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: 11139159
    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: October 19, 2018
    Date of Patent: October 5, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Joseph Neil Greeley, Dan Millward, Wayne Huang
  • Publication number: 20190047025
    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: Application
    Filed: October 19, 2018
    Publication date: February 14, 2019
    Applicant: Micron Technology, Inc.
    Inventors: Joseph Neil Greeley, Dan Millward, Wayne Huang
  • Patent number: 10137481
    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 26, 2015
    Date of Patent: November 27, 2018
    Assignee: Micron Technology, Inc.
    Inventors: Joseph Neil Greeley, Dan Millward, Wayne Huang
  • Patent number: 9418848
    Abstract: Some embodiments include methods of forming patterns. A first mask is formed over a material. The first mask has features extending therein and defines a first pattern. The first pattern has a first level of uniformity across a distribution of the features. A brush layer is formed across the first mask and within the features to narrow the features and create a second mask from the first mask. The second mask has a second level of uniformity across the narrowed features which is greater than the first level of uniformity. A pattern is transferred from the second mask into the material.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 16, 2016
    Assignees: Micron Technology, Inc., Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: William R. Brown, Adam Olson, Kaveri Jain, Ho Seop Eom, Xue Gloria Chen, Nik Mirin, Dan Millward, Peter Trefonas, III, Phillip Dene Hustad, Jong Keun Park, Christopher Nam Lee
  • Publication number: 20160027638
    Abstract: Some embodiments include methods of forming patterns. A first mask is formed over a material. The first mask has features extending therein and defines a first pattern. The first pattern has a first level of uniformity across a distribution of the features. A brush layer is formed across the first mask and within the features to narrow the features and create a second mask from the first mask. The second mask has a second level of uniformity across the narrowed features which is greater than the first level of uniformity. A pattern is transferred from the second mask into the material.
    Type: Application
    Filed: October 1, 2015
    Publication date: January 28, 2016
    Inventors: William R. Brown, Adam Olson, Kaveri Jain, Ho Seop Eom, Xue Gloria Chen, Nik Mirin, Dan Millward, Peter Trefonas, III, Phillip Dene Hustad, Jong Keun Park, Christopher Nam Lee
  • Patent number: 9235134
    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: Grant
    Filed: August 16, 2010
    Date of Patent: January 12, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Yuan He, Kaveri Jain, Lijing Gou, Zishu Zhang, Anton deVilliers, Michael Hyatt, Jianming Zhou, Scott Light, Dan Millward
  • Patent number: 9234273
    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: November 24, 2010
    Date of Patent: January 12, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Stefan Uhlenbrock, Timothy A. Quick
  • Patent number: 9184058
    Abstract: Some embodiments include methods of forming patterns. A first mask is formed over a material. The first mask has features extending therein and defines a first pattern. The first pattern has a first level of uniformity across a distribution of the features. A brush layer is formed across the first mask and within the features to narrow the features and create a second mask from the first mask. The second mask has a second level of uniformity across the narrowed features which is greater than the first level of uniformity. A pattern is transferred from the second mask into the material.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 10, 2015
    Assignee: Micron Technology, Inc.
    Inventors: William R. Brown, Adam Olson, Kaveri Jain, Ho Seop Eom, Xue Gloria Chen, Nik Mirin, Dan Millward, Peter Trefonas, III, Phillip Dene Hustad, Jong Keun Park, Christopher Nam Lee
  • Patent number: 9177794
    Abstract: A method of patterning a substrate includes forming spaced first features over a substrate. Individual of the spaced first features include sidewall portions of different composition than material that is laterally between the sidewall portions. A mixture of immiscible materials is provided between the spaced first features. At least two of the immiscible materials are laterally separated along at least one elevation between adjacent spaced first features. The laterally separating forms a laterally intermediate region including one of the immiscible materials between two laterally outer regions including another of the immiscible materials along the one elevation. The laterally outer regions are removed and material of the spaced first features is removed between the sidewall portions to form spaced second features over the substrate. Other embodiments are disclosed.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: November 3, 2015
    Assignee: Micron Technology, Inc.
    Inventor: Dan Millward
  • Patent number: 9096730
    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: Grant
    Filed: March 20, 2014
    Date of Patent: August 4, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Scott E. Sills
  • Publication number: 20150179467
    Abstract: Some embodiments include methods of forming patterns. A first mask is formed over a material. The first mask has features extending therein and defines a first pattern. The first pattern has a first level of uniformity across a distribution of the features. A brush layer is formed across the first mask and within the features to narrow the features and create a second mask from the first mask. The second mask has a second level of uniformity across the narrowed features which is greater than the first level of uniformity. A pattern is transferred from the second mask into the material.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Applicants: Micron Technology, Inc., Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
    Inventors: William R. Brown, Adam Olson, Kaveri Jain, Ho Seop Eom, Xue Gloria Chen, Nik Mirin, Dan Millward, Peter Trefonas, III, Phillip Dene Hustad, Jong Keun Park, Christopher Nam Lee
  • Publication number: 20150128992
    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: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Inventors: Joseph Neil Greeley, Dan Millward, Wayne Huang
  • Patent number: 8974678
    Abstract: Block copolymers can be self-assembled and used in methods as described herein for sub-lithographic patterning, for example. The block copolymers can be diblock copolymers, triblock copolymers, multiblock copolymers, or combinations thereof. Such methods can be useful for making devices that include, for example, sub-lithographic conductive lines.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: March 10, 2015
    Assignee: Micron Technology, Inc.
    Inventor: Dan Millward
  • Patent number: 8940102
    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: June 27, 2012
    Date of Patent: January 27, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Neil Joseph Greeley, Dan Millward, Wayne Huang
  • Publication number: 20150015860
    Abstract: A method of mitigating asymmetric lens heating in photolithographically patterning a photo-imageable 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-imageable 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-imageable material. Other implementations are contemplated, including reticles which may be independent of method of use or fabrication.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Inventors: Scott L. Light, Dan Millward, Yuan He, Kaveri Jain, Lijing Gou, Zishu Zhang, Anton J. deVilliers, Michael D. Hyatt, Jianming Zhou
  • Publication number: 20140349486
    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: August 8, 2014
    Publication date: November 27, 2014
    Inventors: Scott E. Sills, Dan Millward
  • Patent number: 8883372
    Abstract: A reticle with a composite polarizer includes: a transparent substrate; a patterned layer disposed on said transparent substrate; and a polarizing filter disposed on said transparent substrate, wherein said transparent substrate is substantially transparent with respect to illumination light, said patterned layer is partially opaque with respect to said illumination light, and said polarizing filter is capable of selectively polarizing said illumination light.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: November 11, 2014
    Assignee: Nanya Technology Corp.
    Inventors: Scott Light, Dan Millward, Anton Devilliers, Yuan He, Michael Hyatt, Lijing Gou, Kaveri Jain, Zishu Zhang, Jianming Zhou
  • Patent number: 8853311
    Abstract: In one embodiment, a block copolymer-containing composition includes PS-b-PXVP and a lithium salt, where “X” is 2 or 4. All lithium salt is present in the composition at no greater than 1 ppm by weight. In one embodiment, a homogenous block copolymer-including comprising has PS-b-PXVP present in the composition at no less than 99.99998% by weight, where “X” is 2 or 4. Methods of forming such compositions are disclosed.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: October 7, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Scott Sills
  • Patent number: 8845908
    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: Grant
    Filed: August 24, 2010
    Date of Patent: September 30, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Scott L. Light, Dan Millward, Yuan He, Kaveri Jain, Lijing Gou, Zishu Zhang, Anton deVilliers, Michael Hyatt, Jianming Zhou
  • Patent number: 8834956
    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: Grant
    Filed: June 22, 2009
    Date of Patent: September 16, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Scott Sills, Dan Millward