Using Semiconductor Or Insulator Technology, I.e., Soi Technology (epo) Patents (Class 257/E21.561)
  • Patent number: 8048725
    Abstract: A method of forming a pattern and a method of producing an electronic element are characterized by including a first step of forming an electrically conductive film (D) by applying a liquid composition onto a first plate (10), and heating the first plate (10); a second step of forming an electrically conductive pattern (D?) on the first plate (10) by pressing a second plate (20) having a projection-and-recess pattern on a surface side thereof onto a surface side of the first plate (10), on which the electrically conductive film (D) is formed, to transfer an unwanted pattern of the electrically conductive film (D) to top faces of projections (20a) of the second plate (20), thereby removing the unwanted pattern; and a third step of transferring the electrically conductive pattern (D?) to a surface of a transfer-receiving substrate (30) by pressing the surface side of the first plate (10), on which the electrically conductive pattern (D?) is formed, onto the surface of the transfer-receiving substrate (30), wher
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: November 1, 2011
    Assignee: Sony Corporation
    Inventors: Toshio Fukuda, Akihiro Nomoto
  • Patent number: 8043929
    Abstract: Hetero-semiconductor structures possessing an SOI structure containing a silicon-germanium mixed crystal are produced at a low cost and high productivity. The semiconductor substrates comprise a first layer formed of silicon having germanium added thereto, a second layer formed of an oxide and adjoined to the first layer, and a third layer derived from the same source as the first layer, but having an enriched content of germanium as a result of thermal oxidation and thinning of the third layer.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: October 25, 2011
    Assignee: Siltronic AG
    Inventors: Josef Brunner, Hiroyuki Deai, Atsushi Ikari, Martin Grassl, Atsuki Matsumura, Wilfried von Ammon
  • Patent number: 8043937
    Abstract: It is an object to provide a novel manufacturing method of a semiconductor substrate containing silicon carbide. The method for manufacturing a semiconductor device includes the steps of performing carbonization treatment on a surface of a silicon substrate to form a silicon carbide layer; adding ions to the silicon substrate to form an embrittlement region in the silicon substrate; bonding the silicon substrate and a base substrate with insulating layers interposed between the silicon substrate and the base substrate; heating the silicon substrate and separating the silicon substrate at the embrittlement region to form a stacked layer of the silicon carbide layer and a silicon layer over the base substrate with the insulating layers interposed between the base substrate and the stacked layer; and removing the silicon layer to expose a surface of the silicon carbide layer.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: October 25, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Toru Takayama
  • Publication number: 20110254090
    Abstract: A transistor is provided that includes a buried oxide layer above a substrate. A silicon layer is above the buried oxide layer. A gate stack is on the silicon layer, the gate stack including a high-k oxide layer on the silicon layer and a metal gate on the high-k oxide layer. A nitride liner is adjacent to the gate stack. An oxide liner is adjacent to the nitride liner. A set of faceted raised source/drain regions having a part including a portion of the silicon layer. The set of faceted raised source/drain regions also include a first faceted side portion and a second faceted side portion.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 20, 2011
    Applicant: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce Doris, Ali Khakifirooz, Pranita Kulkarni, Ghavam Shahidi
  • Publication number: 20110241115
    Abstract: A Schottky field effect transistor (FET) includes a gate stack located on a silicon on insulator (SOI) layer, the gate stack comprising a gate silicide region; and source/drain silicide regions located in the SOI layer, the source/drain silicide regions comprising and at least one of sulfur and fluorine, wherein an interface comprising arsenic is located between each of the source/drain silicide regions and the SOI layer. A method of forming a contact, the contact comprising a silicide region adjacent to a silicon region, includes co-implanting the silicide region with arsenic and at least one of sulfur and fluorine; and drive-in annealing the co-implanted silicide region to diffuse the arsenic to an interface between the silicide region and the silicon region.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 6, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christian Lavoie, Siegfried L. Maurer, Qiqing Ouyang, Paul Solomon, Zhen Zhang
  • Patent number: 8030106
    Abstract: A method of manufacturing a display device includes forming a gate electrode on a substrate, a gate insulating layer on the gate electrode, and an active layer on the gate insulating layer, the gate electrode made of extrinsic polycrystalline silicon, the active layer made of intrinsic polycrystalline silicon; forming an etch stopper on the active layer; forming source and drain electrodes spaced apart from each other on the etch stopper; forming an ohmic contact layer each between a side of the active layer and the source electrode and between an opposing side of the active layer and the drain electrode; forming a gate line connected to the gate electrode; and forming a data line crossing the gate line.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 4, 2011
    Assignee: LG. Display Co. Ltd.
    Inventors: Hee-Dong Choi, Seong-Moh Seo
  • Publication number: 20110227159
    Abstract: Silicon-on-insulator (SOI) structures with silicon layers less than 20 nm thick are used to form extremely thin silicon-on-insulator (ETSOI) semiconductor devices. ETSOI devices are manufactured using a thin tungsten backgate encapsulated by thin nitride layers to prevent metal oxidation, the tungsten backgate being characterized by its low resistivity. The structure further includes at least one FET having a gate stack formed by a high-K metal gate and a tungsten region superimposed thereon, the footprint of the gate stack utilizing the thin SOI layer as a channel. The SOI structure thus formed controls the Vt variation from the thin SOI thickness and dopants therein. The ETSOI high-K metal backgate fully depleted device in conjunction with the thin BOX provides an excellent short channel control and significantly lowers the drain induced bias and sub-threshold swings.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 22, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin K. Chan, Zhibin Ren, Xinhui Wang
  • Publication number: 20110227157
    Abstract: A semiconductor is formed on an SOI substrate, such as an extremely thin SOI (ETSOI) substrate, with increased extension thickness. Embodiments include semiconductor devices having an epitaxially formed silicon-containing layer, such as embedded silicon germanium (eSiGe), on the SOI substrate. An embodiment includes forming an SOI substrate, epitaxially forming a silicon-containing layer on the SOI substrate, and forming a gate electrode on the epitaxially formed silicon-containing layer. After gate spacers and source/drain regions are formed, the gate electrode and underlying silicon-containing layer are removed and replaced with a high-k metal gate. The use of an epitaxially formed silicon-containing layer reduces SOI thickness loss due to fabrication process erosion, thereby increasing extension thickness and lowering extension resistance.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 22, 2011
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Bin Yang, Man Fai Ng
  • Patent number: 8021917
    Abstract: An object is to suppress deterioration of element characteristics even when an oxide semiconductor is formed after a gate insulating layer, a source electrode layer, and a drain electrode layer are formed. A gate electrode layer is formed over a substrate. A gate insulating layer is formed over the gate electrode layer. A source electrode layer and a drain electrode layer are formed over the gate insulating layer. Surface treatment is performed on surfaces of the gate insulating layer, the source electrode layer, and the drain electrode layer which are formed over the substrate. After the surface treatment is performed, an oxide semiconductor layer is formed over the gate insulating layer, the source electrode layer, and the drain electrode layer.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: September 20, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kengo Akimoto, Masashi Tsubuku
  • Patent number: 8017461
    Abstract: Semiconductor-on-insulator (SOI) field effect transistors include a semiconductor substrate and a first semiconductor active region on a first portion of a surface of the substrate. A first electrically insulating layer is provided. This first electrically insulating layer extends on a second portion of the surface of the substrate and also on a first sidewall of the first semiconductor active region. A second electrically insulating layer is provided, which extends on a third portion of the surface of the semiconductor substrate. The second electrically insulating layer also extends on a second sidewall of the first semiconductor active region. A second semiconductor active region is provided on the first semiconductor active region. The second semiconductor active region extends on the first semiconductor active region and on ends of the first and second electrically insulating layers.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: September 13, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-young Lee, Dong-suk Shin
  • Patent number: 8017998
    Abstract: Gettering contaminants for formation of integrated circuits on a semiconductor-on-insulator structure is described. A semiconductor-on-insulator structure is configured to attract contaminants. Contaminant attractor regions are formed using ion implantation into a semiconductor layer of the semiconductor-on-insulator structure. The semiconductor layer is located above a buried insulator layer of the semiconductor-on-insulator structure. The contaminant attractor regions are spaced away from active regions. Tiles are located on an upper surface of the buried insulator layer. The contaminant attractor regions are formed adjacent to, in close proximity to, or in the tiles. At least one dielectric layer laterally adjacent to the tiles and is disposed on the upper surface of the buried insulator layer. The at least one dielectric layer at least inhibits lateral migration of contaminants to the active regions.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: September 13, 2011
    Assignee: T-RAM Semiconductor, Inc.
    Inventors: Srinivasa R. Banna, Scott Robins
  • Publication number: 20110215409
    Abstract: An electrical device is provided with a p-type semiconductor device having a first gate structure that includes a gate dielectric on top of a semiconductor substrate, a p-type work function metal layer, a metal layer composed of titanium and aluminum, and a metal fill composed of aluminum. An n-type semiconductor device is also present on the semiconductor substrate that includes a second gate structure that includes a gate dielectric, a metal layer composed of titanium and aluminum, and a metal fill composed of aluminum. An interlevel dielectric is present over the semiconductor substrate. The interlevel dielectric includes interconnects to the source and drain regions of the p-type and n-type semiconductor devices. The interconnects are composed of a metal layer composed of titanium and aluminum, and a metal fill composed of aluminum. The present disclosure also provides a method of forming the aforementioned structure.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 8, 2011
    Applicant: International Business Machines Corporation
    Inventors: Zhengwen Li, Michael P. Chudzik, Unoh Kwon, Filippos Papadatos, Andrew H. Simon, Keith Kwong Hon Wong
  • Publication number: 20110215405
    Abstract: A method of forming fin field effect transistor (finFET) devices includes forming a plurality of semiconductor fins over a buried oxide (BOX) layer; performing a nitrogen implant so as to formed nitrided regions in a upper portion of the BOX layer corresponding to regions between the plurality of semiconductor fins; forming a gate dielectric layer over the semiconductor fins and the nitrided regions of the upper portion of the BOX layer; and forming one or more gate electrode materials over the gate dielectric layer; wherein the presence of the nitrided regions of upper portion of the BOX layer prevents oxygen absorption into the gate dielectric layer as a result of thermal processing.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 8, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dechao Guo, Unoh Kwon, Chun-Chen Yeh, Zhen Zhang
  • Patent number: 8012833
    Abstract: A method for fabricating a semiconductor device includes forming an insulating pattern over a semiconductor substrate. An epitaxial growth layer is formed over the semiconductor substrate exposed by the insulating pattern to fill the insulating pattern with the epitaxial growth layer. A recess gate having a recess channel is formed. The recess channel is disposed between two neighboring insulating patterns.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: September 6, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Song Hyeuk Im
  • Patent number: 8008138
    Abstract: A method of fabricating a semiconductor device is provided in which the channel of the device is present in an extremely thin semiconductor-on-insulator (ETSOI) layer, i.e., a semiconductor layer having a thickness of less than 20 nm. In one embodiment, the method begins with forming a first semiconductor layer and epitaxially growing a second semiconductor layer on a handling substrate. A first gate structure is formed on a first surface of the second semiconductor layer and source regions and drain regions are formed adjacent to the gate structure. The handling substrate and the first semiconductor layer are removed to expose a second surface of the second semiconductor layer that is opposite the first surface of the semiconductor layer. A second gate structure or a dielectric region is formed in contact with the second surface of the second semiconductor layer.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: August 30, 2011
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Ghavam G. Shahidi
  • Patent number: 8008169
    Abstract: A fragile layer is formed in a single crystal silicon substrate, a first impurity silicon layer is formed on the one surface side in the single crystal silicon substrate, and a first electrode is formed thereover. After one surface of a supporting substrate and the first electrode are bonded, the single crystal silicon substrate is separated along the fragile layer to form a single crystal silicon layer over the supporting substrate. Crystal defect repair treatment or crystal defect elimination treatment of the single crystal silicon layer is performed; then, epitaxial growth is conducted on the single crystal silicon layer by activating a source gas containing at least a silane-based gas with plasma generated at atmospheric pressure or near atmospheric pressure. A second impurity silicon layer is formed on a surface side in the single crystal silicon layer which is epitaxial grown.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: August 30, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideto Ohnuma, Takashi Hirose
  • Patent number: 8003491
    Abstract: Methods and apparatus provide for forming a semiconductor-on-insulator (SOI) structure, including subjecting a implantation surface of a donor semiconductor wafer to an ion implantation step to create a weakened slice in cross-section defining an exfoliation layer of the donor semiconductor wafer; and subjecting the donor semiconductor wafer to a spatial variation step, either before, during or after the ion implantation step, such that at least one parameter of the weakened slice varies spatially across the weakened slice in at least one of X- and Y-axial directions.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: August 23, 2011
    Assignee: Corning Incorporated
    Inventors: Sarko Cherekdjian, Jeffrey Scott Cites, James Gregory Couillard, Richard Orr Maschmeyer, Michael John Moore, Alex Usenko
  • Publication number: 20110198696
    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: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Kisik CHOI, Robert J. Miller
  • Patent number: 7999322
    Abstract: A thin film transistor comprises an Si-based channel having a nonlinear electron-moving path, a source and a drain disposed at both sides of the channel, a gate disposed above the channel, an insulator interposed between the channel and the gate, and a substrate supporting the channel and the source and the drain disposed at either side of the channel respectively.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: August 16, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huaxiang Yin, Takashi Noguchi, Hyuk Lim, Wenxu Xianyu, Hans S. Cho
  • Patent number: 7994023
    Abstract: A manufacturing method of an SOI substrate and a manufacturing method of a semiconductor device are provided. When a large-area single crystalline semiconductor film is formed over an enlarged substrate having an insulating surface, e.g., a glass substrate by an SOI technique, the large-area single crystalline semiconductor film is formed without any gap between plural single crystalline semiconductor films, even when plural silicon wafers are used. An aspect of the manufacturing method includes the steps of disposing a first seed substrate over a fixing substrate; tightly arranging a plurality of single crystalline semiconductor substrates over the first seed substrate to form a second seed substrate; forming a large-area continuous single crystalline semiconductor film by an ion implantation separation method and an epitaxial growth method; forming a large-area single crystalline semiconductor film without any gap over a large glass substrate by an ion implantation separation method again.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: August 9, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Tomoaki Moriwaka
  • Patent number: 7989274
    Abstract: A display device including an oxide thin film transistor (TFT) is disclosed. A nitride-based gate insulating layer of a gate pad area is etched when an oxide semiconductor layer of a pixel area is etched by using a half-tone mask, a metal layer is formed at a contact hole of the etched gate insulting layer, and then a passivation layer formed thereon is etched. Thus, an overhang of the passivation layer can be prevented from being generated when the gate insulating layer is etched, and accordingly, the fabrication process can be simplified.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 2, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Im-Kuk Kang, Dae-Won Kim
  • Patent number: 7989327
    Abstract: A method of manufacturing a semi-conductor on insulator substrate from an SOI substrate, wherein a Si1-xGex layer is formed on a superficial layer of silicon having a buried electrical insulating layer. A silicon oxide layer is formed on the Si1-xGex layer. The resulting stack of silicon, Si1-xGex and silicon oxide layers is etched up to the buried insulating layer leaving an island of the stack, or up to the superficial layer leaving a zone of silicon and an island of the stack. A mask is formed to protect against oxidation on the etched structure, wherein the protective mask only leaves visible the silicon oxide layer of the island. The germanium of the Si1-xGex layer is condensed on the island to obtain an island comprising a layer that is enriched in germanium, or even a layer of germanium, on the insulating layer, with a silicon oxide layer on top of it.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: August 2, 2011
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Benjamin Vincent, Laurent Clavelier, Jean-Francois Damlencourt
  • Patent number: 7986029
    Abstract: A semiconductor structure having a hybrid crystal orientation is provided. The semiconductor structure includes an insulator layer, e.g., a buried oxide (BOX), on a first semiconductor layer, and a second semiconductor layer on the buried oxide, wherein the first and second semiconductor layers have a first and a second crystal orientation, respectively. A first region of the second semiconductor layer is replaced with an epitaxially grown layer of the first semiconductor layer, thereby providing a substrate having a first region with a first crystal orientation and a second region with a second crystal orientation. An isolation structure is formed to isolate the first and second regions. Thereafter, NMOS and PMOS transistors may be formed on the substrate in the region having the crystal orientation that is the most appropriate.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: July 26, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chiang-Ming Chuang, Kuang-Hsin Chen, I-Lu Wu
  • Publication number: 20110175163
    Abstract: A semiconductor device is provided that in one embodiment includes at least one semiconductor fin structure atop a dielectric surface, the semiconductor fin structure including a channel region of a first conductivity type and source and drain regions of a second conductivity type, in which the source and drain regions are present at opposing ends of the semiconductor fin structure. A high-k gate dielectric layer having a thickness ranging from 1.0 nm to 5.0 nm is in direct contact with the channel of the semiconductor fin structure. At least one gate conductor layer is in direct contact with the high-k gate dielectric layer. A method of forming the aforementioned device is also provided.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 21, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Eduard A. Cartier, Kangguo Cheng, Bruce B. Doris, Ying Zhang
  • Publication number: 20110169082
    Abstract: A method of forming an electrical device is provided that includes forming at least one semiconductor device on a first semiconductor layer of the SOI substrate. A handling structure is formed contacting the at least one semiconductor device and the first semiconductor layer. A second semiconductor layer and at least a portion of the dielectric layer of the SOI substrate are removed to provide a substantially exposed surface of the first semiconductor layer. A retrograded well may be formed by implanting dopant through the substantially exposed surface of the first semiconductor layer into a first thickness of the semiconductor layer that extends from the substantially exposed surface of the semiconductor layer, wherein a remaining thickness of the semiconductor layer is substantially free of the retrograded well dopant. The retrograded well may be laser annealed.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 14, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Huilong Zhu, Zhijiong Luo, Qingqing Liang, Haizhou Yin
  • Publication number: 20110169088
    Abstract: A device and method is provided that in one embodiment provides a first semiconductor device including a first gate structure on a first channel region, in which a first source region and a first drain region are present on opposing sides of the first channel region, in which a metal nitride spacer is present on only one side of the first channel region. The device further includes a second semiconductor device including a second gate structure on a second channel region, in which a second source region and a second drain region are present on opposing sides of the second channel region. Interconnects may be present providing electrical communication between the first semiconductor device and the second semiconductor device, in which at least one of the first semiconductor device and the second semiconductor device is inverted. A structure having a reverse halo dopant profile is also provided.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Huilong Zhu, Zhijiong Luo, Qingqing Liang, Haizhou Yin
  • Patent number: 7977172
    Abstract: A method for fabricating a memory cell is provided. A trench is formed in a semiconductor structure that comprises a semiconductor layer, and a trench capacitor is formed in the trench. Conductivity determining impurities are implanted into the semiconductor structure to create a well region in the semiconductor layer that is directly coupled to the trench capacitor. A gate structure is formed overlying a portion of the well region. Conductivity determining ions are then implanted into other portions of the well region to form a source region and a drain region, and to define an active body region between the source region and the drain region. The active body region directly contacts the trench capacitor.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: July 12, 2011
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Hyun-Jin Cho, Sang H. Dhong, Jung-Suk Goo, Gurupada Mandal
  • Patent number: 7977128
    Abstract: An etchant for forming double-layered signal lines and electrodes of a liquid crystal display device includes hydrogen peroxide (H2O2), a phosphate, F-ions, an organic acid having a carboxyl group (—COOH), a copper (Cu) inhibitor, and a hydrogen peroxide (H2O2) stabilizer, wherein each of the double-layered signal lines and electrodes of the liquid crystal display device includes a first layer of one of aluminum (Al), aluminum alloy (Al-alloy), titanium (Ti), titanium alloy (Ti-alloy), tantalum (Ta), and a tantalum alloy (Ta-alloy) and a second layer of copper (Cu).
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: July 12, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Won-Ho Cho, Gyoo-Chul Jo, Gue-Tai Lee, Jin-Gyu Kang, Beung-Hwa Jeong, Jin-Young Kim
  • Publication number: 20110140230
    Abstract: The present invention relates to a method of forming a SOI structure having a thin silicon layer by forming a first etch stop layer on a donor substrate, forming a second etch stop layer on the first etch stop layer, wherein the material of the second etch stop layer differs from the material of the first etch stop layer, forming a thin silicon layer on the second etch stop layer, preferably by epitaxy, and bonding the intermediate structure to a target substrate, followed by detaching the donor substrate by splitting initiated in the first etch stop layer at a weakened region and removing the remaining material of the etch stop layers to produce a final ETSOI structure. The invention also relates to the ETSOI structure produces by the described method.
    Type: Application
    Filed: November 30, 2010
    Publication date: June 16, 2011
    Inventors: Nicolas Daval, Cecile Aulnette
  • Patent number: 7955915
    Abstract: The present invention discloses an organic field effect transistor and a manufacturing method thereof. The organic field effect transistor comprises a top-contact type or a bottom-contact type, and the manufacturing method thereof comprises the following steps: a substrate is provided, a metal gate is formed on the substrate, an inorganic insulating layer is formed on the substrate and the metal gate, a surface of the insulating layer is polished, an organic filler is filled in pores on the insulating layer as an insulating treatment, a modified layer is formed on the inorganic insulating layer, and finally an organic semiconductor layer, a source and a drain are formed. By combining the advantages of simply liquefied process of the organic material and the high stability of inorganic material, and operation conditions of control process, the present invention can achieve effectively that the device is high carrier mobility and high on/off ratio.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: June 7, 2011
    Assignee: National Tsing Hua University
    Inventors: Chien-Cheng Liu, Hsin-Fei Meng, Sheng-Fu Horng
  • Patent number: 7955912
    Abstract: Formation of LDD structures and GOLD structures in a semiconductor device is conventionally performed in a self aligning manner with gate electrodes as masks, but there are many cases in which the gate electrodes have two layer structures, and film formation processes and etching processes become complex. Further, in order to perform formation of LDD structures and GOLD structures only by processes such as dry etching, the transistor structures all have the same structure, and it is difficult to form LDD structures, GOLD structures, and single drain structures separately for different circuits.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: June 7, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideto Ohnuma, Ichiro Uehara
  • Publication number: 20110127608
    Abstract: A method of fabricating a semiconductor device is provided in which the channel of the device is present in an extremely thin semiconductor-on-insulator (ETSOI) layer, i.e., a semiconductor layer having a thickness of less than 20 nm. In one embodiment, the method begins with forming a first semiconductor layer and epitaxially growing a second semiconductor layer on a handling substrate. A first gate structure is formed on a first surface of the second semiconductor layer and source regions and drain regions are formed adjacent to the gate structure. The handling substrate and the first semiconductor layer are removed to expose a second surface of the second semiconductor layer that is opposite the first surface of the semiconductor layer. A second gate structure or a dielectric region is formed in contact with the second surface of the second semiconductor layer.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kangguo Cheng, Bruce B. Doris, Ghavam G. Shahidi
  • Publication number: 20110127529
    Abstract: Disclosed is semiconductor structure with an insulator layer on a semiconductor substrate and a device layer is on the insulator layer. The substrate is doped with a relatively low dose of a dopant having a given conductivity type such that it has a relatively high resistivity. Additionally, a portion of the semiconductor substrate immediately adjacent to the insulator layer can be doped with a slightly higher dose of the same dopant, a different dopant having the same conductivity type or a combination thereof. Optionally, micro-cavities are created within this same portion so as to balance out any increase in conductivity due to increased doping with a corresponding increase in resistivity. Increasing the dopant concentration at the semiconductor substrate-insulator layer interface raises the threshold voltage (Vt) of any resulting parasitic capacitors and, thereby reduces harmonic behavior. Also disclosed herein are embodiments of a method for forming such a semiconductor structure.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: International Business Machines Corporation
    Inventors: Alan B. Botula, John J. Ellis-Monaghan, Alvin J. Joseph, Max G. Levy, Richard A. Phelps, James A. Slinkman, Randy L. Wolf
  • Patent number: 7951657
    Abstract: Disclosed are embodiments of a method of forming, on an SOI wafer, a planar FET with embedded and faceted source/drain stressors. The method incorporates a directional ion implant process to create amorphous regions at the bottom surfaces of source/drain recesses in a single crystalline semiconductor layer of an SOI wafer. Then, an etch process selective to different crystalline planes over others and further selective to single crystalline semiconductor material over amorphous semiconductor material can be performed in order to selectively adjust the shape (i.e., the profile) of the recess sidewalls without increasing the depth of the recesses. Subsequently, an anneal process can be performed to re-crystallize the amorphous regions and an epitaxial deposition process can be used to fill the recesses with source/drain stressor material. Also disclosed are embodiments of a planar FET structure and a design structure for the planar FET.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: May 31, 2011
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Johnathan E. Faltermeier, Toshiharu Furukawa, Xuefeng Hua
  • Patent number: 7951692
    Abstract: There is provided a method for suppressing the occurrence of defects such as voids or blisters even in the laminated wafer having an oxide film of a thickness thinner than the conventional one, wherein hydrogen ions are implanted into a wafer for active layer having an oxide film of not more than 50 nm in thickness to form a hydrogen ion implanted layer, and ions other than hydrogen are implanted up to a position that a depth from the surface side the hydrogen ion implantation is shallower than the hydrogen ion implanted layer, and the wafer for active layer is laminated onto a wafer for support substrate through the oxide film, and then the wafer for active layer is exfoliated at the hydrogen ion implanted layer.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: May 31, 2011
    Assignee: Sumco Corporation
    Inventors: Satoshi Murakami, Nobuyuki Morimoto, Hideki Nishihata, Akihiko Endo
  • Patent number: 7943957
    Abstract: A diode 10 comprises an SOI substrate in which are stacked a semiconductor substrate 20, an insulator film 30, and a semiconductor layer 40. A bottom semiconductor region 60, an intermediate semiconductor region 53, and a surface semiconductor region 54 are formed in the semiconductor layer 40. The bottom semiconductor region 60 includes a high concentration of n-type impurity. The intermediate semiconductor region 53 includes a low concentration of n-type impurity. The surface semiconductor region 54 includes p-type impurity.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: May 17, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masato Taki, Masahiro Kawakami, Kiyoharu Hayakawa, Masayasu Ishiko
  • Patent number: 7943414
    Abstract: An object of an embodiment of the present invention to be disclosed is to prevent oxygen from being taken in a single crystal semiconductor layer in laser irradiation even when crystallinity of the single crystal semiconductor layer is repaired by irradiation with a laser beam; and to make substantially equal or reduce an oxygen concentration in the semiconductor layer after the laser irradiation comparing before the laser irradiation. A single crystal semiconductor layer which is provided over a base substrate by bonding is irradiated with a laser beam, whereby the crystallinity of the single crystal semiconductor layer is repaired. The laser irradiation is performed under a reducing atmosphere or an inert atmosphere.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: May 17, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Akihisa Shimomura, Hideto Ohnuma, Junpei Momo, Shunpei Yamazaki
  • Patent number: 7939863
    Abstract: Analog ICs frequently include circuits which operate over a wide current range. At low currents, low noise is important, while IC space efficiency is important at high currents. A vertically integrated transistor made of a JFET in parallel with an MOS transistor, sharing source and drain diffused regions, and with independent gate control, is disclosed. N-channel and p-channel versions may be integrated into common analog IC flows with no extra process steps, on either monolithic substrates or SOI wafers. pinchoff voltage in the JFET is controlled by photolithographically defined spacing of the gate well regions, and hence exhibits low variability.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: May 10, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Pinghai Hao, Marie Denison
  • Patent number: 7939393
    Abstract: Different performance MOSFET Fully Depleted devices can be achieved on a single chip by varying the Vt through ion implantation. The integration of multiple Vt can be achieved through the selection of a metal gate stack with suitable effective WF for one semiconductor device to be included on a chip. Then, an ion implantation, with a dopant such as F, can be selectively performed to achieve proper Vt for other semiconductor devices on the chip.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: May 10, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Weize Xiong, Cloves Rinn Cleavelin
  • Patent number: 7935585
    Abstract: A method for fabricating a semiconductor device, comprising: forming a semiconductor film on a substrate; and recrystallizing the semiconductor film using as a heat source flame of a gas burner that uses hydrogen and oxygen gas mixture as a fuel.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: May 3, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Mitsuru Sato, Sumio Utsunomiya
  • Publication number: 20110095366
    Abstract: Solutions for forming an extremely thin semiconductor-on-insulator (ETSOI) layer are disclosed. In one embodiment, a method includes providing a wafer including a plurality of semiconductor-on-insulator (SOI) layer regions separated by at least one shallow trench isolation (STI); amorphizing the plurality of SOI layer regions by implanting the plurality of SOI layer regions with an implant species; and removing a portion of the amorphized SOI layer region to form at least one recess in the amorphized SOI layer region.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Wagdi W. Abadeer, Lilian Kamal, Kiran V. Chatty, Jason E. Cummings, Toshiharu Furukawa, Robert J. Gauthier, JR., Jed H. Rankin, Robert R. Robison, William R. Tonti
  • Patent number: 7932575
    Abstract: A method for fabricating a back-illuminated semiconductor imaging device on a semiconductor-on-insulator substrate, and resulting imaging device is disclosed. The method for manufacturing the imaging device includes the steps of providing a substrate comprising an insulator layer, and an epitaxial layer substantially overlying the insulator layer; fabricating at least one imaging component at least partially overlying and extending into the epitaxial layer; forming a plurality of bond pads substantially overlying the epitaxial layer; fabricating a dielectric layer substantially overlying the epitaxial layer and the at least one imaging component; providing a handle wafer; forming a plurality of conductive trenches in the handle wafer; forming a plurality of conductive bumps on a first surface of the handle wafer substantially underlying the conductive trenches; and bonding the plurality of conductive bumps to the plurality of bond pads.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: April 26, 2011
    Assignee: SRI International
    Inventors: Mahalingam Bhaskaran, Pradyumna Kumar Swain, Peter Levine, Norman Goldsmith
  • Patent number: 7927979
    Abstract: Techniques are disclosed that facilitate fabrication of semiconductors including structures and devices of varying thickness. One embodiment provides a method for semiconductor device fabrication that includes thinning a region of a semiconductor wafer upon which the device is to be formed thereby defining a thin region and a thick region of the wafer. The method continues with forming on the thick region one or more photonic devices and/or partially depleted electronic devices, and forming on the thin region one or more fully depleted electronic devices. Another embodiment provides a semiconductor device that includes a semiconductor wafer defining a thin region and a thick region. The device further includes one or more photonic devices and/or partially depleted electronic devices formed on the thick region, and one or more fully depleted electronic devices formed on the thin region. An isolation area can be formed between the thin region and the thick region.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: April 19, 2011
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Craig M. Hill, Andrew T S Pomerene, Daniel N. Carothers, Timothy J. Conway, Vu A. Vu
  • Publication number: 20110084367
    Abstract: A method of producing an epitaxial wafer, comprising: implanting oxygen ions from a surface of a silicon wafer, thereby forming an ion implanted layer in a surface layer of the silicon wafer; after forming the ion implanted layer, implanting boron ions from the surface of the silicon wafer to the whole area in the ion implanted layer; performing heat treatment of the silicon wafer after implanting boron ions, thereby forming a thinning-stopper layer including a mixture of silicon particles, silicon oxides, and boron, and forming an active layer in the silicon wafer on the surface side of the thinning-stopper layer; and forming an epitaxial layer on the surface of the silicon wafer after the heat treatment.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 14, 2011
    Applicant: SUMCO CORPORATION
    Inventors: Hideki NISHIHATA, Yoshihisa NONOGAKI, Akihiko ENDO
  • Publication number: 20110079852
    Abstract: The present disclosure provides a semiconductor device and method of fabricating a semiconductor device. In an embodiment, the semiconductor device is a finFET device. In an embodiment, the semiconductor device is a silicon on insulator (SOI) device. A method of fabricating the semiconductor device includes providing a substrate, forming an oxide layer on the substrate, forming a fin on a portion of the oxide layer, forming a high k dielectric layer on a portion of the oxide layer and on a portion of the fin, forming a tuned, stressed metal gate on the dielectric layer, and forming a poly-cap on the metal gate. The method of fabrication provided may allow use of SOI substrate or bulk silicon substrates.
    Type: Application
    Filed: October 7, 2009
    Publication date: April 7, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd., ("TSMC")
    Inventor: Robert James Pascoe Lander
  • Publication number: 20110079851
    Abstract: Disclosed is an SOI device on a bulk silicon layer which has an FET region, a body contact region and an STI region. The FET region is made of an SOI layer and an overlying gate. The STI region includes a first STI layer separating the SOI device from an adjacent SOI device. The body contact region includes an extension of the SOI layer, a second STI layer on the extension and a body contact in contact with the extension. The first and second STI layers are contiguous and of different thicknesses so as to form a split level STI.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: YING LI, Shreesh Narasimha, Werner A. Rausch
  • Patent number: 7919391
    Abstract: The invention concerns a method of treating one or both bonding surfaces of first and second substrates and in particular, the surfaces of donor and receiver wafers that are intended to be bonded together. A simultaneous cleaning and activation step is carried out immediately prior to bonding the wafers together, by applying to one or both bonding surfaces an activation solution of ammonia (NH4OH) in water, preferably deionized, at a concentration by weight in the range from about 0.05% to 2%. The method is applicable to fabricating structures used in the optics, electronics, or optoelectronics fields.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: April 5, 2011
    Assignee: S.O.I.Tec Silicon on Insulator Technologies
    Inventors: Cécile Delattre, Frédéric Metral, Daniel Delprat, Christophe Maleville
  • Publication number: 20110073919
    Abstract: The present disclosure provides a FinFET device and method of fabricating a FinFET device. The method includes providing a substrate, forming a fin structure on the substrate, forming a gate structure including a gate dielectric and gate electrode, the gate structure overlying a portion of the fin structure, forming a protection layer over another portion of the fin structure, and thereafter performing an implantation process to form source and drain regions.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Bartlomiej Jan Pawlak
  • Publication number: 20110070719
    Abstract: A method of manufacturing a semiconductor device, the method comprising: taking an SOI substrate comprising a bulk substrate, a buried insulating layer and an active layer, and implanting the bulk substrate from the side of and through the insulating layer and the active layer so as to generate an area having an increased doping concentration in the bulk substrate at the interface between the bulk substrate and the insulating layer.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 24, 2011
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Wolfgang SCHWARTZ, Alfred HAEUSLER, Vladimir Frank DROBNY
  • Patent number: 7910395
    Abstract: An LED structure includes a first substrate; an adhering layer formed on the first substrate; first ohmic contact layers formed on the adhering layer; epi-layers formed on the first ohmic contact layers; a first isolation layer covering the first ohmic contact layers and the epi-layers at exposed surfaces thereof; and first electrically conducting plates and second electrically conducting plates, both formed in the first isolation layer and electrically connected to the first ohmic contact layers and the epi-layers, respectively. The trenches allow the LED structure to facilitate complex serial/parallel connection so as to achieve easy and various applications of the LED structure in the form of single structures under a high-voltage environment.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: March 22, 2011
    Assignee: Helio Optoelectronics Corporation
    Inventors: Shih-Chang Shei, Ming-Hung Chen, Shih-Yi Wen, Chun-Che Lee