Patents by Inventor Andras Kuthi

Andras Kuthi 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).

  • Patent number: 6341574
    Abstract: A plasma processing system for processing a substrate which includes a single chamber, substantially azimuthally symmetric plasma processing chamber within which a plasma is both ignited and sustained for the processing. The plasma processing chamber has no separate plasma generation chamber. The plasma processing chamber has an upper end and a lower end. The plasma processing system includes a coupling window disposed at an upper end of the plasma processing chamber and an RF antenna arrangement disposed above a plane defined by the substrate when the substrate is disposed within the plasma processing chamber for the processing. The plasma processing system also includes an electromagnet arrangement disposed above the plane defined by the substrate.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: January 29, 2002
    Assignee: Lam Research Corporation
    Inventors: Andrew D. Bailey, III, Alan M. Schoepp, David J. Hemker, Mark H. Wilcoxson, Andras Kuthi
  • Publication number: 20020007795
    Abstract: A plasma processing system that includes a temperature management system and method that can achieve very accurate temperature control over a plasma processing apparatus is disclosed. In one embodiment, the temperature management system and method operate to achieve tight temperature control over surfaces of the plasma processing apparatus which interact with the plasma during fabrication of semiconductor devices. The tight temperature control offered by the invention can be implemented with combination heating and cooling blocks such that both heating and cooling can be provided from the same thermal interface.
    Type: Application
    Filed: August 30, 2001
    Publication date: January 24, 2002
    Inventors: Andrew D. Bailey, Alan M. Schoepp, Michael G. R. Smith, Andras Kuthi
  • Patent number: 6320320
    Abstract: A plasma processing apparatus for processing a substrate with a plasma is disclosed. The apparatus includes a first RF power source having a first RF frequency, and a process chamber. Further, the apparatus includes a substantially circular antenna operatively coupled to the first RF power source and disposed above a plane defined by the substrate when the substrate is disposed within the process chamber for processing. The substantially circular antenna being configured to induce an electric field inside the process chamber with a first RF energy generated by the first RF power source. The substantially circular antenna including at least a first pair of concentric loops in a first plane and a second pair of concentric loops in a second plane. The first pair of concentric loops and the second pair of concentric loops being substantially identical and symmetrically aligned with one another. The substantially circular antenna forming an azimuthally symmetric plasma inside the process chamber.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: November 20, 2001
    Assignee: Lam Research Corporation
    Inventors: Andrew D. Bailey, III, Alan M. Schoepp, Andras Kuthi
  • Patent number: 6302966
    Abstract: A plasma processing system that includes a temperature management system and method that can achieve very accurate temperature control over a plasma processing apparatus is disclosed. In one embodiment, the temperature management system and method operate to achieve tight temperature control over surfaces of the plasma processing apparatus which interact with the plasma during fabrication of semiconductor devices. The tight temperature control offered by the invention can be implemented with combination heating and cooling blocks such that both heating and cooling can be provided from the same thermal interface.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: October 16, 2001
    Assignee: Lam Research Corporation
    Inventors: Andrew D. Bailey, III, Alan M. Schoepp, Michael G. R. Smith, Andras Kuthi
  • Patent number: 6242360
    Abstract: The present invention provides a plasma processing apparatus, system, and method for providing RF power to a plasma processing chamber. The plasma processing system includes an RF generator, a plasma chamber, a match network box, a first cable, a second cable, and means for electrically isolating the match network box. The RF generator is generates RF power for transmission to the plasma chamber. The plasma chamber receives the RF power for processing the wafer and is characterized by an internal impedance during the plasma processing. The plasma chamber has one or more walls for returning RF currents. The match network box is capable of receiving the RF currents and generates an impedance that matches the internal impedance of the plasma chamber to the impedance of the RF generator. The first cable is coupled between the RF generator and the match network box for transmitting RF power between the RF generator and the match network box.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: June 5, 2001
    Assignee: Lam Research Corporation
    Inventors: Andreas Fischer, Babak Kadkhodayan, Andras Kuthi
  • Patent number: 6106663
    Abstract: Disclosed is a system for processing a semiconductor wafer through plasma etching operations. The system has a process chamber that includes a support chuck for holding the semiconductor wafer and a pair of RF power sources. In another case, the system can be configured such that the electrode is grounded and the pair of RF frequencies are fed to the support chuck (bottom electrode). The system therefore includes an electrode that is positioned within the system and over the semiconductor wafer. The electrode has a center region, a first surface and a second surface. The first surface is configured to receive processing gases from a source that is external to the system and flow the processing gases into the center region. The second surface has a plurality of gas feed holes that are continuously coupled to a corresponding plurality of electrode openings that have electrode opening diameters that are greater than gas feed hole diameters of the plurality of gas feed holes.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: August 22, 2000
    Assignee: Lam Research Corporation
    Inventors: Andras Kuthi, Lumin Li
  • Patent number: 5288969
    Abstract: A system and method are provided for the non-thermal destruction of hazardous waste material using an electrodeless inductively coupled RF plasma torch. The waste material is combined with a controllable source of free electrons, and the RF plasma torch is used to excite the free electrons, raising their temperature to 3000.degree. C. or more. The electrons are maintained at this temperature for a sufficient time to enable the free electrons to dissociate the waste material as a result of collisions and ultraviolet radiation generated in situ by electron-molecule collisions. The source of free electrons is preferably an inert gas such as argon, which may be used as both the waste material carrier gas and the torch gas.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: February 22, 1994
    Assignee: Regents of the University of California
    Inventors: Alfred Y. Wong, Andras Kuthi