Unipolar Device (epo) Patents (Class 257/E29.226)

  • Publication number: 20090189461
    Abstract: An integrated circuit includes a first transistor having a first gate and a first source and a second transistor having a second gate and a second source. The integrated circuit includes a first source contact adjacent the second transistor and coupled to the first source and the second source. The integrated circuit includes a first bond wire coupled to the first source contact.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 30, 2009
    Applicant: Infineon Technologies AG
    Inventors: Donald Dibra, Christoph Kadow
  • Patent number: 7564099
    Abstract: A Schottky diode is integrated into a planar or trench topology MOSFET having parallel spaced source regions diffused into spaced base stripes. The diffusions forming the source and base stripes are interrupted to permit the drift region to extend to the top of the die and receive a Schottky barrier metal and the source contact. The MOSFET and Schottky share the same drift region, and the pitch between base and source stripes is not changed to receive the Schottky structure.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: July 21, 2009
    Assignee: International Rectifier Corporation
    Inventors: Donald He, Daniel M. Kinzer
  • Publication number: 20090159975
    Abstract: An apparatus including a first diffusion formed on a substrate, the first diffusion including a pair of channels, each of which separates a source from a drain; a second diffusion formed on the substrate, the second diffusion including a channel that separates a source from a drain; a first gate electrode formed on the substrate, wherein the first gate electrode overlaps one of the pair of channels on the first diffusion to form a pass-gate transistor; and a second gate electrode formed on the substrate, wherein the second gate electrode overlaps one of the pair of channels of the first diffusion to form a pull-down transistor and overlaps the channel of the second diffusion to form a pull-up transistor, and wherein the pass-gate, pull-down and pull-up transistors are of at least two different constructions. Other embodiments are disclosed and claimed.
    Type: Application
    Filed: January 29, 2009
    Publication date: June 25, 2009
    Applicant: INTEL CORPORATION
    Inventor: Peter L.D. Chang
  • Publication number: 20090159931
    Abstract: Provided are embodiments of a semiconductor device having bit lines and bit bar lines. The bit lines and the bit bar lines are arranged in alternate succession across a substrate. At least two of proximate bit lines, bit line bars, power lines, and ground lines of the semiconductor device are formed on different layers, in order to reduce defects due to particles between lines, and increase yield.
    Type: Application
    Filed: October 2, 2008
    Publication date: June 25, 2009
    Inventor: Jin Ho Park
  • Publication number: 20090140341
    Abstract: Independent n-tips for multi-gate transistors are generally described. In one example, an apparatus includes a semiconductor fin, one or more multi-gate pull down (PD) devices coupled with the semiconductor fin, the one or more PD devices having an n-tip dopant concentration in the semiconductor fin material adjacent to the one or more PD devices, and one or more multi-gate pass gate (PG) devices coupled with the semiconductor fin, the one or more PG devices having an n-tip dopant concentration in the semiconductor fin material adjacent to the one or more PG devices, wherein the n-tip dopant concentration for the PG device is lower than the n-tip dopant concentration for the PD device.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventors: Ravi Pillarisetty, Suman Datta, Jack T. Kavalieros, Brian S. Doyle
  • Patent number: 7531881
    Abstract: A semiconductor device has two transistors of different structure from each other. One of transistors is P-type and the other is N-type. One of the transistors includes a gate structure in which a polysilicon layer contacts a gate insulation film while the other transistor includes a gate structure in which a metal layer contacts a gate insulation film.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: May 12, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye-Lan Lee, Yu-Gyun Shin, Sang-Bom Kang, Hag-Ju Cho, Seong-Geon Park, Taek-Soo Jeon
  • Publication number: 20090114994
    Abstract: An architecture of the layout of the MTCMOS standard cell designed for low power consumption is supplemented so that the pick-up cells are included in the power line of the MTCMOS cell. Therefore, when the logic circuit is constructed using the library layout of the MTCMOS cell in which the related pick-up cells are not included, pick-up cells consisting of only the ends of the pick-up cells are not needed every 50 ?m during the placement of the MTCMOS standard cell. The flexibility of the cell placement may thereby be improved. In addition, since additional space for the pick-up cells is not required, the size of the MTCMOS may be reduced, saving space on the semiconductor substrate.
    Type: Application
    Filed: July 31, 2008
    Publication date: May 7, 2009
    Inventor: Dong-Hun Kim
  • Publication number: 20090108337
    Abstract: A method of protecting a transistor formed on a die of an integrated circuit is disclosed. The method comprises forming an active region of the transistor on the die; forming a gate of the transistor over the active region; coupling a primary contact to the gate of the transistor; coupling a programmable element between the gate of the transistor and a protection element; and decoupling the protection element from the gate of the transistor by way of the programmable element. Circuits for protecting a transistor formed on a die of an integrated circuit are also disclosed.
    Type: Application
    Filed: October 26, 2007
    Publication date: April 30, 2009
    Applicant: Xilinx, Inc.
    Inventors: Yuhao Luo, Shuxian Wu, Xin X. Wu, Jae-Gyung Ahn, Deepak Kumar Nayak, Daniel Gitlin
  • Publication number: 20090101940
    Abstract: A gate array cell adapted for standard cell design methodology or programmable gate array that incorporates a dual gate FET device to offer a range of performance options within the same unit cell area. The conductivity and drive strength of the dual gate device may be selectively tuned through independent processing of manufacturing parameters to provide an asymmetric circuit response for the device or a symmetric response as dictated by the circuit application.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 23, 2009
    Inventors: Corey K. Barrows, Joseph A. Iadanza, Edward J. Nowak, Douglas W. Stout
  • Publication number: 20090096002
    Abstract: System and method for reducing contact resistance and prevent variations due to misalignment of contacts is disclosed. A preferred embodiment comprises a non-planar transistor with source/drain regions located within a fin. An inter-layer dielectric overlies the non-planar transistor, and contacts are formed to the source/drain region through the inter-layer dielectric. The contacts preferably come into contact with multiple surfaces of the fin so as to increase the contact area between the contacts and the fin.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 16, 2009
    Inventors: Chen-Hua Yu, Cheng-Hung Chang, Chen-Nan Yeh, Yu-Rung Hsu
  • Publication number: 20090096000
    Abstract: The invention includes a semiconductor structure having U-shaped transistors formed by etching a semiconductor substrate. In an embodiment, the source/drain regions of the transistors are provided at the tops of pairs of pillars defined by crossing trenches in the substrate. One pillar is connected to the other pillar in the pair by a ridge that extends above the surrounding trenches. The ridge and lower portions of the pillars define U-shaped channels on opposite sides of the U-shaped structure, facing a gate structure in the trenches on those opposite sides, forming a two sided surround transistor. Optionally, the space between the pillars of a pair is also filled with gate electrode material to define a three-sided surround gate transistor. One of the source/drain regions of each pair extending to a digit line and the other extending to a memory storage device, such as a capacitor. The invention also includes methods of forming semiconductor structures.
    Type: Application
    Filed: December 19, 2008
    Publication date: April 16, 2009
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: Werner Juengling
  • Patent number: 7512012
    Abstract: The memory cell includes a first unit, a semiconductor layer, a second unit, and a doped region. The first unit includes a first gate, a first charge trapping layer, and a second charge trapping layer. The first and the second charge trapping layer are respectively disposed on both sides of the first gate. The semiconductor layer is disposed on the first unit. The second unit is disposed on the semiconductor layer and is in mirror symmetry to the first unit. The second unit includes a second gate and a third and a fourth charge trapping layer respectively disposed on both sides of the second gate. The doped region is disposed at both sides of the semiconductor layer and serves as a common source/drain region of both the first and the second unit.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 31, 2009
    Assignee: Macronix International Co., Ltd.
    Inventor: Ming-Chang Kuo
  • Publication number: 20090079005
    Abstract: Integrated circuits and methods of manufacture and design thereof are disclosed. For example, a method of manufacturing includes using a first mask to pattern a gate material forming a plurality of first and second features. The first features form gate electrodes of the semiconductor devices, whereas the second features are dummy electrodes. Based on the location of these dummy electrodes, selected dummy electrodes are removed using a second mask. The use of the method provides greater flexibility in tailoring individual devices for different objectives.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 26, 2009
    Inventors: Henning Haffner, Manfred Eller, Richard Lindsay
  • Publication number: 20090073776
    Abstract: A nonvolatile semiconductor memory device is provided in which stable transistor characteristics with little variation can be obtained, and sufficient threshold voltage and ON current fluctuations can be obtained. A source 2 and a drain 3 formed on a surface of a semiconductor substrate 1, and a gate electrode 5 formed via a gate insulating film 4 on the semiconductor substrate 1 between the source 2 and the drain 3 are provided, and a region of part of the gate electrode 5 forms a non-doped region 10 in which an impurity is not implanted in polysilicon, and another region of the gate electrode 5 forms a doped region 9 in which an impurity is implanted in the polysilicon.
    Type: Application
    Filed: September 17, 2008
    Publication date: March 19, 2009
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Noriaki KODAMA
  • Publication number: 20090067220
    Abstract: A semiconductor device has a first inverter including a drive transistor and a load transistor; a second inverter including a drive transistor and a load transistor, a transmission transistor provided between the output terminal of the first inverter and one line of a bit line pair, a transmission transistor provided between the output terminal of the second inverter and the other line of the bit line pair; and an isolation transistor for isolating the drive transistor and the transmission transistor. The transmission transistor, the transmission transistor, the drive transistor, and the isolation transistor are formed in a continuous active region and the isolation transistor is provided between the drive transistor and the transmission transistor.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 12, 2009
    Applicant: NEC Electronics Corporation
    Inventor: Shinobu Asayama
  • Publication number: 20090057714
    Abstract: A thyristor having a semiconductor body in which a p-doped emitter, an n-doped base, a p-doped base and an n-doped main emitter are arranged successively in a vertical direction starting from a rear face toward a front face. For buffering of the transient heating, a metallization is applied to the front face and/or to the rear face and includes at least one first section which has an area-specific heat capacity of more than 50 J·K?1·m?2 at each point.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicant: Infineon Technologies AG
    Inventors: Hans-Joachim Schulze, Franz-Josef Niedernostheide, Uwe Kellner-Werdehausen, Reiner Barthelmess
  • Publication number: 20090057723
    Abstract: A semiconductor device including a plurality of semiconductor elements, a substrate on which the plurality of semiconductor elements are mounted, the substrate also having a plurality of terminals for connecting to external equipment, a fuse mounted on the outside of a mounting area of the plurality of semiconductor elements and mounted on a surface of the substrate near a power supply terminal among the plurality of terminals, and the power supply terminal and the plurality of semiconductor elements are connected via the fuse.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Atsushi Kaneko, Yasuo Okada
  • Publication number: 20090057737
    Abstract: A method of fabricating an integrated circuit with a dielectric layer on a substrate is disclosed. One embodiment provides forming the dielectric layer in an amorphous state on the substrate, the dielectric layer having a crystallization temperature; a doping the dielectric layer; a forming of a covering layer on the dielectric layer at a temperature being equal to or below the crystallization temperature; and a heating of the dielectric layer to a temperature being equal to or greater than the crystallization temperature.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 5, 2009
    Applicant: QIMONDA AG
    Inventors: Tim Boescke, Johannes Heitmann, Uwe Schroder
  • Publication number: 20090050973
    Abstract: An integrated circuit is disclosed. In one embodiment, the integrated circuit includes a first area and a second area. The first area is stress engineered to provide enhanced mobility in a first channel that has a first width. The second area is stress engineered to provide enhanced mobility in a second channel that has a second width. The first channel and the second channel provide a combined current that is greater than a single current provided via a single channel having a single width that is substantially equal to the sum of the first width and the second width.
    Type: Application
    Filed: August 23, 2007
    Publication date: February 26, 2009
    Inventors: Gerhard Knoblinger, Franz Kuttner
  • Publication number: 20090039401
    Abstract: A logic circuit that can reconfigure its functions in a nonvolatile manner and a single-electron transistor to be used in the logic circuits are provided. The logic circuit has a single-electron spin transistor that includes: a source; a drain; an island that is provided between the source and the drain, and has tunnel junctions between the island and the source and drain; and a gate that is capacitively coupled to the island. In this logic circuit, at least one of the source, the drain, and the island includes a ferromagnetic material having a variable magnetization direction.
    Type: Application
    Filed: February 2, 2006
    Publication date: February 12, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Masaaki Tanaka, Satoshi Sugahara, Hai Nam Pham
  • Publication number: 20090039405
    Abstract: Memory devices having improved TPD characteristics and methods of making the memory devices are provided. The memory devices contain two or more memory cells on a semiconductor substrate and bit line openings containing a bit line dielectric between the memory cells. The memory cell contains a charge storage layer and a first poly gate. The bit line opening extends into the semiconductor substrate. By containing the bit line dielectric in the bit line openings that extend into the semiconductor substrate, the memory device can improve the electrical isolation between memory cells, thereby preventing and/or mitigating TPD.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 12, 2009
    Applicant: SPANSION LLC
    Inventors: Ning Cheng, K.T. Chang, Hiro Kinoshita, Chih-Yuh Yang, Lei Xue, Chungho Lee, Minghao Shen, Angela Hui, Huaqiang Wu
  • Publication number: 20090034318
    Abstract: A switching device according to the present invention includes ion conductive layer 23 containing titanium oxide, first electrode 21 provided in contact with ion conductive layer 23, and second electrode 22 provided in contact with ion conductive layer 23 and which can supply metal ions to ion conductive layer 23.
    Type: Application
    Filed: February 6, 2007
    Publication date: February 5, 2009
    Applicant: NEC CORPORATION
    Inventor: Noriyuki Iguchi
  • Publication number: 20090032898
    Abstract: A method is disclosed for defining a dynamic array section to be manufactured on a semiconductor chip. The method includes defining a peripheral boundary of the dynamic array section. The method also includes defining a manufacturing assurance halo outside the boundary of the dynamic array section. The method further includes controlling chip layout features within the manufacturing assurance halo to ensure that manufacturing of conductive features inside the boundary of the dynamic array section is not adversely affected by chip layout features within the manufacturing assurance halo.
    Type: Application
    Filed: January 11, 2008
    Publication date: February 5, 2009
    Applicant: Tela Innovations, Inc.
    Inventors: Scott T. Becker, Michael C. Smayling
  • Publication number: 20090032871
    Abstract: An integrated circuit includes a substrate including an active area, a first metal contact contacting a frontside of the active area, a second metal contact contacting a backside of the active area, and a wafer-level deposited metal structure positioned adjacent to an edge of the active area and interconnecting the first and second contacts.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 5, 2009
    Inventors: Louis Vervoort, Joachim Mahler
  • Publication number: 20090026552
    Abstract: A transistor structure is formed by providing a semiconductor substrate and providing a gate above the semiconductor substrate. The gate is separated from the semiconductor substrate by a gate insulating layer. A source and a drain are provided adjacent the gate to define a transistor channel underlying the gate and separated from the gate by the gate insulating layer. A barrier layer is formed by applying nitrogen or carbon on opposing outer vertical sides of the transistor channel between the transistor channel and each of the source and the drain. In each of the nitrogen and the carbon embodiments, the vertical channel barrier retards diffusion of the source/drain dopant species into the transistor channel. There are methods for forming the transistor structure.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 29, 2009
    Inventors: Da Zhang, Ning Liu, Mohamed S. Moosa
  • Publication number: 20090020784
    Abstract: A method for designing a semiconductor device and a semiconductor device of the present invention permits the achievement of a predetermined pattern area ratio while power supply lines are reinforced by connecting a dummy metal line, which is formed in an unoccupied region of a wiring layer for the purpose of achieving the predetermined area ratio, at its two or more points with a power supply line for VDD or VSS.
    Type: Application
    Filed: September 24, 2008
    Publication date: January 22, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Takayuki Araki, Fumihiro Kimura, Junichi Shimada, Kazuhisa Fujita
  • Publication number: 20090008725
    Abstract: A method of forming an electropositive metal-containing capping layer atop a stack of a high k gate dielectric/interfacial layer that avoids chemically and physically altering the high k gate dielectric and the interfacial layer is provided. The method includes chemical vapor deposition of an electropositive metal-containing precursor at a temperature that is about 400° C. or less. The present invention also provides semiconductor structures such as, for example, MOSCAPs and MOSFETs, that include a chemical vapor deposited electropositive metal-containing capping layer atop a stack of a high k gate dielectric and an interfacial layer. The presence of the CVD electropositive metal-containing capping layer does not physically or chemically alter the high k gate dielectric and the interfacial layer.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 8, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Supratik Guha, Fenton R. McFeely, Vijay Narayanan, Vamsi K. Paruchuri, John J. Yurkas
  • Publication number: 20090008680
    Abstract: A semiconductor integrated circuit device includes a semiconductor chip, a memory cell array arranged on the semiconductor chip and first and second decoder strings arranged along both ends of the memory cell array. The arrangement position of the first decoder string is deviated from the arrangement position of the second decoder string and a space caused by the deviation is arranged in the corner of the semiconductor chip.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 8, 2009
    Inventor: Takahiko HARA
  • Publication number: 20080315320
    Abstract: A semiconductor device having a core device with a high-k gate dielectric and an I/O device with a silicon dioxide or other non-high-k gate dielectric, and a method of fabricating such a device. A core well and an I/O well are created in a semiconductor substrate and separated by an isolation structure. An I/O device is formed over the I/O well and has a silicon dioxide or a low-k gate dielectric. A resistor may be formed on an isolation structure adjacent to the core well. A core-well device such as a transistor is formed over the core well, and has a high-k gate dielectric. In some embodiments, a p-type I/O well and an n-type I/O well are created. In a preferred embodiment, the I/O device or devices are formed prior to forming the core device and protected with a sacrificial layer until the core device is fabricated.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 25, 2008
    Inventors: Chung Long Cheng, Sheng-Chen Chung, Kong-Beng Thei, Harry Chuang, Mong Song Liang
  • Publication number: 20080316852
    Abstract: A nonvolatile semiconductor memory device comprises an array of memory cells each including an antifuse to store information based on a variation in resistance in accordance with destruction of the insulator in the antifuse. The antifuse includes a semiconductor substrate, a first conduction layer formed in the surface of the semiconductor substrate, a first electrode provided on the first conduction layer to be given a first voltage, a second conduction layer provided on the semiconductor substrate with the insulator interposed therebetween, and a second electrode provided on the second conduction layer to be given a second voltage different from the first voltage. The first electrode or the second electrode is formed of a metal silicide.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 25, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kensuke Matsufuji, Toshimasa Namekawa, Hiroshi Ito
  • Publication number: 20080308870
    Abstract: An integrated circuit is disclosed. One embodiment provides a field-effect transistor including a gate electrode, a channel region and a first source/drain region. The gate electrode may include a main section determining a first flat band voltage between the gate electrode and the channel region and a first lateral section that is in contact with the main section and that determines a second flat band voltage between the gate electrode and the first source/drain region. The first and second flat band voltages differ by at least 0.1 eV.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Applicant: QIMONDA AG
    Inventors: Juergen Faul, Stefan Slesazeck, Martin Popp, Rolf Weis
  • Publication number: 20080308850
    Abstract: A device includes a first transistor including a fin and a second transistor including a fin, the fin of the first transistor having a lower charge carrier mobility than the fin of the second transistor. In a method, the fin of the first transistor is treated to have a lower charge carrier mobility than the fin of the second transistor.
    Type: Application
    Filed: June 18, 2007
    Publication date: December 18, 2008
    Inventors: Jorg Berthold, Christian Pacha, Klaus von Arnim
  • Publication number: 20080308873
    Abstract: A semiconductor device using a CESL (contact etch stop layer) to induce strain in, for example, a CMOS transistor channel, and a method for fabricating such a device. A stress-producing CESL, tensile in an n-channel device and compressive in a p-channel device, is formed over the device gate structure as a discontinuous layer. This may be done, for example, by depositing an appropriate CESL, then forming an ILD layer, and simultaneously reducing the ILD layer and the CESL to a desired level. The discontinuity preferably exposes the gate electrode, or the metal contact region formed on it, if present. The upper boundary of the CESL may be further reduced, however, to position it below the upper boundary of the gate electrode.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 18, 2008
    Inventors: Chien-Liang Chen, Wen-Chih Yang, Chii-Horng Li, Harry Chuang
  • Publication number: 20080311714
    Abstract: A complimentary metal oxide semiconductor and a method of manufacturing the same using a self-aligning process to form one of the stacks of device. The method includes depositing an oxide layer over a portion of a metal layer over an nFET region of a CMOS structure and etching the metal layer over a pFET region of the CMOS structure. The method further includes etching at the oxide layer over the nFET region and forming gate structures over the nFET region and pFET region.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 18, 2008
    Applicant: International Business Machines Corporation
    Inventors: Bruce B. Doris, Thomas W. Dyer, Haining S. Yang
  • Publication number: 20080308783
    Abstract: Memory devices and methods of manufacturing the same are provided. In a memory device, a memory-switch structure is formed between a first and second electrode. The memory-switch structure includes a memory resistor and a switch structure. The switch structure controls current supplied to the memory resistor. A memory region of the memory resistor and a switch region of the switch structure are different from each other.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 18, 2008
    Inventors: Seung-eon Ahn, Myoung-jae Lee, Suk-pil Kim, Young-soo Park
  • Publication number: 20080303095
    Abstract: One embodiment of the present invention relates to an integrated circuit that includes a first multi-gate transistor that has a first fin width and a first threshold voltage. The integrated circuit also includes a second multi-gate transistor that has a second fin width that is greater than the first width and a second threshold voltage that is less than the first threshold voltage. Other circuits and methods are also disclosed.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Inventors: Weize Xiong, Cloves Rinn Cleavelin
  • Publication number: 20080303105
    Abstract: An SRAM cell structure containing a PFET gate dielectric having a thicker effective oxide thickness (EOT) than an NFET gate dielectric and methods of manufacturing the same is provided. The PFET gate dielectric and the NFET gate dielectric may be silicon oxynitride layers, CVD oxide layers, or high-K dielectric layers having different thicknesses. The PFET gate dielectric may be a stack of two dielectric layers and the NFET gate dielectric may be one of the two dielectric layers. The greater EOT of the PFET gate dielectric produces reduction of the on-current of the pull-up PFETs for optimal SRAM performance.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Leland Chang, Shreesh Narasimha, Jeffrey W. Sleight
  • Publication number: 20080303084
    Abstract: The disclosed embodiments relate to a vertical tunneling transistor that may include a channel disposed on a substrate. A quantum dot may be disposed so that an axis through the channel and the quantum dot is substantially perpendicular to the substrate. A gate may be disposed so that an axis through the channel, the quantum dot and the gate is substantially perpendicular to the substrate.
    Type: Application
    Filed: August 13, 2008
    Publication date: December 11, 2008
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: Gurtej S. Sandhu
  • Publication number: 20080304314
    Abstract: A method of operating a semiconductor device, a semiconductor device and a digital micromirror system are presented. In an embodiment, the semiconductor device comprises a grounded substrate, a memory array, and a reset driver. The memory array may be isolated from the grounded substrate with a buried layer. The set of voltages of the memory array may be shifted with respect to a reset voltage. The reset driver may drive the reset voltage and the reset driver may have at least one extended drain transistor in the grounded substrate.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 11, 2008
    Inventors: James D. Huffman, James Norman Hall
  • Publication number: 20080299717
    Abstract: A semiconductor device (10) is formed in a semiconductor layer (12). A gate stack (16,18) is formed over the semiconductor layer and comprises a first conductive layer (22) and a second layer (24) over the first layer. The first layer is more conductive and provides more stopping power to an implant than the second layer. A species (46) is implanted into the second layer. Source/drain regions (52) are formed in the semiconductor layer on opposing sides of the gate stack. The gate stack is heated after the step of implanting to cause the gate stack to exert stress in the semiconductor layer in a region under the gate stack.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Inventors: Brian A. Winstead, Konstantin V. Loiko, Voon-Yew Thean
  • Publication number: 20080296691
    Abstract: A semiconductor structure includes an array of unit metal-oxide-semiconductor (MOS) devices arranged in a plurality of rows and a plurality of columns is provided. Each of the unit MOS devices includes an active region laid out in a row direction and a gate electrode laid out in a column direction. The semiconductor structure further includes a first unit MOS device in the array and a second unit MOS device in the array, wherein active regions of the first and the second unit MOS devices have different conductivity types.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Harry Chuang, Kong-Beng Thei, Jen-Bin Hsu, Chung Long Cheng, Mong Song Liang
  • Publication number: 20080296702
    Abstract: A semiconductor structure includes a semiconductor substrate; and a first Fin field-effect transistor (FinFET) and a second FinFET at a surface of the semiconductor substrate. The first FinFET includes a first fin; and a first gate electrode over a top surface and sidewalls of the first fin. The second FinFET includes a second fin spaced apart from the first fin by a fin space; and a second gate electrode over a top surface and sidewalls of the second fin. The second gate electrode is electrically disconnected from the first gate electrode. The first and the second gate electrodes have a gate height greater than about one half of the fin space.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Tsung-Lin Lee, Chang-Yun Chang, Sheng-Da Liu, Fu-Liang Yang
  • Publication number: 20080290373
    Abstract: In a semiconductor memory device which includes a shared sense amplifier portion, a pair of memory cell portions disposed on opposite sides of the shared sense amplifier portion, a pair of transfer gates between the pair of memory cell portions and the shared sense amplifier portion, and bit lines constituting a plurality of bit line pairs and connecting the pair of memory cell portions to each other through the pair of transfer gates and the shared sense amplifier portion, the bit lines in a bit line pair of the plurality of bit line pairs are twisted at a substantial center between the pair of transfer gates on the opposite sides.
    Type: Application
    Filed: July 31, 2008
    Publication date: November 27, 2008
    Applicant: Elpida Memory, Inc.
    Inventors: Tomoko Nobutoki, Ken Ota
  • Publication number: 20080290367
    Abstract: A semiconductor power device supported on a semiconductor substrate includes a plurality of transistor cells each having a source and a drain with a gate to control an electric current transmitted between the source and the drain. The semiconductor further includes a source metal connected to the source region, and a gate metal configured as a metal stripe surrounding a peripheral region of the substrate connected to a gate pad wherein the gate metal and the gate pad are separated from the source metal by a metal gap. The semiconductor power device further includes an ESD protection circuit includes a plurality of doped dielectric regions of opposite conductivity types constituting ESD diodes extending across the metal gap and connected between the gate metal and the source metal on the peripheral region of the substrate.
    Type: Application
    Filed: May 21, 2007
    Publication date: November 27, 2008
    Inventors: Yi Su, Anup Bhalla, Daniel Ng, Wei Wang, Ji Pan
  • Publication number: 20080290374
    Abstract: In one embodiment of the present invention, a method for connecting a plurality of bit lines to sense circuitry comprises providing a plurality of bit lines extending from a memory array in a first metal layer. The plurality of bit lines are separated from each other by an average spacing x in a first region of the first metal layer. The method further comprises elevating a portion of the plurality of bit lines into a second metal layer overlying the first metal layer. The elevated bit lines are separated from each other by an average spacing y in the second metal layer, with y>x. The method further comprises extending a portion of the plurality of bit lines into a second region of the first metal layer. The extended bit lines are separated from each other by an average spacing z in the second region of the first metal layer, with z>x. The method further comprises connecting a bit line in the second metal layer and a bit line in the first metal layer to the sense circuitry.
    Type: Application
    Filed: August 4, 2008
    Publication date: November 27, 2008
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Qiang Tang, Ramin Ghodsi
  • Publication number: 20080283894
    Abstract: A method for forming Z-RAM cells and the resulting semiconductor structure are provided. The semiconductor structure includes a semiconductor substrate; a dielectric layer on the semiconductor substrate; an opening in the dielectric layer, wherein the semiconductor substrate is exposed through the opening; a semiconductor strip on the dielectric layer and adjacent the opening; a gate dielectric over a surface of the semiconductor strip; a gate electrode over the gate dielectric; and a source/drain region in the semiconductor strip and adjacent the gate electrode.
    Type: Application
    Filed: May 14, 2007
    Publication date: November 20, 2008
    Inventors: Ka-Hing Fung, Carlos H. Diaz
  • Publication number: 20080283871
    Abstract: A semiconductor integrated circuit having a substantially rectangular standard cell divided by first borderlines opposed to other standard cells longitudinally adjacent to the standard cell and second borderlines opposed to other standard cells laterally adjacent to the standard cell, the standard cell has: a p-type MOS transistor having first diffused regions and a first gate electrode; an n-type MOS transistor having second diffused regions and a second gate electrode with STI disposed for device isolation between the n-type MOS transistor and the p-type MOS transistor substantially in parallel with the first borderlines; dummy p-type MOS transistors having third gate electrodes disposed on the second borderlines so as to be adjacent to the first diffused regions of the p-type MOS transistor, the third gate electrodes being connected to power supply wiring so as to turn off the dummy p-type MOS transistors; and dummy n-type MOS transistors having fourth gate electrodes disposed on the second borderlines so
    Type: Application
    Filed: May 5, 2008
    Publication date: November 20, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Mototsugu HAMADA
  • Publication number: 20080283930
    Abstract: By depositing and forming a spacer out of a semiconductor material layer or a dielectric material layer on the edges of an inter-well isolation area while forming a plug over an intra-well isolation area, a narrow intra-well isolation trench having a normal depth is formed in the intra-well isolation area, while a wider inter-well isolation trench having an extended portion is formed in the inter-well isolation area. The extended portion of the inter-well isolation trench provides enhanced inter-well isolation due to the presence of the extended portion beneath the normal depth. The extended portion of the inter-well isolation trench enables reduction of the width of the intra-well isolation trench structure relative to prior art inter-well isolation structures having a normal depth.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Thomas W. Dyer, Haining S. Yang
  • Publication number: 20080277694
    Abstract: A semiconductor component that includes a Schottky device, an edge termination structure, a non-Schottky semiconductor device, combinations thereof and a method of manufacturing the semiconductor component. A semiconductor material includes a first epitaxial layer disposed on a semiconductor substrate and a second epitaxial layer disposed on the first epitaxial layer. The second epitaxial layer has a higher resistivity than the semiconductor substrate. A Schottky device and a non-Schottky semiconductor device are manufactured from the second epitaxial layer. In accordance with another embodiment, a semiconductor material includes an epitaxial layer disposed over a semiconductor substrate. The epitaxial layer has a higher resistivity than the semiconductor substrate. A doped region is formed in the epitaxial layer. A Schottky device and a non-Schottky semiconductor device are manufactured from the epitaxial layer.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Inventors: Zia Hossain, Francine Y. Robb, Prasad Venkatraman
  • Publication number: 20080280409
    Abstract: Some embodiments include DRAM having transistor gates extending partially over SOI, and methods of forming such DRAM. Unit cells of the DRAM may be within active region pedestals, and in some embodiments the unit cells may comprise capacitors having storage nodes in direct contact with sidewalls of the active region pedestals. Some embodiments include 0C1T memory having transistor gates entirely over SOI, and methods of forming such 0C1T memory.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 13, 2008
    Inventor: Kunal R. Parekh