Semiconductor Islands Formed Upon Insulating Substrate Or Layer (e.g., Mesa Formation, Etc.) Patents (Class 438/164)
  • Patent number: 7745269
    Abstract: An object is to provide an element structure of a semiconductor device for increasing an etching margin for various etching steps and a method for manufacturing the semiconductor device having the element structure. An island-shaped semiconductor layer is provided over an insulator having openings. The island-shaped semiconductor layer includes embedded semiconductor layers and a thin film semiconductor layer. The embedded semiconductor layers have a larger thickness than that of the thin film semiconductor layer.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: June 29, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hideki Matsukura
  • Patent number: 7741204
    Abstract: Certain embodiments of the present invention are directed to a method of fabricating a mixed-scale electronic interface. A substrate is provided with a first set of conductive elements. A first layer of nanowires may be formed over the first set of conductive elements. A number of channels may be formed, with each of the channels extending diagonally through a number of the nanowires of the first layer. A number of pads may be formed, each of which is electrically interconnected with an underlying conductive element of the first set of conductive elements and one or more adjacent nanowires of the first layer of nanowires. The pads and corresponding electrically interconnected nanowires define a number of pad-interconnected-nanowire-units. Additional embodiments are directed to a method of forming a nanoimprinting mold and a method of selectively programming nanowire-to-conductive element electrical connections.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: June 22, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhiyong Li, Warren Robinett
  • Patent number: 7736959
    Abstract: There are many inventions described and illustrated herein. In a first aspect, the present invention is directed to integrated circuit device including SOI logic transistors and SOI memory transistors, and method for fabricating such a device. In one embodiment, integrated circuit device includes memory portion having, for example, PD or FD SOI memory cells, and logic portion having, for example, high performance transistors, such as Fin-FET, multiple gate transistors, and/or non-high performance transistors (such as single gate transistors that do not possess the performance characteristics of the high performance transistors). In another aspect, the present invention is directed to a method of manufacture of such integrated circuit device.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: June 15, 2010
    Assignee: Innovative Silicon ISi SA
    Inventor: Pierre Fazan
  • Publication number: 20100144102
    Abstract: A method for forming a semiconductor device is provided. The method comprises providing a semiconductor structure comprising a semiconductor substrate and a dielectric layer on the semiconductor substrate, wherein the dielectric layer has an opening through which the semiconductor substrate is exposed; forming a semiconductor strip on the dielectric layer and adjacent the opening, wherein the semiconductor strip is electrically isolated from the semiconductor substrate; forming a gate dielectric over a portion of the semiconductor strip that is over the dielectric layer; forming a gate electrode over the gate dielectric; and forming a source/drain region in the semiconductor strip.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 10, 2010
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ka-Hing Fung, Carlos H. Diaz
  • Patent number: 7732267
    Abstract: A flat panel display device (FPD) and fabricating method thereof are disclosed, which reduce the number of masks during fabrication and prevent electro-chemical corrosion problems. In the FPD, a cell area and a pad area are defined on a substrate. A storage electrode traverses an active layer in parallel to a gate line. Source and drain regions of the active layer in the vicinity of both sides of a gate electrode are not formed below the storage electrode. An insulating interlayer over the substrate has first and second contact holes on the source and drain regions, respectively. A source electrode contacts the source region via a first contact hole and a drain electrode contacts the drain region via a second contact hole to directly contact a pixel electrode. A protective layer is disposed over the substrate including the pixel electrode.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: June 8, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: Hun Jeoung, Soon Kwang Hong
  • Publication number: 20100133544
    Abstract: A thin film transistor (TFT) includes a poly-silicon island, a gate insulating layer, a gate stack layer, and a dielectric layer. The poly-silicon island includes a source region and a drain region. The gate insulating layer covers the poly-silicon island. The gate stack layer is disposed on the gate insulating layer and includes a first conductive layer and a second conductive layer. A length of the first conductive layer is less than a length of the second conductive layer. The dielectric layer covers the gate insulating layer and the gate stack layer, and therefore a number of cavities are formed between the second conductive layer and the gate insulating layer.
    Type: Application
    Filed: February 6, 2009
    Publication date: June 3, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Ta-Chuan Liao, Huang-Chung Cheng, Ya-Hsiang Tai, Szu-Fen Chen
  • Patent number: 7727826
    Abstract: Disclosed herein is a method for manufacturing a semiconductor device that includes forming a gate pattern on a substrate having a stacked structure including a lower silicon layer, an insulating layer, and an upper silicon layer. The method further includes forming spacers on sidewalls of the gate pattern. Still further, the method includes etching the upper silicon layer using the gate pattern as a mask to form a floating body and expose a portion of the insulating layer. The method further includes depositing a conductive layer over the gate pattern and exposed insulating layer, and performing a thermal process on the conductive layer to form a source/drain region in the floating body.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: June 1, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Joong Sik Kim, Sung Woong Chung
  • Patent number: 7723167
    Abstract: In a laser annealing process: a bandlike area of a nonmonocrystalline semiconductor film is scanned and irradiated with continuous-wave laser light so as to produced fused regions in the first to third sections of the bandlike area as follows, where the third section contains a portion required to have higher crystallinity than other portions of the bandlike area. First, a first fused region having a substantially uniform width is formed in the first section. Then, at least a portion of the first fused region which is last fused is solidified, and thereafter at least a subportion of the solidified portion having a smaller width than the first fused region is re-fused. Subsequently, a second fused region having a stepwise or continuously increasing width is produced in the second section, and then a third fused region substantially uniformly having the increased width is produced in the third section.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: May 25, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Atsushi Tanaka
  • Patent number: 7718465
    Abstract: A semiconductor device and process for producing same are provided. The process for producing a semiconductor device includes a first embossing step of pressing a stamp having a relief pattern onto a surface of a substrate to form a depression pattern on the surface of the substrate; a second step of feeding an application material composed of a semiconductor material or a conductive material into the depression pattern by printing; and a third step of curing the application material fed by printing.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: May 18, 2010
    Assignee: Sony Corporation
    Inventor: Kazumasa Nomoto
  • Patent number: 7718478
    Abstract: To provide a manufacturing method for a field-effect transistor, such as a thin-film transistor, enabling reductions in the number patterning steps and the number of photomasks and improvements in the throughput and the yield. In the method, an oxide film is formed by processing the surface of a crystalline semiconductor with ozone water or hydrogen peroxide water. Using the oxide film thus formed as an etch stop, a gate electrode, a source electrode, and a drain electrode of the field-effect transistor are simultaneously formed from a same starting film in one patterning step by use of one photomask. After forming the gate electrode, the source electrode, and the drain electrode, heating is performed thereon at 800° C. or higher for a predetermined time. Thereby, the contact resistances between the source electrode and the crystalline semiconductor and between the drain electrode and the crystalline semiconductor are reduced, whereby improving the electrical conductivity.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: May 18, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Tatsuya Arao
  • Patent number: 7719059
    Abstract: A fin field effect transistor arrangement comprises a substrate and a first fin field effect transistor on and/or in the substrate. The first fin field effect transistor includes a fin in which a channel region is formed between a first source/drain region and a second source/drain region and above which a gate region is formed. A second fin field effect transistor is provided on and/or in the substrate including a fin in which a channel region is formed between a first source/drain region and a second source/drain region and above which a gate region is formed. The second fin field effect transistor is arranged laterally alongside the first fin field effect transistor, wherein a height of the fin of the first fin field effect transistor is greater than a height of the fin of the second fin field effect transistor.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: May 18, 2010
    Assignee: Infineon Technologies AG
    Inventors: Franz Hofmann, Erhard Landgraf, Richard Johannes Luyken
  • Patent number: 7709308
    Abstract: Disclosed is a semiconductor device and method of fabricating the same. The device is disposed on a substrate, including a fin constructed with first and second sidewalls, a first gate line formed in the pattern of spacer on the first sidewall of the fin, and a second gate line formed in the pattern of spacer on the second sidewall of the fin. First and second impurity regions are disposed in the fin. The first and second impurity regions are isolated from each other and define a channel region in the fin between the first and second gate lines.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: May 4, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Woo Oh, Ki-Whan Song
  • Patent number: 7709307
    Abstract: A nonvolatile memory cell is disclosed, having first and second semiconductor islands at the same horizontal level and spaced a predetermined distance apart, the first semiconductor island providing a control gate and the second semiconductor island providing source and drain terminals; a gate dielectric layer on at least part of the first semiconductor island; a tunneling dielectric layer on at least part of the second semiconductor island; a floating gate on at least part of the gate dielectric layer and the tunneling dielectric layer; and a metal layer in electrical contact with the control gate and the source and drain terminals. In one advantageous embodiment, the nonvolatile memory cell may be manufactured using an “all-printed” process technology.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: May 4, 2010
    Assignee: Kovio, Inc.
    Inventors: Arvind Kamath, Patrick Smith, James Montague Cleeves
  • Patent number: 7709306
    Abstract: A method for forming an electronic device including at least one electrically conductive and one semiconductive material deposited from solution, the method comprising: forming on the substrate a confinement structure consisting of a least a first zone and a second zone, depositing the electrically conductive material on the substrate, wherein the electrically conductive material is absent from both the first and second zone, and subsequently depositing the electrically semiconductive material from solution, wherein the semiconductive material is absent from the first zone, but not from the second zone.
    Type: Grant
    Filed: January 19, 2004
    Date of Patent: May 4, 2010
    Assignee: Plastic Logic Limited
    Inventors: Henning Sirringhaus, Catherine Ramsdale
  • Publication number: 20100099227
    Abstract: A semiconductor device having a CMOS structure, wherein, in manufacturing a CMOS circuit, an impurity element which imparts p-type conductivity to the active layer of the p-channel type semiconductor device is added before forming the gate insulating film. Then, by applying thermal oxidation treatment to the active layer, the impurity element is subjected to redistribution, and the concentration of the impurity element in the principal surface of the active layer is minimized. The precise control of threshold voltage is enabled by the impurity element that is present in a trace quantity.
    Type: Application
    Filed: December 21, 2009
    Publication date: April 22, 2010
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hisashi Ohtani, Takeshi Fukunaga
  • Patent number: 7696024
    Abstract: A semiconductor device is provided, which comprises a semiconductor film, a gate insulating film, a gate electrode, an insulating film, and a source and drain electrodes. The semiconductor film includes at least a channel forming region, a region, a source and drain regions disposed between the channel forming region and the region, a first silicide region over the region, and a second silicide region over a portion of the source and drain regions. The insulating film has a contact hole to expose at least the first silicide region. Each of the source and drain electrodes is electrically connected to the first silicide region via the contact hole. The region includes an element imparting one conductivity type at a lower concentration than the source and drain regions.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: April 13, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hotaka Maruyama, Kengo Akimoto
  • Patent number: 7691692
    Abstract: A substrate processing apparatus includes a plurality of evacuable treatment chambers connected to one another via an evacuable common chamber, and the common chamber is provided with means for transporting a substrate between each treatment chamber. More specifically, a substrate processing apparatus includes a plurality of evacuable treatment chambers, at least one of said treatment chambers having a film formation function through a vapor phase reaction therein, at least one of said treatment chambers having an annealing function with light irradiation and at least one of said treatment chambers having a heating function therein. The apparatus also has a common chamber through which said plurality of evacuable treatment chambers are connected to one another, and a transportation means provided in said common chamber for transporting a substrate between each treatment chamber.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: April 6, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hisashi Ohtani, Hiroyuki Shimada, Mitsunori Sakama, Hisashi Abe, Satoshi Teramoto
  • Patent number: 7692250
    Abstract: Methods of forming a semiconductor structure having FinFET's and planar devices, such as MOSFET's, on a common substrate by a damascene approach, and semiconductor structures formed by the methods. A semiconductor fin of the FinFET is formed on a substrate with damascene processing in which the fin growth may be interrupted to implant ions that are subsequently transformed into a region that electrically isolates the fin from the substrate. The isolation region is self-aligned with the fin because the mask used to form the damascene-body fin also serves as an implantation mask for the implanted ions. The fin may be supported by the patterned layer during processing that forms the FinFET and, more specifically, the gate of the FinFET. The electrical isolation surrounding the FinFET may also be supplied by a self-aligned process that recesses the substrate about the FinFET and at least partially fills the recess with a dielectric material.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: April 6, 2010
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., Jack Allan Mandelman, William Robert Tonti
  • Publication number: 20100072549
    Abstract: It is made possible to restrict strain relaxation even if a strained semiconductor element is formed on a very small minute layer. A semiconductor device includes: a substrate; a first semiconductor layer formed into a mesa shape above the substrate and having strain, and including source and drain regions of a first conductivity type located at a distance from each other, and a channel region of a second conductivity type different from the first conductivity type, the channel region being located between the source region and the drain region; second and third semiconductor layers formed on the source and drain regions, and controlling the strain of the first semiconductor layer, the second and third semiconductor layers containing impurities of the first conductivity type; a gate insulating film formed on the channel region; and a gate electrode formed on the gate insulating film.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Inventors: Koji Usuda, Yoshihiko Moriyama
  • Patent number: 7682856
    Abstract: An electro-optical device includes, above a substrate, a plurality of data lines and a plurality of scanning lines that cross each other, a plurality of pixel electrodes that are provided so as to correspond to intersections between the plurality of data lines and the plurality of scanning lines, and transistors, each of which is electrically connected to the pixel electrode and has an LDD structure. Further, each of the transistors has a semiconductor layer in which an impurity region is formed around a channel region, the impurity region having a heavily doped region and a lightly doped region whose impurity concentrations are different from each other, a first gate electrode that is formed on the channel region so as not to overlap the lightly doped region in plan view, and a second gate electrode that is electrically connected to the first gate electrode and that is formed on the first gate electrode so as to cover the lightly doped region in plan view.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: March 23, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Ishii
  • Patent number: 7682926
    Abstract: A method of fabricating a semiconductor device includes forming an ion implanted region on a semiconductor substrate in a cell/core region. The semiconductor substrate is selectively etched to form a recess. The recess exposes a boundary of the ion implanted region. The ion implanted region exposed at the bottom of the recess is removed to form an under-cut space in the semiconductor substrate. An insulating film is formed to form a substrate having a silicon-on-insulator (SOI) structure in the cell/core region. The insulating film fills the under-cut space and the recess.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: March 23, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Tae Su Jang
  • Publication number: 20100065851
    Abstract: A semiconductor device 100 includes a thin-film transistor 123 and a thin-film diode 124. The thin-film transistor 123 includes a semiconductor layer S1 with a channel region 114, a source region and a drain region 112, a gate electrode 109 that controls the conductivity of the channel region 114, and a gate insulating film 108 arranged between the semiconductor layer and the gate electrode 109. The thin-film diode 124 includes a semiconductor layer S2 with at least an n-type region 113 and a p-type region 117. The respective semiconductor layers S1 and S2 of the thin-film transistor 123 and the thin-film diode 124 are portions of a single crystalline semiconductor layer, obtained by crystallizing the same crystalline semiconductor film, but have been crystallized to mutually different degrees.
    Type: Application
    Filed: February 18, 2008
    Publication date: March 18, 2010
    Inventor: Naoki Makita
  • Patent number: 7678627
    Abstract: In a process for producing a TFT display, a polysilicon layer is patterned to define a first and a second TFT regions. A first doping material is implanted into a first exposed portion in the first TFT region to define a first doped region and a first channel region, and implanted into a second exposed portion in the second TFT region to define a second doped region and a second channel region. A second doping material is implanted into a third exposed portion smaller than the first exposed portion to form first source/drain regions and simultaneously define a first LDD region in the first TFT region. A first and a second gate structures are formed over the first and the second channel regions, respectively. In a certain direction, the first gate structure is longer than the first channel, and the second gate structure isn't longer than the second channel region.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: March 16, 2010
    Assignee: TPO Display Corp.
    Inventors: An Shih, Chao-Yu Meng, Wen Yuan Guo
  • Patent number: 7678626
    Abstract: A method of forming a thin film device on a flexible substrate is disclosed. The method includes depositing an imprintable material over the flexible substrate. The imprintable are stamped material forming a three-dimensional pattern in the imprintable material. A sacrificial layer is formed over the three-dimensional pattern. A conductive layer is deposited over the sacrificial layer. The sacrificial layer is removed, leaving portions of the conductive layer as defined by the three-dimensional pattern.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: March 16, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Craig M. Perlov, Ping Mei
  • Patent number: 7678623
    Abstract: This invention relates to a process for fabricating a staggered source/drain and thin-channel TFT structure, which simplifies the conventional process for fabricating the structure by decreasing the number of mask steps and achieving better results at suppressing the electric field near the drain junction and reducing the leakage current. The process comprises (1) re-crystallizing a-Si into poly-Si (02), which is performed by depositing an a-Si layer on a substrate and then applying a general photolithographic step and a RIE etching step for defining the amorphous Si islands provided with higher regions and lower regions, wherein the residual width of the thin channel of the a-Si is about 5 to 200 nm after etching; then the a-Si is changed into poly-Si (02) after a subsequent annealing; (2) defining the gate region (05), source/drain region (07) and the channel; (3) applying the implantation; and (4) applying the connection.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: March 16, 2010
    Assignee: National Chiao-Tung University
    Inventors: Kow-Ming Chang, Gin-Min Lin
  • Patent number: 7678619
    Abstract: A method of manufacturing a thin film transistor matrix substrate is provided. The first photo-mask process is used to define a gate electrode and a signal electrode. The second photo-mask process is used to obtain different thickness of a PR layer in different regions for forming a channel, gate electrode through holes, signal electrode through holes and conductive pads. The third photo-mask process is used to define a source, a drain, an upper signal electrode, a pixel electrode, gate electrode pads and signal electrode pads.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: March 16, 2010
    Assignee: Au Optronics Corporation
    Inventor: Liu-Chung Lee
  • Patent number: 7678648
    Abstract: Novel etch techniques are provided for shaping silicon features below the photolithographic resolution limits. FinFET devices are defined by recessing oxide and exposing a silicon protrusion to an isotropic etch, at least in the channel region. In one implementation, the protrusion is contoured by a dry isotropic etch having excellent selectivity, using a downstream microwave plasma etch.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: March 16, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Kevin J. Torek, Mark Fischer, Robert J. Hanson
  • Patent number: 7679084
    Abstract: A TFT array panel and a method for fabricating the same is disclosed, wherein an adhesion force between an elongated wire and a TFT array panel pad is improved by increasing the contact area of a bonding pad. The TFT array panel pad includes a first conductive layer formed in a pad region on an insulating substrate. The first conductive layer includes a plurality of conductive islands and holes. A second conductive layer is formed over and covers the first conductive layer.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: March 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Kyo Seop Choo, June Ho Park
  • Patent number: 7670881
    Abstract: At present, a forming process of a base film through an amorphous silicon film is conducted in respective film forming chambers in order to obtain satisfactory films. When continuous formation of the base film through the amorphous silicon film is performed in a single film forming chamber with the above film formation condition, crystallization is not sufficiently attained in a crystallization process. By forming the amorphous silicon film using silane gas diluted with hydrogen, crystallization is sufficiently attained in the crystallization process even with the continuous formation of the base film through the amorphous silicon film in the single film forming chamber.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: March 2, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Taketomi Asami, Mitsuhiro Ichijo, Satoshi Toriumi
  • Patent number: 7666695
    Abstract: Provided is an array substrate of an LCD that includes a substrate, an active layer, a first insulating layer, and a gate electrode sequentially formed on the substrate. A source region and a drain region reside in predetermined regions of the active layer and each is doped with impurity ions. A second insulating layer overlies an entire surface of the substrate including the gate electrode. A pixel electrode resides on the second insulating layer. First and second contact holes reside in the first and second insulating layer and expose portions of the source region and the drain region, respectively. A portion of a source electrode contacts the source region through the first contact hole and a first portion of a drain electrode contacts the drain region and a second portion contacts the pixel electrode.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: February 23, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: Hun Jeoung, Jeong Woo Jang
  • Publication number: 20100041187
    Abstract: A thin film transistor device reduced substantially in resistance between the source and the drain by incorporating a silicide film, which is fabricated by a process comprising forming a gate insulator film and a gate contact on a silicon substrate, anodically oxidizing the gate contact, covering an exposed surface of the silicon semiconductor with a metal and irradiating an intense light such as a laser beam to the metal film either from the upper side or from an insulator substrate side to allow the metal coating to react with silicon to obtain a silicide film. The metal silicide layer may be obtained otherwise by tightly adhering a metal coating to the exposed source and drain regions using an insulator formed into an approximately triangular shape, preferably 1 ?m or less in width, and allowing the metal to react with silicon.
    Type: Application
    Filed: October 23, 2009
    Publication date: February 18, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yasuhiko TAKEMURA, Hongyong ZHANG, Satoshi TERAMOTO
  • Publication number: 20100035424
    Abstract: A hydrogenation method that utilizes plasma directly exposes a crystalline semiconductor film to the plasma, and therefore involves the problem that the crystalline semiconductor film is damaged by the ions generated simultaneously in the plasma. If a substrate is heated to 400° C. or above to recover this damage, hydrogen is re-emitted from the crystalline semiconductor film.
    Type: Application
    Filed: October 14, 2009
    Publication date: February 11, 2010
    Inventors: Shunpei Yamazaki, Taketomi Asami, Hidehito Kitakado, Yasuyuki Arai
  • Patent number: 7659153
    Abstract: A field effect device is disclosed which has a body formed of a crystalline semiconductor material and has at least one vertically oriented section and at least one horizontally oriented section. The device is produced in SOI technology by fabricating first a formation of the device in masking insulators, and then transferring this formation through several etching steps into the SOI layer. The segmented field effect device combines FinFET, or fully depleted silicon-on-insulator FETs, type devices with fully depleted planar devices. This combination allows device width control with FinFET type devices. The segmented field effect device gives high current drive for a given layout area. The segmented field effect devices allow for the fabrication of high performance processors.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: February 9, 2010
    Assignee: International Business Machines Corporation
    Inventors: Ying Zhang, Bruce B. Doris, Thomas Safron Kanarsky, Meikei Ieong, Jakub Tadeusz Kedzierski
  • Patent number: 7648866
    Abstract: Provided is a method of manufacturing a driving-device for a unit pixel of an organic light emitting display having an improved manufacturing process in which the driving device can be manufactured with a smaller number of processes and in simpler processes.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-sim Jung, Jung-seok Hahn, Sang-yoon Lee, Jong-man Kim, Jang-yeon Kwon, Kyung-bae Park
  • Patent number: 7638376
    Abstract: A method for forming a substrate contact on a silicon-on-insulator (SOI) wafer is provided that can be integrated with a process for fabricating SOI devices without additional processing after wafer dicing. The method is applicable in many of the more advanced packaging technologies, e.g., such as flip chip and die stacking, directly creating a contact to silicon substrate via the front of the diced SOI wafer.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: December 29, 2009
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Cheng-Kuo Wen, Chien-Chao Huang, Hao-Yu Chen, Fu-Liang Yang, Hsun-Chih Tsao
  • Publication number: 20090298242
    Abstract: Disclosed herein is a method for manufacturing a semiconductor device that includes forming a gate pattern on a substrate having a stacked structure including a lower silicon layer, an insulating layer, and an upper silicon layer. The method further includes forming spacers on sidewalls of the gate pattern. Still further, the method includes etching the upper silicon layer using the gate pattern as a mask to form a floating body and expose a portion of the insulating layer. The method further includes depositing a conductive layer over the gate pattern and exposed insulating layer, and performing a thermal process on the conductive layer to form a source/drain region in the floating body.
    Type: Application
    Filed: December 3, 2008
    Publication date: December 3, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Joong Sik Kim, Sung Woong Chung
  • Publication number: 20090298243
    Abstract: Silicon on insulator (SOI) devices and methods for fabricating the same are provided. An exemplary embodiment of a SOI device comprises a substrate. A first insulating layer is formed over the substrate. A plurality of semiconductor islands is formed over the first insulating layer, wherein the semiconductor islands are isolated from each other. A second insulating layer is formed over the first insulating layer, protruding over the semiconductor islands and surrounding thereof. At least one recess is formed in a portion of the second insulating layer adjacent to a pair of the semiconductor islands. A first dielectric layer is formed on a portion of each of the semiconductor islands. A conductive layer is formed over the first dielectric layer and over the second insulating layer exposed by the recess. A pair of source/drain regions is oppositely formed in portions of each of the semiconductor islands not covered by the first dielectric layer and the conductive layer.
    Type: Application
    Filed: May 19, 2009
    Publication date: December 3, 2009
    Inventors: Chung-Long Cheng, Kong-Beng Thei, Sheng-Chen Chung, Tzung-Chi Lee, Harry Chuang
  • Publication number: 20090290082
    Abstract: A p channel TFT of a driving circuit has a single drain structure and its n channel TFT, an LDD structure. A pixel TFT has the LDD structure. A pixel electrode disposed in a pixel unit is connected to the pixel TFT through a hole bored in at least a protective insulation film formed of an inorganic insulating material and formed above a gate electrode of the pixel TFT, and in an inter-layer insulation film disposed on the insulation film in close contact therewith. These process steps use 6 to 8 photo-masks.
    Type: Application
    Filed: July 30, 2009
    Publication date: November 26, 2009
    Inventors: Shunpei Yamazaki, Yasuyuki Arai, Jun Koyama
  • Patent number: 7622338
    Abstract: The present invention provides a method for forming a semiconductor region having a desired shape, and also provides a method for manufacturing a semiconductor device with few variations. Moreover, the present invention provides a method for manufacturing a semiconductor device which can reduce the cost with a small number of materials and with high yield. According to the present invention, after a semiconductor film is partially oxidized to form an oxide layer, the semiconductor film is etched using the oxide layer as a mask to form a semiconductor region having a desired shape, and thereafter a semiconductor device using the semiconductor region is manufactured. Thus, a semiconductor region having a desired shape can be formed in a predetermined position without using a known photolithography step using a resist.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: November 24, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Osamu Nakamura, Junko Sato
  • Patent number: 7622337
    Abstract: Embodiments relate to a method for fabricating a transistor by using a SOI wafer. A gate insulation layer and a first gate conductive layer on a silicon-on-insulator substrate of a substrate to form a first gate conductive pattern, a gate insulation layer pattern, and a silicon layer pattern. A device isolation insulation layer exposing the top surface of the first gate conductive layer pattern may be formed. A second gate conductive layer may be formed. A mask pattern may be formed. Then, a gate may be formed by etching. After forming a source and drain conductive layer on the silicon layer pattern, the mask pattern may be removed. A salicide layer may be selectively contacting the gate and the source and drain conductive layer may be formed.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: November 24, 2009
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Jeong Ho Park
  • Patent number: 7615384
    Abstract: A method of manufacturing a semiconductor device with the use of a laser crystallization method is provided which can prevent grain boundaries from being formed in a channel forming region of a TFT and which can avoid substantial reduction in TFT mobility, reduction in on current, and increase in off current due to the grain boundaries, and a semiconductor device manufactured by using the manufacturing method is also provided. Stripe shape or rectangular shape unevenness is formed only in a driver circuit. Continuous wave laser light is irradiated to a semiconductor film formed on an insulating film along the stripe unevenness of the insulating film or along a major axis or minor axis of the rectangular unevenness. Although it is most preferable to use the continuous wave laser light at this point, pulse wave laser light may also be used.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: November 10, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 7615782
    Abstract: The present invention relates to a thin film transistor substrate and a liquid crystal display panel for use in a liquid crystal display apparatus, and aims to provide a thin film transistor substrate and a liquid crystal display panel with good display quality. The thin film transistor substrate has a first sub-pixel electrode 16 and second sub-pixel electrode 17 arranged on the opposite sides of the gate bus line 12, a first thin film transistor 20a that establishes direct electrical connection with the first sub-pixel electrode 16, and a second thin film transistor 20b capacitively coupled to the second sub-pixel electrode 17. Since capacitance is formed where conventionally a source electrode and pixel electrode are connected via a contact hole, excessively opaque wiring is not required, which ensures sufficient effective area and transmittance of a pixel.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: November 10, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Atsuyuki Hoshino
  • Patent number: 7611928
    Abstract: Substrate having a first partial substrate with a carrier layer and a second partial substrate, which is bonded to the first partial substrate. The second partial substrate has an insulator layer, which is applied on the carrier layer and has at least two regions each having a different thickness, thereby forming a stepped surface of the insulator layer, and a semiconductor layer, which is applied to the stepped surface of the insulator layer and is formed at least partially epitaxially, wherein the semiconductor layer has a planar surface which is opposite to the stepped surface of the insulator layer. Transistors are formed on the semiconductor layer.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: November 3, 2009
    Assignee: Infineon Technologies AG
    Inventors: Franz Hofmann, Richard Johannes Luyken, Wolfgang Roesner, Michael Specht, Martin Stadele
  • Patent number: 7608495
    Abstract: A transistor forming method includes forming a dielectric spacer in a trench surrounding an active area island, forming line openings through the spacer, and forming a gate line extending through the line openings, over opposing sidewalls, and over a top of the fin. Source/drain regions are in the fin. Another method includes forming an interlayer dielectric over areas of the fin intended for source/drain regions, forming contact openings through the interlayer dielectric, and forming a source/drain plug in contact with an exposed portion of the spacer and in electrical connection with the top, one of opposing endwalls, and both of the opposing sidewalls of the fin.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: October 27, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Jasper Gibbons
  • Publication number: 20090263942
    Abstract: A single crystal semiconductor substrate including an embrittlement layer is attached to a base substrate with an insulating layer interposed therebetween, and the single crystal semiconductor layer is separated at the embrittlement layer by heat treatment; accordingly, a single crystal semiconductor layer is fixed over the base substrate. The single crystal semiconductor layer is irradiated with a laser beam so that the single crystal semiconductor layer is partially melted and then is re-single crystallized, whereby crystal defects are removed. In addition, an island-shaped single crystal semiconductor layer for forming an n-channel transistor is channel-doped using a photomask and then is etched back using the photomask so that the island-shaped single crystal semiconductor layer for forming an n-channel transistor is thinner than the island-shaped single crystal semiconductor layer for forming a p-channel transistor.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 22, 2009
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hideto OHNUMA, Noritsugu NOMURA
  • Patent number: 7605023
    Abstract: To apply a technique of forming a dense insulating film with a high quality in a thin film element such as a TFT formed on a glass substrate by eliminating an influence of contraction of the substrate caused by heat treatment in a manufacturing process for the element, and a semiconductor device using the same, which enables high performance and reliability. In a step of forming the thin film element composed of a laminate of plural thin films using the glass substrate, in order to avoid a thermal damage on the substrate, heat treatment is performed such that a coating film for absorbing radiation from a heat source is locally formed in a specific portion of the substrate where the thin film element is to be formed. For the substrate to be applied in the present invention, a raw material low in absorptance with respect to the radiation from the heat source and hard to be heated is adopted.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: October 20, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toru Takayama, Shunpei Yamazaki, Tetsuji Yamaguchi
  • Patent number: 7605028
    Abstract: A memory device and a method of forming the memory device. The memory device comprises a storage transistor at a surface of a substrate comprising a body portion between first and second source/drain regions, wherein the source/drain regions are regions of a first conductivity type. The storage transistor also comprises a gate structure that wraps at least partially around the body portion in at least two spatial planes. A bit line is connected to the first source/drain region and a word line connected to the gate structure. The memory device does not require an additional capacitive storage element.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: October 20, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Chandra Mouli
  • Publication number: 20090250758
    Abstract: A semiconductor element formed over the same substrate as a TFT, includes a semiconductor film having an impurity region; an insulating film formed over the semiconductor film; an electrode divided into a plurality of parts over the insulating film by spacing a distance a in a first direction (channel width direction); an insulator with a width b formed to be in contact with a side wall of the electrodes and an insulator formed in a region between the electrodes divided into a plurality of parts; a silicide layer formed over part of the surface of the impurity region; and characteristics of the TFT are evaluated by measuring resistance of the semiconductor film of the semiconductor element.
    Type: Application
    Filed: June 4, 2009
    Publication date: October 8, 2009
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Atsuo ISOBE
  • Publication number: 20090239343
    Abstract: This invention includes a capacitorless one transistor DRAM cell that includes a pair of spaced source/drain regions received within semiconductive material. An electrically floating body region is disposed between the source/drain regions within the semiconductive material. A first gate spaced is apart from and capacitively coupled to the body region between the source/drain regions. A pair of opposing conductively interconnected second gates are spaced from and received laterally outward of the first gate. The second gates are spaced from and capacitively coupled to the body region laterally outward of the first gate and between the pair of source/drain regions. Methods of forming lines of capacitorless one transistor DRAM cells are disclosed.
    Type: Application
    Filed: April 29, 2009
    Publication date: September 24, 2009
    Inventor: Fernando Gonzalez
  • Publication number: 20090227077
    Abstract: Disclosed are planar and non-planar field effect transistor (FET) structures and methods of forming the structures. The structures comprise segmented active devices (e.g., multiple semiconductor fins for a non-planar transistor or multiple semiconductor layer sections for a planar transistor) connected at opposite ends to source/drain bridges. A gate electrode is patterned on the segmented active devices between the source/drain bridges such that it has a reduced length between the segments (i.e., between the semiconductor fins or sections). Source/drain contacts land on the source/drain bridges such that they are opposite only those portions of the gate electrode with the reduced gate length. These FET structures can be configured to simultaneously maximize the density of the transistor, minimize leakage power and maintain the parasitic capacitance between the source/drain contacts and the gate conductor below a preset level, depending upon the performance and density requirements.
    Type: Application
    Filed: May 19, 2009
    Publication date: September 10, 2009
    Applicant: International Business Machines Corporation
    Inventors: Brent A. Anderson, Edward J. Nowak