Patents by Inventor Daniel Wolde-Giorgis

Daniel Wolde-Giorgis 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: 9233436
    Abstract: An assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is situated in a recess of the substrate that accommodates at least some areas of the component. A method for producing an assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is brought into a recess of the substrate that accommodates at least some areas of the component.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 12, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Daniel Wolde-Giorgis, Thomas Kalich
  • Publication number: 20140001244
    Abstract: An assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is situated in a recess of the substrate that accommodates at least some areas of the component. A method for producing an assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is brought into a recess of the substrate that accommodates at least some areas of the component.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 2, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Daniel WOLDE-GIORGIS, Thomas KALICH
  • Publication number: 20130292168
    Abstract: The invention relates to a starter material for a sintering compound, said starter material comprising particles which at least proportionally contain an organic metal compound and/or a precious metal oxide, the organic metal compound and/or the precious metal oxide being converted during heat treatment of the starter material into the elemental metal and/or precious metal. The invention is characterized in that the particles have a coating containing a reducing agent by means of which the organic metal compound and/or precious metal oxide is reduced to the elemental metal and/or precious metal at a temperature below the sintering temperature of the elemental metal and/or precious metal.
    Type: Application
    Filed: September 23, 2011
    Publication date: November 7, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Daniel Wolde-Giorgis, Andrea Feiock
  • Patent number: 8552306
    Abstract: An assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is situated in a recess of the substrate that accommodates at least some areas of the component. A method for producing an assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is brought into a recess of the substrate that accommodates at least some areas of the component.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: October 8, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Daniel Wolde-Giorgis, Thomas Kalich
  • Publication number: 20130251447
    Abstract: The present invention relates to a starting material for producing a sintered connection. In order to avoid the formation of cracks in the joining partners in the case of fluctuating thermal loading, the starting material comprises second particles 20 in addition to metallic first particles 10, wherein the second particles 20 at least proportionately contain a particle core material which has a coefficient of thermal linear expansion ? at 20° C. which is less than the coefficient of thermal linear expansion ? at 20° C. of the metal or of the metals of the first particles in metallic form, and wherein the D50 value of the second particles 20 is greater than or equal to half the D50 value of the first particles 10 and less than or equal to two times the D50 value of the first particles 10. In addition, the present invention relates to a corresponding sintered connection 100?, to an electronic circuit 70 and also to a process for forming a thermally and/or electrically conductive sintered connection.
    Type: Application
    Filed: March 29, 2011
    Publication date: September 26, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Thomas Kalich, Daniel Wolde-Giorgis, Andrea Feiock, Robert Kolb
  • Publication number: 20130216847
    Abstract: The invention relates to a starter material for a sintering compound, said starter material comprising first particles of at least one metal having a first coating which is applied to the first particles and consists of an organic material, and second particles which contain an organic metal compound and/or a precious metal oxide, the organic metal compound and/or the precious metal oxide being converted during heat treatment of the starter material into the fundamental elemental metal and/or precious metal. The invention is characterized in that the second particles have a core of at least one metal and a second coating which is applied to the core and contains the organic metal compound and/or precious metal oxide. Furthermore, the first coating contains a reducing agent by means of which the organic metal compound and/or the precious metal oxide is/are reduced to the elemental metal and/or precious metal at a temperature below the sintering temperature of the elemental metal and/or precious metal.
    Type: Application
    Filed: September 23, 2011
    Publication date: August 22, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Daniel Wolde-Giorgis, Andrea Feiock
  • Publication number: 20130216848
    Abstract: The present invention relates to a starting material for producing a sintered join. In order to avoid the formation of cracks in the case of fluctuating thermal loading, the starting material comprises second particles 20, in addition to metallic first particles 10, which at least proportionately contain elemental silicon and/or silicon dioxide. In addition, the present invention relates to the use of elemental silicon and/or silicon dioxide for reducing the coefficient of thermal linear expansion ? of a starting material 100 of a sintered join 100? or of a sintered join 100?, in particular in a sintered paste, a sintered powder or a sintered material preform. Furthermore, the present invention relates to sintered joins 100?, to electronic circuits 70 and also to processes for forming a thermally and/or electrically conductive sintered join.
    Type: Application
    Filed: March 29, 2011
    Publication date: August 22, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Thomas Kalich, Daniel Wolde-Giorgis, Andrea Feiock, Robert Kolb
  • Publication number: 20120028025
    Abstract: The invention relates to an electrical and electronic composite component (1), comprising a first joining partner (2) and at least one second joining partner (3). The invention provides for an openly porous sintered shaped part (6, 7) to be accommodated between the first and the second joining partners (2, 3), said sintered shaped part being sintered by sintering by means of sintering paste with the first and the second joining partners (2, 3). The invention furthermore relates to a production method.
    Type: Application
    Filed: December 18, 2009
    Publication date: February 2, 2012
    Applicants: SIEMENS AKTIENGESELLSCHAFT, ROBERT BOSCH GMBH
    Inventors: Daniel Wolde-Giorgis, Erik Sueske, Martin Rittner, Erik Peter, Herbert Schwarzbauer, Michael Guenther
  • Publication number: 20100252312
    Abstract: An assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is situated in a recess of the substrate that accommodates at least some areas of the component. A method for producing an assembly having a substrate and at least one component fastened thereon by sintering using a sintering agent, in particular sintering paste. The sintering agent is brought into a recess of the substrate that accommodates at least some areas of the component.
    Type: Application
    Filed: July 4, 2008
    Publication date: October 7, 2010
    Inventors: Daniel Wolde-Giorgis, Thomas Kalich