Patents by Inventor Juergen Grafe

Juergen Grafe 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: 8410595
    Abstract: A semiconductor device is disclosed. At least one semiconductor chip is mounted on a substrate and is contacted to contact elements of the substrate. The encapsulation of the semiconductor chip includes the substrate, a cover and a pocket within the connected substrate and cover. The pocket is able to fix the chip in its position, and the cover is composed of the same material as the substrate.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: April 2, 2013
    Assignee: Qimonda AG
    Inventors: Steffen Kroehnert, Kerstin Nocke, Juergen Grafe, Kashi Vishwanath Machani
  • Patent number: 8004072
    Abstract: Packaging systems and methods for semiconductor devices are disclosed. In one embodiment, a packaging system includes a first plate having a first coefficient of thermal expansion (CTE). An integrated circuit is mountable to the first plate. The packaging system includes a second plate coupleable over the first plate over the integrated circuit. The second plate has a second CTE that is substantially a same CTE as the first CTE. A plurality of solder balls is coupleable to the first plate or the second plate and to the integrated circuit.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: August 23, 2011
    Assignee: Qimonda AG
    Inventors: Harry Hedler, Juergen Grafe, Steffen Kroehnert
  • Publication number: 20100090322
    Abstract: Packaging systems and methods for semiconductor devices are disclosed. In one embodiment, a packaging system includes a first plate having a first coefficient of thermal expansion (CTE). An integrated circuit is mountable to the first plate. The packaging system includes a second plate coupleable over the first plate over the integrated circuit. The second plate has a second CTE that is substantially a same CTE as the first CTE. A plurality of solder balls is coupleable to the first plate or the second plate and to the integrated circuit.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Inventors: Harry Hedler, Juergen Grafe, Steffen Kroehnert
  • Publication number: 20080157330
    Abstract: A semiconductor device is disclosed. At least one semiconductor chip is mounted on a substrate and is contacted to contact elements of the substrate. The encapsulation of the semiconductor chip includes the substrate, a cover and a pocket within the connected substrate and cover. The pocket is able to fix the chip in its position, and the cover is composed of the same material as the substrate.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 3, 2008
    Inventors: Steffen Kroehnert, Kerstin Nocke, Juergen Grafe, Kashi Vishwanath Machani
  • Patent number: 7368322
    Abstract: An electronic component includes a base and a chip attached to the base by a plurality of adhesive pads that are spaced apart from one another and are arranged in an intermediate space between the chip and the base. The chip is electrically connected to interconnects of the base. The adhesive pads are partitioned in a regular distribution over the entire surface area of the chip. A molding compound surrounds the chip and is disposed in the intermediate space between the chip and the base.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: May 6, 2008
    Assignee: Infineon Technologies AG
    Inventors: Martin Reiss, Juergen Grafe, Anton Legen, Manuel Carmona
  • Publication number: 20080029884
    Abstract: Multichip devices and methods of making the same. In one embodiment, a chip stack is sandwiched between first and second redistribution substrates. The chip stack is electrically connected to contact structures of the first redistribution substrate and the second redistribution substrate.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 7, 2008
    Inventors: Juergen Grafe, Kimyung Yoon, Peter Poechmueller, Andre Hanke
  • Publication number: 20070001291
    Abstract: An anti-warp heat spreader for semiconductor devices is disclosed, wherein the heat spreader is made of a metal sheet of substantially constant thickness, the metal sheet being perforated by at least one opening to allow for the percolation of an adhesive or a resin. The heat spreader is designed to strengthen the package by providing a strong bond between its components, i.e., the circuit board, die, heat spreader and reinforcing frame. At the same time the heat generated by the die during operation is efficiently dissipated. The heat spreader can easily be attached to the die by positioning it in the mold used to produce the reinforcing frame and then fill the mold with a mold compound. The mold compound will easily flow through the opening or openings, thereby filling the gap between the heat spreader and the die. The mold compound replaces the air that escapes from the gap through the opening or openings. Thus, a strong and intense connection between the die and the heat spreader is constituted.
    Type: Application
    Filed: November 4, 2005
    Publication date: January 4, 2007
    Inventors: Soo Park, Kenneth Rebibis, Juergen Grafe
  • Patent number: 7023097
    Abstract: The invention relates to an FBGA arrangement, comprising a substrate on which at least one chip is chip-bonded face-down, which has a central row of bonding pads connected to contact islands (landing pads) on the substrate by a bonding channel in the substrate via wire bridges, which substrate, for its part, is provided with soldering balls—arranged in an array—for contact connection to a printed circuit board, and the contact islands and the soldering balls being connected to one another via a rewiring of the substrate. The preferred embodiment of the invention is intended to provide an FBGA arrangement which supports the center pad row technology and at the same time has low electrical parasitics.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: April 4, 2006
    Assignee: Infineon Technologies AG
    Inventors: Jochen Thomas, Juergen Grafe, Ingo Wennemuth, Minka Gospodinova-Daltcheva, Maksim Kuzmenka
  • Publication number: 20060017156
    Abstract: An electronic component includes a base and a chip attached to the base by a plurality of adhesive pads that are spaced apart from one another and are arranged in an intermediate space between the chip and the base. The chip is electrically connected to interconnects of the base. The adhesive pads are partitioned in a regular distribution over the entire surface area of the chip. A molding compound surrounds the chip and is disposed in the intermediate space between the chip and the base.
    Type: Application
    Filed: July 19, 2005
    Publication date: January 26, 2006
    Inventors: Martin Reiss, Juergen Grafe, Anton Legen, Manuel Carmona
  • Publication number: 20050098870
    Abstract: The invention relates to an FBGA arrangement, comprising a substrate on which at least one chip is chip-bonded face-down, which has a central row of bonding pads connected to contact islands (landing pads) on the substrate by a bonding channel in the substrate via wire bridges, which substrate, for its part, is provided with soldering balls—arranged in an array—for contact connection to a printed circuit board, and the contact islands and the soldering balls being connected to one another via a rewiring of the substrate. The preferred embodiment of the invention is intended to provide an FBGA arrangement which supports the center pad row technology and at the same time has low electrical parasitics.
    Type: Application
    Filed: August 27, 2004
    Publication date: May 12, 2005
    Inventors: Jochen Thomas, Juergen Grafe, Ingo Wennemuth, Minka Gospodinova-Daltcheva, Maksim Kuzmenka