Patents Examined by John Ingham
  • Patent number: 7436010
    Abstract: A solid state imaging apparatus includes: a plurality of photoelectric conversion cells each including a plurality of photoelectric sections arranged in an array of at least two rows and two columns; a plurality of floating diffusion sections each being connected to each of ones of the photoelectric sections which are included in the same row of each said photoelectric conversion via each of a plurality of transfer transistors, and being shared by said ones of the photoelectric sections; a plurality of read-out lines each being selectively connected to at least two of the transfer transistors; and a plurality of pixel amplifier transistors each detecting and outputting the potential of each said the floating diffusion section. Charges of the photoelectric conversion sections each being connected to one of the read-out lines and being read out by the transfer transistors are read out by different floating diffusion sections.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: October 14, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuyoshi Mori, Takumi Yamaguchi, Takahiko Murata
  • Patent number: 7372113
    Abstract: Disclosed is a semiconductor device comprising a semiconductor substrate, a gate electrode, a first insulating film formed between the semiconductor substrate and the gate electrode, and a second insulating film formed along a top surface or a side surface of the gate electrode and including a lower silicon nitride film containing nitrogen, silicon and hydrogen and an upper silicon nitride film formed on the lower silicon nitride film and containing nitrogen, silicon and hydrogen, and wherein a composition ratio N/Si of nitrogen (N) to silicon (Si) in the lower silicon nitride film is higher than that in the upper silicon nitride film.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: May 13, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Tanaka, Yoshio Ozawa, Shigehiko Saida, Akira Goda, Mitsuhiro Noguchi, Yuichiro Mitani, Yoshitaka Tsunashima
  • Patent number: 7326974
    Abstract: A field-effect transistor used as a sensor for measuring a gas or ion concentration utilizes a surface structure such as rings along with surface profiling, for example elevations of the rings and depressions therebetween, to decrease the surface conductivity between a guard ring and the FET, to thereby increase the concentration rise per unit time of a gas signal and increase the time for a potential on a channel region of the FET to approximate the potential on a guard ring. The rings, which may be arranged around the FET structure, may be defined by a surface material different from the remaining surface material and thus having different surface conductivities. The surface profiling, together with the rings, can be utilized to increase an amount of time that may describe the equalization of the channel region potential to the guard ring potential. The elevations may have a surface conductivity different from, for example smaller than, that of the depressions.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: February 5, 2008
    Assignee: Micronas GmbH
    Inventor: Heinz-Peter Frerichs
  • Patent number: 7294897
    Abstract: Microelectronic imagers, methods for packaging microelectronic imagers, and methods for forming electrically conductive through-wafer interconnects in microelectronic imagers are disclosed herein. In one embodiment, a microelectronic imaging die can include a microelectronic substrate, an integrated circuit, and an image sensor electrically coupled to the integrated circuit. A bond-pad is carried by the substrate and electrically coupled to the integrated circuit. An electrically conductive through-wafer interconnect extends through the substrate and is in contact with the bond-pad. The interconnect can include a passage extending completely through the substrate and the bond-pad, a dielectric liner deposited into the passage and in contact with the substrate, first and second conductive layers deposited onto at least a portion of the dielectric liner, and a conductive fill material deposited into the passage over at least a portion of the second conductive layer and electrically coupled to the bond-pad.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: November 13, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Salman Akram, Charles M. Watkins, Kyle K. Kirby, Alan G. Wood, William M. Hiatt
  • Patent number: 7259439
    Abstract: In a semiconductor photodetector 1 according to the present invention, flat surfaces of three steps with different heights are formed in a top surface portion of a semi-insulating GaAs substrate 2. An n-type GaAs layer 3, an i-type GaAs layer 4, and a p-type GaAs layer 5 are successively deposited on the lower step surface formed in a central region of the semi-insulating GaAs substrate 2. Furthermore, a p-side ohmic electrode 6 is provided astride and above a flat surface formed by the p-type GaAs layer 5 and the upper step surface of the semi-insulating GaAs substrate 2, and an n-side ohmic electrode 7 is provided astride and above a flat surface formed by the n-type GaAs layer 3 and the middle step surface of the semi-insulating GaAs substrate 2.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: August 21, 2007
    Assignee: Hamamatsu Photonics K.K.
    Inventor: Kazutoshi Nakajima
  • Patent number: 7238999
    Abstract: An apparatus and method for sensor architecture based on bulk machining of Silicon-On-Oxide wafers and fusion bonding that provides a symmetric, nearly all-silicon, hermetically sealed MEMS device having a sensor mechanism formed in an active semiconductor layer, and opposing silicon cover plates each having active layers bonded to opposite faces of the sensor mechanism. The mechanism is structured with sensor mechanical features structurally supported by at least one mechanism anchor. The active layers of the cover plates each include interior features structured to cooperate with the sensor mechanical features and an anchor structured to cooperate with the mechanism anchor. A handle layer of each cover plate includes a pit extending there through in alignment with the cover plate anchor. An unbroken rim of dielectric material forms a seal between the cover plate anchor and the pit and exposes an external surface of the cover plate anchor.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 3, 2007
    Assignee: Honeywell International Inc.
    Inventors: Peter H. LaFond, Lianzhong Yu
  • Patent number: 7233022
    Abstract: In a method of forming a polysilicon film, a thin film transistor including a polysilicon film, and a method of manufacturing a thin film transistor including a polysilicon film, the thin film transistor includes a substrate, a first heat conduction film on the substrate, a second heat conduction film adjacent to the first heat conduction film, the second heat conduction film having a lower thermal conductivity than the first heat conduction film, a polysilicon film on the second heat conduction film and the first heat conduction film adjacent to the second heat conduction film, and a gate stack on the polysilicon film. The second heat conduction film may either be on the first heat conduction film or, alternatively, the first heat conduction film may be non-contiguous and the second heat conduction film may be interposed between portions of the non-contiguous first heat conduction film.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: June 19, 2007
    Assignee: Samsung Electroncis Co., Ltd.
    Inventors: Kyung-bae Park, Takashi Noguchi, Se-young Cho, Do-young Kim, Jang-yeon Kwon
  • Patent number: 7227226
    Abstract: The present invention is a semiconductor device which includes: a semiconductor substrate; a BOX film disposed on top of the semiconductor substrate; an active layer disposed on top of the BOX film; a base region disposed proximate to a surface of the active layer; a first main electrode region disposed within the base region; a second main electrode region formed from the surface of the active layer to a surface of the BOX film or protruding through the BOX film, and the second main electrode region being spaced from the base region; a gate insulator film disposed on the surface of the base region; a gate electrode disposed on top of the gate insulator film; a first main electrode connected to the first main electrode region; a second main electrode connected to the second main electrode region; and a ground electrode connected to the semiconductor substrate on an opposite side surface from a surface having the BOX film on the semiconductor substrate.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: June 5, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Keiko Kawamura
  • Patent number: 7224007
    Abstract: A multiple channel transistor provides a transistor with an improved drive current and speed by using tunable hot carrier effects. A thin gate oxide has a carrier confinement layer formed on top thereof. Holes produced by hot carrier effects are retained by the carrier confinement layer directly above the gate oxide layer. The holes switch on the bottom transistor of the multi-channel transistor, thereby increasing the drive current.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: May 29, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: James Pan, Andrew M. Waite
  • Patent number: 7211867
    Abstract: A memory cell which is formed on a fully depleted SOI or other semiconductor thin film and which operates at low voltage without needing a conventional large capacitor is provided as well as a memory cell array. The semiconductor thin film is sandwiched between first and second semiconductor regions which face each other across the semiconductor thin film and which have a first conductivity type. A third semiconductor region having the opposite conductivity type is provided in an extended portion of the semiconductor thin film. From the third semiconductor region, carriers of the opposite conductivity type are supplied to and accumulated in the semiconductor thin film portion to change the gate threshold voltage of a first conductivity type channel that is induced by a first conductive gate voltage in the semiconductor thin film between the first and second semiconductor regions through an insulating film.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: May 1, 2007
    Assignees: Seiko Instruments Inc., Yutaka Hayashi
    Inventors: Yutaka Hayashi, Hisashi Hasegawa, Yoshifumi Yoshida, Jun Osanai
  • Patent number: 7202495
    Abstract: An organic semiconductor element is provided which has the controlled crystalline state of a vapor-deposited pentacene layer and a high mobility with low voltage driving. The organic semiconductor element is formed by providing a gate electrode 101 on the surface of a substrate 102, providing thereon a gate insulating layer 103, providing on the surface of the gate insulating layer 103 an island-shaped protrusion layer 104 having dispersed and island-shaped protrusions with a low surface energy, providing on the island-shaped protrusion layer 104 a source electrode 106 and a drain electrode 107 with a distance therebetween, providing thereon an organic semiconductor layer 105 in contact with the island-shaped protrusion layer 104 and both electrodes 106 and 107, and further providing a protective film 108 on the organic semiconductor layer 105.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: April 10, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akira Unno
  • Patent number: 7170135
    Abstract: An arrangement (200) and method for scalable ESD protection of a semiconductor structure (140), a protection structure (120) providing a discharge transistor (110) path from an input/output node (130) to ground or another node if a threshold voltage is reached, wherein the discharge transistor is a self-triggered transistor having collector/drain (220) and emitter/source (210) regions, and a base/bulk region (260) having one or more floating regions (240) between the collector/drain (220) and emitter/source (210) regions. The floating region (N or P) modulates the threshold voltage Vtl for ESD protection. Vtl can be adjusted by shifting the floating region location. Splitting of the electric field into two parts reduces the maximum of the electric field. Vt1 can be adjusted volt-by-volt to suit application needs. ESD capability is increased by better current distribution in the silicon. This provides the advantages of reduced die size, faster time-to-market, less redesign cost, and better ESD performance.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: January 30, 2007
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Michel Zecri, Patrice Besse, Nicolas Nolhier
  • Patent number: 7166866
    Abstract: A silicon semiconductor die comprises a heavily doped silicon substrate and an upper layer comprising doped silicon of a first conduction type disposed on the substrate. The upper layer comprises a well region of a second, opposite conduction type adjacent an edge termination zone that comprises a layer of a material having a higher critical electric field than silicon. Both the well region and adjacent edge termination zone are disposed at an upper surface of the upper layer, and an oxide layer overlies the upper layer and the edge termination zone. A process for forming a silicon die having improved edge termination. The process comprises forming an upper layer comprising doped silicon of a first conduction type on a heavily doped silicon substrate, and forming an edge termination zone that comprises a layer of a material having a higher critical electric field than silicon at an upper surface of the upper layer.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: January 23, 2007
    Assignee: Intersil America
    Inventors: Jun Zeng, Gary Mark Dolry, Praveen MurAleedharan
  • Patent number: 7160793
    Abstract: A RESURF trench gate MOSFET has a sufficiently small pitch (close spacing of neighbouring trenches) that intermediate areas of the drain drift region are depleted in the blocking condition of the MOSFET. However, premature breakdown can still occur in this known device structure at the perimeter/edge of the active device area and/or adjacent the gate bondpad. To counter premature breakdown, the invention adopts two principles: the gate bondpad is either connected to an underlying stripe trench network surrounded by active cells, or is directly on top of the active cells, and a compatible 2D edge termination scheme is provided around the RESURF active device area. These principles can be implemented in various cellular layouts e.g.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: January 9, 2007
    Assignee: NXP B.V.
    Inventors: Raymond J. E. Hueting, Erwin A. Hijzen, Michael A. A. In't Zandt
  • Patent number: 7141831
    Abstract: An SCR device having a first P type region disposed in a semiconductor body and electrically connected to anode terminal of the device. At least one N type region is also disposed in the body adjacent the first P type region so as to form a PN junction having a width Wn near a surface of the semiconductor body. A further P type region is also disposed in the body to form a further PN junction with the N type region, with the junction having a width Wp near the body surface, with Wp being at least 1.5 times width Wn. A further N type region is provided which is electrically connected to a cathode terminal of the device and forming a third PN junction with the further N type region.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: November 28, 2006
    Assignee: National Semiconductor Corporation
    Inventors: Vladislav Vashchenko, Peter J. Hopper, Yuri Mirgorodski
  • Patent number: 7129533
    Abstract: A method and apparatus to form a high-concentration, indium-fluorine retrograde well within a substrate. The indium-fluorine retrograde well includes an indium concentration greater than about 3E18/cm3.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: October 31, 2006
    Assignee: Intel Corporation
    Inventors: Cory E. Weber, Mark A. Armstrong, Stephen M. Cea, Giuseppe Curello, Sing-Chung Hu, Aaron D. Lilak, Max Wei
  • Patent number: 7126156
    Abstract: A semiconductor device includes a control circuit for carrying out gamma correction of a supplied signal, and a memory for storing data used in the gamma correction. The control circuit and the memory are constituted by TFTs, and are integrally formed on the same insulating substrate. A semiconductor display device includes a pixel region in which a plurality of TFTs are arranged in matrix; a driver for switching the plurality of TFTs; a picture signal supply source for supplying a picture signal; a control circuit for carrying out gamma correction of the picture signal; and a memory for storing data used in the gamma correction of the picture signal. The plurality of TFTs, the driver, the control circuit, and the memory are integrally formed on the same insulating substrate.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: October 24, 2006
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama
  • Patent number: 7112465
    Abstract: Ultra thin back-illuminated photodiode array structures and fabrication methods. The photodiode arrays are back illuminated photodiode arrays having a substrate of a first conductivity type having first and second surfaces, the second surface having a layer of the first conductivity type having a greater conductivity than the substrate. The arrays also have a matrix of regions of a first conductivity type of a higher conductivity than the substrate extending from the first surface of the substrate to the layer of the first conductivity type having a greater conductivity than the substrate, a plurality of regions of the second conductivity type interspersed within the matrix of regions of the first conductivity type and not extending to the layer of the first conductivity type on the second surface of the substrate, and a plurality of contacts on the first surface for making electrical contact to the matrix of regions of the first conductivity type and the plurality of regions of the second conductivity type.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: September 26, 2006
    Assignee: Semicoa Semiconductors
    Inventors: Alexander O. Goushcha, Chris Hicks, Richard A. Metzler, Mark Kalatsky, Eddie Bartley, Dan Tulbure
  • Patent number: 7084441
    Abstract: Transistors and/or methods of fabricating transistors that include a source contact, drain contact and gate contact are provided. In some embodiments, a channel region is provided between the source and drain contacts and at least a portion of the channel regions includes a hybrid layer comprising semiconductor material. In particular embodiments of the present invention, the transistor is a current aperture transistor. The channel region may include pendeo-epitaxial layers or epitaxial laterally overgrown layers. Transistors and methods of fabricating current aperture transistors that include a trench that extends through the channel and barrier layers and includes semiconductor material therein are also provided.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: August 1, 2006
    Assignee: Cree, Inc.
    Inventor: Adam William Saxler