Device Controllable Only By Electric Current Supplied Or The Electric Potential Applied To Electrode Which Does Not Carry Current To Be Rectified, Amplified, Or Switched, E.g., Three-terminal Devices Such As Source, Drain, And Gate Terminals; Emitter, Base, Collector Terminals (epo) Patents (Class 257/E21.05)
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Patent number: 9983255Abstract: A test fixture for testing a material according to a particular test procedure. A metallic base and four non-conductive side panels are affixed along a periphery of the base to form an internal cavity, and a non-conductive top cover is hingedly connected to one side panel. A metallic bottom electrode has an upper surface for holding a test material and a lower portion installed into a first aperture in an upper surface of the base. A metallic top electrode has a lower portion with a lower surface for contacting the test material and an upper portion extending out of a cover aperture in the top cover when the lower surface is in contact with the test material. A voltage source is coupled to perform the testing via a terminal on the base and the upper portion of the top electrode.Type: GrantFiled: August 15, 2016Date of Patent: May 29, 2018Assignee: The Boeing CompanyInventors: Victor U. Ukwedeh, Zoey M. Henson, Dan Maddex
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Patent number: 9835693Abstract: Methods and configuration are disclosed for providing higher magnetic sensitivity magnetometers through fluorescence manipulation by phonon spectrum control. A method for increasing the magnetic sensitivity for a DNV sensor may include providing a diamond having nitrogen vacancies of a DNV sensor and an acoustic driver and acoustically driving the diamond with the acoustic driver to manipulate a phonon spectrum of the DNV sensor. A DNV sensor may include a diamond having nitrogen vacancies, a photo detector configured to detect photon emissions from the diamond responsive to laser excitation of the diamond and an acoustic driver configured to manipulate a phonon spectrum for the DNV sensor by acoustically driving the diamond.Type: GrantFiled: January 21, 2016Date of Patent: December 5, 2017Assignee: Lockheed Martin CorporationInventors: David N. Coar, Jeff D. Cammerata
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Patent number: 8975632Abstract: Semiconductor elements deteriorate or are destroyed due to electrostatic discharge damage. The present invention provides a semiconductor device in which a protecting means is formed in each pixel. The protecting means is provided with one or a plurality of elements selected from the group consisting of resistor elements, capacitor elements, and rectifying elements. Sudden changes in the electric potential of a source electrode or a drain electrode of a transistor due to electric charge that builds up in a pixel electrode is relieved by disposing the protecting means between the pixel electrode of the light-emitting element and the source electrode or the drain electrode of the transistor. Deterioration or destruction of the semiconductor element due to electrostatic discharge damage is thus prevented.Type: GrantFiled: December 30, 2013Date of Patent: March 10, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Masahiko Hayakawa, Yoshifumi Tanada, Mitsuaki Osame, Aya Anzai, Ryota Fukumoto
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Patent number: 8828765Abstract: A method (50) is provided for processing a graded-density AR silicon surface (14) to provide effective surface passivation. The method (50) includes positioning a substrate or wafer (12) with a silicon surface (14) in a reaction or processing chamber (42). The silicon surface (14) has been processed (52) to be an AR surface with a density gradient or region of black silicon. The method (50) continues with heating (54) the chamber (42) to a high temperature for both doping and surface passivation. The method (50) includes forming (58), with a dopant-containing precursor in contact with the silicon surface (14) of the substrate (12), an emitter junction (16) proximate to the silicon surface (14) by doping the substrate (12). The method (50) further includes, while the chamber is maintained at the high or raised temperature, forming (62) a passivation layer (19) on the graded-density silicon anti-reflection surface (14).Type: GrantFiled: June 9, 2010Date of Patent: September 9, 2014Assignee: Alliance for Sustainable Energy, LLCInventors: Hao-Chih Yuan, Howard M. Branz, Matthew R. Page
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Patent number: 8093139Abstract: The present invention describes a method of fabrication of nanocomposite semiconductor materials comprising aligned arrays of metal or semiconductor nanowires incorporated into semiconductor material for application in various electronic, optoelectronic, photonic and plasmonic devices employing self-assembling of the nanowires under light illumination from charged interstitial defect atoms, which are either inherently present in the semiconductor material or artificially introduced in the matrix semiconductor material.Type: GrantFiled: December 11, 2008Date of Patent: January 10, 2012Assignees: Anteos, Inc., Altair Center, LLCInventor: Sergei Krivoshlykov
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Patent number: 8093630Abstract: The invention provides a semiconductor device and a lateral diffused metal-oxide-semiconductor transistor. The semiconductor device includes a substrate having a first conductive type. A gate is disposed on the substrate. A source doped region is formed in the substrate, neighboring with a first side of the gate, wherein the source doped region has a second conductive type different from the first conductive type. A drain doped region is formed in the substrate, neighboring with a second side opposite to the first side of the gate. The drain doped region is constructed by a plurality of first doped regions with the first conductive type and a plurality of second doped regions with the second conductive type, wherein the first doped regions and the second doped regions are alternatively arranged.Type: GrantFiled: June 2, 2009Date of Patent: January 10, 2012Assignee: Vanguard International Semiconductor CorporationInventors: Jimmy Lin, Shang-Hui Tu, Ming-Horng Hsiao
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Patent number: 7915097Abstract: This publication concerns electronics modules comprising at least one first material zone formed of first material which can be structurally transformed by means of electric interaction in order to increase its conductivity at least locally, the first material having a first transformation threshold, and at least one second material zone in the vicinity of the first material zone. According to the invention, the second material zone is formed from second material, which can also be structurally transformed in order to increase its conductivity, the second material having a second transformation threshold, which is lower than the transformation threshold of the first material zone. With the aid of the invention, post-processing electrical programmability and non-volatility of printable memories can be achieved.Type: GrantFiled: June 6, 2008Date of Patent: March 29, 2011Assignee: Valtion Teknillinen TutkimuskeskusInventors: Tomi Mattila, Ari Alastalo, Mark Allen, Heikki Seppä
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Patent number: 7875469Abstract: A method of operating and process for fabricating an electron source. A conductive rod is covered by an insulating layer, by dipping the rod in an insulation solution, for example. The rod is then covered by a field emitter material to form a layered conductive rod. The rod may also be covered by a second insulating material. Next, the materials are removed from the end of the rod and the insulating layers are recessed with respect to the field emitter layer so that a gap is present between the field emitter layer and the rod. The layered rod may be operated as an electron source within a vacuum tube by applying a positive bias to the rod with respect to the field emitter material and applying a higher positive bias to an anode opposite the rod in the tube. Electrons will accelerate to the charged anode and generate soft X-rays.Type: GrantFiled: December 12, 2007Date of Patent: January 25, 2011Assignee: Cabot Microelectronics CorporationInventor: Heinz H. Busta
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Patent number: 7858461Abstract: A semiconductor device includes a transistor having a recessed gate, contact plugs formed in a region of a plurality of trenches, which are formed by recessing a semiconductor substrate. Further, a metal line and a source/drain region can be connected through the contact plug, so that on-current can be increased as much as an increased channel area.Type: GrantFiled: July 23, 2010Date of Patent: December 28, 2010Assignee: Hynix Semiconductor Inc.Inventor: Dae Sik Kim
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Patent number: 7847325Abstract: A discrete trap memory, comprising a silicon substrate layer, a bottom oxide layer on the silicon substrate layer, a Fullerene layer on the bottom oxide layer, a top oxide layer on the Fullerene layer, and a gate layer on the top oxide layer; wherein the Fullerene layer comprises spherical, elliptical or endohedral Fullerenes that act as charge traps.Type: GrantFiled: March 12, 2009Date of Patent: December 7, 2010Assignee: Infineon Technologies AGInventors: Gerhard Poeppel, Georg Tempel
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Patent number: 7847293Abstract: Lateral epitaxial overgrowth (LEO) of non-polar gallium nitride (GaN) films results in significantly reduced defect density.Type: GrantFiled: February 1, 2007Date of Patent: December 7, 2010Assignees: The Regents of the University of California, Japan Science and Technology AgencyInventors: Benjamin A. Haskell, Michael D. Craven, Paul T. Fini, Steven P. DenBaars, James S. Speck, Shuji Nakamura
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Patent number: 7829358Abstract: Embodiments of an LED disclosed has an emitter layer shaped to a controlled depth or height relative to a substrate of the LED to maximize the light output of the LED and to achieve a desired intensity distribution. In some embodiments, the exit face of the LED may be selected to conserve radiance. In some embodiments, shaping the entire LED, including the substrate and sidewalls, or shaping the substrate alone can extract 100% or approximately 100% of the light generated at the emitter layers from the emitter layers. In some embodiments, the total efficiency is at least 90% or above. In some embodiments, the emitter layer can be shaped by etching, mechanical shaping, or a combination of various shaping methods. In some embodiments, only a portion of the emitter layer is shaped to form the tiny emitters. The unshaped portion forms a continuous electrical connection for the LED.Type: GrantFiled: February 6, 2009Date of Patent: November 9, 2010Assignee: Illumitex, Inc.Inventors: Dung T. Duong, Paul N. Winberg, Matthew R. Thomas, Elliot M. Pickering, Muhammad Khizar
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Patent number: 7795125Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into a electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.Type: GrantFiled: November 20, 2008Date of Patent: September 14, 2010Assignee: Nanosys, Inc.Inventors: Mihai A. Buretea, Jian Chen, Calvin Y. H. Chow, Chunming Niu, Yaoling Pan, J. Wallace Parce, Linda T. Romano, David P. Stumbo
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Publication number: 20100051960Abstract: A graphene-based device is formed with a trench in one or more layers of material, a graphene layer within the trench, and a device structure on the graphene layer and within the trench. Fabrication techniques includes forming a trench defined by one or more layers of material, forming a graphene layer within the trench, and forming a device structure on the graphene layer and within the trench.Type: ApplicationFiled: August 29, 2008Publication date: March 4, 2010Applicant: Advanced Micro Devices, Inc.Inventors: An Chen, Zoran Krivokapic
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Patent number: 7632726Abstract: A method for fabricating a nitride-based FET device that provides reduced electron trapping and gate current leakage. The fabrication method provides a device that includes a relatively thick passivation layer to reduce traps caused by device processing and a thin passivation layer below the gate terminal to reduce gate current leakage. Semiconductor device layers are deposited on a substrate. A plurality of passivation layers are deposited on the semiconductor device layers, where at least two of the layers are made of a different dielectric material to provide an etch stop. One or more of the passivation layers can be removed using the interfaces between the layers as an etch stop so that the distance between the gate terminal and the semiconductor device layers can be tightly controlled, where the distance can be made very thin to increase device performance and reduce gate current leakage.Type: GrantFiled: December 7, 2007Date of Patent: December 15, 2009Assignee: Northrop Grumman Space & Mission Systems Corp.Inventors: Benjamin Heying, Ioulia Smorchkova, Vincent Gambin, Robert Coffie
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Patent number: 7592980Abstract: Semiconductor elements deteriorate or are destroyed due to electrostatic discharge damage. The present invention provides a semiconductor device in which a protecting means is formed in each pixel. The protecting means is provided with one or a plurality of elements selected from the group consisting of resistor elements, capacitor elements, and rectifying elements. Sudden changes in the electric potential of a source electrode or a drain electrode of a transistor due to electric charge that builds up in a pixel electrode is relieved by disposing the protecting means between the pixel electrode of the light-emitting element and the source electrode or the drain electrode of the transistor. Deterioration or destruction of the semiconductor element due to electrostatic discharge damage is thus prevented.Type: GrantFiled: June 4, 2003Date of Patent: September 22, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Masahiko Hayakawa, Yoshifumi Tanada, Mitsuaki Osame, Aya Anzai, Ryota Fukumoto
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Patent number: 7569449Abstract: Methods of fabricating negative-channel metal-oxide semiconductor (NMOS) devices and positive-channel metal-oxide semiconductor (PMOS) devices having complementary threshold voltages are described. Elements of lower-threshold voltage NMOS devices are formed at first locations on a substrate. Elements of higher-threshold voltage PMOS devices are formed at second locations on the substrate. Elements of higher-threshold voltage NMOS devices and elements of lower-threshold PMOS devices are formed by adding a same amount of p-type dopant at selected locations chosen from the first and second locations.Type: GrantFiled: October 3, 2006Date of Patent: August 4, 2009Assignee: Cypress Semiconductor CorporationInventor: Adrian B. Early
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Publication number: 20090075468Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into a electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.Type: ApplicationFiled: November 20, 2008Publication date: March 19, 2009Applicant: NANOSYS, INC.Inventors: Mihai Buretea, Jian Chen, Calvin Chow, Chunming Niu, Yaoling Pan, J. Wallace Parce, Linda T. Romano, David Stumbo
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Patent number: 7504284Abstract: A stackable microelectronic package includes a first microelectronic die attached to and electrically connecting with a first substrate. A second microelectronic die is attached to the first die on one side, and to a second substrate on the other side. Electrical connections are made between the first die and the first substrate, between the second die and the second substrate, and between the first and second substrates, e.g., via wire bonding. The electrical connecting elements are advantageously encased in a molding compound. Exposed contacts on the first and/or second substrates, not covered by the molding compound, provide for electrical connections between the package, and another package stacked onto the package. The package may avoid coplanarity factors, can be manufactured using existing equipment, allows for intermediate testing, and can also offer a thinner package height.Type: GrantFiled: August 31, 2005Date of Patent: March 17, 2009Assignee: Micron Technology, Inc.Inventors: Seng Kim Dalson Ye, Chin Hui Chong
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Patent number: 7468315Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into an electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.Type: GrantFiled: September 14, 2005Date of Patent: December 23, 2008Assignee: Nanosys, Inc.Inventors: Mihai A. Buretea, Jian Chen, Calvin Y. H. Chow, Chunming Niu, Yaoling Pan, J. Wallace Parce, Linda T. Romano, David P. Stumbo
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Patent number: 7371617Abstract: A semiconductor package with a heat sink and a method for fabricating the same are proposed. The heat sink is provided with a rigid and thermally resistant detach member on a top surface thereof, and is attached via its bottom surface to a chip mounted on a chip carrier. The detach member is sized larger than the heat sink and can be easily removed from the top surface of the heat sink. Subsequently, a molding process is performed to form an encapsulant for completely encapsulating the chip, the heat sink and the detach member. Then, a singulation process is performed to cut along predetermined cutting lines located between sides of the heat sink and corresponding sides of the detach member. Finally, the detach member and a portion of the encapsulant formed on the detach member are removed from the heat sink. The above fabrication method reduces the packaging cost.Type: GrantFiled: October 12, 2006Date of Patent: May 13, 2008Assignee: Siliconware Precision Industries Co., Ltd.Inventors: Ho-Yi Tsai, Chien-Ping Huang
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Patent number: 7262430Abstract: Organic semiconductor layers (2, 4) are laminated sandwiching an insulator thin layer (3), and translucent electrodes (1, 5) are formed on the surfaces of the organic semiconductor layers (2, 4), respectively. While a voltage is applied so that the electrode (1) is positive with respect to the electrode (5) and the opposite surfaces of the device are irradiated with two lights (6, 7) simultaneously, photocurrent multiplication is occurred to allow a photocurrent to flow in the device. However, no photocurrent multiplication occurs to allow no flow of photocurrent when the device is irradiated with one of the lights (6, 7).Type: GrantFiled: March 23, 2001Date of Patent: August 28, 2007Assignee: Japan Science and Technology CorporationInventors: Masahiro Hiramoto, Masaaki Yokoyama
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Patent number: 7164210Abstract: A semiconductor package with a heat sink and a method for fabricating the same are proposed. The heat sink is provided with a rigid and thermally resistant detach member on a top surface thereof, and is attached via its bottom surface to a chip mounted on a chip carrier. The detach member is sized larger than the heat sink and can be easily removed from the top surface of the heat sink. Subsequently, a molding process is performed to form an encapsulant for completely encapsulating the chip, the heat sink and the detach member. Then, a singulation process is performed to cut along predetermined cutting lines located between sides of the heat sink and corresponding sides of the detach member. Finally, the detach member and a portion of the encapsulant formed on the detach member are removed from the heat sink. The above fabrication method reduces the packaging cost.Type: GrantFiled: December 29, 2004Date of Patent: January 16, 2007Assignee: Siliconware Precision Industries Co., Ltd.Inventors: Ho-Yi Tsai, Chien-Ping Huang