) underneath provides very good thermal isolation for the sensor elements, so as the power needed to maintain the heater (4) at a given temperature is very low. The formation process of the porous silicon membrane (2) with the cavity (3) underneath is a two-step single electrochemical process. It is based on the fact that when the anodic current is relatively low, we are in a regime of porous silicon formation, while if this current exceeds a certain value we turn into a regime of electropolishing. The process starts at low current to form porous silicon (2) and it is then turned into electropolishing conditions to form the cavity (3) underneath.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: June 19, 2007
    Inventors: Androula G. Nassiopoulou, Grigoris Kaltsas, Dimitrios N. Pagonis
  • Patent number: 7229694
    Abstract: A micromechanical component includes an anti-adhesive layer, formed from at least one fluorine-containing silane, applied to at least parts of its surface for reducing surface forces. To increase mechanical and thermal load capacity, the anti-adhesive layer is provided as a multilayer coating which is formed from at least one metal oxide layer and at least one layer composed of at least one fluorine-containing silane.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: June 12, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Lutz Mueller, Kersten Kehr, Markus Ulm
  • Patent number: 7208340
    Abstract: The invention is directed to improving of a yield and reliability of a BGA type semiconductor device having ball-shaped conductive terminals. A semiconductor wafer having warped portions is supported by a plurality of pins, being spaced from a heated stage. The semiconductor wafer is heated as a whole by uniformly irradiating thermal radiation thereto by using IR heaters disposed on an upper part of the semiconductor wafer and side heaters facing to lateral surfaces of the semiconductor wafer. This enables uniform reflowing of the conductive terminals provided on the semiconductor wafer, and makes each of the conductive terminals form a uniform shape.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: April 24, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Takashi Noma
  • Patent number: 7193290
    Abstract: A semiconductor component, such as a humidity sensor, which has a semiconductor substrate, such as, for example, made of silicon, a first electrode and a second electrode and at least one first layer that is accessible for a medium acting from the outside on the semiconductor component, the first layer being arranged at least partially between the first and the second electrode. To reduce the costs for producing the semiconductor component the first layer has pores into which the medium reaches at least partially.
    Type: Grant
    Filed: July 6, 2002
    Date of Patent: March 20, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Hubert Benzel, Heribert Weber, Frank Schaefer
  • Patent number: 7187053
    Abstract: The present invention provides an integrated circuit. The integrated circuit has a plurality of chip areas. The integrated circuit also has a plurality of temperature sensors, at least one per chip area. The temperature sensors generate a voltage proportional to the measured temperature. A voltage comparator compares the voltage output of the plurality of temperature sensors. The voltage comparator is further employable to generate a signal if the difference between the voltages generated by the plurality of temperature sensors exceeds a threshold.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: March 6, 2007
    Assignee: International Business Machines Corporation
    Inventors: David William Boerstler, Munehiro Yoshida
  • Patent number: 7176508
    Abstract: Disclosed is a temperature sensor for an integrated circuit having at least one field effect transistor (FET) having a polysilicon gate, in which a current and a voltage is supplied to the polysilicon gate, changes in the current and the voltage of the polysilicon gate are monitored, wherein the polysilicon gate of the at least one FET is electrically isolated from other components of the integrated circuit, and the changes in the current or voltage are used to calculate a change in resistance of the polysilicon gate, and the change in resistance of the polysilicon gate is used to calculate a temperature change within the integrated circuit.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: February 13, 2007
    Assignee: International Business Machines Corporation
    Inventors: Rajiv V. Joshi, Sukhvinder S. Kang
  • Patent number: 7176804
    Abstract: A method and a system for protecting the power semiconductor components used in the powerstages of power electronics devices, such as frequency converters, wherein calculation modeling the degree of heating of the semiconductor junction of the power components (V11–V16) is used, wherein the degree of heating of the power components between the measurable outer surface or cooler and the internal semiconductor junction is determined on the basis of the dissipation power and a thermal network model of the component, wherein the temperature of the outer surface of the power component or the temperature of the cooler is measured, wherein the modeled temperature of the semiconductor junction is the sum of the measured temperature of the outer surface or cooler and the calculated degree of heating, and wherein, based on the modeled junction temperature, an alarm is issued or some other protective action is taken.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: February 13, 2007
    Assignee: Vacon Oyj
    Inventors: Juha Norrena, Risto Komulainen
  • Patent number: RE39640
    Abstract: A family of isostructural compounds have been prepared having the general formula AnPbmBinO2n+m. These compounds possess a NaCl lattice type structure as well as low thermal conductivity and controlled electrical conductivity. Furthermore, the electrical properties can be controlled by varying the values for n and m. These isostructural compounds can be used for semiconductor applications such as detectors, lasers and photovoltaic cells. These compounds also have enhanced thermoelectric properties making them excellent semiconductor materials for fabrication of thermoelectric devices.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: May 22, 2007
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Mercouri G. Kanatzidis, Duck-Young Chung, Stephane DeNardi, Sandrine Sportouch