Patents Examined by Jesse Fenty
  • Patent number: 6768155
    Abstract: Semiconductor devices having trenches with buried straps therein preventing lateral out-diffusion of dopant are provided along with methods of fabricating such semiconductor devices.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: July 27, 2004
    Assignee: Infineon Technologies AG
    Inventors: Venkatachalam C. JaiPrakash, Rajiv Ranade
  • Patent number: 6768185
    Abstract: The present invention is directed to novel antifuse arrays and their methods of fabrication. According to an embodiment of the present invention an array comprises a plurality of first spaced apart rail-stacks having a top semiconductor material. A fill dielectric is located between the first plurality of spaced apart rail-stacks wherein the fill dielectric extends above the top surface of the semiconductor material. An antifuse material is formed on the top of the semiconductor material of the first plurality of spaced apart rail-stacks. A second plurality of spaced apart rail-stacks having a lower semiconductor material is formed on the antifuse material. In the second embodiment of the present invention the array comprises a first plurality of spaced apart rail-stacks having a top semiconductor material. A fill dielectric is located between the first plurality of spaced apart rail-stacks wherein the fill dielectric is recessed below the top surface of the semiconductor material.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: July 27, 2004
    Assignee: Matrix Semiconductor, Inc.
    Inventors: James M. Cleeves, Michael A. Vyvoda, N. Johan Knall
  • Patent number: 6765257
    Abstract: In FLASH EPROM cells, source diffusion continuity between horizontal and vertical source lines is provided by an arsenic implant under the stack in vertical source lines.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: July 20, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Freidoon Mehrad, Kyle A. Picone
  • Patent number: 6750527
    Abstract: A semiconductor device comprises a semiconductor substrate of a first conductivity type, at least one first well of a second conductivity type formed in the semiconductor substrate, and at least one second well of the first conductivity type formed in at least one first well. The semiconductor device is composed of semiconductor circuits each formed in at least one first well and at least one second well.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: June 15, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tomomi Momohara
  • Patent number: 6747319
    Abstract: A semiconductor device including multiple high-voltage drive transistors in its output section is improved in electrostatic withstand voltage by connecting electrostatic protection transistors in parallel with the high-voltage drive transistors connected to the output pads. The drain withstand voltage of the electrostatic protection transistors is made lower than the drain withstand voltage of the high-voltage drive transistors. In addition, the channel length of electrostatic protection transistors is made short to enable efficient bipolar operation of the electrostatic protection transistors.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: June 8, 2004
    Assignee: Seiko Instruments Inc.
    Inventors: Yoshikazu Kojima, Kazutoshi Ishii, Masaaki Kamiya, Yasuhiro Moya
  • Patent number: 6744115
    Abstract: A semiconductor device comprising: a first insulating film formed on a semiconductor substrate; a semiconductor layer at least a part of which is formed on the first insulating film; a second insulating film comprising a non-doped silicon oxide film and formed on the semiconductor layer; a third insulating film comprising a silicon oxide film containing at least phosphorus formed on the second insulating film; and a fourth insulating film comprising a non-doped silicon oxide film formed on the third insulating film.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: June 1, 2004
    Assignee: Sony Corporation
    Inventor: Yuji Sasaki
  • Patent number: 6740953
    Abstract: The present invention has an object to provide a high frequency integrated device which can obtain sufficient isolation even in a high frequency region of which handling frequency exceeds gigahertz[GHz]. In a semiconductor device having an element isolation structure obtained by trench isolation, in which an insulator fills the inside of a trench formed in a semiconductor substrate, the insulator filling the trench includes a conductive material region, and the conductive material region is grounded through coupling at high frequency. With this configuration, electromagnetic waves coupled to the conductive material inside the trench are propagated to ground, thereby preventing high-frequency interference with other regions.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: May 25, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Mitsuru Tanabe
  • Patent number: 6737727
    Abstract: An apparatus and method is described incorporating one or more layers of SiCOH and one or more layers of patterned conductors in an integrated circuit chip. The invention overcomes the problem of capacitance by lowering the k of the delectric and overcomes the problem of breakdown voltage and the leakage curent by tailoring the composition of SiCOH.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: May 18, 2004
    Assignee: International Business Machines Corporation
    Inventors: Stephen McConnell Gates, Alfred Grill
  • Patent number: 6734455
    Abstract: A method for fabricating chalcogenide materials on substrates, which reduces and/or eliminates agglomeration of materials on the chalcogenide materials; and system and devices for performing the method, semiconductor devices so produced, and machine readable media containing the method. One method disclosed includes forming a first layer, forming a second layer on the first layer, forming a third layer on the second layer, wherein the third layer is essentially transparent to irradiation, and irradiating the second layer through the third layer to cause the second layer to diffuse into the first layer thereby creating an integral layer of materials from the first and second layers.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: May 11, 2004
    Assignee: Micron Technology, Inc.
    Inventor: Jiutao Li
  • Patent number: 6734500
    Abstract: A semiconductor device 1000 may include an element isolation region 14, an n-type field effect transistor 100 and an npn-type bipolar transistor 200 formed on a SOI substrate 10. A p-type body region 50a may be electrically connected to an n-type source region 120. The p-type body region 50a may be electrically connected to a p-type base region 220. An n-type drain region 130 may be electrically connected to an n-type collector region 230. An n-type source region 120 may be formed structurally isolated from an n-type emitter region 210.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: May 11, 2004
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Ebina
  • Patent number: 6734498
    Abstract: In one embodiment, the invention includes a field effect transistor having a substrate, a source, and a drain. An electric field terminal region is lower than the source and drain and is in the substrate. A body is above the electric field terminal region between the source and drain. In another embodiment, the invention includes a field effect transistor having an insulator layer and a body above the insulator layer between a source and a drain. A substrate is below the insulator layer. A gate is above the body and between the source and drain. An electric field terminal region is included in the substrate. The body may be undoped and the threshold voltage be set by setting the distance between the insulator layer and a gate insulator. The body, substrate, and electric field terminal region may float or one or more of them may be biased.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: May 11, 2004
    Assignee: Intel Corporation
    Inventors: Ali Keshavarzi, Vivek K. De, Siva G. Narendra
  • Patent number: 6734475
    Abstract: P type well regions 31 and 32 are formed in N type well regions 21 and 22 respectively. The N type well regions 21 and 22 are formed separately each other. Charge transfer MOS transistors M2 and M3 are formed in the P type well regions 31 and 32 respectively. Thus, parasitic thyristor causing latch-up is nor formed.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: May 11, 2004
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takao Myono, Akira Uemoto
  • Patent number: 6730932
    Abstract: A semiconductor device includes TFTs designed in accordance with characteristics of circuits. In a first structure of the invention, the TFT is formed by using a crystalline silicon film made of a unique crystal structure body. The crystal structure body has a structure in which rod-like or flattened rod-like crystals grow in a direction parallel to each other. In a second structure of the invention, growth distances of lateral growth regions are made different from each other in accordance with channel lengths of the TFTs. By this, characteristics of TFTs formed in one lateral growth region can be made as uniform as possible.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: May 4, 2004
    Assignee: Semiconductor Energy Laboratory, Co. Ltd.
    Inventors: Shunpei Yamazaki, Hisashi Ohtani
  • Patent number: 6730948
    Abstract: A semiconductor device includes at least a ferroelectric or high-dielectric-constant film and a surface coating that have been stacked in this order over a substrate. The surface coating is made of an acrylic resin.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: May 4, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuo Umeda, Keiichi Matsunaga
  • Patent number: 6717233
    Abstract: A method for fabricating resistors within a semiconductor integrated circuit device is disclosed. A resistor is fabricated by first depositing a passivation layer on a semiconductor substrate having multiple transistors previously formed thereon. Next, a first contact window and a second contact window are formed through the first passivation layer at a first contact location and a second contact location, respectively. The first and second contact windows are then filled with metal, such as tungsten, and the metal at the first and second contact windows is planarized to form a first bottom contact and a second bottom contact, respectively. A resistive film, such as polysilicon, subsequently deposited over the first passivation layer. Next, a second passivation layer is formed over the resistive film. Finally, a first top contact and a second top contact are formed to respectively connect the first bottom contact and the second bottom contact to the resistive film.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: April 6, 2004
    Assignee: BAE Systems Information and Electronic Systems Integration, Inc.
    Inventors: Nadim Haddad, Charles N. Alcorn, Jonathan Maimon, Leonard R. Rockett, Scott Doyle
  • Patent number: 6707063
    Abstract: A process of fabricating a molecular electronic device that preserves the integrity of the active molecular layer of the electronic device during processing is described. In one aspect, a passivation layer is provided to protect a molecular layer from degradation during patterning of the top wire layer. A molecular electronic device structure and a memory system that are formed from this fabrication process are described.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: March 16, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Yong Chen
  • Patent number: 6703647
    Abstract: A high gain phototransistor uses lateral and vertical transistor structures and a triple base. The base regions of two vertical structures are in the bulk of a semiconductor substrate while the base of a single lateral structure is adjacent a light receiving phototransistor surface. Minority carrier generation extends from the base region of the lateral transistor to the base regions of the vertical transistors and is present in the vertical regions within a diffusion length of the optically generated carriers of the lateral base. The bases of all three transistor structures are electrically connected. The collector electrodes of one of the vertical structures and the lateral structure are electrically connected, while the emitter electrodes of the other of the vertical structures and the lateral structures are electrically connected. Finally, the remaining vertical collector and emitter electrodes are electrically connected via a buried layer adjacent the phototransistor wafer substrate.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: March 9, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Graham A. Garcia, George P. Imthurn
  • Patent number: 6703686
    Abstract: An n-type low impurity concentration semiconductor layer is provided, by epitaxial growth or the like, on a p-type semiconductor substrate. In order to vertically form a semiconductor device in the low impurity concentration semiconductor layer, at least a p-type diffusion region is provided. In a surface of the semiconductor layer, a collector electrode and a base electrode are respectively formed in electrical connection to the n-type low impurity concentration semiconductor layer and the p-type diffusion region. The collector electrode is formed on a surface of the n+-type low resistance region of a polycrystal semiconductor formed depthwise in the low impurity concentration semiconductor layer.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: March 9, 2004
    Assignee: Rohm Co., Ltd.
    Inventors: Takahiko Konishi, Masahiko Takeno
  • Patent number: 6700145
    Abstract: A capacitor structure characterized by improved capacitance as a result of increasing the capacitance associated with charge spreading that occurs within the electrodes of the capacitor. The electrodes are formed of superconducting or high-dielectric constant conductor materials, and are preferably used in combination with high-dielectric constant insulator materials. The capacitor structures are particularly suited as thin-film capacitors of the type used for high-density applications such as DRAM.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 2, 2004
    Assignee: International Business Machines Corporation
    Inventors: Charles T. Black, Jeffrey J. Welser
  • Patent number: 6700155
    Abstract: A device and method uses charge trapping to configure and adjust a threshold voltage (Vt) for a field effect transistor (FET). The charge trapping mechanism can be controlled by bias voltages applied to the FET, so that rapid/dynamic changes can be made to Vt without the use of conventional program/erase cycles. The threshold voltage can thus be set as a function of applied operating voltages.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: March 2, 2004
    Assignee: Progressent Technologies, Inc.
    Inventors: Tsu-Jae King, David K. Y. Liu