Patents by Inventor Karson Knutson

Karson Knutson 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: 7892971
    Abstract: An annealing method and apparatus for semiconductor manufacturing is described. The method and apparatus allows an anneal that can span a thermal budget and be tailored to a specific process and its corresponding activation energy. In some cases, the annealing method spans a timeframe from about 1 millisecond to about 1 second. An example for this annealing method includes a sub-second anneal method where a reduction in the formation of nickel pipes is achieved during salicide processing. In some cases, the method and apparatus combine the rapid heating rate of a sub-second anneal with a thermally conductive substrate to provide quick cooling for a silicon wafer. Thus, the thermal budget of the sub-second anneal methods may span the range from conventional RTP anneals to flash annealing processes (including duration of the anneal, as well as peak temperature). Other embodiments are described.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: February 22, 2011
    Assignee: Intel Corporation
    Inventors: Jack Hwang, Sridhar Govindaraju, Karson Knutson, Harold Kennel, Aravind Killampalli
  • Patent number: 7767509
    Abstract: Methods and associated structures of forming a microelectronic device are described. Those methods may include implanting the source/drain region, forming a multilayer cap on the source/drain region, annealing the source/drain region, and removing the multilayer cap.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: August 3, 2010
    Assignee: Intel Corporation
    Inventors: Mark Liu, Rob James, Jake Jensen, Karson Knutson
  • Patent number: 7758238
    Abstract: Temperature measurement using a pyrometer in a processing chamber is described. The extraneous light received by the pyrometer is reduced. In one example, a photodetector is used to measure the intensity of light within the processing chamber at a defined wavelength. A temperature circuit is used to convert the measured light intensity to a temperature signal, and a doped optical window between a heat source and a workpiece inside processing chamber is used to absorb light at the defined wavelength directed at the workpiece from the heat source.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: July 20, 2010
    Assignee: Intel Corporation
    Inventors: Sridhar Govindaraju, Karson Knutson, Harold Kennel, Aravind Killampalli, Jack Hwang
  • Publication number: 20090323759
    Abstract: Temperature measurement using a pyrometer in a processing chamber is described. The extraneous light received by the pyrometer is reduced. In one example, a photodetector is used to measure the intensity of light within the processing chamber at a defined wavelength. A temperature circuit is used to convert the measured light intensity to a temperature signal, and a doped optical window between a heat source and a workpiece inside processing chamber is used to absorb light at the defined wavelength directed at the workpiece from the heat source.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Sridhar Govindaraju, Karson Knutson, Harold Kennel, Aravind Killampalli, Jack Hwang
  • Publication number: 20090325392
    Abstract: An annealing method and apparatus for semiconductor manufacturing is described. The method and apparatus allows an anneal that can span a thermal budget and be tailored to a specific process and its corresponding activation energy. In some cases, the annealing method spans a timeframe from about 1 millisecond to about 1 second. An example for this annealing method includes a sub-second anneal method where a reduction in the formation of nickel pipes is achieved during salicide processing. In some cases, the method and apparatus combine the rapid heating rate of a sub-second anneal with a thermally conductive substrate to provide quick cooling for a silicon wafer. Thus, the thermal budget of the sub-second anneal methods may span the range from conventional RTP anneals to flash annealing processes (including duration of the anneal, as well as peak temperature). Other embodiments are described.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Jack Hwang, Sridhar Govindaraju, Karson Knutson, Harold Kennel, Aravind Killampalli
  • Publication number: 20090071918
    Abstract: A vertical semiconductor wafer carrier comprises a circular base, a first wafer support rod mounted at a first position proximate a perimeter of the circular base, a second wafer support rod mounted at a second position proximate the perimeter of the circular base, wherein an angle ?12 formed between the first position and the second position relative to a center of the circular base is around 20°, a third wafer support rod mounted at a third position proximate the perimeter of the circular base, and a fourth wafer support rod mounted at a fourth position proximate the perimeter of the circular base, wherein an angle ?34 formed between the third position and the fourth position relative to the center of the circular base is around 20°, and wherein an angle ?14 formed between the first and fourth positions relative to the center of the circular base is around 180°.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 19, 2009
    Inventors: Panchapakesan Ramanarayanan, Karson Knutson, Peter G. Tolchinsky, Christopher Parker
  • Publication number: 20080242038
    Abstract: Methods and associated structures of forming a microelectronic device are described. Those methods may include implanting the source/drain region, forming a multilayer cap on the source/drain region, annealing the source/drain region, and removing the multilayer cap.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 2, 2008
    Inventors: Mark Liu, Rob James, Jake Jensen, Karson Knutson
  • Publication number: 20080242117
    Abstract: In some embodiments radiation incident on a wafer is provided to perform an annealing process, and the wafer is cooled at an edge portion to reduce temperature and stress on the wafer. Other embodiments are described and claimed.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: Panchapakesan Ramanarayanan, Karson Knutson, Jack Hwang, John Leonard, Sridhar Govindaraju
  • Publication number: 20060286807
    Abstract: Embodiments relate to a substrate or wafer edge support having an emmisivity greater than that of a silicon wafer, where the edge support is for supporting a wafer during processing to form circuit devices on or in the wafer. Embodiments also include temperature sensors, heat conducting gas jets, and photonic energy can be directed to sense and control the temperature of the edge support and/or wafer edge during annealing to reduce temperature roll-off or roll-up at the edge as compared to the center of the wafer. Specifically, use of an edge support having an emmisivity greater than or equal to that of the wafer during processing allows helium gas jets directed at the edge support and/or wafer edge to reduce temperature roll-up at the edge during annealing. Because wafers from different processes and anneal locations may all have different emmisivities, use of the feedback loop will enable one edge ring to support the uniform anneal of wafers with a range of different emmisivities.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 21, 2006
    Inventors: Jack Hwang, Robert James, Eric Lambert, Jonathan Leonard, Richard Brindos, Karson Knutson, Mark Armstrong, Justin Sandford
  • Publication number: 20060065849
    Abstract: Flash lamp apparatuses that generate electromagnetic radiation with wavelengths greater than and/or less than a defined range of wavelengths are disclosed.
    Type: Application
    Filed: September 28, 2004
    Publication date: March 30, 2006
    Inventors: Jack Hwang, Stephen Cea, Paul Davids, Karson Knutson
  • Publication number: 20060004493
    Abstract: Embodiments relate to a substrate or wafer edge support having an emmisivity greater than that of a silicon wafer, where the edge support is for supporting a wafer during processing to form circuit devices on or in the wafer. Embodiments also include temperature sensors, heat conducting gas jets, and photonic energy can be directed to sense and control the temperature of the edge support and/or wafer edge during annealing to reduce temperature roll-off or roll-up at the edge as compared to the center of the wafer. Specifically, use of an edge support having an emmisivity greater than or equal to that of the wafer during processing allows helium gas jets directed at the edge support and/or wafer edge to reduce temperature roll-up at the edge during annealing. Because wafers from different processes and anneal locations may all have different emmisivities, use of the feedback loop will enable one edge ring to support the uniform anneal of wafers with a range of different emmisivities.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Jack Hwang, Robert James, Eric Lambert, Jonathan Leonard, Richard Brindos, Karson Knutson, Mark Armstrong, Justin Sandford
  • Publication number: 20050211697
    Abstract: A method, apparatus, and system including a reflecting device having a plurality of reflecting zones with associated reflectivities for reflecting light from a flash lamp, are described herein.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 29, 2005
    Inventors: Karson Knutson, Jack Hwang