Patents by Inventor Choon Keat Or

Choon Keat Or 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: 11502228
    Abstract: A method of producing an optoelectronic semiconductor device includes providing a frame part including a plurality of openings, providing an auxiliary carrier, connecting the auxiliary carrier to the frame part such that the auxiliary carrier covers at least some of the openings at an underside of the frame part, placing conversion elements onto the auxiliary carrier in at least some of the openings, placing optoelectronic semiconductor chips onto the conversion elements in at least some of the openings, applying a housing onto the conversion elements and around the semiconductor chips in at least some of the openings, and removing the frame part and the auxiliary carrier wherein a bottom surface of at least some of the optoelectronic semiconductor chips remains free of the housing.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: November 15, 2022
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Seng-Teong Chang, Choon Keat Or, Lee-Ying Jacqueline Ng, Chai-Yun Jade Looi
  • Publication number: 20210359183
    Abstract: An optoelectronic semiconductor device includes a substrate with a first main side and a second main side. A plurality of light-emitting semiconductor chips is distributed over the first main side and over the second main side. A molding compound encloses the light-emitting semiconductor chips in a lateral direction. The molding compound levels with the light-emitting semiconductor chips in a direction away from the substrate. The molding compound has a top side facing away from the substrate. A plurality of planar electrical interconnects run on the top side and electrically connects the light-emitting semiconductor chips on their radiation exit sides facing away from the substrate.
    Type: Application
    Filed: August 2, 2018
    Publication date: November 18, 2021
    Inventors: Lay Sin KHOO, Choon Keat OR, Choon Sim ONG, Wan Leng LIM, Keng Chong LIM, Choo Kean LIM
  • Publication number: 20210119091
    Abstract: A method of producing an optoelectronic semiconductor device includes providing a frame part including a plurality of openings, providing an auxiliary carrier, connecting the auxiliary carrier to the frame part such that the auxiliary carrier covers at least some of the openings at an underside of the frame part, placing conversion elements onto the auxiliary carrier in at least some of the openings, placing optoelectronic semiconductor chips onto the conversion elements in at least some of the openings, applying a housing onto the conversion elements and around the semiconductor chips in at least some of the openings, and removing the frame part and the auxiliary carrier wherein a bottom surface of at least some of the optoelectronic semiconductor chips remains free of the housing.
    Type: Application
    Filed: August 4, 2017
    Publication date: April 22, 2021
    Inventors: Seng-Teong Chang, Choon Keat Or, Lee-Ying Jacqueline Ng, Chai-Yun Jade Looi
  • Publication number: 20210083160
    Abstract: A semiconductor device and a method for producing a carrier element suitable for a semiconductor device are disclosed. In an embodiment a semiconductor device includes a carrier element including a carrier layer having a first depression extending from a first main surface of the carrier layer in a direction of a second main surface of the carrier layer opposite the first main surface and a metal substrate and an electrically insulating layer on at least a portion of the metal substrate, a first electrically conductive filling component arranged in the first depression in a form-fitting manner, the electrically insulating layer being arranged between the metal substrate and the first filling component and a semiconductor chip arranged on the carrier element, wherein the electrically insulating layer is an anodization layer.
    Type: Application
    Filed: December 14, 2017
    Publication date: March 18, 2021
    Inventors: Choo Kean Lim, Choon Keat Or, Siew Yan Chua, Choon Kim Lim
  • Patent number: 10854788
    Abstract: An optoelectronic component and a method for producing an optoelectronic component are disclosed. In an embodiment a method includes attaching a plurality of optoelectronic semiconductor chips on predetermined locations of an intermediate film, providing a cavity film with a plurality of separated openings, attaching the cavity film to the intermediate film such that each optoelectronic semiconductor chip is associated with a respective opening, wherein the cavity film is thicker than the optoelectronic semiconductor chips such that the cavity film exceeds the optoelectronic semiconductor chips in a direction away from the intermediate film, filling a casting material in each of the openings such that the optoelectronic semiconductor chips are casted with the casting material and removing the intermediate film.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: December 1, 2020
    Assignee: OSRAM OLED GMBH
    Inventors: Choo Kean Lim, Choon Keat Or, Choon Kim Lim, Ai Cheng Chan
  • Publication number: 20200135980
    Abstract: An optoelectronic component and a method for producing an optoelectronic component are disclosed. In an embodiment a method includes attaching a plurality of optoelectronic semiconductor chips on predetermined locations of an intermediate film, providing a cavity film with a plurality of separated openings, attaching the cavity film to the intermediate film such that each optoelectronic semiconductor chip is associated with a respective opening, wherein the cavity film is thicker than the optoelectronic semiconductor chips such that the cavity film exceeds the optoelectronic semiconductor chips in a direction away from the intermediate film, filling a casting material in each of the openings such that the optoelectronic semiconductor chips are casted with the casting material and removing the intermediate film.
    Type: Application
    Filed: July 6, 2017
    Publication date: April 30, 2020
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Choo Kean LIM, Choon Keat OR, Choon Kim LIM, Ai Cheng CHAN
  • Patent number: 9627304
    Abstract: A method of producing a multiplicity of surface-mountable carrier devices includes: A) providing a carrier plate having a first main face and a second main face located opposite the first main face, B) applying an electrically conductive layer to the first main face, C) applying a solder resist mask to a side of the electrically conductive layer remote from the carrier plate, wherein a multiplicity of adjoining regions are formed on the electrically conductive layer by the solder resist mask, D) applying a solder material to the solder resist mask and the electrically conductive layer, wherein the solder resist mask and the electrically conductive layer are at least partially covered by the solder material, and E) singulating the carrier plate and the electrically conductive layer along and through the solder resist mask and the solder material, wherein the solder material remains at least partially on the solder resist mask.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: April 18, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Choo Kean Lim, Chee Jia Chang, Choon Keat Or
  • Patent number: 9559085
    Abstract: A method for producing an optoelectronic device is specified. A housing base body is formed with a self-healing polymer material. A recess is found in the housing base body. The recess is confined by a bottom surface and at least one side wall which are formed at least in places by the plastic material of the base body. An optoelectronic semiconductor chip has a first main surface, a second main surface facing away from the first main surface and at least one side surface connecting the first main surface and the second main surface with each other. The optoelectronic semiconductor chip is placed in the recess, so that the first main surface is brought in contact with the bottom surface and the at least one side surface is brought in contact with the at least one side wall.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: January 31, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Seng-Teong Chang, Choon Keat Or, Wai-Choo Chai, Chong-Tee Ong
  • Publication number: 20160268186
    Abstract: A method of producing a multiplicity of surface-mountable carrier devices includes: A) providing a carrier plate having a first main face and a second main face located opposite the first main face, B) applying an electrically conductive layer to the first main face, C) applying a solder resist mask to a side of the electrically conductive layer remote from the carrier plate, wherein a multiplicity of adjoining regions are formed on the electrically conductive layer by the solder resist mask, D) applying a solder material to the solder resist mask and the electrically conductive layer, wherein the solder resist mask and the electrically conductive layer are at least partially covered by the solder material, and E) singulating the carrier plate and the electrically conductive layer along and through the solder resist mask and the solder material, wherein the solder material remains at least partially on the solder resist mask.
    Type: Application
    Filed: October 17, 2013
    Publication date: September 15, 2016
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Choo Kean Lim, Chee Jia Chang, Choon Keat Or
  • Publication number: 20160005720
    Abstract: A method for producing an optoelectronic device is specified. A housing base body is formed with a self-healing polymer material. A recess is found in the housing base body. The recess is confined by a bottom surface and at least one side wall which are formed at least in places by the plastic material of the base body. An optoelectronic semiconductor chip has a first main surface, a second main surface facing away from the first main surface and at least one side surface connecting the first main surface and the second main surface with each other. The optoelectronic semiconductor chip is placed in the recess, so that the first main surface is brought in contact with the bottom surface and the at least one side surface is brought in contact with the at least one side wall.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 7, 2016
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Seng-Teong Chang, Choon Keat Or, Wai-Choo Chai, Chong-Tee Ong