Patents by Inventor Christopher Dennis Bencher

Christopher Dennis Bencher 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: 20140147700
    Abstract: A method and apparatus for forming magnetic media substrates is provided. A patterned resist layer is formed on a substrate having a magnetically susceptible layer. A conformal protective layer is formed over the patterned resist layer to prevent degradation of the pattern during subsequent processing. The substrate is subjected to an energy treatment wherein energetic species penetrate portions of the patterned resist and conformal protective layer according to the pattern formed in the patterned resist, impacting the magnetically susceptible layer and modifying a magnetic property thereof. The patterned resist and conformal protective layers are then removed, leaving a magnetic substrate having a pattern of magnetic properties with a topography that is substantially unchanged.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 29, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Christopher Dennis BENCHER, Roman GOUK, Steven VERHAVERBEKE, Li-Qun XIA, Yong-Won LEE, Matthew D. SCOTNEY-CASTLE, Martin A. HILKENE, Peter I. PORSHNEV
  • Patent number: 8357618
    Abstract: A method for doubling the frequency of a lithographic process using a photo-resist template mask is described. A device layer having a photo-resist layer formed thereon is first provided. The photo-resist layer is patterned to form a photo-resist template mask. A spacer-forming material layer is deposited over the photo-resist template mask. The spacer-forming material layer is etched to form a spacer mask and to expose the photo-resist template mask. The photo-resist template mask is then removed and an image of the spacer mask is finally transferred to the device layer.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: January 22, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Christopher Dennis Bencher, Huixiong Dai, Li Yan Miao, Hao Chen
  • Patent number: 8338316
    Abstract: A plasma enhanced physical vapor deposition process deposits an amorphous carbon layer on an ion-implanted wafer for use in dynamic surface annealing of the wafer with an intense line beam of a laser wavelength. The deposition process is carried out at a wafer temperature below the dopant clustering threshold temperature, and includes introducing the wafer into a chamber having a carbon-containing target overlying the wafer, and furnishing a carrier gas into the chamber. The process further includes generating a wafer bias voltage and applying target source power to the carbon-containing target sufficient to produce ion bombardment of the carbon-containing target. The wafer bias voltage is set to a level at which the amorphous carbon layer that is deposited has a desired extinction coefficient at the laser wavelength.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: December 25, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Vijay Parihar, Christopher Dennis Bencher, Rajesh Kanuri, Marlon E. Menezes
  • Patent number: 8183150
    Abstract: The present invention provides semiconductor device formed by an in situ plasma reducing process to reduce oxides or other contaminants, using a compound of nitrogen and hydrogen, typically ammonia, at relatively low temperatures prior to depositing a subsequent layer thereon. The adhesion characteristics of the layers are improved and oxygen presence is reduced compared to the typical physical sputter cleaning process of an oxide layer. This process may be particularly useful for the complex requirements of a dual damascene structure, especially with copper applications.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: May 22, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Judy H. Huang, Christopher Dennis Bencher, Sudha Rathi, Christopher S. Ngai, Bok Hoen Kim
  • Patent number: 8084310
    Abstract: Embodiments of the present invention pertain to methods of forming patterned features on a substrate having a reduced pitch in two dimensions as compared to what is possible using standard photolithography processing techniques using a single high-resolution photomask. A spacer layer is formed over a two-dimensional square grid of cores with a thickness chosen to leave a dimple at the center of four cores on the corners of a square. The spacer layer is etched back to reveal the substrate at the centers of the square. Removing the core material results in double the pattern density of the lithographically defined grid of cores. The regions of exposed substrate may be filled again with core material and the process repeated to quadruple the pattern density.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: December 27, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Bencherki Mebarki, Li Yan Miao, Christopher Dennis Bencher, Jen Shu
  • Publication number: 20110223773
    Abstract: A plasma enhanced physical vapor deposition process deposits an amorphous carbon layer on an ion-implanted wafer for use in dynamic surface annealing of the wafer with an intense line beam of a laser wavelength. The deposition process is carried out at a wafer temperature below the dopant clustering threshold temperature, and includes introducing the wafer into a chamber having a carbon-containing target overlying the wafer, and furnishing a carrier gas into the chamber. The process further includes generating a wafer bias voltage and applying target source power to the carbon-containing target sufficient to produce ion bombardment of the carbon-containing target. The wafer bias voltage is set to a level at which the amorphous carbon layer that is deposited has a desired extinction coefficient at the laser wavelength.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 15, 2011
    Inventors: Vijay Parihar, Christopher Dennis Bencher, Rajesh Kanuri, Marlon E. Menezes
  • Patent number: 7989366
    Abstract: Methods are disclosed for activating dopants in a doped semiconductor substrate. A carbon precursor is flowed into a substrate processing chamber within which the doped semiconductor substrate is disposed. A plasma is formed from the carbon precursor in the substrate processing chamber. A carbon film is deposited over the substrate with the plasma. A temperature of the substrate is maintained while depositing the carbon film less than 500° C. The deposited carbon film is exposed to electromagnetic radiation for a period less than 10 ms, and has an extinction coefficient greater than 0.3 at a wavelength comprised by the electromagnetic radiation.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: August 2, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Jeffrey C. Munro, Srinivas D. Nemani, Young S. Lee, Marlon Menezes, Christopher Dennis Bencher, Vijay Parihar
  • Patent number: 7968473
    Abstract: A plasma enhanced physical vapor deposition process deposits an amorphous carbon layer on an ion-implanted wafer for use in dynamic surface annealing of the wafer with an intense line beam of a laser wavelength. The deposition process is carried out at a wafer temperature below the dopant clustering threshold temperature, and includes introducing the wafer into a chamber having a carbon-containing target overlying the wafer, and furnishing a carrier gas into the chamber. The process further includes generating a wafer bias voltage and applying target source power to the carbon-containing target sufficient to produce ion bombardment of the carbon-containing target. The wafer bias voltage is set to a level at which the amorphous carbon layer that is deposited has a desired extinction coefficient at the laser wavelength.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: June 28, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Vijay Parihar, Christopher Dennis Bencher, Rajesh Kanuri, Marlon E. Menezes
  • Patent number: 7737040
    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: Grant
    Filed: November 9, 2007
    Date of Patent: June 15, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Christopher Dennis Bencher, Melvin Warren Montgomery, Alexander Buxbaum, Yung-Hee Yvette Lee, Jian Ding, Gilad Almogy, Wendy H. Yeh
  • Publication number: 20100136792
    Abstract: Embodiments of the present invention pertain to methods of forming patterned features on a substrate having a reduced pitch in two dimensions as compared to what is possible using standard photolithography processing techniques using a single high-resolution photomask. A spacer layer is formed over a two-dimensional square grid of cores with a thickness chosen to leave a dimple at the center of four cores on the corners of a square. The spacer layer is etched back to reveal the substrate at the centers of the square. Removing the core material results in double the pattern density of the lithographically defined grid of cores. The regions of exposed substrate may be filled again with core material and the process repeated to quadruple the pattern density.
    Type: Application
    Filed: October 21, 2009
    Publication date: June 3, 2010
    Applicant: Applied Materials, Inc.
    Inventors: Bencherki Mebarki, Li Yan Miao, Christopher Dennis Bencher, Jen Shu
  • Patent number: 7709396
    Abstract: Embodiments of the present invention pertain to methods of forming patterned features on a substrate having an increased density (i.e. reduced pitch) as compared to what is possible using standard photolithography processing techniques using a single high-resolution photomask while also allowing both the width of the patterned features and spacing (trench width) between the patterned features to vary within an integrated circuit.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: May 4, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Christopher Dennis Bencher, Jing Tang
  • Publication number: 20100075503
    Abstract: Embodiments of the present invention pertain to methods of forming patterned features on a substrate having an increased density (i.e. reduced pitch) as compared to what is possible using standard photolithography processing techniques using a single high-resolution photomask while also allowing both the width of the patterned features and spacing (trench width) between the patterned features to vary within an integrated circuit.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 25, 2010
    Applicant: Applied Materials, Inc.
    Inventors: CHRISTOPHER DENNIS BENCHER, Jing Tang
  • Publication number: 20100022100
    Abstract: A method is provided for processing a substrate surface by delivering a first gas mixture comprising a first organosilicon compound, a first oxidizing gas, and one or more hydrocarbon compounds into a chamber at deposition conditions sufficient to deposit a first low dielectric constant film on the substrate surface. A second gas mixture having a second organosilicon compound and a second oxidizing gas is delivered into the chamber at deposition conditions sufficient to deposit a second low dielectric constant film on the first low dielectric constant film. The flow rate of the second oxidizing gas into the chamber is increased, and the flow rate of the second organosilicon compound into the chamber is decreased to deposit an oxide rich cap on the second low dielectric constant film.
    Type: Application
    Filed: October 5, 2009
    Publication date: January 28, 2010
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Ping Xu, Christopher Dennis Bencher
  • Patent number: 7608300
    Abstract: A variety of techniques may be employed alone or in combination to reduce the incidence of defects arising in dielectric stack structures formed by chemical vapor deposition (CVD). Incidence of a first defect type attributable to reaction between an unreacted species of a prior CVD step and reactants of a subsequent CVD step, is reduced by exposing a freshly-deposited dielectric layer to a plasma before any additional layers are deposited. Incidence of a second defect type attributable to the presence of incompletely vaporized CVD liquid precursor material, is reduced by exposing the freshly-deposited dielectric layer to a plasma, and/or by continuing the flow of carrier gas through an injection valve for a period beyond the conclusion of the CVD step.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: October 27, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Christopher Dennis Bencher, Lee Luo
  • Patent number: 7598183
    Abstract: A method is provided for processing a substrate surface by delivering a first gas mixture comprising a first organosilicon compound, a first oxidizing gas, and one or more hydrocarbon compounds into a chamber at deposition conditions sufficient to deposit a first low dielectric constant film on the substrate surface. A second gas mixture having a second organosilicon compound and a second oxidizing gas is delivered into the chamber at deposition conditions sufficient to deposit a second low dielectric constant film on the first low dielectric constant film. The flow rate of the second oxidizing gas into the chamber is increased, and the flow rate of the second organosilicon compound into the chamber is decreased to deposit an oxide rich cap on the second low dielectric constant film.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: October 6, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Ping Xu, Christopher Dennis Bencher
  • Patent number: 7588990
    Abstract: A plasma enhanced physical vapor deposition process deposits an amorphous carbon layer on an ion-implanted wafer for use in dynamic surface annealing of the wafer with an intense line beam of a laser wavelength. The deposition process is carried out at a wafer temperature below the dopant clustering threshold temperature, and includes introducing the wafer into a chamber and furnishing a hydrocarbon process gas into the chamber, preferably propylene (C3H6) or toluene (C7H8) or acetylene (C2H2) or a mixture of acetylene and methane (C2H4). The process further includes inductively coupling RF plasma source power into the chamber while and applying RF plasma bias power to the wafer. The wafer bias voltage is set to a level at which the amorphous carbon layer that is deposited has a desired stress (compressive or tensile). We have discovered that at a wafer temperature less than or equal to 475 degrees C.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: September 15, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Vijay Parihar, Christopher Dennis Bencher, Rajesh Kanuri, Marlon E. Menezes
  • Patent number: 7547621
    Abstract: A gate hard mask is deposited on a gate structure using low pressure chemical vapor deposition (LPCVD). By doing so, the wet etch removal ratio (WERR) of the gate hard mask relative to the underlying polysilicon gate layer is increased when compared to prior art hard masks. The LPCVD gate hard mask will not only etch faster than prior art hard masks, but it will also reduce undercutting of the gate oxide. To provide additional control of the wet etch rate, the LPCVD hard mask can be annealed. The annealing can be tailored to achieve the desired etching rate.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: June 16, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Rajesh Kanuri, Chorng-Ping Chang, Christopher Dennis Bencher, Hoiman Hung
  • Publication number: 20090111281
    Abstract: A method for doubling the frequency of a lithographic process using a photo-resist template mask is described. A device layer having a photo-resist layer formed thereon is first provided. The photo-resist layer is patterned to form a photo-resist template mask. A spacer-forming material layer is deposited over the photo-resist template mask. The spacer-forming material layer is etched to form a spacer mask and to expose the photo-resist template mask. The photo-resist template mask is then removed and an image of the spacer mask is finally transferred to the device layer.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventors: Christopher Dennis Bencher, Huixiong Dai, Li Yan Miao, Hao Chen
  • Patent number: 7507677
    Abstract: A method is provided for processing a substrate including removing amorphous carbon material disposed on a low k dielectric material with minimal or reduced defect formation and minimal dielectric constant change of the low k dielectric material. In one aspect, the invention provides a method for processing a substrate including depositing at least one dielectric layer on a substrate surface, wherein the dielectric layer comprises silicon, oxygen, and carbon and has a dielectric constant of about 3 or less, forming amorphous carbon material on the at least one dielectric layer, and removing the one or more amorphous carbon layers by exposing the one or more amorphous carbon layers to a plasma of a hydrogen-containing gas.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: March 24, 2009
    Assignee: Applied Materials, Inc.
    Inventor: Christopher Dennis Bencher
  • Publication number: 20090050902
    Abstract: The present invention provides semiconductor device formed by an in situ plasma reducing process to reduce oxides or other contaminants, using a compound of nitrogen and hydrogen, typically ammonia, at relatively low temperatures prior to depositing a subsequent layer thereon. The adhesion characteristics of the layers are improved and oxygen presence is reduced compared to the typical physical sputter cleaning process of an oxide layer. This process may be particularly useful for the complex requirements of a dual damascene structure, especially with copper applications.
    Type: Application
    Filed: October 24, 2008
    Publication date: February 26, 2009
    Inventors: Judy H. Huang, Christopher Dennis Bencher, Sudha Rathi, Christopher S. Ngai, Bok Hoen Kim