Patents by Inventor David Hajas

David Hajas 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: 9949385
    Abstract: A semiconductor module includes a base plate, a substrate on the base plate and carrying at least one semiconductor chip, a housing attached to the base plate and at least partially enclosing the substrate, and at least one terminal having one end which protrudes from the housing and another end which has a terminal foot attached on a terminal pad of the metallization by means of ultrasonic welding. The housing has a protective wall which encloses the terminal and divides an interior space of the housing into an unprotected region and a protected region. The protective wall is formed such that a gap is formed between the substrate and the protective wall. The gap is designed to carry a fluid flow such that particles produced during the ultrasonic welding of the terminal foot to the terminal pad are prevented from penetrating into the protected region from the unprotected region.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: April 17, 2018
    Assignee: ABB Schweiz AG
    Inventors: Samuel Hartmann, David Guillon, David Hajas, Markus Thut
  • Publication number: 20160007485
    Abstract: A semiconductor module includes a base plate, a substrate on the base plate and carrying at least one semiconductor chip, a housing attached to the base plate and at least partially enclosing the substrate, and at least one terminal having one end which protrudes from the housing and another end which has a terminal foot attached on a terminal pad of the metallization by means of ultrasonic welding. The housing has a protective wall which encloses the terminal and divides an interior space of the housing into an unprotected region and a protected region. The protective wall is formed such that a gap is formed between the substrate and the protective wall. The gap is designed to carry a fluid flow such that particles produced during the ultrasonic welding of the terminal foot to the terminal pad are prevented from penetrating into the protected region from the unprotected region.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 7, 2016
    Applicant: ABB TECHNOLOGY AG
    Inventors: Samuel HARTMANN, David GUILLON, David HAJAS, Markus THUT
  • Publication number: 20140021640
    Abstract: A method and arrangement are disclosed for electrically connecting a contact of a first substrate to a contact of a second substrate, whereby the first substrate is positioned relative the second substrate. The method includes providing the first substrate with its contact facing towards the second substrate, providing the second substrate with its contact facing away from the first substrate, bonding a bonding medium to the contact of the first substrate, bonding the bonding medium to the first substrate thereby forming a loop, electrically connecting the contact of the second substrate to the bonding medium, and providing the second substrate with the contact on a nose or tongue extending from an edge of the second substrate. The first substrate can be positioned below the second substrate, with a contact of the first substrate connected to a contact of the second substrate.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 23, 2014
    Inventors: Gontran PÂQUES, Dominik Trüssel, Waldemar Groot, Stefan Ellenbroek, David Hajas