Patents Examined by Sylvia R. MacArthur
  • Patent number: 8696863
    Abstract: A liquid processing apparatus supplies a processing liquid from a nozzle formed on an irrotational member to a substrate while the substrate is rotated horizontally, with a back surface of the substrate facing downward. The liquid processing apparatus prevents droplets from remaining on the member. The liquid processing apparatus includes a nozzle member irrotationally provided below the substrate. The nozzle member includes a processing-liquid discharge nozzle to discharge the processing liquid and a gas discharge nozzle to discharge drying gas on a top surface of the nozzle member. The processing-liquid discharge nozzle includes a processing-liquid discharge port to discharge the processing liquid toward the substrate. The gas discharge nozzle includes a first gas discharge port to discharge the drying gas toward the substrate, and a plurality of second gas discharge ports to discharge the drying gas in a radial direction along the top surface of the nozzle member.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: April 15, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Jiro Higashijima, Hiromitsu Namba
  • Patent number: 8696924
    Abstract: A polishing apparatus is used for polishing and planarizing a substrate such as a semiconductor wafer on which a conductive film such as a copper (Cu) layer or a tungsten (W) layer is formed. The polishing apparatus includes a polishing table having a polishing surface, a motor for rotating the polishing table, a top ring for holding a substrate and pressing the substrate against the polishing surface, a film thickness measuring sensor disposed in the polishing table for scanning a surface of the substrate, and a computing device for processing signals of the film thickness measuring sensor to compute a film thickness of the substrate.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: April 15, 2014
    Assignees: Ebara Corporation, Kabushiki Kaisha Toshiba
    Inventors: Mitsuo Tada, Taro Takahashi, Motohiro Niijima, Shinro Ohta, Atsushi Shigeta
  • Patent number: 8689734
    Abstract: A plasma reactor (1) for treating a substrate (40), comprises at least two electrodes (20, 30) arranged within the reactor (1) defining an internal process space (13) there between, whereas the two electrodes (20, 30) are located opposed to each other and parallel with respect to a first surface (20a) of the electrodes (20, 30). Further it comprises a gas inlet (11) and a gas outlet (12) for transporting gas in and out of the plasma reactor (1), a radiofrequency generator (21) connected to at least one of the electrodes (20, 30).
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: April 8, 2014
    Assignee: Tel Solar AG
    Inventors: Christoph Ellert, Werner Wieland, Daniele Zorzi, Abed al hay Taha
  • Patent number: 8679286
    Abstract: A catalyst-aided chemical processing method is a novel processing method having a high processing efficiency and suited for processing in a space wavelength range of not less than several tens of ?m. The catalyst-aided chemical processing method comprises: immersing a workpiece in a processing solution in which a halogen-containing molecule is dissolved, said workpiece normally being insoluble in said processing solution; and bringing a platinum, gold or ceramic solid catalyst close to or into contact with a processing surface of the workpiece, thereby processing the workpiece through dissolution in the processing solution of a halogenide produced by chemical reaction between a halogen radical generated at the surface of the catalyst and a surface atom of the workpiece.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: March 25, 2014
    Assignee: Ebara Corporation
    Inventors: Kazuto Yamauchi, Yasuhisa Sano
  • Patent number: 8673081
    Abstract: An epitaxial reactor enabling simultaneous deposition of thin films on a multiplicity of wafers is disclosed. During deposition, a number of wafers are contained within a wafer sleeve comprising a number of wafer carrier plates spaced closely apart to minimize the process volume. Process gases flow preferentially into the interior volume of the wafer sleeve, which is heated by one or more lamp modules. Purge gases flow outside the wafer sleeve within a reactor chamber to minimize deposition on the walls of the chamber. In addition, sequencing of the illumination of the individual lamps in the lamp module may further improve the linearity of variation in deposition rates within the wafer sleeve. To improve uniformity, the direction of process gas flow may be varied in a cross-flow configuration. Combining lamp sequencing with cross-flow processing in a multiple reactor system enables high throughput deposition with good film uniformities and efficient use of process gases.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: March 18, 2014
    Assignee: Crystal Solar, Inc.
    Inventors: Visweswaren Sivaramakrishnan, Kedarnath Sangam, Tirunelveli S. Ravi, Andrzej Kaszuba, Quoc Vinh Truong
  • Patent number: 8671965
    Abstract: An apparatus to supply a plurality of process fluids for processing a substrate in a semiconductor processing chamber. The apparatus includes a plurality of process fluid supply valves and a fluid supply network that is defined between a crossover valve and a tuning supply valve. The apparatus further includes a tuning fluid supply being connected to the fluid supply network through the tuning supply valve. Further included with the apparatus is a plurality of process fluids that are connected to the fluid supply network through the plurality of process fluid supply valves. A process chamber that has a substrate support is also included in the apparatus. The process chamber further including an edge fluid supply and a center fluid supply, the edge fluid supply connected to the fluid supply network through an edge enable valve and the center supply connected to the fluid supply network through a center enable valve.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: March 18, 2014
    Assignee: Lam Research Corporation
    Inventors: Miguel A. Saldana, Greg Sexton
  • Patent number: 8673110
    Abstract: A solution supplying unit includes a body, a first supplying tube and a second supplying tube. The body includes a chamber having a substantially circular cross-section to receive a solution and an out-flowing part connected to the chamber to flow out the solution. The first supplying tube is disposed at a side of the body, tangentially connected to the chamber, and supplying a first solution into the chamber to rotate the first solution in the chamber. The second supplying tube has an end portion, and supplying a second solution into the chamber to mix the first solution with the second solution. The end portion is formed through the body and is adjacent to a central axis of the body.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: March 18, 2014
    Assignee: Semes Co., Ltd.
    Inventors: Gui-Su Park, Hwan-lk Noh, Byung-Chul Kang, Won-Pil Cho
  • Patent number: 8652344
    Abstract: A plurality of process liquid supply nozzles 10 are arranged at different levels on right and left sides of a semiconductor wafer W in a process bath 1. A discharge port of each of the nozzles 10 is directed toward the semiconductor wafer W. In accordance with a predetermined procedure, a process liquid is discharged from one or more nozzles 10 selected from the plurality of nozzles 10. In order to perform a chemical liquid treatment, a chemical liquid is discharged from the lowermost nozzle 10, for example, and thereafter, the nozzles 10 on the upper levels sequentially discharge the chemical liquid. In order to perform a rinse liquid treatment by replacing the chemical liquid in the process bath 1 with a rinse liquid, the rinse liquid is discharged from the lowermost nozzle 10 at first, for example. Thereafter, the rinse liquid is discharged from all the nozzles 10. In this manner, efficiency and uniformity in the liquid treatment can be improved.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: February 18, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Kotaro Tsurusaki, Hiroshi Tanaka, Takayuki Toshima, Kazuyoshi Eshima
  • Patent number: 8646409
    Abstract: Vacuum treatment installation particularly for plasma coating workpieces has an arrangement for boosting and/or igniting a glow discharge plasma for the treatment of workpieces, and at least one hollow body of electrically conductive material, the hollow body including a hollow space and at least one entrance opening through which charge carriers flow in order to make possible ignition and operation of a plasma or to boost an existing plasma.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: February 11, 2014
    Assignee: Oerlikon Trading AG, Truebbach
    Inventors: Orlaw Massler, Hubert Eberle, Patrick Gschwend
  • Patent number: 8617352
    Abstract: An apparatus and a method comprising same for removing metal oxides from a substrate surface are disclosed herein. In one particular embodiment, the apparatus comprises an electrode assembly that has a housing that is at least partially comprised of an insulating material and having an internal volume and at least one fluid inlet that is in fluid communication with the internal volume; a conductive base connected to the housing comprising a plurality of conductive tips that extend therefrom into a target area and a plurality of perforations that extend therethrough and are in fluid communication with the internal volume to allow for a passage of a gas mixture comprising a reducing gas.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: December 31, 2013
    Assignees: Air Products and Chemicals, Inc., BTU International, Inc.
    Inventors: Chun Christine Dong, Wayne Thomas McDermott, Alexander Schwarz, Gregory Khosrov Arslanian, Richard E. Patrick, Gary A. Orbeck, Donald A. Seccombe, Jr.
  • Patent number: 8597461
    Abstract: Methods and apparatus for isotropically etching a metal from a work piece, while recovering and reconstituting the chemical etchant are described. Various embodiments include apparatus and methods for etching where the recovered and reconstituted etchant is reused in a continuous loop recirculation scheme. Steady state conditions can be achieved where these processes are repeated over and over with occasional bleed and feed to replenish reagents and/or adjust parameters such as pH, ionic strength, salinity and the like.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: December 3, 2013
    Assignee: Novellus Systems, Inc.
    Inventors: Steven T. Mayer, David W. Porter
  • Patent number: 8591700
    Abstract: The present disclosure is directed to a susceptor support that includes a hub and a plurality of arms extending radially from the hub, where each arm has a terminal end positioned away from the hub. The susceptor support also includes a plurality of elongated rectangular tips formed at the terminal end of each arm, each tip having a length and a width, wherein the length is greater than the width.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: November 26, 2013
    Assignee: STMicroelectronics Pte Ltd.
    Inventors: Roy G. Gatchalian, Joseph Gregorio Soriano, Hee Cher Heng
  • Patent number: 8591698
    Abstract: A polishing system receives one or more target parameters for a selected peak in a spectrum of light, polishes a substrate, measures a current spectrum of light reflected from the substrate while the substrate is being polished, identifies the selected peak in the current spectrum, measures one or more current parameters of the selected peak in the current spectrum, compares the current parameters of the selected peak to the target parameters, and ceases to polish the substrate when the current parameters and the target parameters have a pre defined relationship.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: November 26, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Dominic J. Benvegnu, Boguslaw A. Swedek, David J. Lischka
  • Patent number: 8580079
    Abstract: In accordance with one embodiment of the present disclosure, an electrode carrier assembly is provided including an electrode carrying annulus and a plurality of electrode mounting members. The electrode carrying annulus includes an electrode containment sidewall that forms an inner or outer radius of the electrode carrying annulus. The electrode carrying annulus further includes a plurality of radial sidewall projections that project radially away from the electrode containment sidewall. The radial sidewall projections each include an upward-facing tapered spacer including an upward-facing micro-mesa. The electrode mounting members each include a downward-facing tapered spacer including a downward-facing micro-mesa. The electrode mounting members are rotatably engaged with the electrode carrying annulus, and are configured to rotate between a free position and a bracketed position.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: November 12, 2013
    Assignee: Lam Research Corporation
    Inventors: Cliff La Croix, Armen Avoyan, Duane Outka, Catherine Zhou, Hong Shih
  • Patent number: 8580077
    Abstract: A plasma processing apparatus for generating a plasma of a processing gas by applying a high frequency power to an electrode provided in a processing chamber and processing a substrate using the plasma is provided. The plasma processing apparatus includes an optical data detection unit, a data storage unit and a control unit. The optical data detection unit detects optical data when plasma processing the substrate. The data storage unit stores correlation data representing a correlation between type data corresponding to a plurality of types classified based on a type of a mask or a film to be processed disposed on the substrate and optical data to be detected by the optical data detection unit, and end point detection setting data sets, each of the setting data sets serving to detect a plasma processing end point and corresponding to one of the types.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: November 12, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Kosuke Ogasawara, Susumu Saito, Syuji Nozawa
  • Patent number: 8573153
    Abstract: An improved upper electrode system has a multi-part electrode in which a central portion of the electrode having high wear is replaceable independent of an outer peripheral portion of the electrode. The upper electrode can be used in plasma processing systems for processing semiconductor substrates, such as by etching or CVD. The multi-part upper electrode system is particularly useful for large size wafer processing chambers, such as 300 mm wafer processing chambers for which monolithic electrodes are unavailable or costly.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: November 5, 2013
    Assignee: Lam Research Corporation
    Inventors: Andreas Fischer, William S. Kennedy, Peter Loewenhardt, David Trussell
  • Patent number: 8574446
    Abstract: At the time of plasma igniting or during plasma processing, only optimizing the distance between electrodes in each case caused a limitation to the prevention of charging damage. To resolve this, a novel plasma processing method employs a plasma processing apparatus which includes an upper electrode to which first high-frequency power is applied, a lower electrode to which second high-frequency power is applied, and a lift mechanism for controlling the spacing between the upper and lower electrodes. The first high-frequency power is applied to the upper electrode to cause plasma igniting. The method is adapted to make the spacing between the upper and lower electrodes larger at least at the time of plasma extinction than during plasma processing of a wafer on the lower electrode.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: November 5, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Tamotsu Morimoto, Takahiro Murakami
  • Patent number: 8557132
    Abstract: A system of cleaning a CMP pad used for removing copper from a substrate, the system comprising an abrasive cleaning pad, a cleaning solution delivery system that delivers a cleaning solution, an analyzing system that monitors the characteristics of the cleaning solution optically and chemically, and a carriage that allows the analyzing system to monitor the cleaning solution at a plurality of locations on the CMP pad. The use of the abrasive cleaning pad and the cleaning solution removes contaminants from the CMP pad, and the contaminants are dissolved in the cleaning solution. By measuring the concentration of contaminants in the cleaning solution, the condition of the CMP pad can be monitored. To measure the concentration of the contaminants, changes in the refractive index and absorption of light in the cleaning solution are measured, wherein the refractive index and absorption depend on the concentration of the contaminants.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: October 15, 2013
    Assignee: Micron Technology, Inc.
    Inventors: Dinesh Chopra, Scott Meikle
  • Patent number: 8557328
    Abstract: A coating apparatus includes non-orthogonal coater geometry to improve coatings on a glass ribbon, and to improve yields of such coatings. The apparatus includes a first arrangement to move the ribbon along a first imaginary straight line through a coating zone provided in a glass forming chamber. The coater has a coating nozzle and an exhaust slot, each have a longitudinal axis. The coating nozzle directs coating vapors toward the coating zone, and the exhaust slot removes vapors from the coating zone. A second arrangement mounts the coater in spaced relation to the path with the coating nozzle and the exhaust slot facing the coating zone. A second imaginary straight line is normal to the longitudinal axis of the coating nozzle, and the first imaginary line and the second imaginary line subtend an angle in the range of greater than zero degrees to 90 degrees.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: October 15, 2013
    Assignee: PPG Industries Ohio, Inc.
    Inventors: James W. McCamy, John F. Sopko
  • Patent number: 8555808
    Abstract: Disclosed is a substrate processing apparatus, including: a processing chamber to accommodate a plurality of substrates therein in such a way that the substrate are vertically stacked; a gas supply system to supply processing gas into the processing chamber; an exhaust system to exhaust an atmosphere from the processing chamber; at least a pair of electrodes made of flexible member extending in a stacking direction of the substrates to activate the processing gas; and protecting tubes to accommodate the electrodes therein, wherein each of the protecting tubes is provided with a bent portion at a higher position than an uppermost substrate, and a tip end of each of the electrodes is located on a tip end side of each of the protecting tubes over the bent portion.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: October 15, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tetsuo Yamamoto, Tadashi Kontani