Patents by Inventor Ly M. Chew

Ly M. Chew 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).

  • Silver sintering preparation and the use thereof for the connecting of electronic components
    Patent number: 11938543
    Abstract: A silver sintering preparation in the form of a silver sintering paste comprising 70 to 95 wt.-% of coated silver particles (A) and 5 to 30 wt.-% of organic solvent (B) or in the form of a silver sintering preform comprising 74.5 to 100 wt.-% of coated silver particles (A) and 0 to 0.5 wt.-% of organic solvent (B), wherein the coating of the coated silver particles (A) comprises silver acetylacetonate (silver 2,4-pentanedionate) and/or at least one silver salt of the formula CnH2n+1COOAg with n being an integer in the range of 7 to 10, and wherein the at least one silver salt is thermally decomposable at >160° C.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: March 26, 2024
    Assignee: HERAEUS DEUTSCHLAND GMBH & CO. KG
    Inventors: Ly M. Chew, Gregory Berube, Seigi Suh
  • SILVER SINTERING PREPARATION AND THE USE THEREOF FOR THE CONNECTING OF ELECTRONIC COMPONENTS
    Publication number: 20220324021
    Abstract: A silver sintering preparation in the form of a silver sintering paste comprising 70 to 95 wt.-% of coated silver particles (A) and 5 to 30 wt.-% of organic solvent (B) or in the form of a silver sintering preform comprising 74.5 to 100 wt.-% of coated silver particles (A) and 0 to 0.5 wt.-% of organic solvent (B), wherein the coating of the coated silver particles (A) comprises silver acetylacetonate (silver 2,4-pentanedionate) and/or at least one silver salt of the formula CnH2n+1COOAg with n being an integer in the range of 7 to 10, and wherein the at least one silver salt is thermally decomposable at >160° C.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 13, 2022
    Inventors: Ly M. Chew, Gregory Berube, Seigi Suh