Patents by Inventor Jurgen Scharf

Jurgen Scharf 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: 11236430
    Abstract: A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core itself consists of: (a) pure silver consisting of (a1) silver in an amount in the range of from 99.99 to 100 wt.-% and (a2) further components in a total amount of from 0 to 100 wt.-ppm or (b) doped silver consisting of (b1) silver in an amount in the range of from >99.49 to 99.997 wt.-%, (b2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm and (b3) further components in a total amount of from 0 to 100 wt.-ppm, or (c) a silver alloy consisting of (c1) silver in an amount in the range of from 89.99 to 99.5 wt.-%, (c2) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: February 1, 2022
    Assignee: HERAEUS MATERIALS SINGAPORE PTE. LTD.
    Inventors: Yee Weon Lim, Xi Zhang, Senthil Kumar Balasubramanian, Suat Teng Tan, Jin Zhi Liao, Dan Su, Chee Wei Tok, Murali Sarangapani, Jurgen Scharf
  • Publication number: 20210222313
    Abstract: A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core itself consists of: (a) pure silver consisting of (a1) silver in an amount in the range of from 99.99 to 100 wt.-% and (a2) further components in a total amount of from 0 to 100 wt.-ppm or (b) doped silver consisting of (b1) silver in an amount in the range of from >99.49 to 99.997 wt.-%, (b2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to <5000 wt.-ppm and (b3) further components in a total amount of from 0 to 100 wt.-ppm, or (c) a silver alloy consisting of (c1) silver in an amount in the range of from 89.99 to 99.5 wt.-%, (c2) at least one alloying element selected from the group consisting of nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount in the range of from 0.5 to 10 wt.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 22, 2021
    Inventors: Yee Weon Lim, Xi Zhang, Senthil Kumar Balasubramanian, Suat Teng Tan, Jin Zhi Liao, Dan Su, Chee Wei Tok, Murali Sarangapani, Jurgen Scharf
  • Publication number: 20160288272
    Abstract: A bonding wire according to the invention contains a core having a surface and a coating layer which is at least partially superimposed over the surface of the core. The core contains a core main component selected from copper and silver and the coating layer contains a coating component selected from palladium, platinum, gold, rhodium, ruthenium, osmium and iridium. The coating layer is applied on the surface of the core by depositing a film of a liquid containing a coating component precursor onto a wire core precursor and heating the deposited film to decompose the coating component precursor into a metallic phase.
    Type: Application
    Filed: November 21, 2013
    Publication date: October 6, 2016
    Inventors: Annette LUKAS, Patrick WENZEL, Michael DEUSCHLE, Eugen MILKE, Sven THOMAS, Jürgen SCHARF
  • Publication number: 20150360316
    Abstract: The invention is related to a bonding wire which contains a core having a surface and a coating layer which is at least partially superimposed over the surface of the core. The core contains a core main component selected from copper and silver. The coating layer contains a coating component selected from palladium, platinum, gold, rhodium, ruthenium, osmium and iridium in an amount of at least 10% and further contains the core main component in an amount of at least 10%.
    Type: Application
    Filed: December 18, 2013
    Publication date: December 17, 2015
    Applicant: HERAEUS DEUTSCHLAND GMBH & CO. KG
    Inventors: Eugen MILKE, Jürgen SCHARF