Patents by Inventor Renate Hofmann

Renate Hofmann 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: 8975612
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: March 10, 2015
    Assignee: Infineon Technologies AG
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Patent number: 8952489
    Abstract: A semiconductor package includes a semiconductor chip, an inductor applied to the semiconductor chip. The inductor includes at least one winding. A space within the at least one winding is filled with a magnetic material.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: February 10, 2015
    Assignee: Infineon Technologies AG
    Inventors: Klaus Elian, Jens Pohl, Horst Theuss, Renate Hofmann, Alexander Glas, Carsten Ahrens
  • Publication number: 20140203399
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Application
    Filed: March 19, 2014
    Publication date: July 24, 2014
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Patent number: 8709831
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: April 29, 2014
    Assignee: Infineon Technologies AG
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Publication number: 20140097514
    Abstract: A semiconductor package includes a semiconductor chip, an inductor applied to the semiconductor chip. The inductor includes at least one winding. A space within the at least one winding is filled with a magnetic material.
    Type: Application
    Filed: October 9, 2012
    Publication date: April 10, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Klaus Elian, Jens Pohl, Horst Theuss, Renate Hofmann, Alexander Glas, Carsten Ahrens
  • Publication number: 20130260483
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 3, 2013
    Applicant: Infineon Technologies AG
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Patent number: 8470612
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 25, 2013
    Assignee: Infineon Technologies AG
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Publication number: 20120086102
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first inductor coil within and/or over a substrate. The first inductor coil is formed adjacent a top side of the substrate. First trenches are formed within the substrate adjacent the first inductor coil. The first trenches are filled at least partially with a magnetic fill material. At least a first portion of the substrate underlying the first inductor coil is thinned. A backside magnetic layer is formed under the first portion of the substrate. The backside magnetic layer and the magnetic fill material form at least a part of a magnetic core region of the first inductor coil.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Inventors: Renate Hofmann, Carsten Ahrens, Wolfgang Klein, Alexander Glas
  • Patent number: 7737560
    Abstract: A power semiconductor IC device is disclosed. In one embodiment, the device includes a substrate, and a layer structure formed on the substrate. The layer structure includes a metallization layer including copper, wherein the metallization layer is formed as a stack structure including at least two copper layers and a stabilization layer between the two copper layers.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: June 15, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Matthias Stecher, Renate Hofmann, Joerg Busch
  • Publication number: 20070267749
    Abstract: A power semiconductor IC device is disclosed. In one embodiment, the device includes a substrate, and a layer structure formed on the substrate. The layer structure includes a metallization layer including copper, wherein the metallization layer is formed as a stack structure including at least two copper layers and a stabilization layer between the two copper layers.
    Type: Application
    Filed: May 18, 2006
    Publication date: November 22, 2007
    Inventors: Matthias Stecher, Renate Hofmann, Joerg Busch
  • Patent number: 7276803
    Abstract: Semiconductor components having a semiconductor body which includes a semiconductor base surface have to be sealed with a molding compound in order to protect against moisture or heat. Mechanical interlocking of the molding compound to the semiconductor base surface is achieved by means of at least one interlocking structure. This may be either a horizontal interlocking structure for mechanically interlocking the molding compound to the semiconductor base surface in the direction which is horizontal with respect to the semiconductor base surface and/or a vertical interlocking structure for mechanically interlocking the molding compound to the semiconductor base surface in the direction which is vertical with respect to the semiconductor base surface.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: October 2, 2007
    Assignee: Infineon Technologies AG
    Inventors: Matthias Stecher, Renate Hofmann, Joerg Busch
  • Publication number: 20060035458
    Abstract: The invention relates to a semiconductor component having a semiconductor body (1), to which a metallization (10), which is formed from metallization layers (11, 13, 15, 17) and separating layers (12, 14, 16, 18) arranged alternately in succession, a dielectric (2) and a molding compound (3) joined to the dielectric (2) are applied alternately in succession.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 16, 2006
    Applicant: Infineon Technologies AG
    Inventors: Peter Nelle, Renate Hofmann, Jorg Busch, Alfred Edtmair, Manfred Schneegans, Matthias Stecher
  • Publication number: 20050127534
    Abstract: Semiconductor components having a semiconductor body which includes a semiconductor base surface have to be sealed with a molding compound in order to protect against moisture or heat. Mechanical interlocking of the molding compound to the semiconductor base surface is achieved by means of at least one interlocking structure. This may be either a horizontal interlocking structure for mechanically interlocking the molding compound to the semiconductor base surface in the direction which is horizontal with respect to the semiconductor base surface and/or a vertical interlocking structure for mechanically interlocking the molding compound to the semiconductor base surface in the direction which is vertical with respect to the semiconductor base surface.
    Type: Application
    Filed: September 29, 2004
    Publication date: June 16, 2005
    Inventors: Matthias Stecher, Renate Hofmann, Joerg Busch
  • Publication number: 20030178917
    Abstract: A piezoceramic bending converter (1) provided with a flat supporting body (2) and a polarized lead zirconate titanium piezoceramic (3) applied to at least one side of said supporting body. For low thermal self deformation, a nickel/cobalt/iron alloy, nickel/iron alloy and a silicon/germanium semi-material are used as materials for the supporting body (2), wherein the thermal expansion coefficient of the supporting body (2) is adapted to that of the piezoceramic (3).
    Type: Application
    Filed: January 22, 2003
    Publication date: September 25, 2003
    Inventors: Herbert Hofmann, Renate Hofmann, Michael Riedel, Andreas Schmid