Patents Examined by Doug Menz
  • Patent number: 7187077
    Abstract: The present invention relates to a lid for an integrated circuit. According to one embodiment, an integrated circuit having a lid comprises a substrate having a flat surface and extending a first length and a lid having a recess and a foot portion. The lid generally has a second length shorter than the first length, and is positioned on the flat surface of the substrate. Finally, a bonding agent is positioned on the flat surface adjacent the foot portion of the lid. According to an alternate embodiment, a second component is positioned on the substrate outside the foot portion, and an adhesive seal is positioned on the substrate adjacent the foot and covering the component. A method of securing a lid to an integrated circuit is also disclosed.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: March 6, 2007
    Assignee: Xilinx, Inc.
    Inventor: Kumar Nagarajan
  • Patent number: 7183155
    Abstract: The present invention provides a non-volatile memory device and fabricating method thereof, by which a cell size can be lowered despite high degree of cell integration and by which the device fabrication is facilitated. The present invention includes at least two trench isolation layers arranged in a device isolation area of a semiconductor substrate, each having a first depth, a first conductive type well arranged between the at least two trench isolation layers to have a second depth smaller than the first depth, a second conductive type source region and a second conductive type drain region arranged in a prescribed upper part of the first conductive type well to be separated from each other by a channel region in-between, an ONO layer on the channel region of the semiconductor substrate, the ONO layer comprising a lower oxide layer, a nitride layer, and an upper oxide layer, and a wordline conductor layer on the ONO layer.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: February 27, 2007
    Assignee: Dongbu Electronics Co., Ltd.
    Inventors: Sung Mun Jung, Jum Soo Kim
  • Patent number: 7180188
    Abstract: A contact structure includes a lower conductive pattern disposed on a predetermined region of a semiconductor substrate. The lower conductive layer has a concave region at a predetermined region of a top surface thereof. An embedding conductive layer fills the concave region. The top surface of the embedding conductive layer is placed at least as high as the height of the flat top surface of the lower conductive pattern. A mold layer is disposed to cover the semiconductor substrate, the lower conductive pattern and the embedding conductive layer. An upper conductive pattern is arranged in an intaglio pattern. The intaglio pattern is disposed in the mold layer to expose a predetermined region of the embedding conductive layer.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: February 20, 2007
    Assignee: Samsung Electronics, Oo., ltd.
    Inventors: Jung-Hwan Oh, Byung-Lyul Park, Hong-Seong Son
  • Patent number: 7180098
    Abstract: The present invention is generally directed to an optical isolator device, and various methods of making same. In one illustrative embodiment, the method comprises obtaining a single SOI substrate, the SOI substrate having an active layer comprised of silicon and a buried insulation layer, forming a doped layer of silicon above the active layer of the SOI substrate, forming first and second isolated regions in at least the doped layer of silicon, forming a photon generating device in the first isolated region, and forming a photon receiving device in the second isolated region.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: February 20, 2007
    Assignee: Legerity, Inc.
    Inventors: Chris Speyer, William E. Moore
  • Patent number: 7180119
    Abstract: The capacitor according to the present invention comprises a lower electrode 18 formed on a base substrate 14, a dielectric film 20 formed on the lower electrode 18, and an upper electrode 28 formed on the dielectric film 20 and including a polycrystalline conduction film 22, and a amorphous conduction film 24 formed on the polycrystalline conduction film 22. Because of the amorphous conduction film 24 included in the upper electrode 28, which can shut off hydrogen and water, hydrogen and water can be prohibited from arriving at the dielectric film 20. Accordingly, the dielectric film 20 of an oxide is prevented from being reduced with hydrogen, and the capacitor can have good electric characteristics.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: February 20, 2007
    Assignee: Fujitsu Limited
    Inventors: John David Baniecki, Takeshi Shioga, Kazuaki Kurihara
  • Patent number: 7180184
    Abstract: A conductive bump is formed on a semiconductor chip having a pad-mounting surface which is provided with at least a bonding pad thereon. The conductive bump includes a first metal layer formed on the bonding pad, a conductive paste body formed on the first metal layer, and a second metal layer formed on the paste body such that the paste body is sandwiched between the first and second metal layers.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: February 20, 2007
    Inventor: Yu-Nung Shen
  • Patent number: 7176562
    Abstract: A semiconductor wafer includes a semiconductor substrate having a plurality of integrated circuits and electrical interconnections electrically connected to each of the integrated circuits. The semiconductor substrate includes bonding pads formed on a surface of the semiconductor substrate. Each of the bonding pads is part of a corresponding electrical interconnection. First resin layers are each disposed on each of a plurality of areas on the semiconductor substrate and have ridged edges. Wirings are each disposed over a corresponding bonding pad and a corresponding first resin layer and are electrically connected to the corresponding bonding pad. External connection terminals are each disposed on a corresponding wiring and are electrically connected to the corresponding wiring.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: February 13, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Takayoshi Obinata
  • Patent number: 7145195
    Abstract: A semiconductor device comprises a semiconductor substrate including an isolation region defining an active area with a plurality of source/drain regions. A contact pad layer is formed on the semiconductor substrate and includes gate line structures, first contact pads connected to parts of the source/drain regions, second contact pads connected to the other source/drain regions. A first interlevel dielectric layer covers the gate line structures and the first and second contact pads. A bit line contact plug layer is formed on the contact pad layer and includes lower storage node contact plugs connected to the first contact pads, bit line contact plugs connected to the second contact pads. A protective layer pattern is formed on the second contact pads to prevent the second contact pads from being connected to the lower storage node contact plugs and/or upper storage node contact plugs.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: December 5, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Min Park, Yoo-Sang Hwang
  • Patent number: 7045848
    Abstract: The memory cell transistor includes, in a first well region, a pair of memory electrodes, one of which serves as source electrode and the other serves as a drain electrode and a channel region interposed between the pair of memory electrodes. There is, on a channel region, a first gate electrode disposed near its corresponding memory electrode with an insulating film interposed therebetween, and a second gate electrode disposed through insulating films and a charge storage region and electrically isolated from the first gate electrode. A first negative voltage is applied to the first well region to form a state of a reverse bias greater than or equal to a junction withstand voltage between the second gate electrode and the memory electrode near the second gate electrode, thereby enabling injection of hot electrons into the charge storage region and injection of electrons from the well region to the charge storage region.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: May 16, 2006
    Assignee: Renesas Technology Corp.
    Inventor: Shoji Shukuri
  • Patent number: 6979851
    Abstract: A structure and method is disclosed herein for a vertical transistor DRAM cell having a low leakage buried strap outdiffusion conductively connecting a storage capacitor in a lower portion of a trench to a vertical transistor thereabove. In the disclosed structure and method, the buried strap outdiffusion (BSOD) extends along a portion of the isolation collar having reduced thickness, the reduced thickness being substantially less than the thickness of the isolation collar otherwise. In a particular embodiment, a self-aligned lightly doped drain (LDD) extension is formed, extending between the BSOD and the vertical transistor above the LDD.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: December 27, 2005
    Assignee: International Business Machines Corporation
    Inventors: Dureseti Chidambarrao, Jack Allan Mandelman, Carl John Radens
  • Patent number: 6975024
    Abstract: In a manufacturing method of a hybrid integrated circuit device of the invention, transfer molding is carried put by positioning a curved surface formed in a back surface of the substrate on a lower mold die side and a burr formed in a main surface of the substrate on an upper mold die side. This utilizes the curved surface to inject thermosetting resin in an arrow direction to pour the thermosetting resin through a below of the substrate. There are no broken fragments of burr in a thermosetting resin at the below of the substrate. As a result, a required minimum resin thickness is secured at the below of the substrate, thus realizing a hybrid integrated circuit device having a high voltage resistance, an excellent heat dissipation property and a high product quality.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: December 13, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasuhiro Koike, Hidefumi Saito, Katsumi Okawa, Junichi Iimura
  • Patent number: 6949769
    Abstract: A MOSFET has greatly reduced leakage current between the gate electrode and the channel, source and drain regions. The gate electrode materials have lower electron affinities than the channel, source and drain regions. Gate electrode materials with negative electron affinities can also be used. The use of these gate electrode materials enables the band structures of the gate electrode and the other regions to be aligned in a manner that eliminates tunneling states for carriers tunneling between the gate and the body of the device.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: September 27, 2005
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chenming Hu, Yee-Chia Yeo
  • Patent number: 6933548
    Abstract: A negative differential resistance device is disclosed which is particularly suited as a replacement in memory cells for conventional pull-up and load elements such as NDR diodes, passive resistors, and conventional FETs. The NDR device includes a charge trapping layer formed at or extremely near to an interface between a substrate (which can be silicon or SOI) and a gate insulation layer. The NDR device can be shut off during static operations to further reduce power dissipation.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: August 23, 2005
    Assignee: Synopsys, Inc.
    Inventor: Tsu-Jae King
  • Patent number: 6924501
    Abstract: A quantum logic gate utilizes an inter-polarization (dipole-dipole) interaction between excitons having polarization in semiconductor quantum well structures, or a spin exchange interaction between spin polarized excitons in the semiconductor quantum well structures. Problems associated with conventional semiconductor quantum well structures are solved in that a phase relaxation time is very short because of using inter-subband electrons, and that there is no usable ultrashort optical pulse laser technology because a subband transition wavelength is in a far-infrared region and hence ultra fast control is impossible.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: August 2, 2005
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Kazuhiro Komori
  • Patent number: 6914289
    Abstract: An integrated circuit having a non-volatile HGRAM cell includes a first section having impurity materials implanted into a substrate to form NPN transistor regions and a second section having a gate structure to control the currents conducted in the NPN transistor regions. The gate structure is formed at least above the P-type channel region of the substrate and includes an hourglass shaped material with gates to control the movement of holes through the restricted portion of the hourglass.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: July 5, 2005
    Assignee: Intel Corporation
    Inventor: Kevin W. Bross
  • Patent number: 6897467
    Abstract: An ovonic phase-change semiconductor memory device having a reduced area of contact between electrodes of chalcogenide memories, and methods of forming the same, are disclosed. Such memory devices are formed by forming a tip protruding from a lower surface of a lower electrode element. An insulative material is applied over the lower electrode such that an upper surface of the tip is exposed. A chalcogenide material and an upper electrode are either formed atop the tip, or the tip is etched into the insulative material and the chalcogenide material and upper electrode are deposited within the recess. This allows the memory cells to be made smaller and allows the overall power requirements for the memory cell to be minimized.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: May 24, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Trung T. Doan, D. Mark Durcan, Brent D. Gilgen
  • Patent number: 6885031
    Abstract: A method of forming a single crystal semiconductor film on a non-crystalline surface is described. In accordance with this method, a template layer incorporating an ordered array of nucleation sites is deposited on the non-crystalline surface, and the single crystal semiconductor film is formed on the non-crystalline surface from the ordered array of nucleation sites. An integrated circuit incorporating one or more single crystal semiconductor layers formed by this method also is described.
    Type: Grant
    Filed: August 9, 2003
    Date of Patent: April 26, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Theodore I. Kamins
  • Patent number: 6864104
    Abstract: A silicon-on-insulator (SOI) memory device (such as an SRAM) using negative differential resistance (NDR) elements is disclosed. Body effect performances for NDR FETs (and other FETs) that may be used in such device are enhanced by floating a body of some/all the NDR FETs.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: March 8, 2005
    Assignee: Progressant Technologies, Inc.
    Inventor: Tsu-Jae King
  • Patent number: 6861707
    Abstract: An active negative differential resistance element (an NDR FET) and a memory device (such as an SRAM) using such elements is disclosed Soft error rate (SER) performance for NDR FETs and such memory devices are enhanced by adjusting a location of charge traps in a charge trapping layer that is responsible for effectuating an NDR behavior. Both an SER and a switching speed performance characteristic can be tailored by suitable placement of the charge traps.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: March 1, 2005
    Assignee: Progressant Technologies, Inc.
    Inventor: Tsu-Jae King
  • Patent number: 6844578
    Abstract: In a semiconductor integrated circuit device in which the number of the PMOS transistors to be used is relatively larger than that of the NMOS transistors and the PMOS transistor is used as an output driver, there is provided a semiconductor integrated circuit device having excellent stability, reliability, and performance while being inexpensive, and a manufacturing method thereof. In such a semiconductor integrated circuit device, complementary MOS circuits are composed of a P-type MOSFET (36) and an N-type MOSFET (37) which are a horizontal, an output driver is composed of a P-type vertical MOSFET (38) having a trench structure, and a conductivity type of the gate electrode of the respective MOSFETs is set as a P-type.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: January 18, 2005
    Assignee: Seiko Instruments Inc.
    Inventors: Hirofumi Harada, Jun Osanai