Patents Represented by Law Firm Thomason and Moser
  • Patent number: 6215897
    Abstract: A substrate handling apparatus includes a transfer arm having a substrate support. The apparatus includes at least one image acquisition sensor configured to acquire images of a substrate supported by the substrate support. In addition, the apparatus includes a controller coupled to the image acquisition sensor and configured to control the image acquisition sensor to acquire at least one image of the substrate supported on the substrate support. The controller is further configured to receive the images acquired by the image acquisition sensor and to determine an initial position of the substrate based on the acquired images. The controller is further coupled to the substrate support to control movement thereof to move the substrate to a new position based on the substrate's initial position. The apparatus also can be used to determine a substrate identification and to detect certain substrate defects either before or after processing the substrate in a thermal processing chamber.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: April 10, 2001
    Assignee: Applied Komatsu Technology, Inc.
    Inventors: Emanuel Beer, John M. White
  • Patent number: 6214413
    Abstract: A method and apparatus for fabricating a wafer spacing mask on a substrate support chuck. Such apparatus is a stencil containing a plurality of apertures and at least one high aspect ratio opening that is positioned atop the substrate support chuck while material is deposited onto the stencil and through the apertures and high aspect ratio openings onto the chuck. Upon completion of the deposition process, the stencil is removed from the workpiece support chuck leaving deposits of the material of various widths but the same heights to form the wafer spacing mask.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: April 10, 2001
    Assignee: Applied Materials, Inc.
    Inventor: Karl Brown
  • Patent number: 6210485
    Abstract: The invention relates to an apparatus and process for the vaporization of liquid precursors and deposition of a film on a suitable substrate. Particularly contemplated is an apparatus and process for the vaporization of a metal-oxide film, such as a barium, strontium, titanium oxide (BST) film, for deposition on a silicon wafer to make integrated circuit capacitors useful in high capacity dynamic memory modules. The vaporizer comprises thermally controlled components which are adapted for easy assembly and disassembly. A main vaporizing section provides a large heated surface for flash vaporization. A high conductance blocker is disposed at a lower end of the vaporizer to provide an extended vaporization surface. Optionally, a filter may be employed to capture unvaporized precursor droplets.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: April 3, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Jun Zhao, Lee Luo, Xiaoliang Jin, Frank Chang, Charles Dornfest, Po Tang
  • Patent number: 6210483
    Abstract: The invention provides an apparatus for excluding unwanted deposition at the edge of a substrate which prevents excess purge gas from flowing over the surface of the substrate at the region adjacent a notch on a substrate. Another aspect of the invention provides a wider purge gas channel that prevents excess purge gas from flowing over the surface of the substrate. Still another aspect of the present invention provides a purge gas guide that includes a notch therein to prevent excess purge gas from adversely affecting deposition at the vicinity of the substrate notch.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: April 3, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Ken Tsai, Steve Ghanayem, Joseph Yudovsky, Ken Lai
  • Patent number: 6209632
    Abstract: A subsurface signal transmitting apparatus including an insulation coupler, a carrier device for mounting the telemetry instrumentation, and a by-pass system for avoiding pressure build-up either above or below the apparatus. The insulation coupler includes a housing member having a central opening defined by an interior surface extending in the longitudinal direction and a mandrel member having an exterior surface spaced from the interior surface of the housing member to provide a gap or clearance with an insulating bonding material occupying the clearance. The surfaces are oriented so that when the coupling is in tension at least a portion of the two surfaces experience interacting forces towards each other in the longitudinal direction of the coupling and in event of failure of the bonding material, the mandrel member is unable to withdraw from the housing member.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: April 3, 2001
    Inventors: Marvin L. Holbert, James W. Haslett, Robert E. Smallwood, Frederick N. Trofimenkoff
  • Patent number: 6211065
    Abstract: The present invention provides a method of depositing an amorphous fluorocarbon film using a high bias power applied to the substrate on which the material is deposited. The invention contemplates flowing a carbon precursor at rate and at a power level so that equal same molar ratios of a carbon source is available to bind the fragmented fluorine in the film thereby improving film quality while also enabling improved gap fill performance. The invention further provides for improved adhesion of the amorphous fluorocarbon film to metal surfaces by first depositing a metal or TiN adhesion layer on the metal surfaces and then stuffing the surface of the deposited adhesion layer with nitrogen. Adhesion is further improved by coating the chamber walls with silicon nitride or silicon oxynitride.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: April 3, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Ming Xi, Eugene Tzou, Lie-Yea Cheng, Turgut Sahin, Yaxin Wang
  • Patent number: 6207558
    Abstract: The present invention provides an effective barrier layer for improved via fill in high aspect ratio sub-micron apertures at low temperature, particularly at the contact level on a substrate. In one aspect of the invention, a feature is filled by first depositing a barrier layer onto a substrate having high aspect ratio contacts or vias formed thereon. The barrier layer is preferably comprised of Ta, TaNx, W, WNx, or combinations thereof. A CVD conformal metal layer is then deposited over the barrier layer at low temperatures to provide a conformal wetting layer for a PVD metal. Next, a PVD metal layer is deposited onto the previously formed CVD conformal metal layer at a temperature below that of the melting point temperature of the metal to allow flow of the CVD conformal layer and the PVD metal layer into the vias.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: March 27, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Shri Singhvi, Suraj Rengarajan, Peijun Ding, Gongda Yao
  • Patent number: 6209024
    Abstract: A method of accessing an array of storage devices comprising the steps of analyzing a data request from a user to determine the optimal storage device from which data should be retrieved, assigning the user to a first group of users that will access the optimal storage device in a first time period, retrieving data to fulfill the data request from the optimal storage device, and buffering the data in a buffer. Thereafter, the method assigns the user to a second group of users that will be supplied data from the buffer in a second time period, and then retrieving the data from the buffer and transmitting the data to the user to fulfill the data request.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: March 27, 2001
    Assignee: DIVA Systems Corporation
    Inventors: James B. Armstrong, Robert G. Dandrea
  • Patent number: 6206971
    Abstract: A temperature-controlled exhaust assembly with cold trap capability. One embodiment of the exhaust assembly comprises a multi-heater design which allows for independent multi-zone closed-loop temperature control. Another embodiment comprises a compact multi-valve uni-body design incorporating a single heater for simplified closed-loop temperature control. The cold trap incorporates a heater for temperature control at the inlet of the trap to minimize undesirable deposits. One embodiment also comprises a multi-stage cold trap and a particle trap. As a removable unit, this cold trap provides additional safety in the handling and disposal of the adsorbed condensables.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: March 27, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Salvador P. Umotoy, Lawrence Chung-Lai Lei, Russell C. Ellwanger, Ronald L. Rose, Joel Huston, James Jin-Long Chen
  • Patent number: 6208594
    Abstract: A more linear duty cycle modulator is made by converting the sine wave bias into a triangle wave bias utilizing a sample and hold circuit as the base band signal is added; on readout, low pass filtering of the high frequency content of the duty cycle modulated waveform, the base band signal is recovered at full amplitude as if saturation recording was being utilized. In a further preferred approach, quadature amplitude modulation and demodulation is utilized.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: March 27, 2001
    Assignee: Seagate Technology LLC
    Inventors: William D. Huber, Robert F. Smith, Terry A. Aultman, John C. Kuklewicz
  • Patent number: 6206176
    Abstract: A magnetic drive system for moving a substrate transfer shuttle along a linear path between chambers in a semiconductor fabrication apparatus. A rack with rack magnets is secured to the shuttle, and a rotatable pinion with pinion magnets is positioned adjacent the rack so that the pinion magnets can magnetically engage the rack magnets. Thus, rotation of the pinion will cause the shuttle to move along the linear path. The magnets may be oriented with a helix angle between their primary axis and the axis of rotation of the pinion. One rack and one pinion are located on each side of the shuttle. A set of lower guide rollers supports the shuttle, and a set of upper guide rollers prevents the shuttle from lifting off the lower guide rollers.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: March 27, 2001
    Assignee: Applied Komatsu Technology, Inc.
    Inventors: Wendell T. Blonigan, John M. White
  • Patent number: 6207026
    Abstract: The present invention generally provides a vacuum processing system with a process chamber and a rotating member, such as a magnetron in a PVD chamber, disposed in a cooling cavity of the process chamber, where the rotating member includes a deflection member for deflecting cooling fluid in the cooling cavity toward interior portions of the rotating member. In one embodiment, a base plate of the rotating member defines an upper surface of the rotating member and a magnet retainer defines a lower surface of the rotating member. Magnets are mounted between the base plate and the magnet retainer. The deflection member is mounted between the magnets and can be coupled to the magnets on one or both ends. One end of the deflection member is disposed toward the outer perimeter of the magnetron and the other end of the deflection member is disposed toward the interior portions of the rotating member.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: March 27, 2001
    Assignee: Applied Materials, Inc.
    Inventor: Steven Charles Crocker
  • Patent number: 6207027
    Abstract: The present invention provides a method of reducing the overhead time associated with a high density ion metal plasma process. The method provides flowing a gas at a first flow rate and exhausting the chamber at a constant rate so that the rate at which gases are exhausted from the chamber at a steady state equals the flow rate of gases into the chamber. Another method provides flowing a gas at a first rate and then at a second flow rate which is about equal to the rate at which the gas is exhausted from the chamber at a steady state.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: March 27, 2001
    Assignee: Applied Materials, Inc.
    Inventor: Kenny King-tai Ngan
  • Patent number: 6208335
    Abstract: A method and apparatus for providing an interactive menu structure within an interactive information distribution system. The menu structure is embodied in a combination of software, which provides a so-called navigator and a set top terminal that provides certain functionality for the navigator and a video session manager which provides support functionality for the set top terminal. The menu structure has each menu (e.g., menu instructions, graphics and video) contained in downloadable applets which are sent upon request from the service provider equipment to the set top terminal for display. As such, the navigator functions are actually distributed between the service provider equipment and the subscriber's equipment. Such distribution provides an enjoyable, real-time interactive session that allows the user to rapidly navigate through a plethora of menus to find particular information which they desire to view.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: March 27, 2001
    Assignee: Diva Systems Corporation
    Inventors: Donald Gordon, Christopher Goode, Philip A. Thomas, Mark D. Conover, Brooks Cole
  • Patent number: 6207222
    Abstract: The present invention generally provides a metallization process for forming a highly integrated interconnect. More particularly, the present invention provides a dual damascene interconnect module that incorporates a barrier layer deposited on all exposed surface of a dielectric layer which contains a dual damascene via and wire definition. A conductive metal is deposited on the barrier layer using two or more deposition methods to fill the via and wire definition prior to planarization. The invention provides the advantages of having copper wires with lower resistivity (greater conductivity) and greater electromigration resistance than aluminum, a barrier layer between the copper wire and the surrounding dielectric material, void-free, sub-half micron selective CVD Al via plugs, and a reduced number of process steps to achieve such integration.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: March 27, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Liang-Yuh Chen, Rong Tao, Ted Guo, Roderick Craig Mosely
  • Patent number: 6202677
    Abstract: A cleaning and filtering apparatus and method for a tank such as an aquarium. The major components are an inlet water controller, a suction unit, and a filter container unit. The filter container is selectively connected to the suction unit and a waste outlet to clean the tank and discharge waste water from the tank. The inlet water controller comprises a float connected to a valve to automatically replace the discharged water when the water level in the tank drops.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 20, 2001
    Inventors: Chi Chung Chen, Yang Ning Di
  • Patent number: 6204168
    Abstract: A damascene structure, and a method of fabricating same, containing relatively low dielectric constant materials (e.g., k less than 3.8). A silicon-based, photosensitive material, such as plasma polymerized methylsilane (PPMS), is used to form both single and dual damascene structures containing low k materials. During the manufacturing process that forms the damascene structures, the silicon-based photosensitive material is used as both a hard mask and/or an etch stop.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: March 20, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Mehul B. Naik, Tim Weidman, Dian Sugiarto, Allen Zhao
  • Patent number: 6202656
    Abstract: A fluid delivery system for delivering a process fluid to a vacuum processing system includes a secondary containment line surrounding a process fluid line. A purge gas flows through the secondary containment line and around the process fluid line in order to flow away any leaked process fluid. Alternatively, a heated fluid flows through the secondary containment line forming a heat trace around the process fluid line to heat the process fluid line and the process fluid by means of convection, which provides for precise uniformity of temperature throughout the length of the secondary containment line. The heated fluid loses heat to the ambient environment creating a temperature gradient through which the process fluid flows. The secondary containment line may have a heating element along its length for adding heat to the heated fluid to change the temperature gradient.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: March 20, 2001
    Assignee: Applied Materials, Inc.
    Inventor: John V. Schmitt
  • Patent number: 6201999
    Abstract: A method and apparatus for producing schedules for a wafer in a multichamber semiconductor wafer processing tool comprising the steps of providing a trace defining a series of chambers that are visited by a wafer as the wafer is processed by the tool; initializing a sequence generator with a value of a variable defining initial wafer positioning within the tool; generating all successor variables for the initial variable value to produce a series of values of the variable that represent a partial schedule; backtracking through the series of variables to produce further partial schedules; and stopping the backtracking when all possible variable combinations are produced that represent all possible valid schedules for the trace. All the possible schedules are analyzed to determine a schedule that produces the highest throughput of all the schedules.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: March 13, 2001
    Assignee: Applied Materials, Inc.
    Inventor: Dusan Jevtic
  • Patent number: H1955
    Abstract: Films, made of polyethylenes and fillers, and articles made therefrom greater WVTR than previously available films based on conventional Ziegler-Natta based polyethylenes. The polyethylenes are produced in a metallocene-catalyzed production process. The films may be made by a cast film process, and may be made in widely varying filler content, generally polyethylene to filler ratios of 30/70 to 70/30. The metallocene based polyethylenes when combined with filler also permit the extrusion of thinner films leading to lighter weight and softer films. The m-polyethylenes utilized for making such films typically have a Composition Distribution Breadth Index above 50%, a Mw/Mn below 3, and a Mz/Mw below 2.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: April 3, 2001
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jeffrey Alan Middlesworth, Kevin Arthur Brady