Patents by Inventor Wendy Yeh

Wendy Yeh 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: 20080096138
    Abstract: An anti-reflective hard mask layer left on a radiation-blocking layer during fabrication of a reticle provides functionality when the reticle is used in a semiconductor device manufacturing process.
    Type: Application
    Filed: November 9, 2007
    Publication date: April 24, 2008
    Inventors: Christopher Bencher, Melvin Montgomery, Alexander Buxbaum, Yung-Hee Lee, Jian Ding, Gilad Almogy, Wendy Yeh
  • Publication number: 20070243721
    Abstract: A method of processing a substrate comprising depositing a layer comprising amorphous carbon on the substrate and then exposing the substrate to electromagnetic radiation have one or more wavelengths between about 600 nm and about 1000 nm under conditions sufficient to heat the layer to a temperature of at least about 300° C. is provided. Optionally, the layer further comprises a dopant selected from the group consisting of nitrogen, boron, phosphorus, fluorine, and combinations thereof. In one aspect, the layer comprising amorphous carbon is an anti-reflective coating and an absorber layer that absorbs the electromagnetic radiation and anneals a top surface layer of the substrate. In one aspect, the substrate is exposed to the electromagnetic radiation in a laser annealing process.
    Type: Application
    Filed: June 14, 2007
    Publication date: October 18, 2007
    Inventors: LUC AUTRYVE, Christopher Bencher, Dean Jennings, Haifan Liang, Abhilash Mayur, Mark Yam, Wendy Yeh, Richard Brough
  • Publication number: 20070072422
    Abstract: A process for selectively removing photoresist, organic overlayers, and/or polymers/residues from a substrate without altering the surface chemistry and adhesion properties of the underlying substrate layers is provided. Generally, the process includes pretreating the substrate with hydrogen (e.g., by way of a hydrogen-based plasma) prior to deposition of a photoresist layer, and then ashing the substrate with a hydrogen-based plasma to selectively remove the photoresist, organic overlayers, and/or polymers/residues from the substrate during etching, post-etch, rework, etc. The hydrogen-based ashing process of the invention may be used post-etch to remove the residue photoresist, or may be used in a rework stripping process to remove misaligned patterns. The hydrogen-based ashing process following the initial hydrogen surface pretreatment substantially reduces surface chemistry poisoning, while retaining adequate adhesion properties following ashing.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 29, 2007
    Applicant: Applied Materials, Inc.
    Inventor: Wendy Yeh
  • Publication number: 20060292808
    Abstract: A method of processing a substrate comprising depositing a layer comprising amorphous carbon on the substrate and then laser annealing the substrate is provided. Optionally, the layer further comprises a dopant selected from the group consisting of nitrogen, boron, phosphorus, fluorine, and combinations thereof. In one aspect, the layer comprising amorphous carbon is an anti-reflective coating and an absorber layer that absorbs electromagnetic radiation emitted by the laser and anneals a top surface layer of the substrate.
    Type: Application
    Filed: August 24, 2006
    Publication date: December 28, 2006
    Inventors: Luc Autryve, Chris Bencher, Dean Jennings, Haifan Liang, Abhilash Mayur, Mark Yam, Wendy Yeh, Richard Brough
  • Publication number: 20060231524
    Abstract: A method of etching a substrate is provided. The method of etching a substrate includes transferring a pattern into the substrate using a double patterned amorphous carbon layer on the substrate as a hardmask. Optionally, a non-carbon based layer is deposited on the amorphous carbon layer as a capping layer before the pattern is transferred into the substrate.
    Type: Application
    Filed: June 2, 2006
    Publication date: October 19, 2006
    Inventors: Wei Liu, Jim He, Sang Ahn, Meihua Shen, Hichem M'Saad, Wendy Yeh, Christopher Bencher
  • Publication number: 20060222771
    Abstract: A method is provided for forming an amorphous carbon layer, deposited on a dielectric material such as oxide, nitride, silicon carbide, carbon doped oxide, etc., or a metal layer such as tungsten, aluminum or poly-silicon. The method includes the use of chamber seasoning, variable thickness of seasoning film, wider spacing, variable process gas flows, post-deposition purge with inert gas, and post-deposition plasma purge, among others, to make the deposition of an amorphous carbon film at low deposition temperatures possible without any defects or particle contamination.
    Type: Application
    Filed: June 16, 2006
    Publication date: October 5, 2006
    Inventors: Martin Seamons, Wendy Yeh, Sudha Rathi, Heraldo Botelho
  • Publication number: 20060014397
    Abstract: A method is provided for forming an amorphous carbon layer, deposited on a dielectric material such as oxide, nitride, silicon carbide, carbon doped oxide, etc., or a metal layer such as tungsten, aluminum or poly-silicon. The method includes the use of chamber seasoning, variable thickness of seasoning film, wider spacing, variable process gas flows, post-deposition purge with inert gas, and post-deposition plasma purge, among others, to make the deposition of an amorphous carbon film at low deposition temperatures possible without any defects or particle contamination.
    Type: Application
    Filed: July 13, 2004
    Publication date: January 19, 2006
    Inventors: Martin Seamons, Wendy Yeh, Sudha Rathi, Heraldo Botelho
  • Publication number: 20050287771
    Abstract: Methods are provided for depositing amorphous carbon materials. In one aspect, the invention provides a method for processing a substrate including positioning the substrate in a processing chamber, introducing a processing gas into the processing chamber, wherein the processing gas comprises a carrier gas, hydrogen, and one or more precursor compounds, generating a plasma of the processing gas by applying power from a dual-frequency RF source, and depositing an amorphous carbon layer on the substrate.
    Type: Application
    Filed: February 24, 2005
    Publication date: December 29, 2005
    Inventors: Martin Seamons, Wendy Yeh, Sudha Rathi, Deenesh Padhi, Andy Luan, Sum-Yee Tang, Priya Kulkarni, Visweswaren Sivaramakrishnan, Bok Kim, Hichem M'Saad, Yuxiang Wang, Michael Kwan
  • Publication number: 20050167394
    Abstract: A method of etching a substrate is provided. The method of etching a substrate includes transferring a pattern into the substrate using a double patterned amorphous carbon layer on the substrate as a hardmask. Optionally, a non-carbon based layer is deposited on the amorphous carbon layer as a capping layer before the pattern is transferred into the substrate.
    Type: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: Wei liu, Jim He, Sang Ahn, Meihua Shen, Hichem M'Saad, Wendy Yeh, Chistopher Bencher
  • Publication number: 20050170655
    Abstract: We have reduced the critical dimension bias for reticle fabrication. Pattern transfer to the radiation-blocking layer of the reticle substrate essentially depends upon use of a hard mask to which the pattern is transferred from a photoresist. The photoresist pull back which occurs during pattern transfer to the hard mask is minimalized. In addition, a hard mask material having anti-reflective properties which are matched to the reflective characteristics of the radiation-blocking layer enables a reduction in critical dimension size and an improvement in the pattern feature integrity in the hard mask itself. An anti-reflective hard mask layer left on the radiation-blocking layer provides functionality when the reticle is used in a semiconductor device manufacturing process.
    Type: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: Christopher Bencher, Melvin Montgomery, Alexander Buxbaum, Yung-Hee Lee, Jian Ding, Gilad Almogy, Wendy Yeh
  • Publication number: 20050150452
    Abstract: The present invention provides a process kit for a semiconductor processing chamber. The processing chamber is a vacuum processing chamber that includes a chamber body defining an interior processing region. The processing region receives a substrate for processing, and also supports equipment pieces of the process kit. The process kit includes a pumping liner configured to be placed within the processing region of the processing chamber, and a C-channel liner configured to be placed along an outer diameter of the pumping liner. The pumping liner and the C-channel liner have novel interlocking features designed to inhibit parasitic pumping of processing or cleaning gases from the processing region. The invention further provides a semiconductor processing chamber having an improved process kit, such as the kit described. In one arrangement, the chamber is a tandem processing chamber.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 14, 2005
    Inventors: Soovo Sen, Mark Fodor, Martin Seamons, Priya Kulkarni, Visweswaren Sivaramakrishnan, Sudha Rathi, Tsutomu Shimayama, Thomas Nowak, Wendy Yeh
  • Publication number: 20050074956
    Abstract: A method of processing a substrate comprising depositing a layer comprising amorphous carbon on the substrate and then laser annealing the substrate is provided. Optionally, the layer further comprises a dopant selected from the group consisting of nitrogen, boron, phosphorus, fluorine, and combinations thereof. In one aspect, the layer comprising amorphous carbon is an anti-reflective coating and an absorber layer that absorbs electromagnetic radiation emitted by the laser and anneals a top surface layer of the substrate.
    Type: Application
    Filed: October 3, 2003
    Publication date: April 7, 2005
    Inventors: Luc Autryve, Chris Bencher, Dean Jennings, Haifan Liang, Abhilash Mayur, Mark Yam, Wendy Yeh, Richard Brough
  • Publication number: 20050074986
    Abstract: A method of processing a substrate comprising depositing a layer comprising amorphous carbon on the substrate and then exposing the substrate to electromagnetic radiation have one or more wavelengths between about 600 nm and about 1000 nm under conditions sufficient to heat the layer to a temperature of at least about 300° C. is provided. Optionally, the layer further comprises a dopant selected from the group consisting of nitrogen, boron, phosphorus, fluorine, and combinations thereof. In one aspect, the layer comprising amorphous carbon is an anti-reflective coating and an absorber layer that absorbs the electromagnetic radiation and anneals a top surface layer of the substrate. In one aspect, the substrate is exposed to the electromagnetic radiation in a laser annealing process.
    Type: Application
    Filed: January 15, 2004
    Publication date: April 7, 2005
    Inventors: Luc Autryve, Chris Bencher, Dean Jennings, Haifan Liang, Abhilash Mayur, Mark Yam, Wendy Yeh, Richard Brough