Patents by Inventor Chao-Yu WANG

Chao-Yu WANG 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: 20230295537
    Abstract: The invention provides compositions useful in post-CMP cleaning operations, particularly those substrates which contain exposed copper surfaces. The compositions of the invention provide excellent cleaning of such substrates while showing fewer defects from silica and organic materials present at the surface of the substrate. Also provided is a method for cleaning a microelectronic device substrate using such compositions and a kit comprising, in two or more containers, the components of the compositions.
    Type: Application
    Filed: March 3, 2023
    Publication date: September 21, 2023
    Inventors: Jun Liu, Chao-Yu Wang, Daniela White, Michael L. White
  • Patent number: 11149235
    Abstract: A cleaning composition and process for cleaning an in-process microelectronic device substrate, e.g., by post-chemical mechanical polishing (CMP) cleaning, to remove residue from a surface thereof, wherein the cleaning composition may be especially effective for cleaning a substrate surface that includes exposed metal such as cobalt, copper, or both, along with dielectric or low k dielectric material, and wherein the cleaning composition includes corrosion inhibitor to inhibit corrosion of the exposed metal.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: October 19, 2021
    Assignee: Entegris, Inc.
    Inventors: Daniela White, Elizabeth Thomas, Jun Liu, Michael White, Chao-Yu Wang, Donald Frye
  • Publication number: 20200024554
    Abstract: A cleaning composition and process for cleaning an in-process microelectronic device substrate, e.g., by post-chemical mechanical polishing (CMP) cleaning, to remove residue from a surface thereof, wherein the cleaning composition may be especially effective for cleaning a substrate surface that includes exposed metal such as cobalt, copper, or both, along with dielectric or low k dielectric material, and wherein the cleaning composition includes corrosion inhibitor to inhibit corrosion of the exposed metal.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 23, 2020
    Inventors: Daniela WHITE, Elizabeth THOMAS, Jun LIU, Michael WHITE, Chao-Yu WANG, Donald FRYE
  • Patent number: 10351809
    Abstract: A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions are substantially devoid of alkali hydroxides, alkaline earth metal hydroxides, and tetramethylammonium hydroxide. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: July 16, 2019
    Assignee: Entegris, Inc.
    Inventors: Elizabeth Thomas, Donald Frye, Jun Liu, Michael White, Danela White, Chao-Yu Wang
  • Publication number: 20180037852
    Abstract: A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions are substantially devoid of alkali hydroxides, alkaline earth metal hydroxides, and tetramethylammonium hydroxide. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Application
    Filed: January 5, 2016
    Publication date: February 8, 2018
    Inventors: Elizabeth THOMAS, Donald FRYE, Jun LIU, Michael WHITE, Danela WHITE, Chao-Yu WANG