Patents by Inventor Ewald Guenther

Ewald Guenther 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: 20240047429
    Abstract: A power module includes: a first substrate having a patterned first metallization; a second substrate vertically aligned with the first substrate and having a patterned second metallization that faces the patterned first metallization; first vertical power transistor dies having a drain pad attached to a first island of the patterned first metallization and a source pad electrically connected to a first island of the patterned second metallization via first spacers; and second vertical power transistor dies having a source pad electrically connected to the first island of the patterned first metallization via second spacers. A first subset of the second vertical power transistor dies has a drain pad attached to a second island of the patterned second metallization. A second subset of the second vertical power transistor dies has a drain pad attached to a third island of the patterned second metallization. A method of producing the module is described.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 8, 2024
    Inventors: Adrian Lis, Ewald Guenther, Thomas Schmid
  • Publication number: 20230223312
    Abstract: A semiconductor package includes: a first substrate having a first metallized side; a semiconductor die attached to the first metallized side of the first substrate at a first side of the die, a second side of the die opposite the first side being covered by a passivation, the passivation having a first opening that exposes at least part of a first pad at the second side of the die; a thermally and electrically conductive spacer attached to the part of the first pad that is exposed by the first opening in the passivation, the spacer at least partly overhanging the passivation along at least one side face of the semiconductor die; a second substrate having a first metallized side attached to the spacer at an opposite side of the spacer as the semiconductor die; and an encapsulant encapsulating the semiconductor die and the spacer. Additional spacer embodiments are described.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 13, 2023
    Inventors: Christian Neugirg, Adrian Lis, Peter Scherl, Ewald Guenther
  • Patent number: 8344360
    Abstract: An encapsulation for an organic light emitting diode (OLED) device is disclosed. The encapsulation includes a sealing dam surrounding the cell region of the OLED device to support a cap. Spacer particles are randomly located in the cell region to prevent the cap from contacting the active components, thereby protecting them from damage. The sealing dam provides a sealing region between the edge of the cap and dam in which an adhesive is applied to seal the OLED device. The use of the sealing dam advantageously enables devices to be formed with narrower sealing widths.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: January 1, 2013
    Assignees: Osram Opto Semiconductor GmbH, Institute of Materials Research and Engineering
    Inventors: Mark Auch, Ewald Guenther, Lim Shuang Fang, Chua Soo Jin, Low Bee Ling
  • Patent number: 7432533
    Abstract: An encapsulation for a device is disclosed. Spacer particles are randomly located in the device region to prevent a cap mounted on the substrate from contacting the active components, thereby protecting them from damage. The spacer particles comprise a base and an upper portion, the base being at least equal to or wider than the upper portion, for preventing the generation of dark spots around the spacer particles.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: October 7, 2008
    Assignees: Osram GmbH, Agency for Science, Technology and Research
    Inventors: Mark Auch, Ewald Guenther, Soo Jin Chua
  • Patent number: 7423375
    Abstract: An electroluminescent device having a protection layer in the cap bonding region to which the cap is bonded. The protection layer can be formed from photosensitive or non-photosensitive materials. The protection layer protects the layers below from being damage during removal of polymer materials.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: September 9, 2008
    Assignee: OSRAM GmbH
    Inventors: Ewald Guenther, Hooi Bin Lim, Shi Chai Chong, David Lacey
  • Patent number: 7419842
    Abstract: A method of encapsulating a device is disclosed. Spacer particles are randomly located in a device region to prevent a cap mounted on the substrate from contacting the active components when pressure is applied to the cap, thereby protecting the active components from damage. The spacer particles comprise a base and an upper portion, the base being at least equal to or wider than the upper portion.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: September 2, 2008
    Assignees: Osram GmbH, Agency for Science, Technology and Research
    Inventors: Mark Auch, Ewald Guenther, Soo Jin Chua
  • Patent number: 7394153
    Abstract: An encapsulation for a device is disclosed. Spacer particles are randomly located in the device region to prevent a cap mounted on the substrate from contacting the active components, thereby protecting them from damage. The spacer particles are fixed to one side of the substrate to prevent any movement.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: July 1, 2008
    Assignees: Osram Opto Semiconductors GmbH, Institute of Materials Research and Engineering
    Inventors: Mark Auch, Ewald Guenther, Lim Shuang Fang, Chua Soo Jin
  • Publication number: 20070190682
    Abstract: An OLED device includes pillars, wherein the pillars serve to pattern a conductive layer during deposition. The profile of the pillars covers the edges of at least one functional layer to protect it from exposure to potentially deleterious substances.
    Type: Application
    Filed: April 20, 2007
    Publication date: August 16, 2007
    Applicants: OSRAM OPTO SEMICONDUCTORS GMBH, INSTITUTE OF MATERIALS RESEARCH AND ENGINEERING
    Inventors: Mark Auch, Ewald Guenther, Soo Jin Chua
  • Publication number: 20070166853
    Abstract: The invention concerns an LED arrangement with at least one LED chip comprising a radiation decoupling surface through which the bulk of the electromagnetic radiation generated in the LED chip is decoupled. Arranged on the radiation decoupling surface is at least one phosphor layer for converting the electromagnetic radiation generated in the LED chip. A housing envelops portions of the LED chip and the phosphor layer.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 19, 2007
    Inventors: Ewald Guenther, Gunter Waitl, Herbert Brunner, Jorg Strauss
  • Publication number: 20070128765
    Abstract: A method of encapsulating a device is disclosed. Spacer particles are randomly located in a device region to prevent a cap mounted on the substrate from contacting the active components when pressure is applied to the cap, thereby protecting the active components from damage. The spacer particles comprise a base and an upper portion, the base being at least equal to or wider than the upper portion.
    Type: Application
    Filed: February 12, 2007
    Publication date: June 7, 2007
    Applicants: OSRAM GMBH, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Mark Auch, Ewald Guenther, Soo Chua
  • Patent number: 7221093
    Abstract: An OLED device having pillars, wherein the pillars serve to pattern a conductive layer during deposition. The profile of the pillars covers the edges of at least one functional layer to protect it from exposure to potentially deleterious substances.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: May 22, 2007
    Assignees: Institute of Materials Research and Engineering, Osram Opto Semiconductor GmbH
    Inventors: Mark Auch, Ewald Guenther, Soo Jin Chua
  • Publication number: 20070063636
    Abstract: The invention discloses a method for manufacturing an organic electro-luminescent display device, the method comprising the steps of: providing a light-permeable substrate; arranging a plurality of transparent electrodes in a stripe-like manner on the light-permeable substrate, the transparent electrodes being made of a light-permeable con-ductive film; forming at least one organic layer on the subassembly, the at least one organic layer being made of an organic elec-tro-luminescent medium so that the at least one organic layer covers the electrodes; forming a conductive film all over the at least one organic layer; and removing at least one portion of the conductive film so as to create stipe-like electrodes being electrical isolated to each other and extending in a direction perpendicular to the transparent electrodes using a radiation method.
    Type: Application
    Filed: August 9, 2004
    Publication date: March 22, 2007
    Inventors: Ewald Guenther, Karsten Heuser, Georg Wittman
  • Patent number: 7166007
    Abstract: A method of encapsulating a device is disclosed. Spacer particles are randomly located in the device region to prevent a cap mounted on the substrate from contacting the active components, thereby protecting them from damage. The spacer particles are fixed to one side of the substrate to prevent any movement.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: January 23, 2007
    Assignees: Osram Opto Semiconductors GmbH, Institute of Materials Research and Engineering
    Inventors: Mark Auch, Ewald Guenther, Lim Shuang Fang, Chua Soo Jin
  • Patent number: 7148624
    Abstract: A method to ensure uniform deposition of organic layer is disclosed. Since the organic layer is very thin, any deviation from the target thickness will result in visible optical defects. A homogenous layer which exhibits good coating behaviour with organic materials is provided beneath the organic layer. By covering the metal interconnects, the adverse effect on the uniformity of the polymer layer is reduced or prevented.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: December 12, 2006
    Assignee: Osram Opto Semiconductors (Malaysia) Sdn. Bhd
    Inventors: Ewald Guenther, Hooi Bin Lim, Cheng Kooi Tan, Shi Chai Chong, Hagen Klausmann
  • Publication number: 20060128042
    Abstract: A method for encapsulating at least one organic light-emitting (OLED) device (22) comprising the step of forming a concave region (24) on a plate (6) by applying a negative pressure to a predetermined area of the plate. The plate is attached to a substrate (1) comprising at least one active region (23) such that the concave region (24) of the plate (6) spans over the active region (23). Also disclosed is a OLED device (22), in which at least a part of an encapsulation of the device is formed by applying a negative pressure to a predetermined area of a plate (6) forming a concave region (24) of the plate (6).
    Type: Application
    Filed: November 7, 2005
    Publication date: June 15, 2006
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Wolfgang Gramann, Ewald Guenther
  • Patent number: 7026758
    Abstract: A reinforcement technique used in the fabrication of displays, such as organic light emissive diode (OLED) display, is disclosed. A stiff reinforcement lid is mounted on a thin substrate to encapsulate the OLED cells. The lid serves to reinforce the thin flexible substrate and protect it from breakage. It comprises preferably of metal or other materials that have higher stiffness and ductility than the thin substrate. The fabricated display is compatible for integration into chip cards and other flexible applications.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: April 11, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Ewald Guenther, Ong Kian Soo
  • Patent number: 7026660
    Abstract: A device having bond pads within a bond pad region, the bond pads comprising a conductive material that is stable when exposed to atmospheric constituents. The bond pads can be formed from conductive oxide materials such as indium tin oxide. A contact layer is provided to enhance the conductivity between the bond pads and the active component of the device.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: April 11, 2006
    Assignee: Osram Opto Semiconductors (Malaysia) Sdn. Bhd
    Inventors: Ewald Guenther, Hooi Bin Lim, Shahrol Izzanni Abdul Manaf, Stefan Eigenbrodt, Soong Lin Teng
  • Publication number: 20050236640
    Abstract: An encapsulation for an electrical device is disclosed. The encapsulation comprises plastic substrates which are laminated onto the surface of the electrical device. The use of laminated plastics is particularly useful for flexible electrical devices such as organic LEDs.
    Type: Application
    Filed: June 29, 2005
    Publication date: October 27, 2005
    Inventors: Ewald Guenther, Wei Wang, Soo Chua
  • Patent number: 6936856
    Abstract: An OLED device capable of emitting multiple colors is disclosed. In one embodiment of the invention, multiple substrates are stacked upon one another, wherein the different substrates emit light of a given color. In another embodiment of the invention, these substrates are separated by spacer particles to prevent the overlying substrates from contacting the active components.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: August 30, 2005
    Assignees: Osram Opto Semiconductors GmbH, Infineon Technologies Aktiengesellschaft
    Inventors: Ewald Guenther, Charles Lee Wee Ming
  • Patent number: 6933537
    Abstract: Disclosed is a technique for increasing the shelf life of devices, such as OLED which requires hermetic sealing from moisture and oxygen with out increasing the bonding width. In one embodiment, the permeation path of moisture or oxygen is increased without increasing the bonding width. This is achieved by using a grooved interface between the cap and substrate on which the components of the device are formed. The grooved interface can comprise various geometric shapes.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: August 23, 2005
    Assignees: Osram Opto Semiconductors GmbH, Institute of Materials Research & Engineering
    Inventors: Low Hong Yee, Ewald Guenther, Chua Soo Jin