Patents by Inventor Chan H. Yoo

Chan H. Yoo 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: 10714456
    Abstract: Semiconductor devices including a dual-sided redistribution structure and having low-warpage across all temperatures and associated systems and methods are disclosed herein. In one embodiment, a semiconductor device includes a first semiconductor die electrically coupled to a first side of a redistribution structure and a second semiconductor die electrically coupled to a second side of the redistribution structure opposite the first side. The semiconductor device also includes a first molded material on the first side, a second molded material on the second side, and conductive columns electrically coupled to the first side and extending through the first molded material. The first and second molded materials can have the same volume and/or coefficients of thermal expansion to inhibit warpage of the semiconductor device.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: July 14, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Chan H. Yoo, Mark E. Tuttle
  • Publication number: 20200201807
    Abstract: An apparatus is provided, comprising a plurality of memory devices and a buffering device that permits memory devices with a variety of physical dimensions and memory formats to be used in an industry-standard memory module format. The buffering device includes memory interface circuitry and at least one first-in first-out (FIFO) or multiplexer circuit. The apparatus further comprises a parallel bus connecting the buffering device to the plurality of memory devices. The parallel bus includes a plurality of independent control lines, each coupling the memory interface circuitry to a corresponding subset of a plurality of first subsets of the plurality of memory devices. The parallel bus further includes a plurality of independent data channels, each coupling the at least one FIFO circuit or multiplexer circuit to a corresponding subset of a plurality of second subsets of the plurality of memory devices.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Inventors: Thomas H. Kinsley, George E. Pax, Timothy M. Hollis, Yogesh Sharma, Randon K. Richards, Chan H. Yoo, Gregory A. King, Eric J. Stave
  • Publication number: 20200168554
    Abstract: Described are semiconductor interposer, and microelectronic device assemblies incorporating such semiconductor interposers. The described interposers include multiple redistribution structures on each side of the core; each of which may include multiple individual redistribution layers. The interposers may optionally include circuit elements, such as passive and/or active circuit. The circuit elements may be formed at least partially within the semiconductor core.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 28, 2020
    Inventors: Owen Fay, Chan H. Yoo
  • Publication number: 20200144241
    Abstract: A semiconductor device assembly that includes first and second semiconductor devices connected directly to a first side of a substrate and a plurality of interconnects connected to a second side of the substrate. The substrate is configured to enable the first and second semiconductor devices to communicate with each other through the substrate. The substrate may be a silicon substrate that includes complementary metal-oxide-semiconductor (CMOS) circuits. The first semiconductor device may be a processing unit and the second semiconductor device may be a memory device, which may be a high bandwidth memory device. A method of making a semiconductor device assembly includes applying CMOS processing to a silicon substrate, forming back end of line (BEOL) layers on a first side of the substrate, attaching a memory device and a processing unit directly to the BEOL layers, and forming a redistribution layer on the second side of the substrate.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 7, 2020
    Inventors: Chan H. YOO, Owen R. FAY
  • Publication number: 20200144189
    Abstract: A semiconductor device assembly that includes a second side of an interposer being connected to a first side of a substrate. A plurality of interconnects may be connected to a second side of the substrate. First and second semiconductor devices are connected directly to the first side of the interposer. The interposer is configured to enable the first semiconductor device and the second semiconductor device to communicate with each other through the interposer. The interposer may be a silicon interposer that includes complementary metal-oxide-semiconductor circuits. The first semiconductor device may be a processing unit and the second semiconductor device may be a memory device, which may be a high bandwidth memory device. A method of making a semiconductor device assembly includes attaching both a memory device and a processing unit directly to a first side of an interposer and connecting a second side of the interposer to a substrate.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 7, 2020
    Inventors: Chan H. YOO, Owen R. FAY
  • Patent number: 10593568
    Abstract: Semiconductor devices having a semiconductor die electrically coupled to a redistribution structure and a molded material over the redistribution structure are disclosed herein, along with associated systems and methods. In one embodiment, a semiconductor device includes a semiconductor die attached to a first side of a substrate-free redistribution structure, and a plurality of conductive columns extending through a molded material disposed on the first side of the redistribution structure. The semiconductor device can also include a second redistribution structure on the molded material and electrically coupled to the conductive columns. A semiconductor device can be manufactured using a single carrier and requiring processing on only a single side of the semiconductor device.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 17, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Chan H. Yoo, John F. Kaeding, Ashok Pachamuthu, Mark E. Tuttle
  • Patent number: 10586780
    Abstract: Semiconductor device modules may include a semiconductor die and posts located laterally adjacent to the semiconductor die. A first encapsulant may laterally surround the semiconductor die and the posts. Electrical connectors may extend laterally from the posts, over the first encapsulant, to bond pads on an active surface of the semiconductor die. A protective material may cover the electrical connectors. A second encapsulant may cover the protective material and the electrical connectors. The second encapsulant may be in direct contact with the first encapsulant, the electrical connectors, and the protective material.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: March 10, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Ashok Pachamuthu, Chan H. Yoo, Szu-Ying Ho, John F. Kaeding
  • Publication number: 20200066625
    Abstract: Embodiments of a redistribution layer structure comprise a low-k dielectric material and incorporating a reinforcement structure proximate and inward of a peripheral edge thereof, the reinforcement structure comprising conductive material electrically isolated from conductive paths through the RDL structure. Semiconductor packages including an embodiment of the RDL structure and methods of fabricating such RDL structures are also disclosed.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Hyunsuk Chun, Chan H. Yoo, Tracy N. Tennant
  • Publication number: 20190304860
    Abstract: A semiconductor device assembly including a substrate, a semiconductor device, a stiffener member, and mold compound. The stiffener member is tuned, or configured, to reduce and/or control the shape of warpage of the semiconductor device assembly at an elevated temperature. The stiffener member may be placed on the substrate, on the semiconductor device, and/or on the mold compound. A plurality of stiffener members may be used. The stiffener members may be positioned in a predetermined pattern on a component of the semiconductor device assembly. A stiffener member may be used so that the warpage of a first semiconductor device substantially corresponds to the warpage of a second semiconductor device at an elevated temperature. The stiffener member may be tuned by providing the member with a desired coefficient of thermal expansion (CTE). The desired CTE may be based on the individual CTEs of the components of a semiconductor device assembly.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Inventors: Chan H. Yoo, Mark E. Tuttle
  • Patent number: 10396003
    Abstract: A semiconductor device assembly including a substrate, a semiconductor device, a stiffener member, and mold compound. The stiffener member is tuned, or configured, to reduce and/or control the shape of warpage of the semiconductor device assembly at an elevated temperature. The stiffener member may be placed on the substrate, on the semiconductor device, and/or on the mold compound. A plurality of stiffener members may be used. The stiffener members may be positioned in a predetermined pattern on a component of the semiconductor device assembly. A stiffener member may be used so that the warpage of a first semiconductor device substantially corresponds to the warpage of a second semiconductor device at an elevated temperature. The stiffener member may be tuned by providing the member with a desired coefficient of thermal expansion (CTE). The desired CTE may be based on the individual CTEs of the components of a semiconductor device assembly.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: August 27, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Chan H. Yoo, Mark E. Tuttle
  • Publication number: 20190252342
    Abstract: Semiconductor device modules may include a semiconductor die and posts located laterally adjacent to the semiconductor die. A first encapsulant may laterally surround the semiconductor die and the posts. Electrical connectors may extend laterally from the posts, over the first encapsulant, to bond pads on an active surface of the semiconductor die. A protective material may cover the electrical connectors. A second encapsulant may cover the protective material and the electrical connectors. The second encapsulant may be in direct contact with the first encapsulant, the electrical connectors, and the protective material.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 15, 2019
    Inventors: Ashok Pachamuthu, Chan H. Yoo, Szu-Ying Ho, John F. Kaeding
  • Publication number: 20190237438
    Abstract: Semiconductor devices including a dual-sided redistribution structure and having low-warpage across all temperatures and associated systems and methods are disclosed herein. In one embodiment, a semiconductor device includes a first semiconductor die electrically coupled to a first side of a redistribution structure and a second semiconductor die electrically coupled to a second side of the redistribution structure opposite the first side. The semiconductor device also includes a first molded material on the first side, a second molded material on the second side, and conductive columns electrically coupled to the first side and extending through the first molded material. The first and second molded materials can have the same volume and/or coefficients of thermal expansion to inhibit warpage of the semiconductor device.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Inventors: Chan H. Yoo, Mark E. Tuttle
  • Publication number: 20190214331
    Abstract: A semiconductor device assembly that includes a flexible member having a first portion connected to a substrate and a connector attached to a second portion of the flexible member. The connector is electrically connected to the substrate via a conducting layer within the flexible member. The substrate may be a semiconductor device, such as a chip. The connector may be configured to connect the semiconductor device to another semiconductor device assembly or a system board, such as a printed circuit board. A material may encapsulate at least a portion of the substrate of the semiconductor assembly. The semiconductor device assembly may be formed by selectively connecting the flexible member to a first substrate. A second substrate and connector may then be connected to the flexible member. A release layer may be used to release the assembly of the second substrate, flexible member, and connector from the first substrate.
    Type: Application
    Filed: March 13, 2019
    Publication date: July 11, 2019
    Inventors: Chan H. Yoo, Eiichi Nakano
  • Patent number: 10325874
    Abstract: Semiconductor device modules may include a redistribution layer and a first semiconductor die. A second semiconductor die may be located on the first semiconductor die. Posts may be located laterally adjacent to the first semiconductor die and the second semiconductor die. A first encapsulant may at least laterally surround the first semiconductor die, the second semiconductor die, and the posts. Electrical connectors may extend laterally from the posts, over the first encapsulant, to bond pads on a second active surface of the second semiconductor die. A protective material may cover the electrical connectors. A second encapsulant may be located over the protective material and the electrical connectors. The second encapsulant may be in direct contact with the first encapsulant, the electrical connectors, and the protective material. Conductive bumps may be connected to the redistribution layer on a side of the redistribution layer opposite the first semiconductor die.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 18, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Ashok Pachamuthu, Chan H. Yoo, Szu-Ying Ho, John F. Kaeding
  • Patent number: 10304805
    Abstract: Semiconductor devices including a dual-sided redistribution structure and having low-warpage across all temperatures and associated systems and methods are disclosed herein. In one embodiment, a semiconductor device includes a first semiconductor die electrically coupled to a first side of a redistribution structure and a second semiconductor die electrically coupled to a second side of the redistribution structure opposite the first side. The semiconductor device also includes a first molded material on the first side, a second molded material on the second side, and conductive columns electrically coupled to the first side and extending through the first molded material. The first and second molded materials can have the same volume and/or coefficients of thermal expansion to inhibit warpage of the semiconductor device.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: May 28, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Chan H. Yoo, Mark E. Tuttle
  • Patent number: 10276487
    Abstract: A semiconductor device assembly that includes a flexible member having a first portion connected to a substrate and a connector attached to a second portion of the flexible member. The connector is electrically connected to the substrate via a conducting layer within the flexible member. The substrate may be a semiconductor device, such as a chip. The connector may be configured to connect the semiconductor device to another semiconductor device assembly or a system board, such as a printed circuit board. A material may encapsulate at least a portion of the substrate of the semiconductor assembly. The semiconductor device assembly may be formed by selectively connecting the flexible member to a first substrate. A second substrate and connector may then be connected to the flexible member. A release layer may be used to release the assembly of the second substrate, flexible member, and connector from the first substrate.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: April 30, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Chan H. Yoo, Eiichi Nakano
  • Publication number: 20190115270
    Abstract: A semiconductor device assembly including a substrate, a semiconductor device, a stiffener member, and mold compound. The stiffener member is tuned, or configured, to reduce and/or control the shape of warpage of the semiconductor device assembly at an elevated temperature. The stiffener member may be placed on the substrate, on the semiconductor device, and/or on the mold compound. A plurality of stiffener members may be used. The stiffener members may be positioned in a predetermined pattern on a component of the semiconductor device assembly. A stiffener member may be used so that the warpage of a first semiconductor device substantially corresponds to the warpage of a second semiconductor device at an elevated temperature. The stiffener member may be tuned by providing the member with a desired coefficient of thermal expansion (CTE). The desired CTE may be based on the individual CTEs of the components of a semiconductor device assembly.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 18, 2019
    Inventors: Chan H. Yoo, Mark E. Tuttle
  • Publication number: 20190115286
    Abstract: A semiconductor device assembly that includes a flexible member having a first portion connected to a substrate and a connector attached to a second portion of the flexible member. The connector is electrically connected to the substrate via a conducting layer within the flexible member. The substrate may be a semiconductor device, such as a chip. The connector may be configured to connect the semiconductor device to another semiconductor device assembly or a system board, such as a printed circuit board. A material may encapsulate at least a portion of the substrate of the semiconductor assembly. The semiconductor device assembly may be formed by selectively connecting the flexible member to a first substrate. A second substrate and connector may then be connected to the flexible member. A release layer may be used to release the assembly of the second substrate, flexible member, and connector from the first substrate.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 18, 2019
    Inventors: Chan H. Yoo, Eiichi Nakano
  • Publication number: 20190067038
    Abstract: Semiconductor devices having a semiconductor die electrically coupled to a redistribution structure and a molded material over the redistribution structure are disclosed herein, along with associated systems and methods. In one embodiment, a semiconductor device includes a semiconductor die attached to a first side of a substrate-free redistribution structure, and a plurality of conductive columns extending through a molded material disposed on the first side of the redistribution structure. The semiconductor device can also include a second redistribution structure on the molded material and electrically coupled to the conductive columns. A semiconductor device can be manufactured using a single carrier and requiring processing on only a single side of the semiconductor device.
    Type: Application
    Filed: September 6, 2018
    Publication date: February 28, 2019
    Inventors: Chan H. Yoo, John F. Kaeding, Ashok Pachamuthu, Mark E. Tuttle
  • Publication number: 20190067233
    Abstract: Semiconductor device modules may include a redistribution layer and a first semiconductor die. A second semiconductor die may be located on the first semiconductor die. Posts may be located laterally adjacent to the first semiconductor die and the second semiconductor die. A first encapsulant may at least laterally surround the first semiconductor die, the second semiconductor die, and the posts. Electrical connectors may extend laterally from the posts, over the first encapsulant, to bond pads on a second active surface of the second semiconductor die. A protective material may cover the electrical connectors. A second encapsulant may be located over the protective material and the electrical connectors. The second encapsulant may be in direct contact with the first encapsulant, the electrical connectors, and the protective material. Conductive bumps may be connected to the redistribution layer on a side of the redistribution layer opposite the first semiconductor die.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Inventors: Ashok Pachamuthu, Chan H. Yoo, Szu-Ying Ho, John F. Kaeding