With One Or More Field Relief Electrode Comprising Resistance Material (e.g., Semi Insulating Material, Lightly Doped Poly-silicon) (epo) Patents (Class 257/E29.011)
  • Patent number: 8878330
    Abstract: An integrated circuit containing a voltage divider having an upper resistor of unsilicided gate material over field oxide around a central opening and a drift layer under the upper resistor, an input terminal coupled to an input node of the upper resistor adjacent to the central opening in the field oxide and coupled to the drift layer through the central opening, a sense terminal coupled to a sense node on the upper resistor opposite from the input node, a lower resistor with a sense node coupled to the sense terminal and a reference node, and a reference terminal coupled to the reference node. A process of forming the integrated circuit containing the voltage divider.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: November 4, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Hideaki Kawahara, Marie Denison, Sameer Pendharkar, Philip L. Hower, John Lin, Robert A. Neidorff
  • Patent number: 8530877
    Abstract: A variable resistance element that can stably perform a switching operation with a property variation being reduced by suppressing a sharp current that accompanies completion of forming process, and a non-volatile semiconductor memory device including the variable resistance element are realized. The non-volatile semiconductor memory device uses the variable resistance element for storing information in which a resistance changing layer is interposed between a first electrode and a second electrode, and a buffer layer is inserted between the first electrode and the resistance changing layer where a switching interface is formed. The buffer layer and the resistance changing layer include n-type metal oxides, and materials of the buffer layer and the resistance changing layer are selected such that energy at a bottom of a conduction band of the n-type metal oxide configuring the buffer layer is lower than that of the n-type metal oxide configuring the resistance changing layer.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: September 10, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Junya Onishi, Shinobu Yamazaki, Kazuya Ishihara, Yushi Inoue, Yukio Tamai, Nobuyoshi Awaya
  • Patent number: 8314471
    Abstract: In one embodiment, the present invention includes a semiconductor power device. The semiconductor power device comprises a trenched gate and a trenched field region. The trenched gate is disposed vertically within a trench in a semiconductor substrate. The trenched field region is disposed vertically within the trench and below the trenched gate. A lower portion of the trenched field region tapers to disperse an electric field.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: November 20, 2012
    Assignee: Diodes Incorporated
    Inventors: Chiao-Shun Chuang, Tony Huang
  • Patent number: 7696535
    Abstract: A gallium nitride high electron mobility transistor, in which an inner field-plate is disposed between the gate and drain of the high electron mobility transistor, so that an electric field is distributed between gate and drain regions to reduce a peak value and to reduce gate leakage current while maintaining high frequency performance, thus obtaining a high breakdown voltage, reducing the capacitance between the gate and the drain attributable to a shielding effect, and improving linearity and high power and high frequency characteristics through variation in the input voltage of the inner field-plate.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: April 13, 2010
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Kyounghoon Yang, Sungsik Lee, Kiwon Lee, Kwangui Ko
  • Patent number: 7391088
    Abstract: A monolithic integrated circuit fabricated on a semiconductor die includes a control circuit and a first output transistor having segments substantially equal to a first length. A second output transistor has segments substantially equal to a second length. The first and second output transistors occupy an L-shaped area of the semiconductor die, the L-shaped area having first and second inner sides that are respectively disposed adjacent first and second sides of the control circuit. At least one of the first and second output transistors is coupled to the control circuit. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: June 24, 2008
    Assignee: Power Integrations, Inc.
    Inventor: Balu Balakrishnan
  • Patent number: 7335944
    Abstract: A high-voltage transistor includes first and second trenches that define a mesa in a semiconductor substrate. First and second field plate members are respectively disposed in the first and second trenches, with each of the first and second field plate members being separated from the mesa by a dielectric layer. The mesa includes a plurality of sections, each section having a substantially constant doping concentration gradient, the gradient of one section being at least 10% greater than the gradient of another section. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: February 26, 2008
    Assignee: Power Integrations, Inc.
    Inventors: Sujit Banerjee, Donald Ray Disney
  • Patent number: 7253059
    Abstract: A monolithic power integrated circuit fabricated on a semiconductor die includes a control circuit and a first output high voltage field-effect transistor (HVFET) having source and drain segments substantially equal to a first length. A second output HVFET has source and drain segments substantially equal to a second length. At least one of the first and second output HVFETs is coupled to the control circuit. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: August 7, 2007
    Assignee: Power Integrations, Inc.
    Inventor: Balu Balakrishnan
  • Patent number: 7220629
    Abstract: A monolithic integrated circuit fabricated on a semiconductor die includes a control circuit and a first output transistor having segments substantially equal to a first length. A second output transistor has segments substantially equal to a second length. The first and second output transistors occupy an L-shaped area of the semiconductor die, the L-shaped area having first and second inner sides that are respectively disposed adjacent first and second sides of the control circuit. At least one of the first and second output transistors is coupled to the control circuit. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: May 22, 2007
    Assignee: Power Integrations, Inc.
    Inventor: Balu Balakrishnan
  • Patent number: 7135748
    Abstract: A monolithic integrated circuit fabricated on a semiconductor die includes a control circuit and a first output transistor having segments substantially equal to a first length. A second output transistor has segments substantially equal to a second length. The first and second output transistors occupy an L-shaped area of the semiconductor die, the L-shaped area having first and second inner sides that are respectively disposed adjacent first and second sides of the control circuit. At least one of the first and second output transistors is coupled to the control circuit. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: November 14, 2006
    Assignee: Power Integrations, Inc.
    Inventor: Balu Balakrishnan
  • Patent number: 7119415
    Abstract: A monolithically integrated circuit comprises a thin film resistor (8) with low resistance and low temperature coefficient; a high frequency lateral power transistor device (9) including gate (17), source (16) and drain (15) regions, and a Faraday shield layer region (22; 22?) above the gate region; and at least a first metallization layer (28) there above for electrical connection of the gate (17), source (16) and drain (15) regions through via holes filled with conductive material (29c–d). The thin film resistor (8) and the Faraday shield layer region (22; 22?) are made in the same conductive layer, which is arranged below the first metallization layer (28).
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: October 10, 2006
    Assignee: Infineon Technologies AG
    Inventors: Hans Norström, Ted Johansson
  • Patent number: 7112867
    Abstract: A high resistance region may be used to isolate the body of a first transistor from a body contact.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: September 26, 2006
    Assignee: Intel Corporation
    Inventors: Ian Rippke, Stewart Taylor