Including Insulator On Semiconductor, E.g. Soi (silicon On Insulator) (epo) Patents (Class 257/E27.112)
  • Publication number: 20130075818
    Abstract: A semiconductor device and method for fabricating a semiconductor device is disclosed. An exemplary semiconductor device includes a substrate and a 3D structure disposed over the substrate. The semiconductor device further includes a dielectric layer disposed over the 3D structure, a WFMG layer disposed over the dielectric layer, and a gate structure disposed over the WFMG layer. The gate structure traverses the 3D structure and separates a source region and a drain region of the 3D structure. The source and drain region define a channel region therebetween. The gate structure induces a stress in the channel region.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tsung-Lin Lee, Feng Yuan, Chih Chieh Yeh, Clement Hsingjen Wann
  • Patent number: 8405090
    Abstract: A semiconductor device with high reliability is provided using an SOI substrate. When the SOI substrate is fabricated by using a technique typified by SIMOX, ELTRAN, or Smart-Cut, a single crystal semiconductor substrate having a main surface (crystal face) of a {110} plane is used. In such an SOI substrate, adhesion between a buried insulating layer as an under layer and a single crystal silicon layer is high, and it becomes possible to realize a semiconductor device with high reliability.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: March 26, 2013
    Assignee: Semiconductor Energy Labortory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hisashi Ohtani
  • Publication number: 20130062696
    Abstract: The present invention provides an SOI semiconductor structure with a hybrid of coplanar germanium (Ge) and III-V, and a method for preparing the same. A heterogeneous integrated semiconductor structure with a hybrid of Ge and the group III-V semiconductor material coplanar on an insulator includes at least one Ge substrate formed on the insulating layer, and the other substrate is a group III-V semiconductor material formed on the Ge semiconductor.
    Type: Application
    Filed: May 16, 2012
    Publication date: March 14, 2013
    Applicant: SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: Zengfeng Di, Jiantao Bian, Miao Zhang, Xi Wang
  • Publication number: 20130063329
    Abstract: A purpose of the present invention is to reduce the driving voltage of a semiconductor device that includes an n-type TFT and a p-type TFT. Disclosed is a semiconductor device in which an n-channel type first thin film transistor (100) and a p-channel type second thin film transistor (200) are provided on the plane of a substrate (1). A first semiconductor layer (11) of the first thin film transistor (100) has a main portion, which is sandwiched between the upper surface and the lower surface of the first semiconductor layer (11), and an slanted portion, which is sandwiched by the side face and the lower surface of the first semiconductor layer (11). A second semiconductor layer (20) has a main portion, which is sandwiched between the upper surface and the lower surface of the second semiconductor layer (20), and a slanted portion, which is sandwiched between the side face and the lower surface of the second semiconductor layer (20).
    Type: Application
    Filed: February 10, 2011
    Publication date: March 14, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hajime Saitoh, Naoki Makita
  • Patent number: 8395216
    Abstract: A semiconductor apparatus includes a first substrate and a second substrate located over a first portion of the first substrate and separated from the first substrate by a buried layer. The semiconductor apparatus also includes an epitaxial layer located over a second portion of the first substrate and isolated from the second substrate. The semiconductor apparatus further includes a first transistor formed at least partially in the second substrate and a second transistor formed at least partially in or over the epitaxial layer. The second substrate and the epitaxial layer have bulk properties with different electron and hole mobilities. At least one of the transistors is configured to receive one or more signals of at least about 5V. The first substrate could have a first crystalline orientation, and the second substrate could have a second crystalline orientation.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: March 12, 2013
    Assignee: Texas Instruments Incorporated
    Inventor: Alexander H. Owens
  • Patent number: 8395217
    Abstract: A semiconductor device structure having an isolation region and method of manufacturing the same are provided. The semiconductor device structure includes a silicon-on-insulator (SOI) substrate. A plurality of gates is formed on the SOI substrate. The semiconductor device structure further includes trenches having sidewalls, formed between each of the plurality of gates. The semiconductor device structure further includes an epitaxial lateral growth layer formed in the trenches. The epitaxial lateral growth layer is grown laterally from the opposing sidewalls of the trenches, so that the epitaxial lateral growth layer encloses a portion of the trenches extended into the SOI substrate. The epitaxial lateral growth layer is formed in such way that it includes an air gap region overlying a buried dielectric layer of the SOI substrate.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: March 12, 2013
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Joseph Ervin, Jeffrey B. Johnson, Pranita Kulkarni, Kevin McStay, Paul C. Parries, Chengwen Pei, Geng Wang, Yanli Zhang
  • Publication number: 20130056827
    Abstract: A non-planar semiconductor structure includes a substrate, at least two fin-shaped structures, at least an isolation structure, and a plurality of epitaxial layers. The fin-shaped structures are located on the substrate. The isolation structure is located between the fin-shaped structures, and the isolation structure has a nitrogen-containing layer. The epitaxial layers respectively cover a part of the fin-shaped structures and are located on the nitrogen-containing layer. A non-planar semiconductor process is also provided for forming the semiconductor structure.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 7, 2013
    Inventors: Shih-Hung Tsai, Chien-Ting Lin, Chin-Cheng Chien, Chin-Fu Lin, Chih-Chien Liu, Teng-Chun Tsai, Chun-Yuan Wu
  • Publication number: 20130057793
    Abstract: In each pixel, an insulating film covering each oxide semiconductor layer is placed between an upper electrode of a storage capacitance element and two source wiring lines that have the upper electrode therebetween. The upper electrode is formed of a conductor layer portion that extends from the oxide semiconductor layer and that has a low resistance, and is thereby integrally formed with the oxide semiconductor layer. Both of the source wiring lines are provided on the insulating film and are connected to the oxide semiconductor layer through contact holes formed in the insulating film.
    Type: Application
    Filed: February 1, 2011
    Publication date: March 7, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Seiichi Uchida
  • Publication number: 20130049116
    Abstract: The present disclosure provides a semiconductor device and a method for manufacturing the same. The semiconductor device comprises: an SOI wafer comprising a semiconductor substrate, an insulating buried layer, and a semiconductor layer, wherein the insulating buried layer is disposed on the semiconductor substrate, and the semiconductor layer is disposed on the insulating buried layer; adjacent MOSFETs formed in the SOI wafer, wherein each of the adjacent MOSFETs comprises a back gate formed in the semiconductor substrate and a back gate isolation region formed under the back gate; and a shallow trench isolation, wherein the shallow trench isolation is formed between the adjacent MOSFETs to isolate the adjacent MOSFETs from each other, wherein a PN junction is formed between the back gate and the back gate isolation region of each of the adjacent MOSFETs. According to embodiments of the present disclosure, a PN junction is formed between the back gate isolation regions of the adjacent MOSFETs.
    Type: Application
    Filed: November 18, 2011
    Publication date: February 28, 2013
    Inventors: Huilong Zhu, Qingqing Liang, Zhijiong Luo, Haizhou Yin
  • Publication number: 20130049119
    Abstract: The present invention provides a multi-working voltages CMOS device with single gate oxide layer thickness, gate work functions of CMOS transistors are regulated by implanting ions with different work functions into metal oxide dielectric material layers of the CMOS transistors, thus to realize different flat-band voltages under the condition of single dielectric layer thickness, and realize a multi-working voltages CMOS structure under the condition of single dielectric layer thickness. The present invention overcomes the process complexity of multiple kinds of gate dielectric layer thicknesses needed by traditional multi-working voltages CMOS, simplifies the CMOS process, makes the manufacturing procedure simple and easy to execute, reduces the preparation cost and is suitable for industrial production.
    Type: Application
    Filed: December 29, 2011
    Publication date: February 28, 2013
    Applicant: SHANGHAI HUALI MICROELECTRONICS CORPORATION
    Inventors: Xiaolu HUANG, Gang MAO, Yuwen CHEN, Xinyun XIE
  • Patent number: 8384196
    Abstract: Methods and structures are provided for formation of devices on substrates including, e.g., lattice-mismatched materials, by the use of aspect ratio trapping and epitaxial layer overgrowth. A method includes forming an opening in a masking layer disposed over a substrate that includes a first semiconductor material. A first layer, which includes a second semiconductor material lattice-mismatched to the first semiconductor material, is formed within the opening. The first layer has a thickness sufficient to extend above a top surface of the masking layer. A second layer, which includes the second semiconductor material, is formed on the first layer and over at least a portion of the masking layer. A vertical growth rate of the first layer is greater than a lateral growth rate of the first layer and a lateral growth rate of the second layer is greater than a vertical growth rate of the second layer.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 26, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Zhiyuan Cheng, James Fiorenza, Jennifer M. Hydrick, Anthony J. Lochtefeld, Ji-Soo Park, Jie Bai, Jizhong Li
  • Publication number: 20130043535
    Abstract: A method for isolation region fabrication for replacement gate integrated circuit (IC) processing includes forming a plurality of dummy gates on a substrate; forming a block mask over the plurality of dummy gates, such that the block mask selectively exposes a dummy gate of the plurality of dummy gates; removing the exposed dummy gate to form an isolation region recess corresponding to the removed dummy gate; filling the isolation region recess with an insulating material to form an isolation region; removing the block mask to expose a remaining plurality of dummy gates; and performing replacement gate processing on the remaining plurality of dummy gates to form a plurality of active devices, wherein at least two of the plurality of active devices are electrically isolated from each other by the isolation region.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brent A. Anderson, Edward J. Nowak
  • Publication number: 20130043536
    Abstract: One embodiment relates to a buffered transistor device. The device includes a buffered vertical fin-shaped structure formed in a semiconductor substrate. The vertical fin-shaped structure includes at least an upper semiconductor layer, a buffer region, and at least part of a well region. The buffer region has a first doping polarity, and the well region has a second doping polarity which is opposite to the first doping polarity. At least one p-n junction that at least partially covers a horizontal cross section of the vertical fin-shaped structure is formed between the buffer and well regions. Other embodiments, aspects, and features are also disclosed.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Inventors: Irfan RAHIM, Jeffrey T. WATT, Yanzhong XU, Lin-Shih LIU
  • Patent number: 8378429
    Abstract: A memory cell has N?16 transistors, in which two are access transistors, at least one pair [say (N-2)/2] are pull-up transistors, and at least another pair [say (N-2)/2] are pull-down transistors. The pull-up and pull-down transistors are all coupled between the two access transistors. Each of the access transistors and the pull-up transistors are the same type, p-type or n-type. Each of the pull-down transistors is the other type, p-type or n-type. The access transistors are floating body devices. The pull-down transistors are non-floating body devices. The pull-up transistors may be floating or non-floating body devices. Various specific implementations and methods of making the memory cell are also detailed.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: February 19, 2013
    Assignee: International Business Machines Corporation
    Inventors: Josephine B. Chang, Leland Chang, Steven J. Koester, Jeffrey W. Sleight
  • Publication number: 20130037924
    Abstract: Antenna switch modules and methods of making the same are provided. In certain implementations, an antenna switch module includes a package substrate, an integrated filter, and a silicon on insulator (SOI) die attached to the package substrate. The SOI die includes a capacitor configured to operate in the integrated filter and a multi throw switch for selecting amongst the RF signal paths. In some implementations, a surface mount inductor is attached to the package substrate adjacent the SOI die and is configured to operate in the integrated filter with the capacitor. In certain implementations, the inductor is formed from a conductive layer of the package substrate disposed beneath a layer of the package substrate used to attach the SOI die.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: Jong-Hoon Lee, Chuming Shih
  • Publication number: 20130037905
    Abstract: In a hybrid integrated module, a semiconductor die is mechanically coupled face-to-face to an integrated device in which the substrate has been removed. For example, the integrated circuit may include an optical device fabricated on a silicon-on-insulator (SOI) wafer in which the backside silicon handler has been completely removed, thereby facilitating improved device performance and highly efficient thermal tuning of the operating wavelength of the optical device. Moreover, the semiconductor die may be a VLSI chip that provides power, and serves as a mechanical handler and/or an electrical driver. The thermal tuning efficiency of the substrateless optical device may be enhanced by over 100× relative to an optical device with an intact substrate, and by 5× relative to an optical device in which the substrate has only been removed in proximity to the optical device.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 14, 2013
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Ivan Shubin, Ashok V. Krishnamoorthy, John E. Cunningham
  • Publication number: 20130037886
    Abstract: A semiconductor device includes a semiconductor substrate, at least a first fin structure, at least a second fin structure, a first gate, a second gate, a first source/drain region and a second source/drain region. The semiconductor substrate has at least a first active region to dispose the first fin structure and at least a second active region to dispose the second fin structure. The first/second fin structure partially overlapped by the first/second gate has a first/second stress, and the first stress and the second stress are different from each other. The first/second source/drain region is disposed in the first/second fin structure at two sides of the first/second gate.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Inventors: Teng-Chun Tsai, Chun-Yuan Wu, Chih-Chien Liu, Chin-Cheng Chien, Chin-Fu Lin
  • Patent number: 8373229
    Abstract: An integrated circuit device is disclosed. An exemplary integrated circuit device includes: a semiconductor substrate; a fin structure disposed over the semiconductor substrate; and a gate structure disposed over the base portion of the fin structure. The collector portion is a first doped region including a first type dopant, and is coupled with a first terminal for electrically biasing the collector portion. The emitter portion is a second doped region including the first type dopant, and is coupled with a second terminal for electrically biasing the emitter portion. The base portion is a third doped region including a second type dopant opposite the first type, and is coupled with a third terminal for electrically biasing the base portion. The gate structure is coupled with a fourth terminal for electrically biasing the gate structure, such that the gate structure controls a path of current through the base portion.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: February 12, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Chung Chen, Chewn-Pu Jou, Feng Yuan, Sally Liu
  • Patent number: 8373228
    Abstract: A method of fabricating a semiconductor device with back side conductive plugs is provided here. The method begins by forming a gate structure overlying a semiconductor-on-insulator (SOI) substrate. The SOI substrate has a support layer, an insulating layer overlying the support layer, an active semiconductor region overlying the insulating layer, and an isolation region outboard of the active semiconductor region. A first section of the gate structure is formed overlying the isolation region and a second section of the gate structure is formed overlying the active semiconductor region. The method continues by forming source/drain regions in the active semiconductor region, and thereafter removing the support layer from the SOI substrate. Next, the method forms conductive plugs for the gate structure and the source/drain regions, where each of the conductive plugs passes through the insulating layer.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: February 12, 2013
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Bin Yang, Rohit Pal, Michael Hargrove
  • Publication number: 20130033655
    Abstract: Disclosed is an active matrix substrate (20a) that includes: an insulating substrate (10a); a first thin film transistor (5a) that is formed on the insulating substrate (10a) and that includes a first oxide semiconductor layer (13a) having a first channel region (Ca); a second thin film transistor (5b) that is formed on the insulating substrate (10a) and that includes a second oxide semiconductor layer (13b) having a second channel region (Cb); and an interlayer insulating film (17) that covers the first oxide semiconductor layer (13a) and the second oxide semiconductor layer (13b). A channel protective film (25), which is formed of a material different from that of the interlayer insulating film (17), is provided between the second oxide semiconductor layer (13b) and the interlayer insulating film (17) on the second channel region (Cb) in the second oxide semiconductor layer (13b).
    Type: Application
    Filed: January 12, 2011
    Publication date: February 7, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tadayoshi Miyamoto
  • Patent number: 8367498
    Abstract: A FinFET device and method for fabricating a FinFET device is disclosed. An exemplary method includes providing a semiconductor substrate; forming a fin structure over the semiconductor substrate, the fin structure including a first material portion over the semiconductor substrate and a second material portion over the first material portion; forming a gate structure over a portion of the fin structure, such that the gate structure traverses the fin structure, thereby separating a source region and a drain region of the fin structure, wherein the source and drain regions of the fin structure define a channel therebetween; removing the second material portion from the source and drain regions of the fin structure; and after removing the second material portion, forming a third material portion in the source and drain regions of the fin structure.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: February 5, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hao Chang, Jeff J. Xu
  • Patent number: 8368144
    Abstract: An electronic circuit on a semiconductor substrate having isolated multiple gate field effect transistor circuit blocks is disclosed. In some embodiments, an electronic circuit has a substrate having a buried oxide insulating region. A MuGFET device may be formed above the buried oxide region and coupled to a first source of reference potential. A semiconductor device may be formed above the substrate and coupled to a second source of reference potential. A coupling network may be formed to couple the MuGFET device to the semiconductor device.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: February 5, 2013
    Assignee: Infineon Technologies AG
    Inventors: Franz Kuttner, Gerhard Knoblinger
  • Publication number: 20130026571
    Abstract: A finFET block architecture includes a first set of semiconductor fins having a first conductivity type, and a second set of semiconductor fins having a second conductivity type. An inter-block insulator is placed between outer fins of the first and second sets. A patterned gate conductor layer includes a first plurality of gate traces extending across the set of fins in the first block without crossing the inter-block insulator, and a second plurality of gate traces extending across the set of fins in the second block without crossing the inter-block insulator. Patterned conductor layers over the gate conductor layer are arranged in orthogonal layout patterns, and include an inter-block connector arranged to connect gate traces in the first and second blocks.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: Synopsys, Inc.
    Inventors: JAMIL KAWA, VICTOR MOROZ, DEEPAK SHERLEKAR
  • Publication number: 20130026567
    Abstract: A method and circuit in which the drive strength of a FinFET transistor can be selectively modified, and in particular can be selectively reduced, by omitting the LDD extension formation in the source and/or in the drain of the FinFET. One application of this approach is to enable differentiation of the drive strengths of transistors in an integrated circuit by applying the technique to some, but not all, of the transistors in the integrated circuit. In particular in a SRAM cell formed from FinFET transistors the application of the technique to the pass-gate transistors, which leads to a reduction of the drive strength of the pass-gate transistors relative to the drive strength of the pull-up and pull-down transistors, results in improved SRAM cell performance.
    Type: Application
    Filed: October 8, 2012
    Publication date: January 31, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
  • Publication number: 20130026572
    Abstract: A finFET block architecture suitable for use of a standard cell library, is based on an arrangement including a first set of semiconductor fins in a first region of the substrate having a first conductivity type, and a second set of semiconductor fins in a second region of the substrate, the second region having a second conductivity type. A patterned gate conductor layer including gate traces in the first and second regions, arranged over channel regions of the first and second sets of semiconductor fins is used for transistor gates. Patterned conductor layers over the gate conductor layer are arranged in orthogonal layout patterns, and can include a plurality of floating power buses over the fins in the first and second regions.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: Synopsy, Inc.
    Inventors: JAMIL KAWA, Victor Moroz, Deepak Sherlekar
  • Publication number: 20130026575
    Abstract: Roughly described, an integrated circuit device has formed on a substrate a plurality of transistors including a first subset of at least one transistor and a second subset of at least one transistor, wherein all of the transistors in the first subset have one underlap distance and all of the transistors in the second subset have a different underlap distance. The transistors in the first and second subsets preferably have different threshold voltages, and preferably realize different points on the high performance/low power tradeoff.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: SYNOPSYS, INC.
    Inventors: Victor Moroz, James D. Sproch
  • Patent number: 8362562
    Abstract: In a semiconductor device of a silicon on insulator (SOI) structure having uniform transistor properties, a first distance between a gate electrode forming position of an N type transistor and an end of a P type semiconductor region is greater than a second distance between a gate electrode forming position of the P type transistor and an edge of the N type semiconductor region.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: January 29, 2013
    Assignee: Lapis Semiconductor Co., Ltd.
    Inventor: Masao Okihara
  • Patent number: 8362565
    Abstract: A semiconductor device includes: a semiconductor layer; an element isolation region formed in the semiconductor layer for separation between a memory element part and a logic element part; first and second field-effect transistors formed in the memory element part and having first and second gate electrodes on a first surface side of the semiconductor layer and a second surface side opposite to the first surface, respectively, and having a source and drain region in common with each other; a third field-effect transistor formed in the logic element part and having a third gate electrode on the second surface side; and first and second insulating films formed on the semiconductor layer to cover the first field-effect transistor and the second and third field-effect transistors, respectively. The first field-effect transistor and the second field-effect transistor are fully-depleted field-effect transistors. The first gate electrode and the second gate electrode are electrically connected.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 29, 2013
    Assignee: Sony Corporation
    Inventor: Hideaki Kuroda
  • Publication number: 20130020641
    Abstract: The present invention provides: a display panel substrate that has an excellent boundary surface adhesion between an insulating film and electrodes formed on the substrate, that particularly requires a configuration in which the lower electrode, the insulating film, and an upper electrode are layered on the substrate in this order from the substrate side, and that includes an auxiliary metal wiring for reducing the wiring resistance, where detachment between the lower electrode and the insulating film is sufficiently suppressed when the lower electrode must be made of ITO; a method for manufacturing such a display panel substrate; and a display panel and a display device including such a display panel substrate. A display panel substrate of the present invention has a lower electrode, an insulating film, and an upper electrode layered thereon in this order from the substrate side.
    Type: Application
    Filed: December 17, 2010
    Publication date: January 24, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yasutomo Nishikawa
  • Publication number: 20130020644
    Abstract: A semiconductor device with an SRAM memory cell having improved characteristics. Below an active region in which a driver transistor including a SRAM is placed, an n type back gate region surrounded by an element isolation region is provided via an insulating layer. It is coupled to the gate electrode of the driver transistor. A p well region is provided below the n type back gate region and at least partially extends to a position deeper than the element isolation region. It is fixed at a grounding potential. Such a configuration makes it possible to control the threshold potential of the transistor to be high when the transistor is ON and to be low when the transistor is OFF; and control so as not to apply a forward bias to the PN junction between the p well region and the n type back gate region.
    Type: Application
    Filed: July 22, 2012
    Publication date: January 24, 2013
    Inventors: Katsuyuki HORITA, Toshiaki IWAMATSU, Hideki MAKIYAMA
  • Publication number: 20130020642
    Abstract: A FinFET having spacers with a substantially uniform profile along the length of a gate stack which covers a portion of a fin of semiconductor material formed on a substrate is provided by depositing spacer material conformally on both the fins and gate stack and performing an angled ion impurity implant approximately parallel to the gate stack to selectively cause damage to only spacer material deposited on the fin. Due to the damage caused by the angled implant, the spacer material on the fins can be etched with high selectivity to the spacer material on the gate stack.
    Type: Application
    Filed: September 27, 2012
    Publication date: January 24, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: International Business Machines Corporation
  • Patent number: 8357975
    Abstract: Embodiments of the present invention provide for the removal of excess carriers from the body of active devices in semiconductor-on-insulator (SOI) structures. In one embodiment, a method of fabricating an integrated circuit is disclosed. In one step, an active device is formed in an active layer of a semiconductor-on-insulator wafer. In another step, substrate material is removed from a substrate layer disposed on a back side of the SOI wafer. In another step, an insulator material is removed from a back side of the SOI wafer to form an excavated insulator region. In another step, a conductive layer is deposited on the excavated insulator region. Depositing the conductive layer puts it in physical contact with a body of an active device in a first portion of the excavated insulator region. The conductive layer then couples the body to a contact in a second detached portion of the excavated insulator region.
    Type: Grant
    Filed: April 28, 2012
    Date of Patent: January 22, 2013
    Assignee: IO Semiconductor, Inc.
    Inventors: Michael A. Stuber, Stuart B. Molin, Paul A. Nygaard
  • Publication number: 20130015452
    Abstract: An array substrate including: a gate electrode and a gate insulation layer disposed on a base substrate, the gate insulation layer having a first thickness in a first region and a second thickness in a second region, the first thickness being greater than the second thickness; a semiconductor pattern disposed on the gate insulation layer in the first region, an end portion of the semiconductor pattern having a stepped portion with respect to the gate insulation layer; an ohmic contact pattern disposed on the semiconductor pattern, an end portion of the ohmic contact pattern opposite to a channel portion being aligned with the end portion of the semiconductor pattern; and source and drain electrodes disposed on the ohmic contact pattern, the source and drain electrodes spaced apart from each other and including first and second thin-film transistor patterns.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 17, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin-Il CHOI, Sang-Gab KIM, Yu-Gwang JEONG, Hong-Kee CHIN
  • Publication number: 20130015526
    Abstract: The invention relates to a semiconductor device and a method for manufacturing such a semiconductor device. A semiconductor device according to an embodiment of the invention comprises: a substrate which comprises a base layer, an insulating layer on the base layer, and a semiconductor layer on the insulating layer; and a first transistor and a second transistor formed on the substrate, the first and second transistors being isolated from each other by a trench isolation structure formed in the substrate. Wherein at least a part of the base layer under at least one of the first and second transistors is strained, and the strained part of the base layer is adjacent to the insulating layer. The semiconductor device according to the invention increases the speed of the device and thus improves the performance of the device.
    Type: Application
    Filed: August 9, 2011
    Publication date: January 17, 2013
    Inventors: Qingqing Liang, Huilong Zhu, Huicai Zhong
  • Publication number: 20130015911
    Abstract: Solutions for optimizing a bulk bias across a substrate of an ETSOI device are disclosed. In one embodiment, an apparatus for optimizing a bulk bias across a substrate of an ETSOI device is disclosed, including: a sensing circuit for sensing at least one predetermined circuit parameter; a charging circuit for applying a bias voltage to the substrate of the ETSOI device; and a processing circuit connected to the sensing circuit and the charging circuit, the processing circuit configured to receive an output of the sensing circuit, and adjust the bias voltage applied to substrate of the ETSOI device in response to determining whether the bias voltage deviates from a target amount.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 17, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hayden C. Cranford, JR., Terence B. Hook
  • Patent number: 8354719
    Abstract: A semiconductor device and related fabrication methods are provided. One exemplary fabrication method forms a fin arrangement overlying an oxide layer, where the fin arrangement includes one or more semiconductor fin structures. The method continues by nitriding exposed portions of the oxide layer without nitriding the one or more semiconductor fin structures, resulting in nitrided portions of the oxide layer. Thereafter, a gate structure is formed transversely overlying the fin arrangement, and overlying the exposed portions of the oxide layer. The nitrided portions of the oxide layer substantially inhibit diffusion of oxygen from the oxide layer into the gate structure.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: January 15, 2013
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Kisik Choi, Robert J. Miller
  • Publication number: 20130009245
    Abstract: Semiconductor devices with low junction capacitances and methods of fabrication thereof are described. In one embodiment, a method of forming a semiconductor device includes forming isolation regions in a substrate to form active areas. The sidewalls of the active areas are enclosed by the isolation regions. The isolation regions are recessed to expose first parts of the sidewalls of the active areas. The first parts of the sidewalls of the active areas are covered with spacers. The isolation regions are etched to expose second parts of the sidewalls of the active area, the second parts being disposed below the first parts. The active areas are etched through the exposed second parts of the sidewalls to form lateral openings. The lateral openings are filled with a spin on dielectric.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Hung Chang, Yu-Rung Hsu, Chen-Hua Yu
  • Publication number: 20130009247
    Abstract: It is an object to form a conductive region in an insulating film without forming contact holes in the insulating film. A method is provided, in which an insulating film is formed over a first electrode over a substrate, a first region having many defects is formed at a first depth in the insulating film by adding first ions into the insulating film at a first accelerating voltage; a second region having many defects is formed at a second depth which is different from the first depth in the insulating film by adding second ions into the insulating film at a second accelerating voltage, a conductive material containing a metal element is formed over the first and second regions; and a conductive region which electrically connects the first electrode and the conductive material is formed in the insulating film by diffusing the metal element into the first and second regions.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 10, 2013
    Inventors: Kazuya Hanaoka, Miki Suzuki
  • Patent number: 8350269
    Abstract: Disclosed is a method of forming a semiconductor-on-insulator (SOI) structure on bulk semiconductor starting wafer. Parallel semiconductor bodies are formed at the top surface of the wafer. An insulator layer is deposited and recessed. Exposed upper portions of the semiconductor bodies are used as seed material for growing epitaxial layers of semiconductor material laterally over the insulator layer, thereby creating a semiconductor layer. This semiconductor layer can be used to form one or more SOI devices (e.g., single-fin or multi-fin MUGFET, multiple series-connected single-fin, multi-fin MUGFETs). However, placement of SOI device components in and/or on portions of the semiconductor layer should be predetermined to avoid locations which might impact device performance (e.g., placement of any FET gate on a semiconductor fin formed from the semiconductor layer can be predetermined to avoid interfaces between joined epitaxial semiconductor material sections).
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: January 8, 2013
    Assignee: International Business Machines Corporation
    Inventors: Subramanian S. Iyer, Edward J. Nowak
  • Publication number: 20130001692
    Abstract: A method for controlling the morphology of deposited silicon on a layer of silicon dioxide and semiconductor devices incorporating such deposited silicon are provided. The method comprises the steps of: providing a layer of silicon dioxide; implanting hydrogen ions into the layer of silicon dioxide by plasma source ion implantation; and forming a layer of polycrystalline silicon on the layer of silicon dioxide.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: David L. Chapek
  • Publication number: 20130001689
    Abstract: A textured thin film transistor is comprised of an insulator sandwiched between a textured gate electrode and a semi-conductor. A source electrode and drain electrode are fabricated on a surface of the semi-conductor. The textured gate electrode is fabricated such that a surface is modified in its texture and/or geometry, such modifications affecting the transistor current.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Sanjiv Sambandan, Robert A. Street
  • Patent number: 8344454
    Abstract: An object of the invention is to provide a semiconductor device having improved performance, high reliability, and a reduced chip size, in particular, to provide a semiconductor device having an MOSFET over an SOI substrate capable of maintaining its reliability while controlling the potential of a well below a gate electrode and preventing generation of parasitic capacitance. Generation of parasitic capacitance is prevented by controlling the potential of a well below a gate electrode by using a well contact plug passing through a hole portion formed in a gate electrode wiring. Generation of defects in a gate insulating film is prevented by making use of a gettering effect produced by causing an element isolation region to extend along the gate electrode.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: January 1, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Kyoya Nitta, Yutaka Hoshino
  • Publication number: 20120319229
    Abstract: Integrated circuits having doped bands in a substrate and beneath high-voltage semiconductor-on-insulator (SOI) devices are provided. In one embodiment, the invention provides an integrated circuit comprising: a semiconductor-on-insulator (SOI) wafer including: a substrate; a buried oxide (BOX) layer atop the substrate; and a semiconductor layer atop the BOX layer; a plurality of high voltage (HV) devices connected in series within the semiconductor layer; a doped band within the substrate and below a first of the plurality of HV devices; and a contact extending from the semiconductor layer and through the BOX layer to the doped band.
    Type: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Alan B. Botula, Beth Ann Rainey, Yun Shi
  • Publication number: 20120319204
    Abstract: A triggerable bidirectional semiconductor device has two terminals and at least one gate. The device comprises, within a layer of silicon on insulator, a central semiconductor zone incorporating the at least one gate and comprising a central region having a first conductivity type, two intermediate regions having a second conductivity type respectively arranged on either side of and in contact with the central region, two semiconductor end zones respectively arranged on either side of the central zone, each end zone comprising two end regions having opposite types of conductivity, in contact with the adjacent intermediate region, the two end regions of each end zone being mutually connected electrically in order to form the two terminals of the device.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 20, 2012
    Applicant: STMICROELECTRONICS SA
    Inventors: Thomas Benoist, Philippe Galy, Johan Bourgeat, Frank Jezequel, Nicolas Guitard
  • Patent number: 8334579
    Abstract: An integrated circuit device and method for fabricating the integrated circuit device is disclosed. The integrated circuit device includes a substrate, a diffusion source, and a lightly doped diffusion region in contact with a conductive layer. A junction of the lightly doped diffusion region with the conductive layer forms a Schottky region. An annealing process is performed to form the lightly doped diffusion region. The annealing process causes dopants from the diffusion source (for example, an n-well disposed in the substrate) of the integrated circuit device to diffuse into a region of the substrate, thereby forming the lightly doped diffusion region.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: December 18, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ping Chun Yeh, Der-Chyang Yeh, Chih-Ping Chao
  • Publication number: 20120313169
    Abstract: FIN-FET ICs with adjustable FIN-FET channel widths are formed from a semiconductor layer (42). Fins (36) may be etched from the layer (42) and then some (46) locally shortened or the layer (42) may be locally thinned and then fins (46) of different fin heights etched therefrom. Either way provides fins (46) and FIN-FETs (40) with different channel widths W on the same substrate (24). Fin heights (H) are preferably shortened by implanting selected ions (A, B, C, etc.) through a mask (90, 90?, 94, 94?, 97, 97?) to locally enhance the etch rate of the layer (42) or some of the fins (36). The implant(s) (A, B, C, etc.) is desirably annealed and then differentially etched. This thins part(s) (42-i) of the layer (42) from which the fins (46) are then etched or shortens some of the fins (46) already etched from the layer (42). For silicon, germanium is a suitable implant ion.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 13, 2012
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Jeremy Wahl, Kingsuk Maitra
  • Publication number: 20120313173
    Abstract: Buried implants are used to reduce RF (radio-frequency) coupling in a SOI (Silicon-on-insulator) circuit. These buried implants are located above and/or below the BOX (buried oxide) layer of the SOI circuit. These buried implants may completely enclose the PWELL (P-type well) of an NFET (N-type Field Effect Transistor).
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Carl Dickey, Nathaniel Peachey, Robert Deuchars
  • Publication number: 20120314474
    Abstract: The present invention provides a non-volatile memory cell structure. A first isolation structure is disposed on a substrate and a semiconductor layer is disposed on the first isolation structure to form a silicon on insulator device. A first doping region is made of a portion of the semiconductor layer. A gate is disposed on the first doping region. A gate oxide layer is sandwiched between the first doping region and the gate. A second doping region is disposed within the semiconductor layer and outside the first doping region. A second doping region is in direct contact with the first doping region. A second isolation structure is disposed on the first isolation structure. Further, the second isolation structure surrounds the first doping region and the second doping region. The second isolation structure is also in direct contact with the first doping region and the second doping region.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 13, 2012
    Inventors: Hsin-Ming Chen, Hau-Yan Lu, Shih-Chen Wang, Ching-Sung Yang
  • Patent number: 8329519
    Abstract: Semiconductor devices having improved contact resistance and methods for fabricating such semiconductor devices are provided. These semiconductor devices include a semiconductor device structure and a contact. The contact is electrically and physically coupled to the semiconductor device structure at both a surface portion and a sidewall portion of the semiconductor device structure.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: December 11, 2012
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Zhonghai Shi, David Wu, Mark Michael, Donna Michael, legal representative
  • Patent number: 8330222
    Abstract: A small amount of oxygen is ion-implanted in a wafer surface layer, and then heat treatment is performed so as to form an incomplete implanted oxide film in the surface layer. Thereby, wafer cost is reduced; a pit is prevented from forming in a surface of an epitaxial film; and a slip is prevented from forming in an external peripheral portion of a wafer.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: December 11, 2012
    Assignee: Sumco Corporation
    Inventors: Yoshiro Aoki, Noashi Adachi, Akihiko Endo, Yoshihisa Nonogaki