In Combination With Diode, Capacitor, Or Resistor (epo) Patents (Class 257/E27.033)
  • Patent number: 11837848
    Abstract: A fly-back or boost stage transfers its stored energy to the energy storage capacitor of the fast driver discharge stage in a single event pulse. The charging voltage of a single flyback pulse on the capacitor is measured in real time and, if necessary, the charging current is diverted via a shunt active device or transistor, to ground, thus preventing the storage capacitor from overcharging with the risk of component damage. A series sense resistor is used to determine the presence and amount of the wasted shunt current in order that this current may be minimized by turning down the flyback energy, thus maximizing the overall efficiency.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: December 5, 2023
    Assignee: Analog Modules, Inc.
    Inventors: Ian D Crawford, Jeff Richter
  • Patent number: 11451161
    Abstract: A power switcher includes a first normally-off transistor that switches between interrupting and not interrupting a current path between first and second electrodes according to a drive voltage input to a first control electrode, a second normally-on transistor cascode-connected to the first transistor and including a second control electrode to which the second electrode of the first transistor is connected, a control voltage generator that generates a control voltage in accordance with a voltage between the first and second electrodes of the first transistor, and a drive voltage generator that generates a drive voltage equal to or lower than a withstand voltage of the first transistor in accordance with the control voltage.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: September 20, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yusuke Hayashi, Kazuto Takao, Kentaro Ikeda
  • Patent number: 11282954
    Abstract: A structural body made of semiconductor material includes an active area housing a drain region, a body region and a source region within the body region. An electrical-isolation trench extends in the structural body to surround the active area. A first PN-junction and a second PN-junction are integrated in the structural body between the active area and the trench, respectively located on opposite sides of the active area. The first and the second PN-junctions form a first diode and a second diode, with each diode having a respective cathode electrically coupled to the drain region of the MOSFET device and a respective anode electrically coupled to the source region of the MOSFET device.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 22, 2022
    Assignee: STMicroelectronics S.r.l.
    Inventors: Marco Sambi, Michele Basso, Stefano Corona, Leonardo Di Biccari
  • Patent number: 9887187
    Abstract: A semiconductor device includes a semiconductor layer having an element formation region in which a semiconductor element is formed. An element isolation well is formed in a surface portion of the semiconductor layer to isolate the element formation region. A field insulating film is formed on a surface of the semiconductor layer. The field insulating film surrounds the element formation region in an annular shape when viewed from a top. An interlayer insulating film is formed on the semiconductor layer. A wiring is formed on the interlayer insulating film. A conductive film is formed on the field insulating film.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: February 6, 2018
    Assignee: ROHM CO., LTD.
    Inventor: Shusaku Fujie
  • Patent number: 9337331
    Abstract: A semiconductor device includes a first semiconductor layer of a first conductivity type, and a second semiconductor layer of a second conductivity type provided on part of the first semiconductor layer in each of a first region and a second region separated from each other. A first distance is a distance between both ends of the first insulating film in a direction connecting the fourth semiconductor layer and the sixth semiconductor layer. The first distance in the first region is longer than the first distance in the second region. A second distance is a distance between the third semiconductor layer and the seventh semiconductor layer. The second distance in the first region is longer than the second distance in the second region.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: May 10, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kanako Komatsu, Mariko Shimizu, Jun Morioka, Keita Takahashi, Masahito Nishigoori
  • Patent number: 8981538
    Abstract: The reliability of a semiconductor device is improved. A semiconductor device has a first metal plate and a second metal plate electrically isolated from the first metal plate. Over the first metal plate, a first semiconductor chip including a transistor element formed thereover is mounted. Whereas, over the second metal plate, a second semiconductor chip including a diode element formed thereover is mounted. Further, the semiconductor device has a lead group including a plurality of leads electrically coupled with the first semiconductor chip or the second semiconductor chip. The first and second metal plates are arranged along the X direction in which the leads are arrayed. Herein, the area of the peripheral region of the first semiconductor chip in the first metal plate is set larger than the area of the peripheral region of the second semiconductor chip in the second metal plate.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: March 17, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Tadatoshi Danno, Toshiyuki Hata, Yuichi Machida
  • Patent number: 8866253
    Abstract: A semiconductor device arrangement includes a first semiconductor device having a load path and a plurality of second semiconductor devices, each having a load path between a first and a second load terminal and a control terminal. The second semiconductor devices have their load paths connected in series and connected in series to the load path of the first semiconductor device. Each of the second semiconductor devices has its control terminal connected to the load terminal of one of the other second semiconductor devices, and one of the second semiconductor devices has its control terminal connected to one of the load terminals of the first semiconductor device. Each of the second semiconductor devices has at least one device characteristic. At least one device characteristic of at least one of the second semiconductor devices is different from the corresponding device characteristic of others of the second semiconductor devices.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: October 21, 2014
    Assignee: Infineon Technologies Dresden GmbH
    Inventors: Rolf Weis, Gerald Deboy, Michael Treu, Armin Willmeroth, Hans Weber
  • Patent number: 8829624
    Abstract: In one general aspect, a semiconductor structure can include a power transistor including a body region extending in a silicon region, a gate electrode insulated from the body region by a gate dielectric, a source region extending in the body region where the source region is of opposite conductivity type from the body region, a source interconnect contacting the source region, and a backside drain. The semiconductor structure can include an RC snubber monolithically integrated with the power transistor in a die. The RC snubber can include a snubber electrode insulated from the silicon region by a snubber dielectric such that the snubber electrode and the silicon region form a snubber capacitor.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: September 9, 2014
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Jon Gladish, Arthur Black
  • Patent number: 8759939
    Abstract: A semiconductor device arrangement includes a semiconductor layer and at least one series circuit with a first semiconductor device and a plurality of n second semiconductor devices, with n>1. The first semiconductor device has a load path and active device regions integrated in the semiconductor layer. Each second semiconductor device has active device regions integrated in the semiconductor layer and a load path between a first and second load terminal and a control terminal. The second semiconductor devices have their load paths connected in series and connected in series to the load path of the first semiconductor device. Each second semiconductor device has its control terminal connected to the load terminal of one of the other second semiconductor devices. One of the second semiconductor devices has its control terminal connected to one of the load terminals of the first semiconductor device. The arrangement further includes an edge termination structure.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: June 24, 2014
    Assignee: Infineon Technologies Dresden GmbH
    Inventor: Rolf Weis
  • Patent number: 8749021
    Abstract: The present invention reveals a semiconductor chip structure and its application circuit network, wherein the switching voltage regulator or converter is integrated with a semiconductor chip by chip fabrication methods, so that the semiconductor chip has the ability to regulate voltage within a specific voltage range. Therefore, when many electrical devices of different working voltages are placed on a Printed Circuit Board (PCB), only a certain number of semiconductor chips need to be constructed. Originally, in order to account for the different demands in voltage, power supply units of different output voltages, or a variety of voltage regulators need to be added. However, using the built-in voltage regulator or converter, the voltage range can be immediately adjusted to that which is needed. This improvement allows for easier control of electrical devices of different working voltages and decreases response time of electrical devices.
    Type: Grant
    Filed: December 25, 2007
    Date of Patent: June 10, 2014
    Assignee: Megit Acquisition Corp.
    Inventors: Mou-Shiung Lin, Gu-Yeon Wei
  • Patent number: 8587094
    Abstract: A semiconductor device having an active element and an MIM capacitor and a structure capable of reducing the number of the manufacturing steps thereof and a manufacturing method therefor are provided. The semiconductor device has a structure that the active element having an ohmic electrode and the MIM capacitor having a dielectric layer arranged between a lower electrode and an upper electrode are formed on a semiconductor substrate, wherein the lower electrode and ohmic electrode have the same structure. In an MMIC 100 in which an FET as an active element and the MIM capacitor are formed on a GaAs substrate 10, for example, a source electrode 16a and a drain electrode 16b, which are ohmic electrodes of the FET, are manufactured simultaneously with a lower electrode 16c of the MIM capacitor. Here the electrodes are formed with the same metal.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: November 19, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hisao Kawasaki
  • Patent number: 8546916
    Abstract: Semiconductor devices, capacitors, and methods of manufacture thereof are disclosed. In one embodiment, a method of fabricating a capacitor includes forming a first material over a workpiece, and patterning the first material, forming a first capacitor plate in a first region of the workpiece and forming a first element in a second region of the workpiece. A second material is formed over the workpiece and over the patterned first material. The second material is patterned, forming a capacitor dielectric and a second capacitor plate in the first region of the workpiece over the first capacitor plate and forming a second element in a third region of the workpiece.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: October 1, 2013
    Assignee: Infineon Technologies AG
    Inventors: Martin Ostermayr, Richard Lindsay
  • Patent number: 8497540
    Abstract: A device comprises a substrate having at least one active region, an insulating layer above the substrate, and an electrode in a gate electrode layer above the insulating layer, forming a metal-oxide-semiconductor (MOS) capacitor. A first contact layer is provided on the electrode, having an elongated first pattern extending in a first direction parallel to the electrode. A contact structure contacts the substrate. The contact structure has an elongated second pattern extending parallel to the first pattern. A dielectric material is provided between the first and second patterns, so that the first and second patterns and dielectric material form a side-wall capacitor connected in parallel to the MOS capacitor.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: July 30, 2013
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chi-Di An, Chien-Hung Chen, Yu-Juan Chan
  • Patent number: 8461644
    Abstract: This invention discloses a transient voltage suppressing (TVS) array disposed on a semiconductor substrate supporting an epitaxial layer of a first conductivity type. The device includes a plurality of isolation trenches opened in said epitaxial layer filled with an insulation material wherein a first and second isolation trenches insulating a first semiconductor region from other semiconductor regions in the substrate. A body region of a second conductivity type is disposed in an upper part of said epitaxial layer wherein the body region extends laterally over an entire length of the first semiconductor region between said first and second isolation trenches. A bipolar transistor comprising two vertically stacked PN junctions disposed between the isolation trenches wherein, the bipolar transistor is triggered by a Zener diode comprising a bottom vertically stacked PN junction between the body region and the epitaxial layer for carrying a transient current for suppressing a transient voltage.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: June 11, 2013
    Assignee: Alpha and Omega Semiconductor Incorporated
    Inventor: Madhur Bobde
  • Patent number: 8410534
    Abstract: Disclosed are integrated circuit structures each having a silicon germanium film incorporated as a local interconnect and/or an electrical contact. These integrated circuit structures provide improved local interconnects between devices and/or increased capacitance to devices without significantly increasing structure surface area or power requirements. Specifically, disclosed are integrated circuit structures that incorporate a silicon germanium film as one or more of the following features: as a local interconnect between devices; as an electrical contact to a device (e.g., a deep trench capacitor, a source/drain region of a transistor, etc.); as both an electrical contact to a deep trench capacitor and a local interconnect between the deep trench capacitor and another device; and as both an electrical contact to a deep trench capacitor and as a local interconnect between the deep trench capacitor and other devices.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: April 2, 2013
    Assignee: International Business Machines Corporation
    Inventor: Steven H. Voldman
  • Patent number: 8299522
    Abstract: A super-junction semiconductor substrate is configured in such a manner that an n-type semiconductor layer of a parallel pn structure is opposed to a boundary region between an active area and a peripheral breakdown-resistant structure area. A high-concentration region is formed at the center between p-type semiconductor layers that are located on both sides of the above n-type semiconductor layer. A region where a source electrode is in contact with a channel layer is formed over the n-type semiconductor layer. A portion where the high-concentration region is in contact with the channel layer functions as a diode. The breakdown voltage of the diode is set lower than that of the device.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: October 30, 2012
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Noriyuki Iwamuro
  • Publication number: 20120256190
    Abstract: In one implementation, a stacked composite device comprises a group IV diode and a group III-V transistor stacked over the group IV diode. A cathode of the group IV diode is in contact with a source of the group III-V transistor, an anode of the group IV diode is coupled to a gate of the group III-V transistor to provide a composite anode on a bottom side of the stacked composite device, and a drain of the group III-V transistor provides a composite cathode on a top side of the stacked composite device.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 11, 2012
    Applicant: INTERNATIONAL RECTIFIER CORPORATION
    Inventors: Tim McDonald, Michael A. Briere
  • Publication number: 20120241820
    Abstract: There are disclosed herein various implementations of semiconductor devices having passive oscillation control. In one exemplary implementation, such a device is implemented to include a III-nitride transistor having a source electrode, a gate electrode and a drain electrode. A damping resistor is configured to provide the passive oscillation control for the III-nitride transistor. In one implementation, the damping resistor includes at least one lumped resistor.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 27, 2012
    Applicant: INTERNATIONAL RECTIFIER CORPORATION
    Inventors: Michael A. Briere, Naresh Thapar
  • Patent number: 8237223
    Abstract: A semiconductor device including a substrate, an epitaxial layer, a first sinker, a transistor, a diode unit, a first buried layer, and a second buried layer is provided. When the semiconductor device is operated at the high voltage, the highly large substrate current due to the external load is avoided through the diode unit disposed in the semiconductor device of an embodiment consistent with the invention. Furthermore, according to the design of the semiconductor device, the issue of the narrow input voltage range is improved, and interference of the semiconductor device with the other semiconductor devices is prevented.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: August 7, 2012
    Assignee: Episil Technologies Inc.
    Inventors: Shih-Kuei Ma, Ta-Chuan Kuo
  • Publication number: 20120146129
    Abstract: A semiconductor device capable of ensuring a withstand voltage of a transistor and reducing a forward voltage of a Schottky barrier diode in a package with the transistor and the Schottky barrier diode formed on chip, and a semiconductor package formed by a resin package covering the semiconductor device are provided. The semiconductor device 1 includes a semiconductor layer 22, a transistor area D formed on the semiconductor layer 22 and constituting the transistor 11, and a diode area C formed on the semiconductor layer 22 and constituting the Schottky barrier diode 10. The semiconductor layer 22 in the diode area C is thinner than the semiconductor layer 22 in the transistor area D.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 14, 2012
    Applicant: ROHM CO., LTD.
    Inventor: Yoshimochi Kenichi
  • Publication number: 20120080769
    Abstract: A semiconductor component and a method for manufacturing the semiconductor component, wherein the semiconductor component includes a transient voltage suppression structure that includes at least two diodes and a Zener diode. In accordance with embodiments, a semiconductor material is provided that includes an epitaxial layer. The at least two diodes and the Zener diode are created at the surface of the epitaxial layer, where the at least two diodes may be adjacent to the Zener diode.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 5, 2012
    Inventors: Umesh Sharma, Harry Yue Gee, Der Min Liou, David D. Marreiro, Sudhama C. Shastri
  • 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: 8129772
    Abstract: Disclosed are integrated circuit structures each having a silicon germanium film incorporated as a local interconnect and/or an electrical contact. These integrated circuit structures provide improved local interconnects between devices and/or increased capacitance to devices without significantly increasing structure surface area or power requirements. Specifically, disclosed are integrated circuit structures that incorporate a silicon germanium film as one or more of the following features: as a local interconnect between devices; as an electrical contact to a device (e.g., a deep trench capacitor, a source/drain region of a transistor, etc.); as both an electrical contact to a deep trench capacitor and a local interconnect between the deep trench capacitor and another device; and as both an electrical contact to a deep trench capacitor and as a local interconnect between the deep trench capacitor and other devices.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: March 6, 2012
    Assignee: International Business Machines Corporation
    Inventor: Steven H. Voldman
  • Publication number: 20120049187
    Abstract: Accompanying the miniaturization of a gate electrode of a trench gate power MOSFET, the curvature of the bottom part of the trench increases, and thereby, electric fields concentrate on the part and deterioration of a gate oxide film (insulating film) occurs. The deterioration of the gate insulating film is more likely to occur when the gate side bias is negative in the case of an N-channel type power MOSFET and when the gate side bias is positive in the case of a P-channel type power MOSFET. The present invention is a semiconductor device including an insulating gate power transistor etc. in a chip, wherein a gate protection element includes a bidirectional Zener diode and the bidirectional Zener diode has a plurality of P-type impurity regions (or a P-type impurity region) having different concentrations so that the withstand voltage with its gate side negatively biased and the withstand voltage with the gate side positively biased are different from each other.
    Type: Application
    Filed: August 27, 2011
    Publication date: March 1, 2012
    Inventors: Masamitsu HARUYAMA, Tatsuhiro Seki, Daisuke Arai
  • Patent number: 8125006
    Abstract: An integrated circuit comprising an array of memory cells and a corresponding production method are described. Each memory cell comprises a resistively switching memory element and a vertical selection diode coupled to a selection line in a selection line trench for selecting one cell from the plurality of memory cells. A selection line is coupled to the vertical selection diode at one vertical sidewall of the selection line trench.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: February 28, 2012
    Assignee: Qimonda AG
    Inventors: Ulrike Gruening-von Schwerin, Peter Baars, Klaus Muemmler, Stefan Tegen, Thomas Happ
  • Patent number: 8106438
    Abstract: The present teachings relate to a method of forming a container capacitor structure on a substrate. In one embodiment, the method comprises etching a recess in the substrate, depositing a first conductive layer on the substrate so as to overlie the substrate and the recess, depositing a filler layer so as to overlie the first conductive layer and fill the recess, and etching the first and second conductive layers so as to define a lower electrode within the recess. The method further comprises forming a cap layer on the lower electrode so as to overlie the first conductive layer and the filler layer and etching at least a portion of the substrate away from the lower electrode to thereby at least partially isolate the lower electrode. Subsequently, the remainder of the capacitor structure may be formed by depositing a dielectric layer on the lower electrode and depositing a second conductive layer on the dielectric layer so as to form an upper electrode.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: January 31, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Guy Blalock, Scott Meikle
  • Publication number: 20110227554
    Abstract: According to one embodiment, a semiconductor device includes a semiconductor layer of a first conductivity type, a base region of a second conductivity type, a diffusion region of the first conductivity type, a control electrode, at least one first semiconductor region of the second conductivity type, a second semiconductor region of the second conductivity type, a first main electrode, and a second main electrode. The base region is selectively provided in a first major surface side of the semiconductor layer. The diffusion region is selectively provided in the base region. The control electrode is provided via an insulating film in a trench being in contact with the diffusion region and penetrating through the base region to the semiconductor layer. The at least one first semiconductor region extends in the semiconductor layer from the first major surface side to a second major surface side of the semiconductor layer and is spaced from the base region.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 22, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yoshitaka HOKOMOTO, Akio Takano
  • Publication number: 20110227135
    Abstract: Improved Schottky diodes with reduced leakage current and improved breakdown voltage are provided by building a JFET with its current path of a first conductivity type serially located between a first terminal comprising a Schottky contact and a second terminal. The current path lies (i) between multiple substantially parallel finger regions of a second, opposite, conductivity type substantially laterally outboard of the Schottky contact, and (ii) partly above a buried region of the second conductivity type that underlies a portion of the current path, which regions are electrically coupled to the first terminal and the Schottky contact and which portion is electrically coupled to the second terminal. When reverse bias is applied to the first terminal and Schottky contact, the current path is substantially pinched off in vertical or horizontal directions or both, thereby reducing the leakage current and improving the breakdown voltage of the device.
    Type: Application
    Filed: June 1, 2011
    Publication date: September 22, 2011
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Xin Lin, Daniel J. Blomberg, Jiang-Kai Zuo
  • Patent number: 8018000
    Abstract: Electrostatic discharge (ESD) protection in high voltage semiconductor devices is disclosed that provides enhanced current isolation between transistor drains or sources by creating an isolation island surrounding the drains or sources. This isolation island can be a higher-doped region within which the drain/source lies. The junction between the higher doping of this island region and the surrounding substrates operates to limit the amount of current that passes through the drain/source. Additionally, oxide features may be used to create an island surrounding the drain/source contact. Again, this isolating effect makes the amount of current passing through the device more uniform, which protects the device from damage due to an ESD event.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: September 13, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shui-Hung Chen, Jian-Hsing Lee, Yung-Tien Tsai, Anthony Oates
  • Publication number: 20110215400
    Abstract: To improve the performance and reliability of semiconductor devices. For the semiconductor chip CP1, power MOSFETs Q1 and Q2 for the switch, a diode DD1 for detecting the heat generation of the power MOSFET Q1, a diode DD2 for detecting the heat generation of the power MOSFET Q2, and plural pad electrodes PD are formed. The power MOSFET Q1 and the diode DD1 are arranged in a first MOSFET region RG1 on the side of a side SD1, and the power MOSFET Q2 and the diode DD2 are arranged in a second MOSFET region RG2 on the side of a side SD2. The diode DD1 is arranged along the side SD1, the diode DD2 is arranged along the side SD2, and all pad electrodes PD other than the pad electrodes PDS1 and PDS2 for the source are arranged along a side SD3 between the diodes DD1 and DD2.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 8, 2011
    Inventors: Hiroyuki NAKAMURA, Atsushi FUJIKI, Tatsuhiro SEKI, Nobuya KOIKE, Yukihiro SATO, Kisho ASHIDA
  • Publication number: 20110163372
    Abstract: A super-junction semiconductor substrate is configured in such a manner that an n-type semiconductor layer of a parallel pn structure is opposed to a boundary region between an active area and a peripheral breakdown-resistant structure area. A high-concentration region is formed at the center between p-type semiconductor layers that are located on both sides of the above n-type semiconductor layer. A region where a source electrode is in contact with a channel layer is formed over the n-type semiconductor layer. A portion where the high-concentration region is in contact with the channel layer functions as a diode. The breakdown voltage of the diode is set lower than that of the device.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Applicant: FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD.
    Inventor: Noriyuki IWAMURO
  • Publication number: 20110156682
    Abstract: A semiconductor device such as a voltage converter includes a circuit stage such as an output stage having a high side device and a low side device which can be formed on a single die (i.e., a “PowerDie”) and connected to each other through a semiconductor substrate, and further includes a Schottky diode integrated with at least one of the low side device and the high side device. Both the high side device and the low side device can include lateral diffused metal oxide semiconductor (LDMOS) transistors. Because both output transistors include the same type of transistors, the two devices can be formed simultaneously, thereby reducing the number of photomasks over other voltage converter designs. The voltage converter can further include a controller circuit on a different die which can be electrically coupled to, and co-packaged with, the PowerDie. Various embodiments of the Schottky diode can provide Schottky protection and, additionally JFET protection for the Schottky device.
    Type: Application
    Filed: October 5, 2010
    Publication date: June 30, 2011
    Inventors: Dev Alok Girdhar, Francois Hebert
  • Patent number: 7964874
    Abstract: A semiconductor display device with an interlayer insulating film in which surface levelness is ensured with a limited film formation time, heat treatment for removing moisture does not take long, and moisture in the interlayer insulating film is prevented from escaping into a film or electrode adjacent to the interlayer insulating film. A TFT is formed and then a nitrogen-containing inorganic insulating film that transmits less moisture compared to organic resin film is formed so as to cover the TFT. Next, organic resin including photosensitive acrylic resin is applied and an opening is formed by partially exposing the organic resin film to light. The organic resin film where the opening is formed, is then covered with a nitrogen-containing inorganic insulating film which transmits less moisture than organic resin film does.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: June 21, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Satoshi Murakami, Masahiko Hayakawa, Kiyoshi Kato, Mitsuaki Osame, Takashi Hirosue, Saishi Fujikawa
  • Patent number: 7923783
    Abstract: A semiconductor memory device according to an embodiment of the present invention includes a resistance element which is constructed with a first conductor which extends in a first direction and is connected to a first contact; a second conductor which extends in said first direction and is connected to a second contact; and a first insulation film which exists between said first conductor and said second conductor, said first insulation film also having an opening in which a third conductor which connects said first conductor and said second conductor is arranged.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: April 12, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takumi Abe
  • Patent number: 7893458
    Abstract: A semiconductor device includes: a semiconductor substrate; a lateral MOS transistor disposed in the substrate; a Zener diode disposed in the substrate; and a capacitor disposed in the substrate. The transistor includes a drain and a gate, and the diode and the capacitor are coupled in series between the drain and the gate. This device has minimized dimensions and high switching speed. Further, both of a switching loss and a surge voltage are improved.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: February 22, 2011
    Assignee: DENSO CORPORATION
    Inventors: Shigeki Takahashi, Takashi Nakano, Nozomu Akagi, Yasushi Higuchi, Tetsuo Fujii, Yoshiyuki Hattori, Makoto Kuwahara, Kyoko Okada
  • Patent number: 7880223
    Abstract: A method for manufacturing a transient voltage suppressing (TVS) array substantially following a manufacturing process for manufacturing a vertical semiconductor power device. The method includes a step of opening a plurality of isolation trenches in an epitaxial layer of a first conductivity type in a semiconductor substrate followed by applying a body mask for doping a body region having a second conductivity type between two of the isolation trenches. The method further includes a step of applying an source mask for implanting a plurality of doped regions of the first conductivity type constituting a plurality of diodes wherein the isolation trenches isolating and preventing parasitic PNP or NPN transistor due to a latch-up between the doped regions of different conductivity types.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 1, 2011
    Assignee: Alpha & Omega Semiconductor, Ltd.
    Inventor: Madhur Bobde
  • Patent number: 7858468
    Abstract: A method includes forming an electrical insulator material over an integrated circuit having a metal-containing conductive interconnect and activating a dopant in a semiconductor material of a substrate to provide a doped region. The doped region provides a junction of opposite conductivity types. After activating the dopant, the substrate is bonded to the insulator material and at least some of the substrate is removed where bonded to the insulator material. After the removing, a memory cell is formed having a word line, an access diode, a state-changeable memory element containing chalcogenide phase change material, and a bit line all electrically connected in series, the access diode containing the junction as a p-n junction. A memory device includes an adhesion material over the insulator material and bonding the word line to the insulator material.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: December 28, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Jun Liu, Gurtej S. Sandhu
  • Patent number: 7834428
    Abstract: Apparatus and a method are provided for reducing noise in mixed-signal and digital circuits. One apparatus (200) includes a metal-oxide-semiconductor field-effect transistor (MOSFET) (210). MOSFET (210) includes a doped substrate (2210) with a source formed proximate a substrate tie (2224) and a substrate tie (2250) adjacent substrate (2210). A ground rail (255) is coupled to the source and substrate tie (2224), and a ground rail (285) is coupled to substrate tie (2250). Ground rails (255) and (285) are configured to be coupled to different ground networks (250 and 280). One method includes producing a model of a semiconductor device including a standard semiconductor cell (710). The semiconductor cell is identified as a noise-sensitive or a noise-producing semiconductor cell (720), and the semiconductor cell is replaced with a corresponding noise-aware semiconductor cell (730).
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: November 16, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Radu M. Secareanu, Olin L. Hartin, Emre Salman
  • Patent number: 7795070
    Abstract: Provided is a method for manufacturing a semiconductor device. The method for manufacturing the semiconductor device, without limitation, includes forming a first semiconductor layer over a substrate, and forming a second semiconductor layer over the first semiconductor layer, wherein an amorphous nitrided silicon adhesion layer is located between and adheres the first and second semiconductor layers.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: September 14, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Maria Wang, Erika Leigh Shoemaker, Mary Roby, Stuart Jacobsen
  • Patent number: 7705388
    Abstract: A nonvolatile semiconductor memory device includes: a source-line-side diode an anode region that is connected to a source line; a bit-line-side diode a cathode region that is connected to a bit line; and memory cell string connected between a cathode region of the source-line-side diode and an anode region of the bit-line-side diode. The memory cell string includes a series connection of a plurality of memory cell transistors. The source-line-side diode is formed in a contact for connecting the source line and the memory cell string in a first direction perpendicular to a semiconductor substrate. The bit-line-side diode is formed in a contact for connecting the bit line and the memory cell string in the first direction.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: April 27, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yoshihisa Iwata
  • Patent number: 7608880
    Abstract: A semiconductor memory device comprises a cell region including a plurality of unit memory cells, and a peripheral circuit region, the peripheral circuit region including a plurality of peripheral circuit devices for operating the plurality of memory cells and at least one operating capacitor formed adjacent to at least one peripheral circuit device at a pseudo circuit pattern region.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: October 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bo-Tak Lim, Su-Yeon Kim, Jong-Pil Son, Gong-Heum Han
  • Patent number: 7563653
    Abstract: An electrostatic discharge (ESD) protection device includes a diode located in a substrate and an N-type metal oxide semiconductor (NMOS) device located in the substrate adjacent the diode, wherein both the diode and the NMOS are coupled to an input device, and at least a portion of the diode and at least a portion of the NMOS device collectively form an ESD protection device.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: July 21, 2009
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Jian-Hsing Lee, Deng-Shun Chang
  • Publication number: 20090179270
    Abstract: Electrostatic discharge (ESD) protection in high voltage semiconductor devices is disclosed that provides enhanced current isolation between transistor drains or sources by creating an isolation island surrounding the drains or sources. This isolation island can be a higher-doped region within which the drain/source lies. The junction between the higher doping of this island region and the surrounding substrates operates to limit the amount of current that passes through the drain/source. Additionally, oxide features may be used to create an island surrounding the drain/source contact. Again, this isolating effect makes the amount of current passing through the device more uniform, which protects the device from damage due to an ESD event.
    Type: Application
    Filed: March 11, 2008
    Publication date: July 16, 2009
    Inventors: Shui-Hung Chen, Jian-Hsing Lee, Yung-Tien Tsai, Anthony Oates
  • Patent number: 7535035
    Abstract: A cross-point nonvolatile memory device using a binary metal oxide layer as a data storage material layer includes spaced apart doped lines disposed in a substrate. Spaced apart upper electrodes cross over the doped lines such that cross points are formed where the upper electrodes overlap the doped lines. Lower electrodes are disposed at the cross points between the doped lines and the upper electrodes. A binary metal oxide layer is provided between the upper electrodes and the lower electrodes and provided as a data storage material layer. Doped regions are provided between the lower electrodes and the doped lines and form diodes together with the doped lines. The doped regions have an opposite polarity to the doped lines.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: May 19, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Gyu Baek, Moon-Sook Lee
  • Publication number: 20090101938
    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: Application
    Filed: December 29, 2008
    Publication date: April 23, 2009
    Applicants: SARNOFF CORPORATION, SARNOFF EUROPE
    Inventors: Pieter Vanysacker, Benjamin Van Camp, Olivier Marichal, Wybo Geert, Steven Thijs, Gerd Vermont
  • Patent number: 7459754
    Abstract: Provided is a semiconductor device in which a resistor and a capacitor are inserted in an input/output signal line that connects an input/output pad and an internal circuit at an input/output terminal in order to prevent damage of the internal circuit due to static electricity. The semiconductor device includes the input/output signal line that connects the input/output pad and the internal circuit. A first electrostatic discharge (ESD) protection circuit is branched from the input/output pad and connected to a power supply line, and a second ESD protection circuit is branched from the input/output pad and connected to a ground line. The resistor is located in the input/output signal line, and the capacitor is branched from the power supply line between the power supply line and the resistor.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: December 2, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seung-won Kang
  • Patent number: 7385252
    Abstract: An electrostatic discharge (ESD) protection device includes a diode located in a substrate and an N-type metal oxide semiconductor (NMOS) device located in the substrate adjacent the diode, wherein both the diode and the NMOS are coupled to an input device, and at least a portion of the diode and at least a portion of the NMOS device collectively form an ESD protection device.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: June 10, 2008
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jian-Hsing Lee, Deng-Shun Chang
  • Patent number: 7345340
    Abstract: A semiconductor integrated circuit that has a quick response to changes in source/drain electrode voltage having an LDMOS transistor. The transistor has a second conduction type first well region formed in a first conduction type semiconductor substrate; a first conduction type second well region formed in the first well region; a second conduction type third well region formed in the second well region; a drain region formed in the second well region; a source region formed in the third well region; a gate electrode formed through a gate insulating film over the third well region between the drain region and the source region; and an insulating layer formed between the gate electrode and the drain region. Parasitic capacitances between the semiconductor substrate and the source region and those between the substrate and the drain region are respectively in series.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: March 18, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Mitsuharu Hitani, Toshio Nagasawa, Akihiro Tamura
  • Patent number: 7342281
    Abstract: Provided is an electrostatic discharge (ESD) protection circuit using a silicon controlled rectifier (SCR), which is applied to a semiconductor integrated circuit (IC). A semiconductor substrate has a triple well structure such that a bias is applied to a p-well corresponding to a substrate of a ggNMOS device. Thus, a trigger voltage of the SCR is reduced. In addition, two discharge paths are formed using two SCRs including PNP and NPN bipolar transistors. As a result, the ESD protection circuit can have greater discharge capacity.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: March 11, 2008
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwi Dong Kim, Chong Ki Kwon, Jong Dae Kim
  • Patent number: 7256498
    Abstract: Semiconductor devices and methods for fabricating the same. The semiconductor device includes a resistance-reduced transistor with metallized bilayer overlying source/drain regions and gate electrode thereof. A first dielectric layer with a conductive contact overlies the resistance-reduced transistor. A second dielectric layer having a first conductive feature overlies the first dielectric layer. A third dielectric layer with a second conductive feature overlies the second dielectric layer, forming a conductive pathway down to the top surface of the metallized bilayer over one of the source/drain regions or the gate electrode layer.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: August 14, 2007
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yi-Chun Huang, Jyu-Horng Shieh, Ju-Wang Hsu