Tunnel Diode (epo) Patents (Class 257/E21.353)
  • Patent number: 11688839
    Abstract: Disclosed is an LED module including a cover part, a board part connected to a front portion of the cover part, a light emitting part electrically connected to the board part, positioned on a front portion of the board part, and that emits light through a side surface thereof, a lens part surrounding the side surface of the light emitting part and positioned on the front portion of the board part, and a panel part, into which the lens part is inserted, having an optic part having a fine boss shape on an outer surface thereof, and positioned on the front portion of the board part.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: June 27, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Seok Ho Jeong
  • Patent number: 9741800
    Abstract: A device includes insulation regions over portions of a semiconductor substrate, and a III-V compound semiconductor region over top surfaces of the insulation regions, wherein the III-V compound semiconductor region overlaps a region between opposite sidewalls of the insulation regions. The III-V compound semiconductor region includes a first and a second III-V compound semiconductor layer formed of a first III-V compound semiconductor material having a first band gap, and a third III-V compound semiconductor layer formed of a second III-V compound semiconductor material between the first and the second III-V compound semiconductor layers. The second III-V compound semiconductor material has a second band gap lower than the first band gap. A gate dielectric is formed on a sidewall and a top surface of the III-V compound semiconductor region. A gate electrode is formed over the gate dielectric.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: August 22, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Ta Lin, Chun-Feng Nieh, Chung-Yi Yu, Chi-Ming Chen
  • Patent number: 9018673
    Abstract: A disclosed Zener diode includes, in one embodiment, an anode region and a cathode region that form a shallow sub-surface latitudinal Zener junction. The Zener diode may further include an anode contact region interconnecting the anode region with a contact located away from the Zener junction region and a silicide blocking structure overlying the anode region. The Zener diode may also include one or more shallow, sub-surface longitudinal p-n junctions at the junctions between lateral edges of the cathode region and the adjacent region. The adjacent region may be a heavily doped region such as the anode contact region. In other embodiments, the Zener diode may include a breakdown voltage boost region comprising a more lightly doped region located between the cathode region and the anode contact region.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 28, 2015
    Assignee: Freescale Semiconductor Inc.
    Inventors: Weize Chen, Xin Lin, Patrice M. Parris
  • Patent number: 8889538
    Abstract: Some embodiments include methods of forming diodes in which a first electrode is formed to have a pedestal extending upwardly from a base. At least one layer is deposited along an undulating topography that extends across the pedestal and base, and a second electrode is formed over the least one layer. The first electrode, at least one layer, and second electrode together form a structure that conducts current between the first and second electrodes when voltage of one polarity is applied to the structure, and that inhibits current flow between the first and second electrodes when voltage having a polarity opposite to said one polarity is applied to the structure. Some embodiments include diodes having a first electrode that contains two or more projections extending upwardly from a base, having at least one layer over the first electrode, and having a second electrode over the at least one layer.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: November 18, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Chandra Mouli
  • Publication number: 20140061715
    Abstract: A disclosed Zener diode includes, in one embodiment, an anode region and a cathode region that form a shallow sub-surface latitudinal Zener junction. The Zener diode may further include an anode contact region interconnecting the anode region with a contact located away from the Zener junction region and a silicide blocking structure overlying the anode region. The Zener diode may also include one or more shallow, sub-surface longitudinal p-n junctions at the junctions between lateral edges of the cathode region and the adjacent region. The adjacent region may be a heavily doped region such as the anode contact region. In other embodiments, the Zener diode may include a breakdown voltage boost region comprising a more lightly doped region located between the cathode region and the anode contact region.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Weize Chen, Xin Lin, Patrice M. Parris
  • Patent number: 8629047
    Abstract: Structures include a tunneling device disposed over first and second lattice-mismatched semiconductor materials. Process embodiments include forming tunneling devices over lattice-mismatched materials.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: January 14, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Zhiyuan Cheng, Calvin Sheen
  • Patent number: 8273643
    Abstract: Some embodiments include methods of forming diodes in which a first electrode is formed to have a pedestal extending upwardly from a base. At least one layer is deposited along an undulating topography that extends across the pedestal and base, and a second electrode is formed over the least one layer. The first electrode, at least one layer, and second electrode together form a structure that conducts current between the first and second electrodes when voltage of one polarity is applied to the structure, and that inhibits current flow between the first and second electrodes when voltage having a polarity opposite to said one polarity is applied to the structure. Some embodiments include diodes having a first electrode that contains two or more projections extending upwardly from a base, having at least one layer over the first electrode, and having a second electrode over the at least one layer.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: September 25, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Chandra Mouli
  • Publication number: 20120199187
    Abstract: The present invention provides a tunnel diode and a method for manufacturing thereof. The tunnel diode comprises a p-doped semiconductor region and an n-doped semiconductor region forming a pn-junction at least partly within a nanowire where semiconductor materials on different sides of the pn-junction are different such that a heterojuction is formed. The materials of the nanowire may be compound semiconductor materials. The heterojunction tunnel diode can be of type-I (Straddling gap), type-II (Staggered gap) or type-III (Broken gap).
    Type: Application
    Filed: October 22, 2010
    Publication date: August 9, 2012
    Applicant: Sol Voltaics AB
    Inventors: Magnus Borgström, Magnus Heurlin, Stefan Fält
  • Patent number: 8216951
    Abstract: Structures include a tunneling device disposed over first and second lattice-mismatched semiconductor materials. Process embodiments include forming tunneling devices over lattice-mismatched materials.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: July 10, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Zhiyuan Cheng, Calvin Sheen
  • Patent number: 8217495
    Abstract: A high-frequency metal-insulator-metal (MIM) type diode is constructed as a bridge suspended above a substrate to significantly reduce parasitic capacitances affecting the operation frequency of the diode thereby permitting improved high-frequency rectification, demodulation, or the like.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: July 10, 2012
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Robert H. Blick, Chulki Kim, Jonghoo Park
  • Publication number: 20110220959
    Abstract: A high-frequency metal-insulator-metal (MIM) type diode is constructed as a bridge suspended above a substrate to significantly reduce parasitic capacitances affecting the operation frequency of the diode thereby permitting improved high-frequency rectification, demodulation, or the like.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 15, 2011
    Inventors: Robert H. Blick, Chulki Kim, Jonghoo Park
  • Publication number: 20110186906
    Abstract: Example methods and apparatus for Antimonide-based backward diode millimeter-wave detectors are disclosed. A disclosed example backward diode includes a cathode layer adjacent to a first side of a non-uniform doping profile, and an Antimonide tunnel barrier layer adjacent to a second side of the spacer layer.
    Type: Application
    Filed: May 27, 2009
    Publication date: August 4, 2011
    Inventors: Patrick Fay, Ning Su
  • Patent number: 7943471
    Abstract: The present invention is directed to a diode with an asymmetric silicon germanium anode and methods of making same. In one illustrative embodiment, the diode includes an anode comprising a P-doped silicon germanium material formed in a semiconducting substrate, an N-doped silicon cathode formed in the semiconducting substrate, a first conductive contact that is conductively coupled to the anode and a second conductive contact that is conductively coupled to the cathode.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: May 17, 2011
    Assignee: GlobalFoundries Inc.
    Inventors: James F. Buller, Jian Chen
  • Publication number: 20110073902
    Abstract: A semiconductor body includes an n-conductive semiconductor layer and a p-conductive semiconductor layer. The p-conductive semiconductor layer contains a p-dopant and the n-conductive semiconductor layer an n-dopant and a further dopant.
    Type: Application
    Filed: May 28, 2009
    Publication date: March 31, 2011
    Inventors: Martin Strassburg, Hans-Juergen Lugauer, Vincent Grolier, Berthold Hahn, Richard Floeter
  • Publication number: 20110068325
    Abstract: Some embodiments include methods of forming diodes in which a first electrode is formed to have a pedestal extending upwardly from a base. At least one layer is deposited along an undulating topography that extends across the pedestal and base, and a second electrode is formed over the least one layer. The first electrode, at least one layer, and second electrode together form a structure that conducts current between the first and second electrodes when voltage of one polarity is applied to the structure, and that inhibits current flow between the first and second electrodes when voltage having a polarity opposite to said one polarity is applied to the structure. Some embodiments include diodes having a first electrode that contains two or more projections extending upwardly from a base, having at least one layer over the first electrode, and having a second electrode over the at least one layer.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 24, 2011
    Applicant: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Chandra Mouli
  • Patent number: 7858506
    Abstract: Some embodiments include methods of forming diodes in which a first electrode is formed to have a pedestal extending upwardly from a base. At least one layer is deposited along an undulating topography that extends across the pedestal and base, and a second electrode is formed over the least one layer. The first electrode, at least one layer, and second electrode together form a structure that conducts current between the first and second electrodes when voltage of one polarity is applied to the structure, and that inhibits current flow between the first and second electrodes when voltage having a polarity opposite to said one polarity is applied to the structure. Some embodiments include diodes having a first electrode that contains two or more projections extending upwardly from a base, having at least one layer over the first electrode, and having a second electrode over the at least one layer.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: December 28, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Chandra Mouli
  • Publication number: 20100129980
    Abstract: Some embodiments include methods of forming diodes. A stack may be formed over a first conductive material. The stack may include, in ascending order, a sacrificial material, at least one dielectric material, and a second conductive material. Spacers may be formed along opposing sidewalls of the stack, and then an entirety of the sacrificial material may be removed to leave a gap between the first conductive material and the at least one dielectric material. In some embodiments of forming diodes, a layer may be formed over a first conductive material, with the layer containing supports interspersed in sacrificial material. At least one dielectric material may be formed over the layer, and a second conductive material may be formed over the at least one dielectric material. An entirety of the sacrificial material may then be removed.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Inventors: Gurtej S. Sandhu, Bhaskar Srinivasan
  • Patent number: 7700466
    Abstract: In one embodiment, a mandrel and an outer dummy spacer may be employed to form a first conductivity type region. The mandrel is removed to form a recessed region wherein a second conductivity type region is formed. In another embodiment, a mandrel is removed from within shallow trench isolation to form a recessed region, in which an inner dummy spacer is formed. A first conductivity type region and a second conductivity region are formed within the remainder of the recessed region. An anneal is performed so that the first conductivity type region and the second conductivity type region abut each other by diffusion. A gate electrode is formed in self-alignment to the p-n junction between the first and second conductivity regions. The p-n junction controlled by the gate electrode, which may be sublithographic, constitutes an inventive tunneling effect transistor.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: April 20, 2010
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Kangguo Cheng, Jack A. Mandelman
  • Publication number: 20100093140
    Abstract: A gated resonant tunneling diode (GRTD) that operates without cryogenic cooling is provided. This GRTD employs conventional CMOS process technology, preferably at the 65 nm node and smaller, which is different from other conventional quantum transistors that require other, completely different process technologies and operating conditions. To accomplish this, the GRTD uses a body of a first conduction type with a first electrode region and a second electrode region (each of a second conduction type) formed in the body. A channel is located between the first and second electrode regions in the body. A barrier region of the first conduction type is formed in the channel (with the doping level of the barrier region being greater than the doping level of the body), and a quantum well region of the second conduction type formed in the channel. Additionally, the barrier region is located between each of the first and second electrode regions and the quantum well region.
    Type: Application
    Filed: August 17, 2009
    Publication date: April 15, 2010
    Applicant: Texas Instruments Incorporated
    Inventors: Henry L. Edwards, Robert C. Bowen, Tathagata Chatterjee
  • Publication number: 20090315020
    Abstract: Some embodiments include methods of forming diodes in which a first electrode is formed to have a pedestal extending upwardly from a base. At least one layer is deposited along an undulating topography that extends across the pedestal and base, and a second electrode is formed over the least one layer. The first electrode, at least one layer, and second electrode together form a structure that conducts current between the first and second electrodes when voltage of one polarity is applied to the structure, and that inhibits current flow between the first and second electrodes when voltage having a polarity opposite to said one polarity is applied to the structure. Some embodiments include diodes having a first electrode that contains two or more projections extending upwardly from a base, having at least one layer over the first electrode, and having a second electrode over the at least one layer.
    Type: Application
    Filed: June 18, 2008
    Publication date: December 24, 2009
    Inventors: Gurtej S. Sandhu, Chandra Mouli
  • Publication number: 20090039384
    Abstract: In one embodiment the present invention includes a semiconductor rectifier device comprising a first, second, and third semiconductor regions and a gate. The first semiconductor region is of a first conductivity type. The second semiconductor region is adjacent to the first semiconductor region which has a second conductivity type. The third semiconductor region is adjacent to the second semiconductor region which has the second conductivity type. The gate is proximate to but insulated from the second semiconductor region and electrically coupled to the third semiconductor region. When the first semiconductor region is biased in a first direction, an inversion region forms in the second semiconductor region. The inversion region forms a forward-biased tunnel diode junction with the third semiconductor region. When the first semiconductor region is biased a second direction, the semiconductor rectifier device functions as a reverse-biased PIN diode.
    Type: Application
    Filed: September 10, 2008
    Publication date: February 12, 2009
    Applicant: Diodes, Inc.
    Inventors: Roman Jan Hamerski, Jonathan Moult, Timothy S. Eastman
  • Publication number: 20080073641
    Abstract: Structures include a tunneling device disposed over first and second lattice-mismatched semiconductor materials. Process embodiments include forming tunneling devices over lattice-mismatched materials.
    Type: Application
    Filed: September 27, 2007
    Publication date: March 27, 2008
    Applicant: AmberWave Systems Corporation
    Inventors: Zhiyuan Cheng, Calvin Sheen
  • Publication number: 20080048200
    Abstract: Overmolded lenses and certain fabrication techniques are described for LED structures. In one embodiment, thin YAG phosphor plates are formed and affixed over blue LEDs mounted on a submount wafer. A clear lens is then molded over each LED structure during a single molding process. The LEDs are then separated from the wafer. The molded lens may include red phosphor to generate a warmer white light. In another embodiment, the phosphor plates are first temporarily mounted on a backplate, and a lens containing a red phosphor is molded over the phosphor plates. The plates with overmolded lenses are removed from the backplate and affixed to the top of an energizing LED. A clear lens is then molded over each LED structure. The shape of the molded phosphor-loaded lenses may be designed to improve the color vs. angle uniformity. Multiple dies may be encapsulated by a single lens. In another embodiment, a prefabricated collimating lens is glued to the flat top of an overmolded lens.
    Type: Application
    Filed: February 26, 2007
    Publication date: February 28, 2008
    Applicant: PHILIPS LUMILEDS LIGHTING COMPANY, LLC
    Inventors: Gerd Mueller, Regina Mueller-Mach, Grigoriy Basin, Robert West, Paul Martin, Tze-Sen Lim, Stefan Eberle
  • Publication number: 20080037316
    Abstract: A memory cell and method for making a memory cell in accordance with embodiments of the present invention includes two or more tunnel diodes, a loading system, and a driving system. The two or more tunnel diodes are coupled together, the loading system is coupled to the tunnel diodes and the driving system is coupled to the tunnel diodes and the loading system. The driving system drives a sense node from the tunnel diodes, the loading system, and the driving system between at least three or more substantially stable logic states.
    Type: Application
    Filed: May 7, 2007
    Publication date: February 14, 2008
    Applicant: ROCHESTER INSTITUTE OF TECHNOLOGY
    Inventors: Reinaldo Vega, Stephen Sudirgo
  • Patent number: 7183143
    Abstract: A method for forming a nitrided tunnel oxide layer is described. A silicon oxide layer as a tunnel oxide layer is formed on a semiconductor substrate, and a plasma nitridation process is performed to implant nitrogen atoms into the silicon oxide layer. A thermal drive-in process is then performed to diffuse the implanted nitrogen atoms across the silicon oxide layer.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: February 27, 2007
    Assignee: Macronix International Co., Ltd.
    Inventor: Tzu-Yu Wang