Patents by Inventor Dan Millward

Dan Millward 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: 8273647
    Abstract: Some embodiments include methods of forming patterns in substrates by utilizing block copolymer assemblies as patterning materials. A block copolymer assembly may be formed over a substrate, with the assembly having first and second subunits arranged in a pattern of two or more domains. Metal may be selectively coupled to the first subunits relative to the second subunits to form a pattern of metal-containing regions and non-metal-containing regions. At least some of the block copolymer may be removed to form a patterned mask corresponding to the metal-containing regions. A pattern defined by the patterned mask may be transferred into the substrate with one or more etches. In some embodiments, the patterning may be utilized to form integrated circuitry, such as, for example, gatelines.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: September 25, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Scott E. Sills
  • Patent number: 8236899
    Abstract: Zwitterionic block copolymers having oppositely charged or chargeable terminal groups, and methods of making and using the same, are disclosed. The zwitterionic block copolymers can undergo microphase separation.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: August 7, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Eugene P. Marsh
  • Patent number: 8226772
    Abstract: Some embodiments include methods of removing particles from over surfaces of semiconductor substrates. Liquid may be flowed across the surfaces and the particles. While the liquid is flowing, electrophoresis and/or electroosmosis may be utilized to enhance transport of the particles from the surfaces and into the liquid. In some embodiments, temperature, pH and/or ionic strength within the liquid may be altered to assist in the removal of the particles from over the surfaces of the substrates.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: July 24, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Neil Joseph Greeley, Dan Millward, Wayne Huang
  • Patent number: 8173034
    Abstract: Some embodiments include methods of utilizing block copolymer to form patterns between weirs. The methods may utilize liners along surfaces of the weirs to compensate for partial-width segments of the patterns in regions adjacent the weirs. Some embodiments include methods in which spaced apart structures are formed over a substrate, and outer surfaces of the structures are coated with a thickness of coating. Diblock copolymer is used to form a pattern across spaces between the structures. The diblock copolymer includes a pair of block constituents that have different affinities for the coating relative to one another. The pattern includes alternating segments, with the segments adjacent to the coating being shorter than the segments that are not adjacent to the coating. The coating thickness is about the amount by which the segments adjacent to the coating are shorter than the segments that are not adjacent to the coating.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: May 8, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Stephen J. Kramer, Gurtej S. Sandhu
  • Publication number: 20120077127
    Abstract: Some embodiments include methods of forming patterns in which a block copolymer-containing composition is formed over a substrate, and is then patterned to form a first mask. The block copolymer of the composition is subsequently induced into forming a repeating pattern within the first mask. Portions of the repeating pattern are then removed to form a second mask from the first mask. The patterning of the block copolymer-containing composition may utilize photolithography. Alternatively, the substrate may have regions which wet differently relative to one another with respect to the block copolymer-containing composition, and the patterning of the first mask may utilize such differences in wetting in forming the first mask.
    Type: Application
    Filed: December 1, 2011
    Publication date: March 29, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Scott Sills, Dan Millward
  • Publication number: 20120052416
    Abstract: A method of mitigating asymmetric lens heating in photolithographically patterning a photo-imagable material using a reticle includes determining where first hot spot locations are expected to occur on a lens when using a reticle to pattern a photo-imagable material. The reticle is then fabricated to include non-printing features within a non-printing region of the reticle which generate additional hot spot locations on the lens when using the reticle to pattern the photo-imagable material. Other implementations are contemplated, including reticles which may be independent of method of use or fabrication.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 1, 2012
    Inventors: Scott L. Light, Dan Millward, Yuan He, Kaveri Jain, Lijing Gou, Zishu Zhang, Anton de Viiliers, Michael Hyatt, Jianming Zhou
  • Publication number: 20120045891
    Abstract: Some embodiments include methods of forming patterns in substrates by utilizing block copolymer assemblies as patterning materials. A block copolymer assembly may be formed over a substrate, with the assembly having first and second subunits arranged in a pattern of two or more domains. Metal may be selectively coupled to the first subunits relative to the second subunits to form a pattern of metal-containing regions and non-metal-containing regions. At least some of the block copolymer may be removed to form a patterned mask corresponding to the metal-containing regions. A pattern defined by the patterned mask may be transferred into the substrate with one or more etches. In some embodiments, the patterning may be utilized to form integrated circuitry, such as, for example, gatelines.
    Type: Application
    Filed: November 3, 2011
    Publication date: February 23, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Dan Millward, Scott Sills
  • Publication number: 20120038895
    Abstract: Photolithographic apparatus and methods are disclosed. One such apparatus includes an optical path configured to provide a first diffraction pattern in a portion of an optical system and to provide a second diffraction pattern to the portion of the optical system after providing the first diffraction pattern. Meanwhile, one such method includes providing a first diffraction pattern onto a portion of an optical system, wherein a semiconductor article is imaged using the first diffraction pattern. A second diffraction pattern is also provided onto the portion of the optical system, but the second diffraction pattern is not used to image the semiconductor article.
    Type: Application
    Filed: August 16, 2010
    Publication date: February 16, 2012
    Inventors: Yuan He, Kaveri Jain, Lijing Gou, Zishu Zhang, Anton deVilliers, Michael Hyatt, Jianming Zhou, Scott Light, Dan Millward
  • Publication number: 20120015486
    Abstract: Some embodiments include methods of forming patterns. A semiconductor substrate is formed to comprise an electrically insulative material over a set of electrically conductive structures. An interconnect region is defined across the electrically conductive structures, and regions on opposing sides of the interconnect region are defined as secondary regions. A two-dimensional array of features is formed over the electrically insulative material. The two-dimensional array extends across the interconnect region and across the secondary regions. A pattern of the two-dimensional array is transferred through the electrically insulative material of the interconnect region to form contact openings that extend through the electrically insulative material and to the electrically conductive structures, and no portions of the two-dimensional array of the secondary regions is transferred into the electrically insulative material.
    Type: Application
    Filed: July 14, 2010
    Publication date: January 19, 2012
    Inventors: Dan Millward, Kaveri Jain, Zishu Zhang, Lijing Gou, Anton de Villiers, Jianming Zhou, Yuan He, Michael Hyatt, Scott L. Light
  • Patent number: 8088551
    Abstract: Some embodiments include methods of forming patterns in which a block copolymer-containing composition is formed over a substrate, and is then patterned to form a first mask. The block copolymer of the composition is subsequently induced into forming a repeating pattern within the first mask. Portions of the repeating pattern are then removed to form a second mask from the first mask. The patterning of the block copolymer-containing composition may utilize photolithography. Alternatively, the substrate may have regions which wet differently relative to one another with respect to the block copolymer-containing composition, and the patterning of the first mask may utilize such differences in wetting in forming the first mask.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: January 3, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Scott Sills, Dan Millward
  • Patent number: 8084345
    Abstract: Some embodiments include methods of forming dispersions of nanoparticles. The nanoparticles are incorporated into first coordination complexes in which the nanoparticles are coordinated to hydrophobic ligands, and the first coordination complexes are dispersed within a non-polar solvent. While the first coordination complexes are within the non-polar solvent, the ligands are reacted with one or more reactants to convert the first coordination complexes into second coordination complexes that contain hydrophilic ligands. The second coordination complexes are then extracted from the non-polar solvent into water, to form a mixture of the second coordination complexes and the water. In some embodiments, the mixture may be dispersed across a semiconductor substrate to form a uniform distribution of the nanoparticles across the substrate. In some embodiments, the nanoparticles may then be incorporated into flash memory devices as charge-trapping centers.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: December 27, 2011
    Assignee: Micron Technology, Inc.
    Inventor: Dan Millward
  • Publication number: 20110301383
    Abstract: The present invention provides metal-containing compounds that include at least one ?-diketiminate ligand, and methods of making and using the same. In certain embodiments, the metal-containing compounds include at least one ?-diketiminate ligand with at least one fluorine-containing organic group as a substituent. In other certain embodiments, the metal-containing compounds include at least one ?-diketiminate ligand with at least one aliphatic group as a substituent selected to have greater degrees of freedom than the corresponding substituent in the ?-diketiminate ligands of certain metal-containing compounds known in the art. The compounds can be used to deposit metal-containing layers using vapor deposition methods. Vapor deposition systems including the compounds are also provided. Sources for ?-diketiminate ligands are also provided.
    Type: Application
    Filed: August 15, 2011
    Publication date: December 8, 2011
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Dan Millward, Timothy A. Quick
  • Patent number: 8071467
    Abstract: Some embodiments include methods of forming patterns in substrates by utilizing block copolymer assemblies as patterning materials. A block copolymer assembly may be formed over a substrate, with the assembly having first and second subunits arranged in a pattern of two or more domains. Metal may be selectively coupled to the first subunits relative to the second subunits to form a pattern of metal-containing regions and non-metal-containing regions. At least some of the block copolymer may be removed to form a patterned mask corresponding to the metal-containing regions. A pattern defined by the patterned mask may be transferred into the substrate with one or more etches. In some embodiments, the patterning may be utilized to form integrated circuitry, such as, for example, gatelines.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: December 6, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Scott Sills
  • Publication number: 20110272381
    Abstract: Some embodiments include methods of forming patterns. A block copolymer film may be formed over a substrate, with the block copolymer having an intrinsic glass transition temperature (Tg,0) and a degradation temperature (Td). A temperature window may be defined to correspond to temperatures (T) within the range of Tg,0?T?Td. While the block copolymer is in the upper half of the temperature window, solvent may be dispersed into the block copolymer to a process volume fraction that induces self-assembly of the block copolymer into a pattern. A defect specification may be defined, and the process volume fraction of solvent may be at level that achieves self-assembly within the defect specification. In some embodiments, the solvent may be removed from within the block copolymer while maintaining the defect specification.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 10, 2011
    Inventors: Dan Millward, Scott Sills
  • Publication number: 20110250745
    Abstract: Some embodiments include methods of forming patterns in substrates by utilizing block copolymer assemblies as patterning materials. A block copolymer assembly may be formed over a substrate, with the assembly having first and second subunits arranged in a pattern of two or more domains. Metal may be selectively coupled to the first subunits relative to the second subunits to form a pattern of metal-containing regions and non-metal-containing regions. At least some of the block copolymer may be removed to form a patterned mask corresponding to the metal-containing regions. A pattern defined by the patterned mask may be transferred into the substrate with one or more etches. In some embodiments, the patterning may be utilized to form integrated circuitry, such as, for example, gatelines.
    Type: Application
    Filed: April 7, 2010
    Publication date: October 13, 2011
    Inventors: Dan Millward, Scott Sills
  • Patent number: 8022147
    Abstract: Zwitterionic block copolymers having oppositely charged or chargeable terminal groups, and methods of making and using the same, are disclosed. The zwitterionic block copolymers can undergo microphase separation.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: September 20, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Eugene P. Marsh
  • Patent number: 8017184
    Abstract: The present invention provides metal-containing compounds that include at least one ?-diketiminate ligand, and methods of making and using the same. In certain embodiments, the metal-containing compounds include at least one ?-diketiminate ligand with at least one fluorine-containing organic group as substituent. In other certain embodiments, the metal-containing compounds include at least one ?-diketiminate ligand with at least one aliphatic group as a substituent selected to have greater degrees of freedom than the corresponding substituent in the ?-diketiminate ligands of certain metal-containing compounds known in the art. The compounds can be used to deposit metal-containing layers using vapor deposition methods. Vapor deposition systems including the compounds are also provided. Sources for ?-diketiminate ligands are also provided.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: September 13, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Timothy A. Quick
  • Publication number: 20110071316
    Abstract: The present invention provides metal-containing compounds that include at least one ?-diketiminate ligand, and methods of making and using the same. In some embodiments, the metal-containing compounds are homoleptic complexes that include unsymmetrical ?-diketiminate ligands. In other embodiments, the metal-containing compounds are heteroleptic complexes including at least one ?-diketiminate ligand. The compounds can be used to deposit metal-containing layers using vapor deposition methods. Vapor deposition systems including the compounds are also provided. Sources for ?-diketiminate ligands are also provided.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 24, 2011
    Applicant: Micron Technology, Inc.
    Inventors: Dan Millward, Stefan Uhlenbrock, Timothy A. Quick
  • Patent number: 7858523
    Abstract: The present invention provides metal-containing compounds that include at least one ?-diketiminate ligand, and methods of making and using the same. In some embodiments, the metal-containing compounds are homoleptic complexes that include unsymmetrical ?-diketiminate ligands. In other embodiments, the metal-containing compounds are heteroleptic complexes including at least one ?-diketiminate ligand. The compounds can be used to deposit metal-containing layers using vapor deposition methods. Vapor deposition systems including the compounds are also provided. Sources for ?-diketiminate ligands are also provided.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: December 28, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Stefan Uhlenbrock, Timothy A. Quick
  • Publication number: 20100323096
    Abstract: Some embodiments include methods of forming patterns utilizing copolymer. A main body of copolymer may be formed across a substrate, and self-assembly of the copolymer may be induced to form a pattern of structures across the substrate. A uniform thickness throughout the main body of the copolymer may be maintained during the inducement of the self-assembly. In some embodiments, the uniform thickness may be maintained through utilization of a wall surrounding the main body of copolymer to impede dispersal of the copolymer from the main body. In some embodiments, the uniform thickness may be maintained through utilization of a volume of copolymer in fluid communication with the main body of copolymer.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 23, 2010
    Inventors: Scott Sills, Dan Millward