Including Component Of The Field-effect Type (epo) Patents (Class 257/E27.029)
  • Patent number: 9029921
    Abstract: A two terminal device which can be used for the rectification of the current. Internally it has a regenerative coupling between MOS gates of opposite type and probe regions. This regenerative coupling allows to achieve performance better than that of ideal diode.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 12, 2015
    Assignee: STMicroelectronics International N.V.
    Inventors: Alexei Ankoudinov, Vladimir Rodov
  • Patent number: 9024408
    Abstract: A method of manufacturing double-sided semiconductor die by performing a first plurality of processes to a first side of a wafer and performing a second plurality of processes to a second side of the wafer, thereby forming at least a first semiconductor device on the first side of the wafer and at least a second semiconductor device on the second side of the wafer. The wafer may be cut to form a plurality of die having at least one semiconductor device on each side.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: May 5, 2015
    Assignee: STMicroelectronics, Inc.
    Inventor: Ming Fang
  • Patent number: 8853792
    Abstract: Embodiments of transistors comprise a gate stack overlying a semiconductor material. The gate stack comprises a deposited oxide layer overlying the semiconductor material, an oxygen-diffusion barrier layer overlying the deposited oxide layer, a high-k dielectric layer overlying the oxygen-diffusion barrier layer, and a conductive material (e.g., an oxygen-gettering conductive material) overlying the high-k dielectric layer. When the conductive material is an oxygen-gettering conductive material, the oxygen-diffusion barrier layer prevents diffusion of oxygen from the deposited oxide layer to the oxygen-gettering conductive material.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: October 7, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Murshed M. Chowdhury, James K. Schaeffer
  • Patent number: 8618587
    Abstract: An electronic device employing a graphene layer as a charge carrier layer. The graphene layer is sandwiched between layers that are constructed of a material having a highly ordered crystalline structure and a high dielectric constant. The highly ordered crystalline structure of the layers surrounding the graphene layer has low density of charged defects that can lead to scattering of charge carriers in the graphene layer. The high dielectric constant of the layers surrounding the graphene layer also prevents charge carrier scattering by minimizing interaction between the charge carriers and the changed defects in the surrounding layers. An interracial layer constructed of a thin, non-polar, dielectric material can also be provided between the graphene layer and each of the highly ordered crystalline high dielectric constant layers to minimize charge carrier scattering in the graphene layer through remote interfacial phonons.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: December 31, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: Ernesto E. Marinero, Simone Pisana
  • Patent number: 8618607
    Abstract: One illustrative device disclosed herein includes a continuous active region defined in a semiconducting substrate, first and second transistors formed in and above the continuous active region, each of the first and second transistors comprising a plurality of doped regions formed in the continuous active region, a conductive isolating electrode positioned above the continuous active region between the first and second transistors and a power rail conductively coupled to the conductive isolating electrode.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: December 31, 2013
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Mahbub Rashed, David Doman, Marc Tarabbia, Irene Lin, Jeff Kim, Chinh Nguyen, Steve Soss, Scott Johnson, Subramani Kengeri, Suresh Venkatesan
  • Patent number: 8581339
    Abstract: A bipolar junction transistor and a manufacturing method for the same are provided. The bipolar junction transistor includes a well region, an emitter electrode, a base electrode, a collector electrode, and a conductive layer. The emitter electrode, the base electrode and the collector electrode are separated from each other by the well region. The conductive layer is on the well region between the base electrode and the collector electrode.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: November 12, 2013
    Assignee: Macronix International Co., Ltd.
    Inventors: Chin-Wei Chang, Ching-Lin Chan, Chin-Shien Lu, Ming-Tung Lee, Shuo-Lun Tu
  • Patent number: 8551830
    Abstract: There is provided a small-type semiconductor integrated circuit whose circuit area is small and whose wiring length is short. The semiconductor integrated circuit is constructed in a multi-layer structure and is provided with a first semiconductor layer, a first semiconductor layer transistor formed in the first semiconductor layer, a wiring layer which is deposited on the first semiconductor layer and in which metal wires are formed, a second semiconductor layer deposited on the wiring layer and a second semiconductor layer transistor formed in the second semiconductor layer. It is noted that insulation of a gate insulating film of the first semiconductor layer transistor is almost equal with that of a gate insulating film of the second semiconductor layer transistor and the gate insulating film of the second semiconductor layer transistor is formed by means of radical oxidation or radical nitridation.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: October 8, 2013
    Assignees: Advantest Corporation, National University Corporation Tohoku University
    Inventors: Tadahiro Ohmi, Koji Kotani, Kazuyuki Maruo, Takahiro Yamaguchi
  • Patent number: 8525253
    Abstract: A semiconductor structure including a substrate of semiconductor material of a first type of conductivity; a first semiconductor layer set in direct electrical contact with the substrate on a first side of the substrate; a second semiconductor layer set in direct electrical contact with the substrate on a second side of the substrate; a first active electronic device formed in the first semiconductor layer; and a second active electronic device formed in the second semiconductor layer.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: September 3, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Monica Micciche′, Antonio Giuseppe Grimaldi, Gaetano Bazzano, Nicolò Frazzetto
  • Patent number: 8455959
    Abstract: Electronic apparatus and methods of forming the electronic apparatus include cobalt titanium oxide on a substrate for use in a variety of electronic systems. The cobalt titanium oxide may be structured as one or more monolayers. The cobalt titanium oxide may be formed by a monolayer by monolayer sequencing process such as atomic layer deposition.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: June 4, 2013
    Assignee: Micron Technology, Inc.
    Inventors: Kie Y. Ahn, Leonard Forbes
  • Patent number: 8450810
    Abstract: An ON resistance of a bidirectional switch with a trench gate structure composed of two MOS transistors sharing a common drain is reduced. A plurality of trenches is formed in an N type well layer. Then a P type body layer is formed in every other column of the N type well layer interposed between a pair of the trenches. A first N+ type source layer and a second N+ type source layer are formed alternately in each of a plurality of the P type body layers. A first gate electrode is formed in each of a pair of the trenches interposing the first N+ type source layer, and a second gate electrode is formed in each of a pair of the trenches interposing the second N+ type source layer.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: May 28, 2013
    Assignee: ON Semiconductor Trading, Ltd.
    Inventor: Yasuhiro Takeda
  • Patent number: 8362523
    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: Grant
    Filed: February 1, 2011
    Date of Patent: January 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: SangShin Han
  • Publication number: 20120205741
    Abstract: A design structure is embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes a high resistivity substrate and a buried inductor formed directly in the high resistivity substrate and devoid of an insulating layer therebetween.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 16, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Max G. LEVY, Steven H. VOLDMAN
  • Patent number: 8227842
    Abstract: An electronic device employing a graphene layer as a charge carrier layer. The graphene layer is sandwiched between layers that are constructed of a material having a highly ordered crystalline structure and a high dielectric constant. The highly ordered crystalline structure of the layers surrounding the graphene layer has low density of charged defects that can lead to scattering of charge carriers in the graphene layer. The high dielectric constant of the layers surrounding the graphene layer also prevents charge carrier scattering by minimizing interaction between the charge carriers and the charged defects in the surrounding layers. An interracial layer constructed of a thin, non-polar, dielectric material can also be provided between the graphene layer and each of the highly ordered crystalline high dielectric constant layers to minimize charge carrier scattering in the graphene layer through remote interfacial phonons.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: July 24, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Ernesto E. Marinero, Simone Pisana
  • Publication number: 20120112241
    Abstract: According to one embodiment, a semiconductor device includes a main element and a sense element. The main element is connected between a collector terminal and an emitter terminal. The main element has an insulated gate bipolar transistor structure. The sense element is connected in parallel with the main element via a sense resistor between the collector terminal and the emitter terminal. The sense element has an insulated gate bipolar transistor structure with a feedback capacitance larger than a feedback capacitance of the main element.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 10, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Kenichi MATSUSHITA
  • Publication number: 20120074407
    Abstract: An object is to provide a semiconductor device having a novel structure in which a transistor including an oxide semiconductor and a transistor including a semiconductor material other than an oxide semiconductor are stacked. The semiconductor device includes a first transistor, an insulating layer over the first transistor, and a second transistor over the insulating layer. In the semiconductor device, the first transistor includes a first channel formation region, the second transistor includes a second channel formation region, the first channel formation region includes a semiconductor material different from a semiconductor material of the second channel formation region, and the insulating layer includes a surface whose root-mean-square surface roughness is less than or equal to 1 nm.
    Type: Application
    Filed: February 4, 2011
    Publication date: March 29, 2012
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei YAMAZAKI, Teruyuki FUJII, Ryota IMAHAYASHI, Shinya SASAGAWA, Motomu KURATA, Fumika TAGUCHI
  • Patent number: 8101948
    Abstract: In a switching element using, for the active layer, a carbon nanotube (CNT) dispersed film which can be manufactured at low temperatures, the interaction between the CNT and the surface of the gate insulating film is insufficient. For this reason, a problem of such a switching element is that the amount of CNT fixed in the channel region is insufficient, resulting in insufficient uniformity. In the switching element of the exemplary embodiment, a gate insulating film is formed of a nonconjugated polymer material containing, in the main chain, an aromatic group and a substituted or unsubstituted alkylene or alkyleneoxy group having 2 or more carbon atoms as repeating units. As a result, the interaction between the CNT and the surface of the gate insulating film is enhanced while maintaining the flexibility of the gate insulating film, and the amount of CNT fixed in the channel region can be increased.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 24, 2012
    Assignee: NEC Corporation
    Inventors: Satoru Toguchi, Hiroyuki Endoh
  • Publication number: 20110310684
    Abstract: A semiconductor integrated circuit includes a P-type MOS transistor and two or more N-type MOS transistors connected together in series between a first and a second power supply, an input terminal connected to a gate terminal of the P-type MOS transistor and gate terminals of the two or more N-type MOS transistors, an output terminal which is a connection node between the P-type MOS transistor and one of the two or more N-type MOS transistors connected to the P-type MOS transistor, and one or more capacitors connected to the output terminal. The drive capability of the P-type MOS transistor is higher than the overall drive capability of the two or more N-type MOS transistors connected together in series. Therefore, a semiconductor integrated circuit is provided in which fluctuations in the delay time of a delay circuit caused by variations in transistor characteristics can be reduced.
    Type: Application
    Filed: August 25, 2011
    Publication date: December 22, 2011
    Applicant: PANASONIC CORPORATION
    Inventor: Yoshinobu YAMAGAMI
  • Patent number: 8063443
    Abstract: An MOS-bipolar hybrid-mode LDMOS device has a main gate input and a control gate input wherein the device operates in an MOS mode when both gate inputs are enabled, and operates in a bipolar mode when the main gate input is enabled and the control gate input is disabled. The device can drive the gate of a power MOSFET to deliver the high current required by the power MOSFET while in the bipolar mode, and provide a fully switching between supply voltage and ground to the gate of the power MOSFET while in the MOS mode.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: November 22, 2011
    Assignee: Fairchild Semiconductor Corporation
    Inventor: Jun Cai
  • Patent number: 8018031
    Abstract: The invention realizes low on-resistance and high current flow in a semiconductor device in which a current flows in a thickness direction of a semiconductor substrate. A first MOS transistor having first gate electrodes and first source layers is formed on a front surface of a semiconductor substrate, and a second MOS transistor having second gate electrodes and second source layers is formed on a back surface thereof. A drain electrode connected to the semiconductor substrate, a first source electrode connected to the first source layers, a second source electrode connected to the second source layers, and a first penetration hole penetrating the semiconductor substrate are further formed. A first wiring connecting the first source electrode and the second source electrode is formed in the first penetration hole. The semiconductor substrate serves as a common drain region of the first and second MOS transistors.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: September 13, 2011
    Assignees: Semiconductor Components Industries, LLC, SANYO Semiconductor Co., Ltd.
    Inventor: Masamichi Yanagida
  • Patent number: 8008667
    Abstract: A semiconductor device includes a first semiconductor layer and a first semiconductor element located in the first semiconductor layer. The semiconductor device also includes a second semiconductor layer of a transparent semiconductor material. The second semiconductor layer is disposed on the first semiconductor layer covering the first semiconductor element. The semiconductor device also includes a second semiconductor element located in the second semiconductor layer. The semiconductor device also includes a wire extending within the second semiconductor layer and electrically connecting the first and second semiconductor elements.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: August 30, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hidetoshi Koyama, Yoshitaka Kamo
  • Patent number: 7989899
    Abstract: A transistor, an inverter including the transistor, and methods of manufacturing the inverter and the transistor. A gate insulating layer of the transistor has a charge trap region. A threshold voltage may be moved in a positive (+) direction by trapping charges in the charge trap region. The transistor may be an enhancement mode oxide thin-film transistor (TFT) and may be used as an element of the inverter.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huaxiang Yin, Ihun Song, Sunil Kim, Youngsoo Park
  • Publication number: 20110156143
    Abstract: This invention published a parasitic vertical PNP bipolar transistor in BiCMOS (Bipolar Complementary Metal Oxide Semiconductor) process; the bipolar transistor comprises a collector, a base and an emitter. Collector is formed by active region with p-type ion implanting layer. It connects a p-type buried layer which formed in the bottom region of STI (Shallow Trench Isolation). The collector terminal connection is through the p-type buried layer and the adjacent active region. The base is formed by active region with n type ion implanting which is on the collector. Its connection is through the original p-type epitaxy layer after converting to n-type. The emitter is formed by the p-type epitaxy layer on the base region with heavy p-type doped. This invention also comprises the fabrication method of this parasitic vertical PNP bipolar in BiCMOS (Bipolar Complementary Metal Oxide Semiconductor) process.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 30, 2011
    Inventors: Tzuyin CHIU, TungYuan Chu, Wensheng Qian, YungChieh Fan, Donghua Liu, Jun Hu
  • Publication number: 20110079821
    Abstract: A method of fabricating an integrated circuit on a compound semiconductor III-V wafer including at least two different types of active devices by providing a substrate; growing a first epitaxial structure on the substrate; growing a second epitaxial structure on the first epitaxial structure; and processing the epitaxial structures to form different types of active devices, such as HBTs and FETs.
    Type: Application
    Filed: December 9, 2010
    Publication date: April 7, 2011
    Applicant: Emcore Corporation
    Inventors: Paul Cooke, Richard W. Hoffman, Victor Labyuk, Sherry Qianwen Ye
  • Patent number: 7888712
    Abstract: A semiconductor device includes a first conductive type SiC semiconductor substrate; a second conductive type well formed on the SiC semiconductor substrate; a first impurity diffusion layer formed by introducing a first conductive type impurity so as to be partly overlapped with the well in a region surrounding the well; a second impurity diffusion layer formed by introducing the first conductive type impurity in a region spaced apart for a predetermined distance from the impurity diffusion layer in the well; and a gate electrode opposed to a channel region between the first and the second impurity diffusion layers with gate insulating film sandwiched therebetween.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: February 15, 2011
    Assignee: Rohm Co., Ltd.
    Inventor: Mineo Miura
  • Patent number: 7851872
    Abstract: An integrated circuit comprises a first source, a first drain, a second source, a first gate arranged between the first source and the first drain, and a second gate arranged between the first drain and the second source. The first and second gates define alternating first and second regions in the drain. The first and second gates are arranged farther apart in the first regions than in the second regions.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: December 14, 2010
    Assignee: Marvell World Trade Ltd.
    Inventor: Sehat Sutardja
  • Patent number: 7781842
    Abstract: A semiconductor device which has a semiconductor body and a method for producing it. At the semiconductor body, a first electrode which is electrically connected to a first near-surface zone of the semiconductor body and a second electrode which is electrically connected to a second zone of the semiconductor body are arranged. A drift section is arranged between the first and the second electrode. In the drift section, a coupling structure is provided for at least one field plate arranged in the drift section. The coupling structure has a floating first area doped complementarily to the drift section and a second area arranged in the first area. The second area forms a locally limited punch-through effect or an ohmic contact to the drift section, and the field plate is electrically connected at least to the second area.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: August 24, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Franz Hirler, Elmar Falck, Hans-Joachim Schulze
  • Patent number: 7772656
    Abstract: A semiconductor device. The device including: a planar FET formed in a single crystal-silicon substrate, the FET comprising a first channel region, first and second source drains on opposite sides of the first channel region and a gate, the gate over the channel region and electrically isolated from the channel region by a first gate dielectric layer; and a FinFET formed in single crystal silicon block on top of and electrically isolated from the substrate, the FinFET comprising a second channel region, third and fourth source drains on opposite first and second ends of a second channel region and the gate, the gate electrically isolated from the second channel region by a second gate dielectric layer.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: August 10, 2010
    Assignee: International Business Machines Corporation
    Inventors: Brent Alan Anderson, Bryant Andres, William F. Clark, Jr., Edward Joseph Nowak
  • Publication number: 20100007316
    Abstract: A current sense device for a power transistor is described. The power transistor is formed in a cellular structure including a cellular array of transistor cells. The current sense device includes multiple transistor cells in the cellular array of transistor cells of the power transistor being used as sense transistor cells. The sense transistor cells are evenly distributed throughout the cellular array where the source terminal of each sense transistor cell is electrically connected to a first node through a metal line in the first metal layer and through a metal line in the second metal layer where the metal lines are electrically isolated from the metal lines connecting the transistor cells of the power transistor. The sense transistor cells measure a small portion of the current flowing through the power transistor based on the size ratio of the current sense device and the power transistor.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 14, 2010
    Applicant: Micrel, Inc.
    Inventors: Ira G. Miller, Eduardo Velarde
  • Publication number: 20090108346
    Abstract: An MOS-bipolar hybrid-mode LDMOS device has a main gate input and a control gate input wherein the device operates in an MOS mode when both gate inputs are enabled, and operates in a bipolar mode when the main gate input is enabled and the control gate input is disabled. The device can drive the gate of a power MOSFET to deliver the high current required by the power MOSFET while in the bipolar mode, and provide a fully switching between supply voltage and ground to the gate of the power MOSFET while in the MOS mode.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 30, 2009
    Inventor: Jun Cai
  • Patent number: 7521750
    Abstract: A nonvolatile semiconductor device includes a pair of multi-bit nonvolatile memory unit cells. Each unit cell includes a grid type semiconductor body in which a plurality of parallel semiconductor bodies extend in a first direction and a plurality of parallel semiconductor bodies extend in a second direction perpendicular to the first direction, a channel region formed in a partial region of the semiconductor body along circumferences of the semiconductor bodies that extend in the first direction, a charge storage region formed on the channel region, a plurality of control gates, which are formed on the charge storage region and wherein each of the plurality of control gates is adapted to receive separate control voltages. Each unit cell further includes source and drain regions aligned on both sides of the plurality of control gates and formed in the semiconductor bodies, wherein the pair of unit cells share the source region, and the source region is formed at a cross point of the grid.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: April 21, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bo-Young Seo, Hee-Seog Jeon, Sung-Taeg Kang
  • Publication number: 20090050961
    Abstract: A semiconductor device is disclosed which has a shorter turn-on time. The semiconductor device includes an epitaxial layer, two base regions embedded in a surface portion of the epitaxial layer, source regions respectively embedded in the base regions, a drain region including at least a portion of the epitaxial layer excluding the base regions, and a gate electrode provided on the epitaxial layer with the intervention of an insulation film with ends thereof respectively opposed to surfaces of the two base regions. The drain region is arranged so that depletion layers respectively extending from boundaries between the drain region and the two base regions are connected to each other in an OFF state in a portion of the drain region located between the two base regions.
    Type: Application
    Filed: April 11, 2006
    Publication date: February 26, 2009
    Applicant: ROHM CO., LTD.
    Inventor: Masaru Takaishi
  • Publication number: 20080265329
    Abstract: A semiconductor device which has a semiconductor body and a method for producing it. At the semiconductor body, a first electrode which is electrically connected to a first near-surface zone of the semiconductor body and a second electrode which is electrically connected to a second zone of the semiconductor body are arranged. A drift section is arranged between the first and the second electrode. In the drift section, a coupling structure is provided for at least one field plate arranged in the drift section. The coupling structure has a floating first area doped complementarily to the drift section and a second area arranged in the first area. The second area forms a locally limited punch-through effect or an ohmic contact to the drift section, and the field plate is electrically connected at least to the second area.
    Type: Application
    Filed: April 30, 2008
    Publication date: October 30, 2008
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Franz Hirler, Elmar Falck, Hans-Joachim Schulze
  • Publication number: 20080180160
    Abstract: A dual gate drain extension field effect transistor assembly comprises a first FET device having a source, a gate and a drain extension region. The first FET device's gate is electrically coupled to a constant voltage source. A second FET device has a source, a drain, and a gate, and the second FET's drain is electrically to the first FET's source.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Applicant: INFINEON TECHNOLOGIES AG
    Inventor: Andreas Augustin
  • Publication number: 20080122008
    Abstract: A memory cell includes diffusion regions formed in a substrate. Each of the diffusion regions extends along a vertical direction in a layout view at a substrate level. A first gate electrode structure at a gate electrode level is generally dogleg shaped. The first gate electrode structure extends in an oblique direction, turns to a horizontal direction, extends over and crosses the diffusion regions in the horizontal direction. A first contact structure at a contact level is generally rectangular shaped in the layout view of the cell. The first contact structure electrically connects a first source/drain region of the first diffusion region to the first gate electrode structure and the first source/drain region of the second diffusion region. The first contact structure extends from the first source/drain region of the first diffusion region to the first source/drain region of the second diffusion region at the contact level.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 29, 2008
    Inventors: Uwe Paul Schroeder, Martin Ostermayr
  • Publication number: 20080061323
    Abstract: A wireless sensor chip suitable for the compact, high-sensitive, and low-cost examination apparatus for easily examining a biological material such as gene at low cost is provided. A sensor chip is formed on an SOI substrate, and an n type semiconductor layer on which a PMOS transistor is formed and a p type semiconductor layer on which an nMOS transistor is formed are isolated by a pn junction. Therefore, the p type semiconductor layer at the outermost portion (chip edge portion to be in contact with solution) is set to floating, and the maximum potential and the minimum potential of the chip are supplied to an n type semiconductor layer and a p type semiconductor layer inside the outermost portion, respectively. Also, the chip is covered with an ion impermeable insulating film for reducing the penetration of positive ions through the oxide layer.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 13, 2008
    Inventors: Yoshiaki Yazawa, Kazuki Watanabe, Masao Kamahori, Yukinori Kunimoto
  • Patent number: 7235829
    Abstract: A semiconductor integrated circuit device includes a semiconductor region of a first conductivity type. A first insulated-gate field effect transistor having a source/drain region of a second conductivity type connected to an output terminal is formed on the semiconductor region. Further, a semiconductor region of a second conductivity type connected to the gate of the transistor is formed adjacent to the source/drain region of the transistor on the semiconductor region.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: June 26, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Makoto Takizawa
  • Patent number: 7224021
    Abstract: The present invention relates to an FET device having a conductive gate electrode with angled sidewalls. Specifically, the sidewalls of the FET device are offset from the vertical direction by an offset angle that is greater than about 0° and not more than about 45°. In such a manner, such conductive gate electrode has a top surface area that is smaller than its base surface area. Preferably, the FET device further comprises source/drain metal contacts that are also characterized by angled sidewalls, except that the offset angle of the source/drain metal contacts are arranged so that the top surface area of each metal contact is larger than its base surface area. The FET device of the present invention has significantly reduced gate to drain metal contact overlap capacitance, e.g., less than about 0.07 femtoFarads per micron of channel width, in comparison with conventional FET devices having straight-wall gate electrodes and metal contacts.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: May 29, 2007
    Assignee: International Business Machines Corporation
    Inventors: Dureseti Chidambarrao, Lawrence A. Clevenger, Omer H. Dokumaci, Kaushik A. Kumar, Huilong Zhu