Patents by Inventor Holger BERA

Holger BERA 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: 20210371985
    Abstract: An electroless nickel plating solution, including a source of nickel ions, a source of molybdenum ions, a source of tungsten ions, a source of hypophosphite ions at least one complexing agent, at least one organic sulphur containing compound in a concentration of 0.38-38.00 ?mol/L, and at least one amino acid in a concentration of 0.67-40.13 mmol/L, and a method for electroless plating of a nickel alloy layer on a substrate, a nickel alloy layer, and an article comprising the a nickel alloy layer.
    Type: Application
    Filed: November 5, 2019
    Publication date: December 2, 2021
    Inventors: Holger BERA, Christian SCHWARZ, Andreas SCHULZE
  • Patent number: 10513780
    Abstract: The invention relates to an aqueous plating bath composition and a method for depositing a palladium layer by electroless plating onto a substrate. The aqueous plating bath composition according to the invention comprises a source for palladium ions, a reducing agent for palladium ions and an unsaturated compound. The aqueous plating bath composition according to the invention has an improved stability against undesired decomposition due to the unsaturated compounds while keeping the deposition rate for palladium at the desired satisfying value. The aqueous plating bath composition has also a prolonged life time. The unsaturated compounds of the invention allow for adjusting the deposition rate to a satisfying range over the bath life time and for electrolessly depositing palladium layers at lower temperatures.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 24, 2019
    Assignee: Atotech Deutschland GmbH
    Inventors: Andreas Walter, Christof Suchentrunk, Thomas Beck, Gerhard Steinberger, Holger Bera, Heiko Brunner, Bernd Froese
  • Publication number: 20180340261
    Abstract: The invention relates to an aqueous plating bath composition and a method for depositing a palladium layer by electroless plating onto a substrate. The aqueous plating bath composition according to the invention comprises a source for palladium ions, a reducing agent for palladium ions and a cyanide group containing aromatic compound. The aqueous plating bath composition according to the invention has an improved stability against undesired decomposition due to the cyanide group containing aromatic compounds while keeping the deposition rate for palladium at the desired satisfying value. The aqueous plating bath composition has also a prolonged life time. The cyanide group containing aromatic compounds of the invention allow for adjusting the deposition rate to a satisfying range over the bath life time and for electrolessly depositing palladium layers at lower temperatures.
    Type: Application
    Filed: November 28, 2016
    Publication date: November 29, 2018
    Inventors: Andreas WALTER, Christof SUCHENTRUNK, Thomas BECK, Gerhard STEINBERGER, Holger BERA, Heiko BRUNNER, Sven RÜCKBROD
  • Publication number: 20180340260
    Abstract: The invention relates to an aqueous plating bath composition and a method for depositing a palladium layer by electroless plating onto a substrate. The aqueous plating bath composition according to the invention comprises a source for palladium ions, a reducing agent for palladium ions and an unsaturated compound. The aqueous plating bath composition according to the invention has an improved stability against undesired decomposition due to the unsaturated compounds while keeping the deposition rate for palladium at the desired satisfying value. The aqueous plating bath composition has also a prolonged life time. The unsaturated compounds of the invention allow for adjusting the deposition rate to a satisfying range over the bath life time and for electrolessly depositing palladium layers at lower temperatures.
    Type: Application
    Filed: November 28, 2016
    Publication date: November 29, 2018
    Inventors: Andreas WALTER, Christof SUCHENTRUNK, Thomas BECK, Gerhard STEINBERGER, Holger BERA, Heiko BRUNNER, Bernd FROESE
  • Publication number: 20170335462
    Abstract: The present invention relates to aqueous plating bath compositions and methods for deposition of nickel and nickel alloys utilizing mixtures of stabilizing agents comprising ions of group IIIA metals and iodine containing, inorganic compounds in order to enhance bath stability.
    Type: Application
    Filed: November 17, 2015
    Publication date: November 23, 2017
    Applicant: Atotech Deutschland GmbH
    Inventors: Jan PICALEK, Holger BERA, Shakeel AKHTAR, Iulia BEJAN, Jennifer PINNAU
  • Patent number: 9175399
    Abstract: The present invention relates to aqueous plating bath compositions for deposition of nickel and nickel alloys utilizing novel stabilizing agents possessing a carbon-carbon triple bond and a functional group to enhance the bath performance.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 3, 2015
    Assignee: Atotech Deutschland GmbH
    Inventors: Heiko Brunner, Jan Picalek, Iulia Bejan, Carsten Krause, Holger Bera, Sven Rückbrod
  • Publication number: 20150110965
    Abstract: The present invention relates to aqueous plating bath compositions for deposition of nickel and nickel alloys utilizing novel stabilising agents possessing a carbon-carbon triple bond and a functional group to enhance the bath performance.
    Type: Application
    Filed: May 31, 2013
    Publication date: April 23, 2015
    Applicant: Atotech Deutschland GmbH
    Inventors: Heiko Brunner, Jan Picalek, Iulia Bejan, Carsten Krause, Holger Bera, Sven Rückbrod
  • Patent number: 8961670
    Abstract: The present invention relates to aqueous, alkaline plating bath compositions for electroless deposition of ternary and quaternary cobalt alloys Co-M-P, Co-M-B and Co-M-B—P, wherein M is selected from the group consisting of Mn, Zr, Re, Mo, Ta and W which comprise a propargyl derivative as the stabilizing agent. The cobalt alloy layers derived there from are useful as barrier layers and cap layers in electronic devices such as semiconducting devices, printed circuit boards, and IC substrates.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: February 24, 2015
    Assignee: Atotech Deutschland GmbH
    Inventors: Holger Bera, Heiko Brunner
  • Publication number: 20140377471
    Abstract: The present invention relates to aqueous, alkaline plating bath compositions for electroless deposition of ternary and quaternary cobalt alloys Co—M—P, Co—M—B and Co—M—B—P, wherein M is selected from the group consisting of Mn, Zr, Re, Mo, Ta and W which comprise a propargyl derivative as the stabilising agent. The cobalt alloy layers derived there from are useful as barrier layers and cap layers in electronic devices such as semiconducting devices, printed circuit boards, and IC substrates.
    Type: Application
    Filed: January 9, 2013
    Publication date: December 25, 2014
    Inventors: Holger Bera, Heiko Brunner
  • Publication number: 20140150689
    Abstract: The present invention relates to an aqueous plating bath composition for depositing a nickel phosphorous alloy having a phosphorous content in the range of 5 to 12 wt. %. The plating bath comprises a sulfur-containing organic stabilizing agent.
    Type: Application
    Filed: July 4, 2012
    Publication date: June 5, 2014
    Applicant: ATOTECH DEUTSCHLAND GMBH
    Inventors: Boris Alexander JANSSEN, Holger BERA, Sebastian WEISSBROD, Britta SCHAFSTELLER