Metal-insulator-semiconductor (e.g., Mos Capacitor) (epo) Patents (Class 257/E29.345)
  • Patent number: 8053340
    Abstract: A transistor which includes halo regions disposed in a substrate adjacent to opposing sides of the gate. The halo regions have upper and lower regions. The upper region is a crystalline region with excess vacancies and the lower region is an amorphous region. Source/drain diffusion regions are disposed in the halo regions. The source/drain diffusion regions overlap the upper and lower halo regions. This architecture offers the minimal extension resistance as well as minimum lateral diffusion for better CMOS device scaling.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: November 8, 2011
    Assignees: National University of Singapore, Globalfoundries Singapore Pte. Ltd.
    Inventors: Benjamin Colombeau, Sai Hooi Yeong, Francis Benistant, Bangun Indajang, Lap Chan
  • Publication number: 20110255348
    Abstract: A Non-Volatile Memory (NVM) cell and programming method in which the cell can denote at least two logic levels (e.g., 0 and 1) and includes a read-transistor with a floating gate and a Band-To-Band-Tunneling device (BTBT device) sharing the floating gate with the read transistor. The BTBT device is configured as an injection device for injecting a first charge onto the floating gate when the BTBT device is biased so that it is in accumulation, to set at least one of the logic levels.
    Type: Application
    Filed: June 10, 2011
    Publication date: October 20, 2011
    Applicant: SYNOPSYS, INC.
    Inventor: Andrew E. Horch
  • Publication number: 20110254066
    Abstract: A semiconductor device includes, a semiconductor substrate, a first transistor of a first conductivity type, a second transistor of a second conductivity type, a first capacitor, and a first wiring. The semiconductor substrate includes first, second, and third regions. The third region is sandwiched between the first and second regions. The first transistor of the first conductivity type is disposed in the first region. The second transistor of the second conductivity type is disposed in the second region. The first capacitor is disposed in the third region. The first wiring electrically couples one of main electrodes of the first transistor and one of main electrodes of the second transistor. The first wiring passes above the first capacitor.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 20, 2011
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Yuki MIURA
  • Publication number: 20110233629
    Abstract: Integrated circuit devices include a substrate having a semiconductor substrate region therein containing multiple well regions of different conductivity type. A first semiconductor well region of first conductivity type is provided in the semiconductor substrate region. This first semiconductor well region has a first plurality of transistor regions therein arranged in a first zig-zag pattern extending across the semiconductor substrate region. A second semiconductor well region of second conductivity type is also provided in the semiconductor substrate region. This second semiconductor well region has a second plurality of transistor regions therein arranged in a second zig-zag pattern extending across the semiconductor substrate region. This second zig-zag pattern is intertwined with the first zig-zag pattern.
    Type: Application
    Filed: February 1, 2011
    Publication date: September 29, 2011
    Inventor: SangShin Han
  • Patent number: 8026552
    Abstract: The protection element of the present invention is constructed of a MOS capacitor composed of a semiconductor substrate, an insulating film formed on the semiconductor substrate and a word line formed on the insulating film. A well region having a conductivity type opposite to that of the semiconductor substrate is formed in a portion of the semiconductor substrate constituting the MOS capacitor. If charge exceeding the breakdown voltage of the insulating film constituting the MOS capacitor is induced in the word line, the induced charge is released into either the semiconductor substrate or the well region depending on whether the induced charge is positive or negative.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: September 27, 2011
    Assignee: Panasonic Corporation
    Inventors: Yukihiro Yamashita, Keita Takahashi
  • Publication number: 20110215388
    Abstract: A pin capacitor of a semiconductor device includes a first isolation layer formed in a substrate and defining a dummy active area, a plurality of gates formed over the first isolation layer, a spacer formed at both sidewalls of each of the gates, and a plug formed over the dummy active area and in contact with the spacer. The substrate and the plug are coupled to a ground unit, and the gate is coupled to a pad unit. That is, the pin capacitor includes a first capacitor including the gate, the isolation layer, and the substrate and a second capacitor including the gate, the spacer, and the plug, which are coupled in parallel to each other.
    Type: Application
    Filed: December 8, 2010
    Publication date: September 8, 2011
    Inventor: Jeong-Soo KIM
  • Publication number: 20110215390
    Abstract: A semiconductor device includes capacitors connected in parallel. Electrode active portions and a discharge active portion are defined on a semiconductor substrate, and capping electrodes are disposed respectively on the electrode active portions. A capacitor-dielectric layer is disposed between each of the capping electrodes and each of the electrode active portions that overlap each other. A counter doped region is disposed in the discharge active portion. A lower interlayer dielectric covers the entire surface of the semiconductor substrate. Electrode contact plugs respectively contact the capping electrodes through the lower interlayer dielectric, and a discharge contact plug contacts the counter doped region through the lower interlayer dielectric. A lower interconnection is disposed on the lower interlayer dielectric and contacts the electrode contact plugs and the discharge contact plug.
    Type: Application
    Filed: January 19, 2011
    Publication date: September 8, 2011
    Inventors: Myoungsoo Kim, Yoonkyung Choi, Eun Young Lee, Sungil Jo
  • Publication number: 20110210385
    Abstract: A non-volatile semiconductor device, a programmable memory device, a capacitor and a metal oxide semiconductor are disclosed, wherein the non-volatile semiconductor device includes a gate dielectric layer, a floating gate, a coupling gate, a source and a drain. The gate dielectric layer is formed on a semiconductor substrate. The floating gate is formed on the gate dielectric layer. The source and the drain are formed in the semiconductor substrate and are disposed at opposing sides of the floating gate. The coupling gate consists essentially of a capacitor dielectric layer and a contact plug, where the capacitor dielectric layer is formed on the floating gate, and the contact plug is formed on the capacitor dielectric layer.
    Type: Application
    Filed: December 21, 2010
    Publication date: September 1, 2011
    Inventors: Chrong-Jung LIN, Ya-Chin KING
  • Publication number: 20110205774
    Abstract: A matrix is formed using a plurality of memory cells in each of which a drain of the writing transistor is connected to a gate of a reading transistor and one electrode of a capacitor. A gate of the writing transistor, a source of the writing transistor, a source of the reading transistor, and a drain of the reading transistor are connected to a writing word line, a writing bit line, a reading bit line, and a bias line, respectively. The other electrode of the capacitor is connected to a reading word line. In order to decrease the number of wirings, the writing bit line is substituted for the reading bit line. The reading bit line is formed so as to be embedded in a groove-like opening formed over a substrate.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 25, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Yasuhiko TAKEMURA
  • Patent number: 8004023
    Abstract: A semiconductor device having a semiconductor substrate including a first region and a second region is provided. The semiconductor device further includes a gate electrode on the first region and having a first sidewall and a second sidewall, a first source region in the first region proximate to the first sidewall, a first drain region in the first region proximate to the second sidewall, an upper electrode on the second region and having a first sidewall and a second sidewall, a second source region in the second region proximate to the first sidewall of the upper electrode, and a second drain region in the second region proximate to the second sidewall of the upper electrode, wherein an impurity doping concentration of the first source region and the first drain region is greater than an impurity doping concentration of the second source region and the second drain region.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: August 23, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-won Ha, Tae-hyun An, Min-young Shim
  • Patent number: 7999364
    Abstract: A lead frame structure for supporting a semiconductor die is disclosed that includes at least two electrical leads each having a plurality of finger shaped structures unilaterally extending outward from the at least two electrical leads. The electrical leads are arranged so that the plurality of finger shaped structures forms inter-digital patterns where the semiconductor dies are bonded to the lead frame structure.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: August 16, 2011
    Assignee: Monolithic Power Systems, Inc.
    Inventor: Hunt H. Jiang
  • Publication number: 20110193194
    Abstract: Proposed are thin film MIM capacitors with which deterioration of insulating properties and leakage current properties can be sufficiently inhibited. Also proposed is a manufacturing method for the thin film MIM capacitors. For the thin film MIM capacitor (1), a lower electrode (3), a base metal thin film (4), the dielectric thin film (5) and the upper electrode (6) are formed to approximately the same area. The lower electrode (3) has a configuration that differs from the other films to form a part for external connection. The side surface of the base metal thin film (4), the dielectric thin film (5), and the upper electrode (6) are covered with a base metal oxide (7) that comprises the same metal atoms as the base metal thin film (4).
    Type: Application
    Filed: October 26, 2009
    Publication date: August 11, 2011
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Tomoyuki Takahashi, Kentarou Morito, Yuichi Sasajima, Yoshinari Take
  • Patent number: 7989892
    Abstract: A gate structure can include a polysilicon layer, a metal layer on the polysilicon layer, a metal silicide nitride layer on the metal layer and a silicon nitride mask on the metal silicide nitride layer.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Ho Cha, Seong-Hwee Cheong, Jong-Min Baek, Jae-Hwa Park, Gil-Heyun Choi, Byung-Hee Kim, Byung-Hak Lee, Hee-Sook Park
  • Patent number: 7985990
    Abstract: A symmetrical circuit is disclosed (FIG. 4). The circuit includes a first transistor (220) having a first channel in a substantial shape of a parallelogram (FIG. 5A) with acute angles. The first transistor has a first current path (506) oriented in a first crystal direction (520). A first control gate (362) overlies the first channel. A second transistor (222) is connected to the first transistor and has a second channel in the substantial shape of a parallelogram with acute angles. The second transistor has a second current path (502) oriented parallel to the first current path. A second control gate (360) overlies the second channel.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: July 26, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Ashesh Parikh, Anand Seshadri
  • Patent number: 7986009
    Abstract: A circuit arrangement including a capacitor in an n-type well is disclosed. A specific polarization of the capacitor ensures that a depletion zone arises in the well and the capacitor has a high ESD strength. An optionally present auxiliary doping layer ensures a high area capacitance of the capacitor despite high ESD strength.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 26, 2011
    Assignee: Infineon Technologies AG
    Inventors: Kai Esmark, Harald Gossner, Christian Russ, Jens Schneider
  • Publication number: 20110176368
    Abstract: A multiple time programmable (MTP) memory cell, in accordance with an embodiment, includes a floating gate PMOS transistor, a high voltage NMOS transistor, and an n-well capacitor. The floating gate PMOS transistor includes a source that forms a first terminal of the memory cell, a drain and a gate. The high voltage NMOS transistor includes a source connected to ground, an extended drain connected to the drain of the PMOS transistor, and a gate forming a second terminal of the memory cell. The n-well capacitor includes a first terminal connected to the gate of the PMOS transistor, and a second terminal forming a third terminal of the memory cell. The floating gate PMOS transistor can store a logic state. Combinations of voltages can be applied to the first, second and third terminals of the memory cell to program, inhibit program, read and erase the logic state.
    Type: Application
    Filed: March 31, 2011
    Publication date: July 21, 2011
    Applicant: INTERSIL AMERICAS INC.
    Inventors: Alexander Kalnitsky, Michael Church
  • Patent number: 7982253
    Abstract: A semiconductor device with a dynamic gate drain capacitance. One embodiment provides a semiconductor device. The device includes a semiconductor substrate, a field effect transistor structure including a source region, a first body region, a drain region, a gate electrode structure and a gate insulating layer. The gate insulating layer is arranged between the gate electrode structure and the body region. The gate electrode structure and the drain region partially form a capacitor structure including a gate-drain capacitance configured to dynamically change with varying reverse voltages applied between the source and drain regions. The gate-drain capacitance includes at least one local maximum at a given threshold or a plateau-like course at given reverse voltage.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: July 19, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Anton Mauder, Hans-Joachim Schulze, Carolin Tolksdorf, Winfried Kaindl, Armin Willmeroth
  • Publication number: 20110169064
    Abstract: A read transistor for single poly non-volatile memory using a body contacted SOI transistor and a method of manufacturing the same is provided. The non-volatile random access memory is formed in silicon on insulator (SOI). The non-volatile random access memory includes a read field effect transistor (FET) having a body contact formed in the silicon of the SOI. The body contact is in electrical contact with a diffusion region under a gate of the read FET.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 14, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anthony I. Chou, Arvind Kumar
  • Patent number: 7977722
    Abstract: Non-volatile memory with programmable capacitance is disclosed. Illustrative data memory units include a substrate including a source region and a drain region. A first insulating layer is over the substrate. A second insulating layer is over the substrate and between the source region and drain region. A solid electrolyte layer is between the first insulating layer and second insulating layer. The solid electrolyte layer has a capacitance that is controllable between at least two states. A first electrode is electrically coupled to a first side of the solid electrolyte layer and is electrically coupled to a voltage source. A second electrode is electrically coupled to a second side of the solid electrolyte layer and is electrically coupled to the voltage source. Multi-bit memory units are also disclosed.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: July 12, 2011
    Assignee: Seagate Technology LLC
    Inventors: Xuguang Wang, Shuiyuan Huang, Dimitar V. Dimitrov, Michael Xuefei Tang, Song S. Xue
  • Patent number: 7977721
    Abstract: A method for increasing a voltage tolerance of a MOS device having a first capacitance value associated therewith is provided. The method includes the steps of: connecting at least a first capacitor in series with the MOS device, the first capacitor having a first capacitance value associated therewith, the first capacitor having a first terminal coupled to a gate of the MOS device and a second terminal adapted to receive a first signal; and adjusting a ratio of the first capacitance value and a second capacitance value associated with the MOS device such that a second signal present at the gate of the MOS device will be an attenuated version of the first signal. An amount of attenuation of the first signal is a function of the ratio of the first and second capacitance values.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: July 12, 2011
    Assignee: Agere Systems Inc.
    Inventor: Edward B. Harris
  • Publication number: 20110157961
    Abstract: The semiconductor device includes a source line, a bit line, a first signal line, a second signal line, a word line, memory cells connected in parallel between the source line and the bit line, a first driver circuit electrically connected to the source line and the bit line, a second driver circuit electrically connected to the first signal line, a third driver circuit electrically connected to the second signal line, and a fourth driver circuit electrically connected to the word line. The memory cell includes a first transistor including a first gate electrode, a first source electrode, and a first drain electrode, a second transistor including a second gate electrode, a second source electrode, and a second drain electrode, and a capacitor. The second transistor includes an oxide semiconductor material.
    Type: Application
    Filed: December 27, 2010
    Publication date: June 30, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Jun Koyama, Kiyoshi Kato
  • Publication number: 20110156128
    Abstract: The present invention provides a manufacturing method of a dielectric film which reduces a leak current value while suppressing the reduction of a relative permittivity, suppresses the reduction of a deposition rate caused by the reduction of a sputtering rate, and also provides excellent planar uniformity. A dielectric film manufacturing method according to an embodiment of the present invention is forms a dielectric film of a metal oxide mainly containing Al, Si, and O on a substrate, and comprises steps of forming the metal oxide having an amorphous structure in which a molar fraction between an Al element and a Si element, Si/(Si+Al), is 0<Si/(Si+Al)?0.1, and subjecting the metal oxide having the amorphous structure to annealing treatment at a temperature of 1000° C. or more to form the metal oxide including a crystalline phase.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: CANON ANELVA CORPORATION
    Inventors: Junko ONO, Naomu KITANO, Takashi NAKAGAWA
  • Publication number: 20110147891
    Abstract: A capacitor (110), wherein the capacitor (110) comprises a capacitor dielectric (112) comprising a dielectric matrix (114) of a first value of permittivity, and a plurality of nanoclusters (116) of a second value of permittivity which is larger than the first value of permittivity which are at least partially embedded in the dielectric matrix (114), wherein the plurality of nanoclusters (116) are formed in the dielectric matrix (114) by spontaneous nucleation.
    Type: Application
    Filed: August 11, 2009
    Publication date: June 23, 2011
    Applicant: NXP B.V.
    Inventors: Yukiko Furukawa, Jinesh Balakrishna Pillai Kochupurackal, Johan Hendrik Klootwijk, Frank Pasveer
  • Publication number: 20110147889
    Abstract: A semiconductor device includes an insulating film over a silicon substrate, the insulating film having an opening and a contact plug in the opening, the contact plug having a first top that is lower than an upper face of the insulating film.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 23, 2011
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Keiichi TSUCHIYA
  • Publication number: 20110140184
    Abstract: A vertical transistor having an annular transistor body surrounding a vertical pillar, which can be made from oxide. The transistor body can be grown by a solid phase epitaxial growth process to avoid difficulties with forming sub-lithographic structures via etching processes. The body has ultra-thin dimensions and provides controlled short channel effects with reduced need for high doping levels. Buried data/bit lines are formed in an upper surface of a substrate from which the transistors extend. The transistor can be formed asymmetrically or offset with respect to the data/bit lines. The offset provides laterally asymmetric source regions of the transistors. Continuous conductive paths are provided in the data/bit lines which extend adjacent the source regions to provide better conductive characteristics of the data/bit lines, particularly for aggressively scaled processes.
    Type: Application
    Filed: February 14, 2011
    Publication date: June 16, 2011
    Inventor: Leonard Forbes
  • Patent number: 7956397
    Abstract: A semiconductor device comprising: a first well region which is formed at a surface portion of a semiconductor substrate and to which a first voltage is applied; a gate insulating film which is formed on the first well region; a gate electrode which is formed on the gate insulating film and has a polarity different from a polarity of the first well region and to which a second voltage is applied; and an element isolating region which is formed at a surface portion of the first well region to surround a region within the first well region that is opposed to the gate insulating film, wherein a capacitance is formed between the region within the first well region surrounded by the element isolating region and the gate electrode.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 7, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Osamu Wada, Toshimasa Namekawa
  • Patent number: 7952128
    Abstract: Provided is a metal oxide semiconductor (MOS) capacitor, in which trenches (3) are formed in a charge accumulation region (6) of a p-type silicon substrate (1) to reduce a contact area between the p-type silicon substrate (1) and a lightly doped n-type well region (2), thereby reducing a leak current from the lightly doped n-type well region (2) to the p-type silicon substrate (1).
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: May 31, 2011
    Assignee: Seiko Instruments Inc.
    Inventors: Shinjiro Kato, Jun Osanai
  • Publication number: 20110115008
    Abstract: A means for selectively electrically connecting an electrical interconnect line, such as a bit line of a memory cell, with an associated contact stud and electrically isolating the interconnect line from other partially underlying contact studs for other electrical features, such as capacitor bottom electrodes. The interconnect line can be formed partially-connected to all contact studs, thereby allowing the electrical features to be formed in closer proximity to one another for higher levels of integration, and in subsequent steps of fabrication, the contact studs associated with memory cell features other than the interconnect line can be isolated from the interconnect line by the removal of a silicide cap, or the selective etching of a portion of these contact studs, and the formation of an insulating sidewall between the non-selected contact stud and the interconnect line.
    Type: Application
    Filed: January 24, 2011
    Publication date: May 19, 2011
    Inventor: John M. Drynan
  • Patent number: 7943978
    Abstract: In a semiconductor device, the semiconductor device may include a first active structure, a first gate insulation layer, a first gate electrode, a first impurity region, a second impurity region and a contact structure. The first active structure may include a first lower pattern in a first region of a substrate and a first upper pattern on the first lower pattern. The first gate insulation layer may be formed on a sidewall of the first upper pattern. The first gate electrode may be formed on the first gate insulation layer. The first impurity region may be formed in the first lower pattern. The second impurity region may be formed in the first upper pattern. The contact structure may surround an upper surface and an upper sidewall of the first upper pattern including the second impurity region. Accordingly, the contact resistance between the contact structure and the second impurity region may be decreased and structural stability of the contact structure may be improved.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: May 17, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kang-Uk Kim, Jae-Man Yoon, Yong-Chul Oh, Hui-Jung Kim, Hyun-Woo Chung, Hyun-Gi Kim
  • Publication number: 20110110156
    Abstract: There is provided a technology which can allow a semiconductor chip formed with a nonvolatile memory to be sufficiently reduced in size. There is also provided a technology which can ensure the reliability of the nonvolatile memory. In a memory cell of the present invention, a boost gate electrode is formed over a control gate electrode via an insulating film. The boost gate electrode has the function of boosting a voltage applied to a memory gate electrode through capacitive coupling between the boost gate electrode and the memory gate electrode. That is, during a write operation or an erase operation to the memory cell, a high voltage is applied to the memory gate electrode and, to apply the high voltage to the memory gate electrode, the capacitive coupling using the boost gate electrode is subsidiarily used in the present invention.
    Type: Application
    Filed: October 23, 2010
    Publication date: May 12, 2011
    Inventors: Yoshiyuki KAWASHIMA, Takashi Hashimoto
  • Publication number: 20110108900
    Abstract: A method of forming a field effect transistor (FET) capacitor includes forming a channel region; forming a gate stack over the channel region; forming a first extension region on a first side of the gate stack, the first extension region being formed by implanting a first doping material at a first angle such that a shadow region exists on a second side of the gate stack; and forming a second extension region on the second side of the gate stack, the second extension region being formed by implanting a second doping material at a second angle such that a shadow region exists on the first side of the gate stack.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 12, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Leland Chang, Chung-Hsun Lin, Brian L. Ji, Jeffrey W. Sleight
  • Patent number: 7939876
    Abstract: A conductive strap spacer is formed within a buried strap cavity above an inner electrode recessed below a top surface of a buried insulator layer of a semiconductor-on-insulator (SOI) substrate. A portion of the conductive strap spacer is metallized by reacting with a metal to form a strap metal semiconductor alloy region, which is contiguous over the conductive strap spacer and a source region, and may extend to a top surface of the buried insulator layer along a substantially vertical sidewall of the conductive strap spacer. The conductive strap spacer and the strap metal semiconductor alloy region provide a stable electrical connection between the inner electrode of the deep trench capacitor and the source region of the access transistor.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: May 10, 2011
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Byeong Y. Kim
  • Patent number: 7939874
    Abstract: A semiconductor device has semiconductor elements formed on a silicon substrate. A first one of the semiconductor elements has a region formed with a surface orientation of <100>. A second one of the semiconductor elements has a region formed with a surface orientation of <110>or <111>. A third one of the semiconductor elements has a region formed with a surface orientation different from the respective surface orientations of the regions of the first and second semiconductor elements.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: May 10, 2011
    Assignee: Seiko Instruments Inc.
    Inventor: Hitomi Sakurai
  • Publication number: 20110095348
    Abstract: Technique of improving a manufacturing yield of a semiconductor device including a non-volatile memory cell in a split-gate structure is provided. A select gate electrode of a CG shunt portion is formed so that a second height d2 from the main surface of the semiconductor substrate of the select gate electrode of the CG shunt portion positioned in the feeding region is lower than a first height d1 of the select gate electrode from the main surface of the semiconductor substrate in a memory cell forming region.
    Type: Application
    Filed: October 27, 2010
    Publication date: April 28, 2011
    Inventors: Hiraku CHAKIHARA, Yasushi Ishii
  • Publication number: 20110089476
    Abstract: In one embodiment, a transistor fabricated on a semiconductor die includes a first section of transistor segments disposed in a first area of the semiconductor die, and a second section of transistor segments disposed in a second area of the semiconductor die adjacent the first area. Each of the transistor segments in the first and second sections includes a pillar of a semiconductor material that extends in a vertical direction. First and second dielectric regions are disposed on opposite sides of the pillar. First and second field plates are respectively disposed in the first and second dielectric regions. Outer field plates of transistor segments adjoining first and second sections are either separated or partially merged.
    Type: Application
    Filed: November 1, 2010
    Publication date: April 21, 2011
    Applicant: Power Integrations, Inc.
    Inventors: Vijay Parthasarathy, Sujit Banerjee, Martin H. Manley
  • Publication number: 20110084326
    Abstract: A method of forming a film of lanthanide oxide nanoparticles. In one embodiment of the present invention, the method includes the steps of: (a) providing a first substrate with a conducting surface and a second substrate that is positioned apart from the first substrate, (b) applying a voltage between the first substrate and the second substrate, (c) immersing the first substrate and the second substrate in a solution that comprises a plurality of lanthanide oxide nanoparticles suspended in a non-polar solvent or apolar solvent for a first duration of time effective to form a film of lanthanide oxide nanoparticles on the conducting surface of the first substrate, and (d) after the immersing step, removing the first substrate from the solution and exposing the first substrate to air while maintaining the applied voltage for a second duration of time to dry the film of lanthanide oxide nanoparticles formed on the conducting surface of the first substrate.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 14, 2011
    Applicant: VANDERBILT UNIVERSITY
    Inventors: James Dickerson, Sameer V. Mahajan
  • Publication number: 20110079835
    Abstract: A semiconductor device includes MOS transistors, capacitor elements, a voltage generating circuit, a contact plug, and a memory cell. The MOS transistor and the capacitor element are formed on a first one of the element regions and a second one of the element regions, respectively. In the voltage generating circuit, current paths of the MOS transistors are series-connected and the capacitor elements are connected to the source or drain of the MOS transistors. The contact plug is formed on the source or the drain to connect the MOS transistors or one of the MOS transistors and one of the capacitor elements. A distance between the gate and the contact plug both for a first one of the MOS transistors located in the final stage in the series connection is larger than that for a second one of the MOS transistors located in the initial stage in the series connection.
    Type: Application
    Filed: December 13, 2010
    Publication date: April 7, 2011
    Inventors: Mitsuhiro Noguchi, Kenji Gomikawa
  • Publication number: 20110079786
    Abstract: An organic light emitting diode display includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including an impurity-doped polycrystalline silicon layer, a first capacitor electrode on the substrate main body, the first capacitor electrode including an impurity-doped polycrystalline silicon layer, and bottom surfaces of the first capacitor electrode and semiconductor layer facing the substrate main body being substantially coplanar, a gate insulating layer on the semiconductor layer and the first capacitor electrode, a gate electrode on the semiconductor layer with the gate insulating layer therebetween, and a second capacitor electrode on the first capacitor electrode with the gate insulating layer therebetween, bottom surfaces of the second capacitor electrode and gate electrode facing the substrate main body being substantially coplanar, and the second capacitor electrode having a smaller thickness than the gate electrode.
    Type: Application
    Filed: April 13, 2010
    Publication date: April 7, 2011
    Inventors: Oh-Seob Kwon, Moo-Soon Ko
  • Publication number: 20110079834
    Abstract: A semiconductor integrated circuit device has: a MISFET having source/drain diffusion layers; first plugs respectively connected to the source/drain diffusion layers; a first interconnection connected to one of the source/drain diffusion layers through the first plug; a second plug electrically connected to the other Of the source/drain diffusion layers through the first plug; a second interconnection connected to the second plug; and a capacitor electrode located above a gate electrode of the MISFET. The first interconnection is formed not above the lower capacitor electrode, while the second interconnection is formed above the upper capacitor electrode. A plug connecting the first interconnection and another interconnection is not provided at an upper location of the one of the source/drain diffusion layers. The first interconnection is not provided at an upper location of the other of the source/drain diffusion layers.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Applicant: Renesas Electronics Corporation
    Inventors: Masayuki YANAGISAWA, Hiroshi Furuta, Hiroyasu Kitajima, Katsuya Izumi
  • Publication number: 20110073989
    Abstract: Optical modulator utilizing wafer bonding technology. An embodiment of a method includes etching a silicon on insulator (SOI) wafer to produce a first part of a silicon waveguide structure on a first surface of the SOI wafer, and preparing a second wafer, the second wafer including a layer of crystalline silicon, the second wafer including a first surface of crystalline silicon. The method further includes bonding the first surface of the second wafer with a thin oxide to the first surface of the SOI wafer using a wafer bonding technique, wherein a second part of the silicon waveguide structure is etched in the layer of crystalline silicon.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: Haisheng Rong, Ansheng Liu
  • Publication number: 20110073924
    Abstract: A non-volatile memory cell includes a semiconductor substrate with isolation structures formed therein and thereby transistor region and capacitor region are defined therein. A conductor is disposed over the isolation structures, the transistor region and a first-type doped well disposed in the capacitor region. The conductor includes a capacitor portion disposed over the first-type doped well, a transistor portion disposed over the transistor region, a first edge disposed over the isolation structure at a side of the transistor region, and an opposite second edge disposed over the first-type doped well. Two first ion doped wells are disposed in the transistor region and respectively at two sides of the transistor portion, and constitutes a transistor with the transistor portion. A second ion doped region is disposed in the capacitor region excluding the conductor and constitutes a capacitor with the capacitor portion.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Inventors: Hung-Lin SHIH, Bin Chen, JR., Pei-Ching Yin, Hui-Fang Tsai
  • Patent number: 7910971
    Abstract: A method of forming a vertical field effect transistor includes etching an opening into semiconductor material. Sidewalls and radially outermost portions of the opening base are lined with masking material. A semiconductive material pillar is epitaxially grown to within the opening adjacent the masking material from the semiconductor material at the opening base. At least some of the masking material is removed from the opening. A gate dielectric is formed radially about the pillar. Conductive gate material is formed radially about the gate dielectric. An upper portion of the pillar is formed to comprise one source/drain region of the vertical transistor. Semiconductive material of the pillar received below the upper portion is formed to comprise a channel region of the vertical transistor. Semiconductor material adjacent the opening is formed to comprise another source/drain region of the vertical transistor. Other aspects and implementations are contemplated.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: March 22, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Larson Lindholm, David Hwang
  • Patent number: 7897999
    Abstract: A semiconductor integrated circuit device includes a power supply line connected to a power supply terminal, a ground line connected to a ground terminal and a plurality of capacitors connected in parallel between the power supply line and the ground line. The plurality of capacitors include a first capacitor arranged at a first distance from one of the terminals and a second capacitor arranged at a second distance which is larger than the first distance from the one of the terminals, and the first capacitor has a larger area than the second capacitor.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: March 1, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Hiroshi Furuta
  • Patent number: 7898013
    Abstract: Methods and systems for optimal decoupling capacitance in a dual-voltage power-island architecture. In low-voltage areas of the chip, accumulation capacitors of two different types are used for decoupling, depending on whether the capacitor is located in an area which is always-on or an area which is conditionally powered.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: March 1, 2011
    Assignee: SanDisk Corporation
    Inventors: Brian Cheung, Emmanuel De Muizon
  • Publication number: 20110037110
    Abstract: The semiconductor device comprises a device isolation region 14 formed in a semiconductor substrate 10, a lower electrode 16 formed in a device region 12 defined by the device isolation region and formed of an impurity diffused layer, a dielectric film 18 of a thermal oxide film formed on the lower electrode, an upper electrode 20 formed on the dielectric film, an insulation layer 26 formed on the semiconductor substrate, covering the upper electrode, a first conductor plug 30a buried in a first contact hole 28a formed down to the lower electrode, and a second conductor plug 30b buried in a second contact hole 28b formed down to the upper electrode, the upper electrode being not formed in the device isolation region. The upper electrode 20 is not formed in the device isolation region 14, whereby the short-circuit between the upper electrode 20 and the lower electrode 16 in the cavity can be prevented. Thus, a capacitor of high reliability can be provided.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 17, 2011
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Makoto Yasuda, Akiyoshi Watanabe, Yoshihiro Matsuoka
  • Publication number: 20110024813
    Abstract: Methods and apparatus are described for MOS capacitors (MOS CAPs). The apparatus comprises a substrate having Ohmically coupled N and P semiconductor regions covered by a dielectric. A conductive electrode overlies the dielectric above these N and P regions. Use of the Ohmically coupled N and P regions substantially reduces the variation of capacitance with applied voltage associated with ordinary MOS CAPs. When these N and P regions have unequal doping, the capacitance variation may still be substantially compensated by adjusting the properties of the dielectric above the N and P regions and/or relative areas of the N and P regions or both. Accordingly, such MOS CAPS may be more easily integrated with other semiconductor devices with minimal or no disturbance to the established integrated circuit (IC) manufacturing process and without significantly increasing the occupied area beyond that required for a conventional MOS CAP.
    Type: Application
    Filed: October 12, 2010
    Publication date: February 3, 2011
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Tahir A. Khan, Amitava Bose, Vishnu K. Khemka, Ronghua Zhu
  • Patent number: 7880200
    Abstract: A semiconductor device and production method is disclosed. In one embodiment, the semiconductor device includes a first electrode and a second electrode, located on surfaces of a semiconductor body, and an insulated gate electrode. The semiconductor body has a contact groove for the first electrode in an intermediate oxide layer. Highly doped zones of a first conduction type are located in edge regions of the source connection zone. Below the highly doped zones of the first conduction type, there are highly doped zones of a body zone with a complementary conduction type. In a central region of the source connection zone, the body zone has a net charge carrier concentration with a complementary conduction type which is lower than the charge carrier concentration in the edge regions of the source connection zone.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: February 1, 2011
    Assignee: Infineon Technologies Austria AG
    Inventors: Frank Hille, Carsten Schaeffer, Frank Pfirsch, Holger Ruething
  • Publication number: 20110018044
    Abstract: A semiconductor device includes a MOSFET, and a plurality of stress layers disposed on the MOSFET, wherein the stress layers include a first stress layer disposed on the MOSFET and a second stress layer disposed on the first stress layer, the first stress layer has a first stress and the second stress layer has a second stress, and the first stress is different from the second stress.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 27, 2011
    Inventors: HA-JIN LIM, Pan-Kwi Park, Dong-Suk Shin
  • Publication number: 20110012880
    Abstract: In at least one embodiment, a TFT includes: a first capacitor formed of a first capacitor electrode connected to a source electrode and a second capacitor electrode; a second capacitor formed of a third capacitor electrode and a fourth capacitor electrode; a first lead-out line; a second lead-out line connected to a gate electrode; a third lead-out line; a fourth lead-out line; a first interconnection; and a second interconnection. This realizes a TFT which can be easily saved from being a defective product even if leakage occurs in a capacitor connected to a TFT body section.
    Type: Application
    Filed: January 27, 2009
    Publication date: January 20, 2011
    Inventors: Shinya Tanaka, Tetsuo Kikuchi, Hajime Imai, Hideki Kitagawa, Yoshiharu Kataoka
  • Patent number: 7867861
    Abstract: A method for fabricating a semiconductor device including implanting a selected material at a desired target depth below a surface of a silicon substrate, performing an annealing process to create a band of precipitates formed from the selected material and the silicon of the silicon substrate at the desired target depth, and forming a source region and a drain region in the substrate such that a channel region there between is positioned above the band of precipitates, wherein the desired target depth is such that a desired separation distance is achieved between the channel region and the band of precipitates, and wherein an average lattice constant of the band of precipitates is different from the average lattice constant of the silicon substrate so as to cause a stress in the channel region.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: January 11, 2011
    Assignee: Infineon Technologies AG
    Inventors: Luis-Felipe Giles, Rainer Liebmann, Chris Stapelmann