With Pn Junction Isolation Patents (Class 257/544)
  • Patent number: 8278639
    Abstract: A high integration phase change memory device includes a semiconductor substrate including an access device, a heating electrode formed on the access device, a phase change nano band formed on the heating electrode, and an interlayer insulating layer for supporting the phase change nano band formed in both sides of the phase change nano band.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: October 2, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Se Ho Lee
  • Publication number: 20120241910
    Abstract: A semiconductor memory device includes a semiconductor substrate, a plurality of element isolations, a plurality of first stacked bodies, a second stacked body, and an interlayer insulating film. Distance between each of the first stacked bodies and the second stacked body is longer than distance between adjacent ones of the first stacked bodies. A first void is formed in the interlayer insulating film between the first stacked bodies. A second void is formed in the interlayer insulating film between one of the first stacked bodies and the second stacked body. And, a lower end of the second void is located above a lower end of the first void.
    Type: Application
    Filed: September 16, 2011
    Publication date: September 27, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Jun OGI, Takeshi Kamigaichi, Tatsuo Izumi
  • Patent number: 8270131
    Abstract: An electrostatic discharge (ESD) protection element is described, the ESD protection element including a collector area, a first barrier area, a semiconductor area, a second barrier area and an emitter area. The collector area has a first conductivity type. The first barrier area borders on the collector area and has a second conductivity type. The semiconductor area borders on the first barrier area and is an intrinsic semiconductor area, or has the first or second conductivity type and a dopant concentration which is lower than a dopant concentration of the first barrier area. The second barrier area borders on the semiconductor area and has the second conductivity type and a higher dopant concentration than the semiconductor area. The emitter area borders on the second barrier area and has the first conductivity type.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: September 18, 2012
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Klein, Hans Taddiken, Winfried Bakalski
  • Patent number: 8260098
    Abstract: An optocoupler device facilitates on-chip galvanic isolation. In accordance with various example embodiments, an optocoupler circuit includes a silicon-on-insulator substrate having a silicon layer on a buried insulator layer, a silicon-based light-emitting diode (LED) having a silicon p-n junction in the silicon layer, and a silicon-based photodetector in the silicon layer. The LED and photodetector are respectively connected to galvanically isolated circuits in the silicon layer. A local oxidation of silicon (LOCOS) isolation material and the buried insulator layer galvanically isolate the first circuit from the second circuit to prevent charge carriers from moving between the first and second circuits. The LED and photodetector communicate optically to pass signals between the galvanically isolated circuits.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: September 4, 2012
    Assignee: NXP B.V.
    Inventors: Dusan Golubovic, Gerhard Koops, Tony Vanhoucke, Rob Van Dalen
  • Publication number: 20120187473
    Abstract: A MOSFET switch which has a low surface electric field at an edge termination area, and also has increased breakdown voltage. The MOSFET switch has a new edge termination structure employing an N-P-N sandwich structure. The MOSFET switch also has a polysilicon field plate configuration operative to enhance any spreading of any depletion layer located at an edge of a main PN junction of the N-P-N sandwich structure.
    Type: Application
    Filed: April 12, 2011
    Publication date: July 26, 2012
    Applicant: MAXPOWER SEMICONDUCTOR INC.
    Inventors: Jun Zeng, Mohamed N. Darwish, Shih-Tzung Su
  • Publication number: 20120161285
    Abstract: An integrated circuit structure includes a semiconductor substrate of a first conductivity type; and a depletion region in the semiconductor substrate. A deep well region is substantially enclosed by the depletion region, wherein the deep well region is of a second conductivity type opposite the first conductivity type. The depletion region includes a first portion directly over the deep well region and a second portion directly under the deep well region. An integrated circuit device is directly over the depletion region.
    Type: Application
    Filed: March 5, 2012
    Publication date: June 28, 2012
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chewn-Pu Jou, Ho-Hsiang Chen
  • Publication number: 20120081968
    Abstract: A semiconductor memory device that has an isolated area formed from one conductivity and formed in part by a buried layer of a second conductivity that is implanted in a substrate. The walls of the isolated area are formed by implants that are formed from the second conductivity and extend down to the buried layer. The isolated region has implanted source lines and is further subdivided by overlay strips of the second conductivity that extend substantially down to the buried layer. Each isolation region can contain one or more blocks of memory cells.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 5, 2012
    Inventor: Frankie F. Roohparvar
  • Patent number: 8148774
    Abstract: To provide a semiconductor device in which an interval between first wells can be shortened by improving a separation breakdown voltage between the first wells and a method for manufacturing the same.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: April 3, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Hidemitsu Mori, Kazuhiro Takimoto, Toshiyuki Shou, Kenji Sasaki, Yutaka Akiyama
  • Patent number: 8143700
    Abstract: The present invention provides an electrostatic discharge (ESD) protection circuit with a silicon controlled rectifier (SCR) having a plurality of SCR fingers (SCRs) with the advantages to couple the different fingers or SCRs to decrease the multi-triggering problem and to increase the ESD-performance of the circuit. Additionally, a boost circuit can be introduced or additionally multiple SCRs can be coupled inherent through a common base.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: March 27, 2012
    Assignee: Sofics BVBA
    Inventors: Pieter Vanysacker, Benjamin Van Camp, Olivier Marichal, Wybo Geert, Steven Thijs, Gerd Vermont
  • Patent number: 8138575
    Abstract: An integrated circuit and a production method is disclosed. One embodiment forms reverse-current complexes in a semiconductor well, so that the charge carriers, forming a damaging reverse current, cannot flow into the substrate.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: March 20, 2012
    Assignee: Infineon Technologies AG
    Inventor: Matthias Stecher
  • Patent number: 8134212
    Abstract: An n-type isolation structure is disclosed which includes an n-type BISO layer in combination with a shallow n-well, in an IC. The n-type BISO layer is formed by implanting n-type dopants into a p-type IC substrate in addition to a conventional n-type buried layer (NBL), prior to growth of a p-type epitaxial layer. The n-type dopants in the BISO implanted layer diffuse upward from the p-type substrate to between one-third and two-thirds of the thickness of the p-type epitaxial layer. The shallow n-type well extends from a top surface of the p-type epitaxial layer to the n-type BISO layer, forming a continuous n-type isolation structure from the top surface of the p-type epitaxial layer to the p-type substrate. The width of the n-type BISO layer may be less than the thickness of the epitaxial layer, and may be used alone or with the NBL to isolate components in the IC.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: March 13, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Pinghai Hao, Seetharaman Sridhar, James Robert Todd
  • Publication number: 20120056304
    Abstract: A wafer, a fabricating method of the same, and a semiconductor substrate are provided. The wafer includes a first substrate layer formed at a first surface, a second substrate layer formed at a second surface opposite to the first surface, the second substrate layer having a greater oxygen concentration than the first substrate layer, and an oxygen diffusion protecting layer formed between the first substrate layer and the second substrate layer, the oxygen diffusion protecting layer being located closer to the first surface than to the second surface.
    Type: Application
    Filed: July 8, 2011
    Publication date: March 8, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-Ha Hwang, Young-Soo Park, Sam-Jong Choi, Joon-Young Choi, Tae-Hyoung Koo
  • Patent number: 8129817
    Abstract: An integrated circuit structure includes a semiconductor substrate of a first conductivity type; and a depletion region in the semiconductor substrate. A deep well region is substantially enclosed by the depletion region, wherein the deep well region is of a second conductivity type opposite the first conductivity type. The depletion region includes a first portion directly over the deep well region and a second portion directly under the deep well region. An integrated circuit device is directly over the depletion region.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: March 6, 2012
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chewn-Pu Jou, Ho-Hsiang Chen
  • Publication number: 20120049325
    Abstract: An integrated circuit having a semiconductor component arrangement and production method is disclosed. In one embodiment, an oxide layer region is provided as a protection against oxidation in the edge region on the surface region of an underlying semiconductor material region.
    Type: Application
    Filed: November 8, 2011
    Publication date: March 1, 2012
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventor: Gerhard Schmidt
  • Patent number: 8102024
    Abstract: A semiconductor integrated circuit having a diode element includes a diffusion layer which constitutes the anode and two diffusion layers which are provided on the left and right sides of the anode and which constitute the cathode, such that the anode and the cathode constitute the diode. A well contact is provided to surround both the diffusion layers of the anode and cathode. Distance tS between a longer side of the well contact and the diffusion layers of the cathode is shorter, while distance tL between a shorter side of the well contact and the diffusion layers of the anode and cathode is longer (tL>tS). Accordingly, the resistance value between the diffusion layer of the anode and the shorter side of the well contact is larger, so that the current from the diffusion layer of the anode is unlikely to flow toward the shorter side of the well contact.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: January 24, 2012
    Assignee: Panasonic Corporation
    Inventor: Shiro Usami
  • Publication number: 20120012975
    Abstract: A semiconductor integrated circuit device includes a semiconductor substrate including a digital circuit area and an analog circuit area that is divided into an active element area disposed away from the digital circuit area and a passive element area disposed adjacent to the digital circuit area; a first well having a first conductivity type that is different from a second conductivity type of the semiconductor substrate and formed in a part of the semiconductor substrate corresponding to the passive element area; a second well having the second conductivity type and formed in the first well; a device isolation film formed on the second well; a digital circuit formed in the digital circuit area; an active element implemented by an analog circuit and formed in the active element area; and a passive element implemented by an analog circuit and formed on the device isolation film in the passive element area.
    Type: Application
    Filed: June 27, 2011
    Publication date: January 19, 2012
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventor: Fumihiro INOUE
  • Patent number: 8093676
    Abstract: A semiconductor component includes a semiconductor body having a first side, a second side, an edge delimiting the semiconductor body in a lateral direction, an inner region and an edge region. A first semiconductor zone of a first conduction type is arranged in the inner region and in the edge region. A second semiconductor zone of a second conduction type is arranged in the inner region and adjacent to the first semiconductor zone. A trench is arranged in the edge region and has first and second sidewalls and a bottom, and extends into the semiconductor body. A doped first sidewall zone of the second conduction type is adjacent to the first sidewall of the trench. A doped second sidewall zone of the second conduction type is adjacent to the second sidewall of the trench. A doped bottom zone of the second conduction type is adjacent to the bottom of the trench. Doping concentrations of the sidewall zones are lower than a doping concentration of the bottom zone.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: January 10, 2012
    Assignee: Infineon Technologies Austria AG
    Inventor: Gerhard Schmidt
  • Patent number: 8093577
    Abstract: A three-dimensional phase-change memory array. In one embodiment of the invention, the memory array includes a first plurality of diodes, a second plurality of diodes disposed above the first plurality of diodes, a first plurality phase-change memory elements disposed above the first and second plurality of diodes and a second plurality of memory elements disposed above the first plurality of memory elements.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: January 10, 2012
    Assignee: Ovonyx, Inc.
    Inventor: Tyler Lowrey
  • Patent number: 8084843
    Abstract: A semiconductor memory device that has an isolated area formed from one conductivity and formed in part by a buried layer of a second conductivity that is implanted in a substrate. The walls of the isolated area are formed by implants that are formed from the second conductivity and extend down to the buried layer. The isolated region has implanted source lines and is further subdivided by overlay strips of the second conductivity that extend substantially down to the buried layer. Each isolation region can contain one or more blocks of memory cells.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: December 27, 2011
    Assignee: Micron Technology, Inc.
    Inventor: Frankie F. Roohparvar
  • Patent number: 8076669
    Abstract: An organic light emitting display includes an organic light emitting diode formed on a substrate, coupled to a transistor; a photodiode formed on the substrate and including a semiconductor layer including a high-concentration P doping region, an intrinsic region with defects and a high-concentration N doping region; and a controller that uniformly controls the luminance of light emitted from the organic light emitting diode by controlling a voltage applied to the first electrode and the second electrode according to the voltage outputted from the photodiode.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: December 13, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Chul-kyu Kang, Byoung-keon Park
  • Publication number: 20110291241
    Abstract: A semiconductor device that has a reduced size and exhibits a superior blocking voltage capability. A semiconductor device includes an edge termination structure between an active region and an isolation region, the edge termination structure being composed of an edge termination structure for a forward bias section and an edge termination structure for a reverse bias section. A plurality of field limiting rings (FLRs) and a plurality of field plates (FPs) are provided in the edge termination structure for the forward bias section and the edge termination structure for the reverse bias section. A first forward FP that is the nearest of the plurality of FPs to the edge termination structure for the reverse bias section is formed to extend towards the isolation region side. A first reverse FP that is the nearest of the plurality of FPs to the edge termination structure for the forward bias section is formed to extend towards the active region side.
    Type: Application
    Filed: May 26, 2011
    Publication date: December 1, 2011
    Applicant: Fuji Electric Co., Ltd.
    Inventors: Koh YOSHIKAWA, Kenichi Iguchi
  • Publication number: 20110241171
    Abstract: Provided are a method of fabricating a semiconductor integrated circuit device and a semiconductor integrated circuit device fabricated using the method. The method includes: forming a mask film, which exposes a portion of a substrate, on the substrate; forming a first buried impurity layer, which contains impurities of a first conductivity type and of a first concentration, in a surface of the exposed portion of the substrate by using the mask film; removing the mask film; forming a second buried impurity layer, which contains impurities of a second conductivity type and of a second concentration, using blank implantation; and forming an epitaxial layer on the substrate having the first and second buried impurity layers, wherein the first concentration is higher than the second concentration.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yong-Don Kim, Eung-Kyu Lee, Sung-Ryoul Bae, Soo-Bang Kim, Dong-Eun Jang
  • Patent number: 8018019
    Abstract: A semiconductor having a an n-type material and a p-type material, wherein the n-type material and p-type material are joined to form a space-charge-free p-n junction. The energy of the Fermi-level of the n-type material is equal to the energy of the Fermi-level of the p-type material. This allows for the pre-alignment of the Fermi-levels of the n-type and the p-type materials. The semiconductor has minimal or no g-r noise. The semiconductor can be operated at TBLIP in the range of about 220° to about 240° K.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: September 13, 2011
    Assignee: University of Rochester
    Inventor: Gary Wicks
  • Patent number: 7999333
    Abstract: In a conventional semiconductor device, there has been a problem that, in a region where a wiring layer to which a high electric potential is applied traverses a top surface of an isolation region, the withstand voltage is deteriorated. In a semiconductor device of the present invention, an epitaxial layer is deposited on a substrate, and an LDMOSFET is formed in one region divided by an isolation region. In a region where a wiring layer connected to a drain electrode traverses a top surface of the isolation region, a conductive plate having a ground electric potential and another conductive plate in a floating state are formed under the wiring layer. With this structure, electric field is reduced in the vicinity of the isolation region under the wiring layer, whereby a withstand voltage of the LDMOSFET is increased.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: August 16, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shuichi Kikuch, Shigeaki Okawa, Kiyofumi Nakaya, Toshiyuki Takahashi
  • Patent number: 7994542
    Abstract: A semiconductor device of the present invention comprises a logic circuit to which a power supply voltage, a sub-power supply voltage, a ground voltage and a sub-ground voltage are supplied; a driver for generating the sub-power supply voltage and the sub-ground voltage based on the power supply voltage and the ground voltage; a first wiring layer including a sub-power supply line for supplying the sub-power supply voltage and a sub-ground line for supplying the sub-ground voltage; a second wiring layer including source/drain lines for MOS transistors; a third wiring layer including a main power supply line for supplying the power supply voltage and a main ground line for supplying the ground voltage and arranged opposite to the first wiring layer to sandwich the second wiring layer; via structures for connecting the source/drain lines of the second wiring layer to the other layers.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: August 9, 2011
    Assignee: Elpida Memory, Inc.
    Inventors: Hirokazu Ato, Kazuhiko Matsuki
  • Patent number: 7994032
    Abstract: The present disclosure provides an image sensor semiconductor device. The semiconductor device includes a substrate having a front surface and a back surface; a plurality of sensor elements formed on the front surface of the substrate, each of the plurality of sensor elements configured to receive light directed towards the back surface; and an aluminum doped feature formed in the substrate and disposed horizontally between two adjacent elements of the plurality of sensor elements and vertically between the back surface and the plurality of sensor elements.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: August 9, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shang-Yi Chiang, Chung Wang, Shou-Gwo Wuu, Dun-Nian Yaung
  • Publication number: 20110175197
    Abstract: A semiconductor integrated circuit device includes: a plurality of data holding circuits; and a plurality of wells. The plurality of data holding circuits is provided in a substrate of a first conductive type. Each of the plurality of data holding circuits includes a first well of the first conductive type and a second well of a second conductive type different from the first conductive type. The plurality of wells is arranged in two directions for the each of the plurality of data holding circuits.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 21, 2011
    Inventor: Hiroshi FURUTA
  • Patent number: 7977762
    Abstract: An integrated circuit (IC) is disclosed to include a central area of the IC that is partitioned into a first section containing at least one digital circuit and a second section containing at least one analog circuit; and a guard strip (or shield) that is within the central area and that is positioned within between the digital circuit and the analog circuit. The shield or guard strip comprises of n-well and p-tap regions that separate digital and analog circuits.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: July 12, 2011
    Assignee: Alvand Technologies, Inc.
    Inventors: Mansour Keramat, Mehrdad Heshami, Syed S. Islam
  • Patent number: 7955926
    Abstract: In one embodiment, the present invention provides a method of fabricating a semiconducting device that includes providing a substrate including at least one semiconducting region and at least one oxygen source region; forming an oxygen barrier material atop portions of an upper surface of the at least one oxygen region; forming a high-k gate dielectric on the substrate including the at least one semiconducting region, wherein oxygen barrier material separates the high-k gate dielectric from the at least one oxygen source material; and forming a gate conductor atop the high-k gate dielectric.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 7, 2011
    Assignee: International Business Machines Corporation
    Inventors: Wesley C. Natzle, Renee T. Mo, Rashmi Jha, Kathryn T. Schonenberg, Richard A. Conti
  • Publication number: 20110115047
    Abstract: Methods and structures for a semiconductor device can use mask openings of varying widths to form structures of different depths, different materials, and different functionality. For example, processes and structures for forming shallow trench isolation, deep isolation, trench capacitors, base, emitter, and collector, among other structures for a lateral bipolar transistor are described.
    Type: Application
    Filed: June 4, 2010
    Publication date: May 19, 2011
    Inventors: Francois Hebert, Aaron Gibby, Stephen Joseph Gaul
  • Publication number: 20110089533
    Abstract: An active barrier structure has a p-type region and an n-type region, each of which is in contact with a p-type impurity region and which are ohmic-connected to each other to attain a floating potential. A trench isolation structure is formed between an active barrier region and the other region (an output transistor formation region and a control circuit formation region). The trench isolation structure has a trench extending from the main surface of the semiconductor substrate through then epitaxial layer to reach the p-type impurity region. Therefore, a semiconductor device is obtained which allows the chip size to be reduced easily and is highly effective in preventing movement of electrons from the output transistor formation region to the other element formation region.
    Type: Application
    Filed: December 22, 2010
    Publication date: April 21, 2011
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Fumitoshi YAMAMOTO
  • Patent number: 7902051
    Abstract: The present invention, in one embodiment, provides a method of producing a PN junction the method including providing a single crystal substrate; forming an insulating layer on the single crystal substrate; forming a via through the insulating layer to provide an exposed portion of the single crystal substrate; forming amorphous Si on at least the exposed portion of the single crystal substrate; converting at least a portion of the amorphous Si into single crystal Si; and forming dopant regions in the single crystal Si. In one embodiment the diode of the present invention is integrated with a memory device.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 8, 2011
    Assignees: International Business Machines Corporation, Qimonda AG, Macronix International Co., Ltd.
    Inventors: Bipin Rajendran, Thomas Happ, Hsiang-Lan Lung
  • Patent number: 7888768
    Abstract: In one embodiment, a power integrated circuit device is provided. The power integrated circuit device includes a high-side power switch having a high voltage transistor and a low voltage transistor. The high voltage transistor has a gate, a source, and a drain, and is capable of withstanding a high voltage applied to its drain. The low voltage transistor has a gate, a source, and a drain, wherein the drain of the low voltage transistor is connected to the source of the high voltage transistor and the source of the low voltage transistor is connected to the gate of the high voltage transistor, and wherein a control signal is applied to the gate of the low voltage transistor from the power integrated circuit device.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: February 15, 2011
    Assignee: Fairchild Korea Semiconductor, Ltd.
    Inventors: Sung-lyong Kim, Chang-ki Jeon, Jong-jib Kim, Jong-tae Hwang
  • Patent number: 7888764
    Abstract: A semiconductor structure includes an interconnect region and a semiconductor stack bonded to the interconnect region through a bonding region. The stack includes at least two semiconductor layers having different electrical properties. The stack also includes single crystalline semiconductor material. The stack can be processed to form a mesa structure and the mesa structure can be processed to from a vertically oriented semiconductor device.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 15, 2011
    Inventor: Sang-Yun Lee
  • Patent number: 7888775
    Abstract: Some embodiments relate to an apparatus that exhibits vertical diode activity to occur between a semiconductive body and an epitaxial film that is disposed over a doping region of the semiconductive body. Some embodiments include an apparatus that causes both vertical and lateral diode activity. Some embodiments include a gated vertical diode for a finned semiconductor apparatus. Process embodiments include the formation of vertical-diode apparatus.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: February 15, 2011
    Assignee: Infineon Technologies AG
    Inventors: Christian Russ, Christian Pacha, Snezana Jenei, Klaus Schruefer
  • Publication number: 20110025406
    Abstract: A power semiconductor component including a semiconductor body and two load terminals is provided. Provided furthermore is a potential probe positioned to tap an electric intermediate potential of the semiconductor body at a tap location of the semiconductor body for an electric voltage applied across the two load terminals, the intermediate potential being intermediate to the electric potentials of the two load terminals, but differing from each of the two electric potentials of the two load terminals.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 3, 2011
    Applicant: INFINEON TECHNOOGIES AG
    Inventor: Peter Kanschat
  • Publication number: 20110024803
    Abstract: A channel stop is provided for a semiconductor device that includes at least one active region. The channel stop is configured to surround the semiconductor device, to abut the at least one active region at a periphery of the semiconductor device, and to share an electrical connection with the at least one active region.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Applicant: POLAR SEMICONDUCTOR, INC.
    Inventors: William Larson, Gregory Michaelson
  • Patent number: 7880262
    Abstract: An active barrier structure has a p-type region and an n-type region, each of which is in contact with a p-type impurity region and which are ohmic-connected to each other to attain a floating potential. A trench isolation structure is formed between an active barrier region and the other region (an output transistor formation region and a control circuit formation region). The trench isolation structure has a trench extending from the main surface of the semiconductor substrate through the n? epitaxial layer to reach the p-type impurity region. Therefore, a semiconductor device is obtained which allows the chip size to be reduced easily and is highly effective in preventing movement of electrons from the output transistor formation region to the other element formation region.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: February 1, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Fumitoshi Yamamoto
  • Patent number: 7868422
    Abstract: The present invention discloses a semiconductor structure. A buried layer of a first polarity type is constructed on a semiconductor substrate. A first epitaxial layer of a second polarity type is formed on the buried layer. A second epitaxial layer of the second polarity type is formed on the buried layer. An isolation structure of the first polarity type is formed between the first and second epitaxial layers on the buried layer. A first well of the second polarity type is formed on the first epitaxial layer. A second well of the second polarity type is formed on the second epitaxial layer. A third well of the first polarity type is formed between the first and second wells, on the isolation structure. The isolation structure interfaces with the buried layer and the third well, thereby substantially blocking a leakage current path between the first and the second wells.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: January 11, 2011
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Kuo-Ting Lee, You-Kuo Wu, Fu-Hsin Chen, An-Ming Chiang
  • Patent number: 7855407
    Abstract: Embodiments relate to a Complementary Metal Oxide Semiconductor (CMOS) image sensor, and to a method for manufacturing the same, that improves the low-light level characteristics of the CMOS image sensor. The CMOS image sensor has a photosensor unit and a signal processing unit, and may include a semiconductor substrate having a device isolating implant area provided with a first ion implant area and a complementary second ion implant area within the first ion implant area; a device isolating layer in the signal processing unit; a photodiode in the photosensor unit; and transistors in the signal processing unit. A crystal defect zone neighboring the photodiode may be minimized using the device isolating implant area between adjacent photodiodes so that a source of dark current can be reduced and the occurrence of interface traps can be prevented, making it possible to improve the low-light level characteristics of the image sensor.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: December 21, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Hee Sung Shim
  • Patent number: 7834421
    Abstract: Various integrated circuit devices, in particular a diode, are formed inside an isolation structure which includes a floor isolation region and a trench extending from the surface of the substrate to the floor isolation region. The trench may be filled with a dielectric material or may have a conductive material in a central portion with a dielectric layer lining the walls of the trench. Various techniques for terminating the isolation structure by extending the floor isolation region beyond the trench, using a guard ring, and a forming a drift region are described.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: November 16, 2010
    Assignee: Advanced Analogic Technologies, Inc.
    Inventors: Donald R. Disney, Richard K. Williams
  • Patent number: 7825492
    Abstract: A method for manufacturing an isolated vertical power device includes forming, in a back surface of a first conductivity type substrate, back isolation wall trenches that surround a conduction region of the device. In a front surface of the substrate, front isolation wall trenches are formed around the conduction region. Thereafter, a film containing a second type dopant is deposited in the front and back isolation wall trenches. In the conduction region on the back surface, conduction region trenches are formed inside the perimeter of the isolation wall trenches. A first type dopant is deposited in the conduction region trenches. The dopants are diffused from the conduction region trenches and isolation wall trenches to form a first conductivity type conduction region structure and a second conductivity type isolation wall.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: November 2, 2010
    Assignee: STMicroelectronics, Inc.
    Inventor: Richard Austin Blanchard
  • Patent number: 7816742
    Abstract: Systems and methods for integrated circuits comprising multiple body biasing domains. In accordance with a first embodiment of the present invention, a semiconductor structure comprises a substrate of first type material. A first closed structure comprising walls of second type material extends from a surface of the substrate to a first depth. A planar deep well of said second type material underlying and coupled to the closed structure extends from the first depth to a second depth. The closed structure and the planar deep well of said second type material form an electrically isolated region of the first type material. A second-type semiconductor device is disposed to receive a first body biasing voltage from the electrically isolated region of the first type material. A well of the second-type material within the electrically isolated region of the first type material is formed and a first-type semiconductor device is disposed to receive a second body biasing voltage from the well of second-type material.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: October 19, 2010
    Inventors: Kleanthes G. Koniaris, Robert Paul Masleid, James B. Burr
  • Patent number: 7808078
    Abstract: A semiconductor integrated circuit is reduced in size by suppressing lateral extension of an impurity region when impurities in the impurity region are thermally diffused in a semiconductor substrate. A second photoresist is formed on an insulation film. The second photoresist is formed to have second openings K2 on both sides of a P-type impurity region so that the second openings K2 partially overlap the P-type impurity region. The insulation film is etched off together with an underlying surface of the semiconductor substrate using the second photoresist as a mask so as to remove the P-type impurity region partially. Then, phosphorus ions (P+) are implanted into the surface of the semiconductor substrate in the etched-off regions using the second photoresist as a mask to form N-type impurity regions that are adjacent the P-type impurity region. After removing the second photoresist, the impurities in the P-type impurity region and the impurities in the N-type impurity region are thermally diffused.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: October 5, 2010
    Assignees: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd., Sanyo Semiconductor Manufacturing Co., Ltd.
    Inventor: Keiji Mita
  • Patent number: 7804132
    Abstract: A gate electrode is provided such that both ends thereof in a gate width direction are projected from an active region in plane view. Partial trench isolation insulation films are provided in a surface of an SOI substrate corresponding to lower parts of the both ends, and body contact regions are provided in the surface of the SOI substrate outside the both ends of the gate electrode in the gate width direction so as to be adjacent to the respective partial trench isolation insulation films. The body contact region and a body region are electrically connected through an SOI layer (well region) under the partial trench isolation insulation film. In addition, a source tie region in which P type impurity is doped in a relatively high concentration is provided in the surface of a source region in the vicinity of the center of the gate electrode in the gate width direction.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: September 28, 2010
    Assignee: Renesas Technology Corp.
    Inventor: Yuichi Hirano
  • Patent number: 7795702
    Abstract: Embodiments of microelectronic assemblies are provided. First and second semiconductor devices are formed over a substrate having a first dopant type at a first concentration. First and second buried regions having a second dopant type are formed respectively below the first and second semiconductor devices with a gap therebetween. At least one well region is formed over the substrate and between the first and second semiconductor devices. A barrier region having the first dopant type at a second concentration is formed between and adjacent to the first and second buried regions such that at least a portion of the barrier region extends a depth from the first and second semiconductor devices that is greater or equal to the depth of the buried regions.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: September 14, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Won Gi Min, Veronique C. Macary, Jiang-Kai Zuo
  • Patent number: 7791170
    Abstract: The present disclosure provides an image sensor semiconductor device. The semiconductor device includes a substrate having a front surface and a back surface; a plurality of sensor elements formed on the front surface of the substrate, each of the plurality of sensor elements configured to receive light directed towards the back surface; and an aluminum doped feature formed in the substrate and disposed horizontally between two adjacent elements of the plurality of sensor elements and vertically between the back surface and the plurality of sensor elements.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: September 7, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shang-Yi Chiang, Chung Wang, Shou-Gwo Wuu, Dun-Nian Yaung
  • Patent number: 7768100
    Abstract: This invention is directed to improve the electrostatic discharge strength and the latch-up strength of the semiconductor integrated circuit. To achieve the certain level of stable quality of the semiconductor integrated circuit by eliminating the variety in the electrostatic discharge strength and the latch-up strength is also aimed. The first NPN type bipolar transistor 3 and the second NPN type bipolar transistor 4 in the electrostatic discharge protection cell EC 1 are surrounded by the isolation region 6 made of the P+ type semiconductor layer and electronically isolated from other elements. The width WB1 of the isolating region 6 is larger than the width WB2 of the isolation region 7 that separates the elements comprising the internal circuit 50 from each other. This configuration can efficiently improve the electrostatic discharge strength and the latch-up strength.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: August 3, 2010
    Assignees: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd.
    Inventor: Fuminori Hashimoto
  • Patent number: 7763955
    Abstract: A description is given of a concept for reducing shunt currents in a semiconductor body.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: July 27, 2010
    Assignee: Infineon Technologies AG
    Inventors: Herbert Gietler, Marc Strasser
  • Patent number: 7750437
    Abstract: A semiconductor device has a rectifier circuit and integrated circuit on a semiconductor substrate of a first conduction type, and has a first well region in the substrate, a second well region in first well region, and a diode region formed in second well region and constituting a diode with second well region. The rectifier circuit is formed by the diodes. An input power supply terminal, changing between positive and negative potentials, is connected to second and first well regions of a first diode and to diode region of a second diode. A current supply terminal is provided in the vicinity of first well region of first diode, and is connected to the substrate and a prescribed power supply, so as to supply a current to the PN junction between the first well region and the semiconductor substrate when the input power supply terminal is at negative potential.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: July 6, 2010
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Hideaki Suzuki, Hidetoshi Sugiyama