With Means To Control Surface Effects Patents (Class 257/629)
  • Publication number: 20100181652
    Abstract: Systems and methods for reducing stiction between elements of a microelectromechanical systems (MEMS) device during anodic bonding. The MEMS device includes a substrate cover with an optional conductor on its interior surface and the cover is anchored to a first portion of a sensing element. The MEMS device further includes a second portion of the sensing element separated from the substrate cover with a space and an antistiction element disposed between the second portion and cover. The antistiction element can be formed of a material type with high electrostatic resistance, to prevent stiction between MEMS device elements during anodic bonding.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 22, 2010
    Applicant: Honeywell International Inc.
    Inventors: Chris Milne, Jeff A. Ridley, Galen Magendanz, Marcos Daniel Ruiz
  • Publication number: 20100181653
    Abstract: The invention relates to a method for recycling a substrate with a step-like residue in a first region of its surface, in particular along the edge of the substrate, which protrudes with respect to the surface of a remaining second region of the substrate, and wherein the first region comprises a modified zone, in particular an ion implanted zone, essentially in a plane corresponding to the plane of the surface of the remaining second region of the substrate and/or chamfered towards the edge of the substrate. To prevent the negative impact of contaminants in subsequent laminated wafer fabricating processes, the recycling method comprises a material removal step which is carried out such that the surface of the substrate in the first region is lying lower than the level of the modified zone before the material removal.
    Type: Application
    Filed: June 24, 2008
    Publication date: July 22, 2010
    Applicant: S.O.I.TEC SILICON ON INSULATOR TECHNOLOGIES, S.A.
    Inventors: Cecile Aulnette, Khalid Radouane
  • Patent number: 7755085
    Abstract: A semiconductor device has an IC chip with a thickness of equal to or less than 100 ?m and includes a semiconductor substrate. A device forming region is within the depth of approximately equal to or less than 5 ?m from a surface of the semiconductor substrate, and a total thickness of the semiconductor substrate is from 5 ?m to 100 ?m. A BMD layer for carrying out gettering of metal impurities is provided immediately under the device forming region. Since a gettering site is provided immediately under the device forming region, in a device or the like of which extreme thinness is required, degradation of device characteristics and reliability due to contamination of metal impurities can be prevented, and stabilize and improve the device yield.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: July 13, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuhiro Takahi, Kazuhiro Moritani
  • Patent number: 7743963
    Abstract: A solderable cover for solder attachment to an electronic substrate comprises a non-solderable cover defining an attachment pattern, a solderable metal layer in the shape of the attachment pattern, and a layer of adhesive bonding the solderable metal layer to the attachment pattern of the non-solderable cover, wherein the adhesive exhibits bond strength and resiliency sufficient to maintain the solderable metal layer attached to the non-solderable cover when raised in temperature to a melting temperature of a solder.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: June 29, 2010
    Assignee: Amerasia International Technology, Inc.
    Inventor: Kevin Kwong-Tai Chung
  • Publication number: 20100148321
    Abstract: The present invention discloses a MEMS device with particles blocking function, and a method for making the MEMS device. The MEMS device comprises: a substrate on which is formed a MEMS device region; and a particles blocking layer deposited on the substrate.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Inventors: CHUAN WEI WANG, SHENG TA LEE
  • Patent number: 7723801
    Abstract: A semiconductor device including a semiconductor substrate having source/drain regions, a gate electrode formed on and/or over the semiconductor substrate, spacers formed against sidewalls of the gate electrode, an interlayer insulating layer formed over the semiconductor substrate and the gate electrode and having a plurality of contact holes formed therein, and contact plugs formed within the contact holes. The contact plugs can include a first contact plug and a second contact plug electrically connected to the gate electrode, and a third contact plug and a fourth contact plug electrically connected to the source/drain regions.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 25, 2010
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Jung-Ho Ahn
  • Patent number: 7714360
    Abstract: A high electron mobility transistor is disclosed which has a main semiconductor region formed on a silicon substrate. The main semiconductor region is a lamination of a buffer layer on the substrate, an electron transit layer on the buffer layer, and an electron supply layer on the electron transit layer. A source, drain, and gate overlie the electron supply layer. Also formed on the electron supply layer is a surface-stabilizing organic semiconductor overlay which is of p conductivity type in contrast to the n type of the electron supply layer.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: May 11, 2010
    Assignee: Sanken Electric Co., Ltd.
    Inventors: Koji Otsuka, Osamu Machida, Hitoshi Murofushi
  • Patent number: 7705350
    Abstract: A method and system of fractional biasing of semiconductors. A small negative voltage is applied to the back of a semiconductor wafer or device. An operating voltage is applied to the semiconductor. Operating characteristics of the semiconductor are enhanced by application of a fractional bias.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: April 27, 2010
    Inventor: David Kuei
  • Publication number: 20100090320
    Abstract: Disclosed are embodiments of a wafer that incorporates fill structures with varying configurations to provide uniform reflectance. Uniform reflectance is achieved by distributing across the wafer fill structures having different semiconductor materials such that approximately the same ratio and density between the different semiconductor materials is achieved within each region and, optimally, each sub-region. Alternatively, it is achieved by distributing across the wafer fill structures, including one or more hybrid fill structure containing varying proportions of different semiconductor materials, such that approximately the same ratio between the different semiconductor materials is achieved within each region and, optimally, each sub-region.
    Type: Application
    Filed: December 10, 2009
    Publication date: April 15, 2010
    Applicant: International Business Machines Corporation
    Inventors: Brent A. Anderson, Edward J. Nowak
  • Patent number: 7692275
    Abstract: Disclosed are embodiments of a wafer that incorporates fill structures with varying configurations to provide uniform reflectance. Uniform reflectance is achieved by distributing across the wafer fill structures having different semiconductor materials such that approximately the same ratio and density between the different semiconductor materials is achieved within each region and, optimally, each sub-region. Alternatively, it is achieved by distributing across the wafer fill structures, including one or more hybrid fill structure containing varying proportions of different semiconductor materials, such that approximately the same ratio between the different semiconductor materials is achieved within each region and, optimally, each sub-region.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: April 6, 2010
    Assignee: International Business Machines Corporation
    Inventors: Brent A. Anderson, Edward J. Nowak
  • Publication number: 20100078642
    Abstract: A layered structure comprises a variable wettability layer including a material that changes a critical surface tension in response to energy provided thereto, the wettability changing layer including at least a high surface energy part of large critical surface tension and a low surface energy part of low critical surface tension, a conductive layer formed on the variable wettability layer at the high surface energy tension part, and a semiconductor layer formed on the variable wettability layer at the low surface energy part.
    Type: Application
    Filed: August 26, 2009
    Publication date: April 1, 2010
    Inventors: Takanori TANO, Koh Fujimura, Hidenori Tomono, Hitoshi Kondoh
  • Patent number: 7687890
    Abstract: Methods and apparatus to control surface properties via colloidal coatings are described. In one embodiment, colloidal coating may be used on a surface to enhance flow control. Other embodiments are also described.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: March 30, 2010
    Assignee: Intel Corporation
    Inventors: Gopalakrishnan Subramanian, Nirupama Chakrapani, Larry DeCesare, Shripad Gokhale, Jason Murphy, Jinlin Wang
  • Publication number: 20100065930
    Abstract: The method of etching a sacrificial layer according to the present invention includes the steps of forming a sacrificial layer having a protrusive shape on a base layer, forming a covering film covering the sacrificial layer, forming a protective film made of a material whose etching selection ratio to the sacrificial layer is greater than the etching selection ratio of the covering film to the sacrificial layer on a portion of the covering film opposed to the side surface of the sacrificial layer, and etching the sacrificial layer after the formation of the protective film.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 18, 2010
    Applicant: ROHM CO., LTD.
    Inventor: Goro Nakatani
  • Patent number: 7659207
    Abstract: Epitaxially coated silicon wafers, are coated individually in an epitaxy reactor by placing a wafer on a susceptor, pretreating under a hydrogen atmosphere, in and then with addition of an etching medium, and coating epitaxially on a polished front side, wherein an etching treatment of the susceptor is effected after a specific number of epitaxial coatings, and the susceptor is then hydrophilized. Silicon wafer produced thereby have a maximum local flatness value SFQRmax of 0.01 ?m to 0.035 ?m relative to at least 99% of the partial regions of an area grid of measurement windows having a size of 26×8 mm2 on the front side of the silicon wafer with an edge exclusion of 2 mm.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: February 9, 2010
    Assignee: Siltronic AG
    Inventors: Reinhard Schauer, Thorsten Schneppensieper
  • Patent number: 7651956
    Abstract: A process for forming a thin layer exhibiting a substantially uniform property on an active surface of a semiconductor substrate. The process includes varying the temperature within a reaction chamber while a layer of a material is formed upon the semiconductor substrate. Varying the temperature within the reaction chamber facilitates temperature uniformity across the semiconductor wafer. As a result, a layer forming reaction occurs at a substantially consistent rate over the entire active surface of the semiconductor substrate. The process may also include oscillating the temperature within the reaction chamber while a layer of a material is being formed upon a semiconductor substrate.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: January 26, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Garry Anthony Mercaldi, Don Carl Powell
  • Patent number: 7642585
    Abstract: Memory cells comprising: a semiconductor substrate having a source region and a drain region disposed below a surface of the substrate and separated by a channel region; a tunnel dielectric structure disposed above the channel region, the tunnel dielectric structure comprising at least one layer having a small hole-tunneling-barrier height; a charge storage layer disposed above the tunnel dielectric structure; an insulating layer disposed above the charge storage layer; and a gate electrode disposed above the insulating layer are described along with arrays thereof and methods of operation.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: January 5, 2010
    Assignee: Macronix International Co., Ltd.
    Inventors: Szu Yu Wang, Hang-Ting Lue
  • Publication number: 20090294918
    Abstract: In a state where a semiconductor wafer is not acted upon by its own weight, a shear stress on a rear surface side portion of the semiconductor wafer is higher than that on a front surface side portion of the semiconductor wafer, in a compression direction. Thereby, sag of the semiconductor wafer is reduced when the semiconductor wafer is simple-supported in a horizontal state.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 3, 2009
    Applicant: SUMCO CORPORATION
    Inventors: Takeo KATOH, Kazushige TAKAISHI
  • Patent number: 7615497
    Abstract: A method for forming a fine pattern of a semiconductor device includes forming a deposition film over a substrate having an underlying layer. The deposition film includes first, second, and third mask films. The method also includes forming a photoresist pattern over the third mask film, patterning the third mask film to form a deposition pattern, and forming an amorphous carbon pattern at sidewalls of the deposition pattern. The method further includes filling a spin-on-carbon layer over the deposition pattern and the amorphous carbon pattern, polishing the spin-on-carbon layer, the amorphous carbon pattern, and the photoresist pattern to expose the third mask pattern, and performing an etching process to expose the first mask film with the amorphous carbon pattern as an etching mask. The etching process removes the third mask pattern and the exposed second mask pattern.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: November 10, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventors: Cheol Kyu Bok, Keun Do Ban
  • Patent number: 7612433
    Abstract: A method of manufacturing semiconductor devices having self-aligned contacts is provided. Multiple isolation structures are formed on the substrate to define an active area. Multiple gate structures are formed on the substrate. Multiple doped areas are formed in the substrate beside each gate structure. Multiple first spacers are formed on the sidewalls of each of the gate structure. Multiple second spacers are formed on the sidewalls of each of the isolation structure. A dielectric layer is formed on the substrate. Then, a self-aligned process is performed to form multiple contact openings in the dielectric layer between the gate structures. The conductive material is filled in the contact openings.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: November 3, 2009
    Assignee: Powerchip Semiconductor Corp.
    Inventors: Min-San Huang, Hann-Jye Hsu, Yung-Chung Yao
  • Publication number: 20090267197
    Abstract: A semiconductor device for preventing the leaning of storage nodes and a method of manufacturing the same is described. The semiconductor device includes support patterns that are formed to support a plurality of cylinder type storage nodes. The support patterns are formed of a BN layer and have a hexagonal structure. The BN layer forming the support patterns has compressive stress as opposed to tensile stress and can therefore withstand cracking in the support patterns.
    Type: Application
    Filed: July 9, 2008
    Publication date: October 29, 2009
    Inventors: Hun KIM, Byung Soo EUN
  • Patent number: 7598595
    Abstract: A nanoporous antireflection coating preparation method. A sol-gel precursor solution containing an organic template is coated onto a substrate. The sol-gel precursor solution containing the organic template is dried into a film. The organic template within the film is then removed to form a nanoporous antireflection coating. In preferred embodiments, the organic template is removed by UV—O3 treatment at ambient temperature.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: October 6, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Kuei-jung Chao, Kuo-ying Huang, Shu Fang Chen
  • Publication number: 20090236699
    Abstract: An integrated circuit and methods of forming and using the integrated circuit. The circuit includes: a radiation-emitting layer over a selected region of a top surface of an integrated circuit chip, the radiation emitting layer comprising a first polymer or resin and a first radioactive material, the region smaller than a whole of the top surface of the integrated circuit chip, the region including a circuit that is liable to temporary failure when struck by radiation generated by the first radioactive material.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 24, 2009
    Inventors: Michael S. Gordon, Nancy C. LaBianca, Kenneth P. Rodbell
  • Publication number: 20090218661
    Abstract: A silicon substrate is manufactured from single-crystal silicon which is grown to have a carbon concentration equal to or higher than 1.0×1016 atoms/cm3 and equal to or lower than 1.6×1017 atoms/cm3 and an initial oxygen concentration equal to or higher than 1.4×1018 atoms/cm3 and equal to or lower than 1.6×1018 atoms/cm3 by a CZ method. A device is formed on a front, the thickness of the silicon substrate is equal to or more than 5 ?m and equal to or less than 40 ?m, and extrinsic gettering which produces residual stress equal to or more than 5 Mpa and equal to or less than 200 Mpa is applied to a back face of the substrate.
    Type: Application
    Filed: February 24, 2009
    Publication date: September 3, 2009
    Applicant: SUMCO CORPORATION
    Inventors: Kazunari Kurita, Shuichi Omote
  • Patent number: 7564119
    Abstract: An adhesive sheet for laser dicing is used for dicing a workpiece into individual chips by light absorption ablation of laser beam and has at least an adhesive layer on one side of a base material which has a surface opposite to the adhesive layer having no convex parts of width (W) of 20 mm or less and height (h) of 1 ?m or more, or no concave parts of width (W) of 20 mm or less and depth (d) of 1 ?m or more.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: July 21, 2009
    Assignee: Nitto Denko Corporation
    Inventor: Yuji Okawa
  • Publication number: 20090173950
    Abstract: A method comprising: providing at least one first diamond film comprising polycrystalline diamond, e.g., nanocrystalline or ultrananocrystalline diamond, disposed on a substrate, wherein the first diamond film comprises a surface comprising diamond asperities and having a first diamond film thickness, removing asperities from the first diamond film to form a second diamond film having a second diamond film thickness, wherein the second thickness is either substantially the same as the first thickness, or the second thickness is about 100 nm or less thinner than the first diamond film thickness, optionally patterning the second diamond film to expose substrate regions and, optionally, depositing semiconductor material on the exposed substrate regions, and depositing a solid layer on the second diamond film to form a first layered structure.
    Type: Application
    Filed: January 2, 2009
    Publication date: July 9, 2009
    Inventors: Charles West, John Carlisle, James Netzel, Ian Wylie, Neil Kane
  • Publication number: 20090166812
    Abstract: The present invention relates generally to semiconductors, material layers within semiconductors, a production method of semiconductors, and a manufacturing arrangement for producing semiconductors. A semiconductor according to the invention includes at least one layer with a surface, produced by laser ablation, wherein the uniform surface area to be produced includes at least an area 0.2 dm2 and the layer has been produced by employing ultra short pulsed laser deposition wherein pulsed laser beam is scanned with a rotating optical scanner including at least one mirror for reflecting the laser beam.
    Type: Application
    Filed: February 23, 2007
    Publication date: July 2, 2009
    Applicant: PICODEON LTD OY
    Inventors: Jari Ruuttu, Reijo Lappalainen, Vesa Myllymaki, Lasse Pulli, Juha Makitalo
  • Publication number: 20090152685
    Abstract: An epitaxial wafer comprises a silicon substrate, a gettering epitaxial film formed thereon and containing silicon and carbon, and a main silicon epitaxial film formed on the gettering epitaxial film, in which the gettering epitaxial film has a given carbon atom concentration and carbon atoms are existent between its silicon lattices.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 18, 2009
    Applicant: SUMCO CORPORATION
    Inventors: Naoshi Adachi, Tamio Motoyama
  • Patent number: 7545025
    Abstract: Disclosed is a semiconductor device which includes a semiconductor chip and a base substrate. The semiconductor chip includes a semiconductor substrate, an interconnect layer and a high-frequency interconnect. The interconnect layer is provided on the substrate. The high-frequency interconnect is formed within the interconnect layer. The semiconductor chip is mounted onto the base substrate. An electromagnetic shield layer is provided between the high-frequency interconnect and the interconnect.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: June 9, 2009
    Assignee: NEC Electronics Corporation
    Inventor: Yasutaka Nakashiba
  • Patent number: 7544984
    Abstract: One aspect of this disclosure relates to a memory device, comprising at least one gettering region, a memory array, a plurality of word lines and bit lines, and control circuitry. The gettering region is formed in a semiconductor substrate. The gettering region includes a precise arrangement of precisely-formed voids to getter impurities from a crystalline semiconductor region of the substrate. The memory array is formed in the crystalline semiconductor region, and includes a plurality of memory cells formed in rows and columns, and at least one transistor for each of the plurality of memory cells. Each word line is connected to a row of memory cells, and each bit line is connected to a column of memory cells. The control circuitry includes word line select circuitry and bit line select circuitry to select a number of memory cells for writing and reading operations.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: June 9, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Leonard Forbes, Joseph E. Geusic
  • Publication number: 20090108412
    Abstract: A semiconductor substrate includes: a silicon support substrate with a first crystal orientation; a silicon functional substrate which is formed on the silicon support substrate and which has a first crystalline region with a crystal orientation different from the first crystal orientation of the silicon support substrate and a second crystalline region with a crystal orientation equal to the first crystal orientation of the silicon support substrate; and a defect creation-preventing region formed at an interface between the first crystalline region and the second crystalline region of the silicon functional substrate so as to be at least elongated to a main surface of the silicon support substrate.
    Type: Application
    Filed: October 27, 2008
    Publication date: April 30, 2009
    Inventors: Hiroshi ITOKAWA, Ichiro MIZUSHIMA, Akiko NOMACHI, Yoshitaka TSUNASHIMA
  • Patent number: 7525189
    Abstract: A wiring board (20) includes a first wiring portion (10) having a plurality of wiring layers (1) and a plurality of external connecting bumps (5), and a second wiring portion (15) integrated with the first wiring portion in the direction of thickness. The thermal expansion coefficient of the second wiring portion is made smaller than that of the first wiring portion, and equal to that of a semiconductor chip (30) to be mounted on the wiring board. This suppresses the internal stress resulting from the thermal expansion coefficient difference between the semiconductor chip and wiring board, and increases the reliability of a semiconductor device (50) obtained by mounting the semiconductor chip on the wiring board. The sizes of the opposing surfaces of the first and second wiring portions are also made equal.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: April 28, 2009
    Assignee: NEC Corporation
    Inventor: Masamoto Tago
  • Publication number: 20090102024
    Abstract: A semiconductor device has an IC chip with a thickness of equal to or less than 100 ?m and includes a semiconductor substrate. A device forming region is within the depth of approximately equal to or less than 5 ?m from a surface of the semiconductor substrate, and a total thickness of the semiconductor substrate is from 5 ?m to 100 ?m. A BMD layer for carrying out gettering of metal impurities is provided immediately under the device forming region. Since a gettering site is provided immediately under the device forming region, in a device or the like of which extreme thinness is required, degradation of device characteristics and reliability due to contamination of metal impurities can be prevented, and stabilize and improve the device yield.
    Type: Application
    Filed: May 10, 2006
    Publication date: April 23, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Mitsuhiro Takahi, Kazuhiro Moritani
  • Publication number: 20090096066
    Abstract: Disclosed is a design structure embodiment of a wafer that incorporates fill structures with varying configurations to provide uniform reflectance. Uniform reflectance is achieved by distributing across the wafer fill structures having different semiconductor materials such that approximately the same ratio and density between the different semiconductor materials is achieved within each region and, optimally, each sub-region. Alternatively, it is achieved by distributing across the wafer fill structures, including one or more hybrid fill structure containing varying proportions of different semiconductor materials, such that approximately the same ratio between the different semiconductor materials is achieved within each region and, optimally, each sub-region.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 16, 2009
    Inventors: Brent A. Anderson, Edward J. Nowak
  • Publication number: 20090085170
    Abstract: An interfacial roughness reducing film which is in contact, on one side thereof, with an insulating film and in contact, on a side opposite from the one side, with wiring comprises a Si—O bond, and is formed using a composition containing a silicon compound that comprises at least one bond of Si—N bonds and Si—Cl bonds wherein the number of Si—N bonds and Si—Cl bonds combined per molecule of the compound is at least two. An interfacial roughness between the interfacial roughness reducing film and the wiring is smaller than that between the interfacial roughness reducing film and the insulating film.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 2, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Tadahiro Imada, Yoshihiro Nakata, Kouta Yoshikawa
  • Publication number: 20090065908
    Abstract: Methods of fabricating a microelectromechanical structure are provided. An exemplary embodiment of a method of fabricating a microelectromechanical structure comprises providing a substrate. A first patterned sacrificial layer is formed on portions of the substrate, the first patterned sacrificial layer comprises a bulk portion and a protrusion portion. A second patterned sacrificial layer is formed over the first sacrificial layer, covering the protrusion portion and portions of the bulk portion of the first patterned sacrificial layer, wherein the second patterned sacrificial layer does not cover sidewalls of the first patterned sacrificial layer. An element layer is formed over the substrate, covering portions of the substrate, the first patterned sacrificial layer and second patterned sacrificial layer. The first and second patterned sacrificial layers are removed, leaving a microstructure on the substrate.
    Type: Application
    Filed: October 20, 2008
    Publication date: March 12, 2009
    Inventors: Chia-Hua Chang, Huaa-Shu Wu, Tsung-Mu Lai
  • Publication number: 20090051013
    Abstract: A semiconductor wafer for semiconductor components and to a method for its production is disclosed. In one embodiment, the semiconductor wafer includes a front side with an adjoining near-surface active zone as basic material for semiconductor component structures. The rear side of the semiconductor wafer is adjoined by a getter zone for gettering impurity atoms in the semiconductor wafer. The getter zone contains oxygen precipitates. In the near-surface active zone, atoms of doping material are located on lattice vacancies. The atoms of doping material have a higher diffusion coefficient that the oxygen atoms.
    Type: Application
    Filed: August 23, 2007
    Publication date: February 26, 2009
    Applicant: Infineon Technologies Austria AG
    Inventor: Hans-Joachim Schulze
  • Patent number: 7489020
    Abstract: An elevated containment structure in the shape of a wafer edge ring surrounding a surface of a semiconductor wafer is disclosed, as well as methods of forming and using such a structure. In one embodiment, a wafer edge ring is formed using a stereolithography (STL) process. In another embodiment, a wafer edge ring is formed with a spin coating apparatus provided with a wafer edge exposure (WEE) system. In further embodiments, a wafer edge ring is used to contain a liquid over a wafer active surface during a processing operation. In one embodiment, the wafer edge ring contains a liquid having a higher refractive index than air while exposing a photoresist on the wafer by immersion lithography. In another embodiment, the wafer edge ring contains a curable liquid material while forming a chip scale package (CSP) sealing layer on the wafer.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: February 10, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Peter A. Benson
  • Publication number: 20090008750
    Abstract: A semiconductor device having a seal ring structure with high stress resistance is provided. The semiconductor device is provided with a semiconductor layer including a plurality of semiconductor elements, an insulating film formed on the semiconductor layer, and a body that passes through the insulating film and surrounds the semiconductor elements as a whole. The body includes a plurality of walls that are spaced apart from each other in a circumferential direction and are arranged in parallel with one another, and a plurality of bridges, each of which intersects at least one of the plurality of walls.
    Type: Application
    Filed: June 20, 2008
    Publication date: January 8, 2009
    Inventor: Shunichi Tokitoh
  • Publication number: 20080290471
    Abstract: A method for making a thin-film structure includes a thin film stabilized on a substrate. The structure of the thin film is defined by a material which includes at least one first chemical species. The method includes a step of inputting particles of the first chemical species into the thin film so as to compensate for the flow of vacancies from the surface of the film.
    Type: Application
    Filed: October 25, 2006
    Publication date: November 27, 2008
    Inventors: Joel Eymery, Pascal Pochet
  • Publication number: 20080272467
    Abstract: A method for forming a fine pattern of a semiconductor device includes forming a deposition film over a substrate having an underlying layer. The deposition film includes first, second, and third mask films. The method also includes forming a photoresist pattern over the third mask film, patterning the third mask film to form a deposition pattern, and forming an amorphous carbon pattern at sidewalls of the deposition pattern. The method further includes filling a spin-on-carbon layer over the deposition pattern and the amorphous carbon pattern, polishing the spin-on-carbon layer, the amorphous carbon pattern, and the photoresist pattern to expose the third mask pattern, and performing an etching process to expose the first mask film with the amorphous carbon pattern as an etching mask. The etching process removes the third mask pattern and the exposed second mask pattern.
    Type: Application
    Filed: December 27, 2007
    Publication date: November 6, 2008
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Cheol Kyu Bok, Keun Do Ban
  • Publication number: 20080237810
    Abstract: Methods and apparatus to control surface properties via colloidal coatings are described. In one embodiment, colloidal coating may be used on a surface to enhance flow control. Other embodiments are also described.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Inventors: Gopalakrishnan Subramanian, Nirupama Chakrapani, Larry DeCesare, Shripad Gokhale, Jason Murphy, Jinlin Wang
  • Patent number: 7423330
    Abstract: A semiconductor device includes: a semiconductor substrate having a p-MOS region; an element isolation region formed in a surface portion of the semiconductor substrate and defining p-MOS active regions in the p-MOS region; a p-MOS gate electrode structure formed above the semiconductor substrate, traversing the p-MOS active region and defining a p-MOS channel region under the p-MOS gate electrode structure; a compressive stress film selectively formed above the p-MOS active region and covering the p-MOS gate electrode structure; and a stress released region selectively formed above the element isolation region in the p-MOS region and releasing stress in the compressive stress film, wherein a compressive stress along the gate length direction and a tensile stress along the gate width direction are exerted on the p-MOS channel region. The performance of the semiconductor device can be improved by controlling the stress separately for the active region and element isolation region.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: September 9, 2008
    Assignee: Fujitsu Limited
    Inventor: Shigeo Satoh
  • Publication number: 20080203540
    Abstract: Disclosed are embodiments of a wafer that incorporates fill structures with varying configurations to provide uniform reflectance. Uniform reflectance is achieved by distributing across the wafer fill structures having different semiconductor materials such that approximately the same ratio and density between the different semiconductor materials is achieved within each region and, optimally, each sub-region. Alternatively, it is achieved by distributing across the wafer fill structures, including one or more hybrid fill structure containing varying proportions of different semiconductor materials, such that approximately the same ratio between the different semiconductor materials is achieved within each region and, optimally, each sub-region.
    Type: Application
    Filed: February 26, 2007
    Publication date: August 28, 2008
    Inventors: Brent A. Anderson, Edward J. Nowak
  • Publication number: 20080179712
    Abstract: A semiconducting material that has all the advantages of prior art SOI substrates including, for example, low parasitic capacitance and leakage, without having floating body effects is provided. More specifically, the present invention provides a Semiconductor-on-Pores (SOP) material that includes a top semiconductor layer and a bottom semiconductor layer, wherein the semiconductor layers are separated in at least one region by a porous semiconductor material. Semiconductor structures including the SOP material as a substrate as well as a method of fabricating the SOP material are also provided. The method includes forming a p-type region with a first semiconductor layer, converting the p-type region to a porous semiconductor material, sealing the upper surface of the porous semiconductor material by annealing, and forming a second semiconductor layer atop the porous semiconductor material.
    Type: Application
    Filed: April 3, 2008
    Publication date: July 31, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Joel P. de Souza, Keith E. Fogel, Brian J. Greene, Devendra K. Sadana, Haining S. Yang
  • Patent number: 7400031
    Abstract: A CMOS device comprising a FinFET comprises at least one fin structure comprising a source region; a drain region; and a channel region comprising silicon separating the source region from the drain region. The FinFET further comprises a gate region comprising a N+ polysilicon layer on one side of the channel region and a P+ polysilicon layer on an opposite side of the channel region, thereby, partitioning the fin structure into a first side and a second side, respectively. The channel region is in mechanical tension on the first side and in mechanical compression on the second side. The FinFET may comprise any of a nFET and a pFET, wherein the nFET comprises a N-channel inversion region in the first side, and wherein the pFET comprises a P-channel inversion region in the second side. The CMOS device may further comprise a tensile film and a relaxed film on opposite sides of the fin structure adjacent to the source and drain regions, and an oxide cap layer over the fin structure.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: July 15, 2008
    Assignee: International Business Machines Corporation
    Inventors: Brent A. Anderson, Edward J. Nowak
  • Patent number: 7397126
    Abstract: The present invention provides inhibiting an electrical leakage caused by anion migration. A trenched portion 15 is provided as ion migration-preventing zone between a source electrode 4 and a gate electrode 5. The trenched portion 15 is formed so as to surround a periphery of the source electrode 4.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: July 8, 2008
    Assignee: NEC Electronics Corporation
    Inventor: Tomoki Kato
  • Publication number: 20080128868
    Abstract: The invention relates to a method for producing a semi-conductor structure consisting in a) producing at least one part of a circuit in or on a surface layer (2) of a substrate, which comprises said surface layer (2), a layer (4) buried under said surface layer and an underlying layer (6) used in the form of a first support, b) transferring said substrate to a handle substrate (20) and in removing the first support (6), c) forming a bonding layer (12) on said electrically conductive or a grounding plane forming layer (14) and e) transferring the assembly to a second support (30) and in removing the handle substrate (20).
    Type: Application
    Filed: December 22, 2005
    Publication date: June 5, 2008
    Applicant: TRACIT TECHNOLOGIES
    Inventor: Bernard Aspar
  • Publication number: 20080128867
    Abstract: A method of forming a micro-pattern in a semiconductor device that is less than approximately 130 nm using the KrF exposure equipment. A method of forming a micro-pattern in a semiconductor device includes at least one of the following steps: Forming an etching layer, a hard mask layer, an organic bottom anti-reflection (BARC) layer, and/or a photoresist film on and/or over a semiconductor substrate. Forming a photoresist pattern by exposing and developing the photoresist film. Forming a BARC layer pattern using the photoresist pattern as a mask. Forming a hard mask layer pattern using the BARC layer pattern as an etch mask. Forming an etching layer pattern by using the hard mask layer pattern as an etch mask.
    Type: Application
    Filed: July 24, 2007
    Publication date: June 5, 2008
    Inventor: Sang-Uk Lee
  • Publication number: 20080122042
    Abstract: A wafer comprising polycrystalline silicon is used in various applications, including as a handling wafer, a test wafer, a dummy wafer, or as a substrate in a bonded die. Use of polycrystalline material instead of single-crystal may lower expenses.
    Type: Application
    Filed: November 27, 2006
    Publication date: May 29, 2008
    Inventors: Michael Goldstein, Irwin Yablok
  • Publication number: 20080122043
    Abstract: Semiconductor wafers with a diameter of at least 200 mm comprise a silicon carrier wafer, an electrically insulating layer and a semiconductor layer located thereon, the semiconductor wafer having been produced by means of a layer transfer process comprising at least one RTA step, wherein the semiconductor wafer has a warp of less than 30 ?m, a DeltaWarp of less than 30 ?m, a bow of less than 10 ?m and a DeltaBow of less than 10 ?m. Processes for the production of a semiconductor wafer of this type require specific heat treatment regimens.
    Type: Application
    Filed: January 31, 2008
    Publication date: May 29, 2008
    Applicant: SILTRONIC AG
    Inventors: Markus Blietz, Robert Hoelzl, Reinhold Wahlich, Andreas Huber