Patents by Inventor Alan Walter

Alan Walter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070094885
    Abstract: An apparatus and method for drying substrates in single-wafer processing chambers by providing capillary material at those areas where the substrate contacts a rotatable support. The capillary material will draw in, by capillary force, any liquid that is trapped between the substrate and the support at the areas of contact, thus reducing the edge exclusion area of the substrate and increasing yield. The inventive apparatus, in one aspect, comprises: a rotatable support comprising a fixture for supporting a substrate in a substantially horizontal orientation by contacting only a perimeter region of a substrate; the fixture comprising one or more contact surfaces that contact and support the perimeter region of the substrate; and wherein the one or more contact surfaces comprise a capillary material.
    Type: Application
    Filed: November 3, 2005
    Publication date: May 3, 2007
    Inventor: Alan Walter
  • Publication number: 20060260639
    Abstract: A system and method for processing and/or cleaning substrates using sonic energy that eliminates or reduces damage to the substrates. In one aspect, the invention utilizes and produces low power density sonic energy to effectively remove particles from a substrate. In another aspect, the invention utilizes and generates a clean electrical signal for driving a source of sonic energy, such as a transducer.
    Type: Application
    Filed: March 8, 2006
    Publication date: November 23, 2006
    Inventors: Pejman Fani, Ismail Kashkoush, John Korbler, Vivek Vohra, Alan Walter
  • Publication number: 20060260638
    Abstract: A system and method for processing and/or cleaning substrates using sonic energy that eliminates or reduces damage to the substrates. In one aspect, the invention utilizes and produces low power density sonic energy to effectively remove particles from a substrate. In another aspect, the invention utilizes and generates a clean electrical signal for driving a source of sonic energy, such as a transducer.
    Type: Application
    Filed: March 8, 2006
    Publication date: November 23, 2006
    Inventors: Pejman Fani, Ismail Kashkoush, John Korbler, Vivek Vohra, Alan Walter
  • Publication number: 20060021634
    Abstract: A method and system for creating an ozonated process solution, such as ozonated deionized water, having high ozone concentration. The system comprises, a static mixer coupled to a recirculation loop of an auxiliary tank. The system and method are designed so that during the initial feed of process liquid and ozone gas to the system, the process liquid and ozone gas pass through the static mixer prior to ever reaching the auxiliary. The static mixer mixes the ozone gas into the process liquid to form the ozonated process solution. Thus, the auxiliary tank is initially filled with an ozonated process solution. The ozonated process solution can be recirculated from the auxiliary tank and back through the static mixer while additional ozone gas is dissolved therein. This recirculation can be performed until a desired concentration of ozone is detected in the ozonated process solution.
    Type: Application
    Filed: July 8, 2005
    Publication date: February 2, 2006
    Inventors: Zhi (Lewis) Liu, Richard Novak, Alan Walter, Nick Yialamas
  • Publication number: 20060011214
    Abstract: A system and method for cleaning semiconductor wafers wherein the use of SCI and SC2 is eliminated and replaced by the use DIO3 and dilute chemistries.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 19, 2006
    Inventors: Zhi Liu, Ismail Kashkoush, Alan Walter, Richard Novak
  • Patent number: 6491763
    Abstract: A process for treating an electronic component wherein the electronic component is exposed to a heated solvent and subsequently exposed to an ozonated process fluid. The electronic component is optionally exposed to the heated solvent by exposing the electronic component to a passing layer of heated solvent. An apparatus for treating electronic components with a heated solvent and an ozonated process fluid is also provided.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 10, 2002
    Assignee: Mattson Technology IP
    Inventors: Steven Verhaverbeke, Lewis Liu, Alan Walter, C. Wade Sheen, Christopher McConnell
  • Publication number: 20020033186
    Abstract: A process for treating an electronic component wherein the electronic component is exposed to a heated solvent and subsequently exposed to an ozonated process fluid. The electronic component is optionally exposed to the heated solvent by exposing the electronic component to a passing layer of heated solvent. An apparatus for treating electronic components with a heated solvent and an ozonated process fluid is also provided.
    Type: Application
    Filed: March 13, 2001
    Publication date: March 21, 2002
    Inventors: Steven Verhaverbeke, Lewis Liu, Alan Walter, C. Wade Sheen, Christopher McConnell