Patents by Inventor Ian Latchford

Ian Latchford 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: 10062600
    Abstract: A system for processing substrates in plasma chambers, such that all substrates transport and loading/unloading operations are performed in atmospheric environment, but processing is performed in vacuum environment. The substrates are transported throughout the system on carriers. The system's chambers are arranged linearly, such that carriers move from one chamber directly to the next. A conveyor, placed above or below the system's chambers, returns the carriers to the system's entry area after processing is completed. The carriers are configured for supporting substrates of different sizes. The carriers are also configured for flipping the substrates such that both surfaces of the substrates may be processed.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: August 28, 2018
    Assignee: Intevac, Inc.
    Inventors: Terry Bluck, Vinay Shah, Ian Latchford, Alexandru Riposan
  • Patent number: 9525099
    Abstract: An arrangement for supporting substrates during processing, having a wafer carrier with a susceptor for supporting the substrate and confining the substrate to predetermined position. An inner mask is configured for placing on top of the substrate, the inner mask having an opening pattern to mask unprocessed parts of the substrate, but expose remaining parts of the substrate for processing. An outer mask is configured for placing on top of the inner mask, the outer mask having an opening that exposes the part of the inner mask having the opening pattern, but cover the periphery of the inner mask.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: December 20, 2016
    Assignee: INTEVAC, INC.
    Inventors: Terry Bluck, Ian Latchford, Vinay Shah, Alex Riposan
  • Publication number: 20150170947
    Abstract: A system for processing substrates in plasma chambers, such that all substrates transport and loading/unloading operations are performed in atmospheric environment, but processing is performed in vacuum environment. The substrates are transported throughout the system on carriers. The system's chambers are arranged linearly, such that carriers move from one chamber directly to the next. A conveyor, placed above or below the system's chambers, returns the carriers to the system's entry area after processing is completed. The carriers are configured for supporting substrates of different sizes. The carriers are also configured for flipping the substrates such that both surfaces of the substrates may be processed.
    Type: Application
    Filed: February 20, 2015
    Publication date: June 18, 2015
    Inventors: Terry Bluck, Vinay Shah, Ian Latchford, Alexandru Riposan
  • Publication number: 20130276978
    Abstract: An arrangement for supporting substrates during processing, having a wafer carrier with a susceptor for supporting the substrate and confining the substrate to predetermined position. An inner mask is configured for placing on top of the substrate, the inner mask having an opening pattern to mask unprocessed parts of the substrate, but expose remaining parts of the substrate for processing. An outer mask is configured for placing on top of the inner mask, the outer mask having an opening that exposes the part of the inner mask having the opening pattern, but cover the periphery of the inner mask.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 24, 2013
    Applicant: Intevac, Inc.
    Inventors: Terry Bluck, Ian Latchford, Vinay Shah, Alex Riposan
  • Patent number: 7332262
    Abstract: A method for forming a patterned amorphous carbon layer in a semiconductor stack, including forming an amorphous carbon layer on a substrate and forming a silicon containing photoresist layer on top of the amorphous carbon layer. Thereafter, the method includes developing a pattern transferred into the resist layer with a photolithographic process and etching through the amorphous carbon layer in at least one region defined by the pattern in the resist layer, wherein a resist layer hard mask is formed in an outer portion of the photoresist layer during etching.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: February 19, 2008
    Assignee: Applied Materials, Inc.
    Inventors: Ian Latchford, Christopher Dennis Bencher, Yuxiang Wang, Mario Dave Silvetti
  • Publication number: 20070128538
    Abstract: A method of forming an integrated circuit using an amorphous carbon film. The amorphous carbon film is formed by thermally decomposing a gas mixture comprising a hydrocarbon compound and an inert gas. The amorphous carbon film is compatible with integrated circuit fabrication processes. In one integrated circuit fabrication process, the amorphous carbon film is used as a hardmask. In another integrated circuit fabrication process, the amorphous carbon film is an anti-reflective coating (ARC) for deep ultraviolet (DUV) lithography. In yet another integrated circuit fabrication process, a multi-layer amorphous carbon anti-reflective coating is used for DUV lithography.
    Type: Application
    Filed: February 9, 2007
    Publication date: June 7, 2007
    Inventors: KEVIN FAIRBAIRN, Michael Rice, Timothy Weidman, Christopher Ngai, Ian Latchford, Christopher Bencher, Yuxiang Wang
  • Publication number: 20060102078
    Abstract: Described is a method for manufacturing wafers and a manufacturing system in which the footprint is substantially contained in a size approximating the processing chambers. Single wafers move horizontally through the system and processing occurs simultaneously in groups of processing chambers. Various manufacturing processes employed in making semiconductor wafers are included as processing chambers in the system.
    Type: Application
    Filed: November 18, 2004
    Publication date: May 18, 2006
    Inventors: Kevin Fairbairn, Hari Ponnekanti, Christopher Lane, Robert Weiss, Ian Latchford, Terry Bluck
  • Patent number: 6967072
    Abstract: A method for forming a patterned amorphous carbon layer in a semiconductor stack, including forming an amorphous carbon layer on a substrate and forming a silicon containing photoresist layer on top of the amorphous carbon layer. Thereafter, the method includes developing a pattern transferred into the resist layer with a photolithographic process and etching through the amorphous carbon layer in at least one region defined by the pattern in the resist layer, wherein a resist layer hard mask is formed in an outer portion of the photoresist layer during etching.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: November 22, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Ian Latchford, Christopher Dennis Bencher, Yuxiang Wang, Mario Dave Silvetti
  • Publication number: 20050233257
    Abstract: A method for forming a patterned amorphous carbon layer in a semiconductor stack, including forming an amorphous carbon layer on a substrate and forming a silicon containing photoresist layer on top of the amorphous carbon layer. Thereafter, the method includes developing a pattern transferred into the resist layer with a photolithographic process and etching through the amorphous carbon layer in at least one region defined by the pattern in the resist layer, wherein a resist layer hard mask is formed in an outer portion of the photoresist layer during etching.
    Type: Application
    Filed: June 16, 2005
    Publication date: October 20, 2005
    Inventors: Ian Latchford, Christopher Bencher, Yuxiang Wang, Mario Silvetti
  • Publication number: 20050112509
    Abstract: A method of forming an integrated circuit using an amorphous carbon film. The amorphous carbon film is formed by thermally decomposing a gas mixture comprising a hydrocarbon compound and an inert gas. The amorphous carbon film is compatible with integrated circuit fabrication processes. In one integrated circuit fabrication process, the amorphous carbon film is used as a hardmask. In another integrated circuit fabrication process, the amorphous carbon film is an anti-reflective coating (ARC) for deep ultraviolet (DUV) lithography. In yet another integrated circuit fabrication process, a multi-layer amorphous carbon anti-reflective coating is used for DUV lithography.
    Type: Application
    Filed: December 21, 2004
    Publication date: May 26, 2005
    Inventors: Kevin Fairbairn, Michael Rice, Timothy Weidman, Christopher Ngai, Ian Latchford, Christopher Bencher, Yuxiang Wang
  • Patent number: 6868856
    Abstract: Methods and apparatus for cleaning semiconductor processing equipment. The apparatus include both local and remote gas dissociators coupled to a semiconductor processing chamber to be cleaned. The methods include introducing a precursor gas into the remote dissociator where the gas is dissociated and introducing a portion of the dissociated gas into the chamber. Another portion of the dissociated gas which re-associates before introduction into the chamber is also introduced into the chamber where it is again dissociated. The dissociated gas combines with contaminants in the chamber and is exhausted from the chamber along with the contaminants.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: March 22, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Thomas Nowak, Ian Latchford, Tsutomu Tanaka, Bok Heon Kim, Ping Xu, Jason Foster, Heath B. DeShong, Martin Seamons
  • Publication number: 20030010355
    Abstract: Methods and apparatus for cleaning semiconductor processing equipment. The apparatus include both local and remote gas dissociators coupled to a semiconductor processing chamber to be cleaned. The methods include introducing a precursor gas into the remote dissociator where the gas is dissociated and introducing a portion of the dissociated gas into the chamber. Another portion of the dissociated gas which re-associates before introduction into the chamber is also introduced into the chamber where it is again dissociated. The dissociated gas combines with contaminants in the chamber and is exhausted from the chamber along with the contaminants.
    Type: Application
    Filed: July 13, 2001
    Publication date: January 16, 2003
    Applicant: Applied Materials, Inc
    Inventors: Thomas Nowak, Ian Latchford, Tsutomu Tanaka, Bok H. Kim, Ping Xu, Jason Foster, Heath B. DeShong, Martin Seamons
  • Publication number: 20020001778
    Abstract: A method for forming a patterned amorphous carbon layer in a semiconductor stack, including forming an amorphous carbon layer on a substrate and forming a silicon containing photoresist layer on top of the amorphous carbon layer. Thereafter, the method includes developing a pattern transferred into the resist layer with a photolithographic process and etching through the amorphous carbon layer in at least one region defined by the pattern in the resist layer, wherein a resist layer hard mask is formed in an outer portion of the photoresist layer during etching.
    Type: Application
    Filed: August 2, 2001
    Publication date: January 3, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Ian Latchford, Christopher Dennis Bencher, Yuxiang Wang, Mario Dave Silvetti