Patents by Inventor Mei Chin Ng

Mei Chin Ng 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: 11081417
    Abstract: A method of manufacturing a package, comprising embedding the semiconductor chip with an encapsulant comprising a transition metal in a concentration in a range between 10 ppm and 10,000 ppm; selectively converting of a part of the transition metal, such that the electrical conductivity of the encapsulant increases; and plating the converted part of the encapsulant with an electrically conductive material.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 3, 2021
    Assignee: Infineon Technologies AG
    Inventors: Sook Woon Chan, Chau Fatt Chiang, Kok Yau Chua, Soon Lock Goh, Swee Kah Lee, Joachim Mahler, Mei Chin Ng, Beng Keh See, Guan Choon Matthew Nelson Tee
  • Publication number: 20200006267
    Abstract: A molded semiconductor package includes a mold compound having opposing first and second main surfaces and an edge extending between the first and second main surfaces. A semiconductor die is embedded in the mold compound. A plurality of metal pads embedded in the mold compound are electrically connected to the semiconductor die. The metal pads have a bottom face which is uncovered by the mold compound at the second main surface of the mold compound. The metal pads disposed around a periphery of the molded package have a side face which is uncovered by the mold compound at the edge of the mold compound. The faces of the metal pads uncovered by the mold compound are plated. The side face of each metal pad disposed around the periphery of the molded package is recessed inward from the edge of the mold compound. A corresponding manufacturing method is also described.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Inventors: Swee Kah Lee, Hock Heng Chong, Mei Chin Ng, Aileen Manantan Soriano, Fong Mei Lum, Muhammad Muhammat Sanusi, Soon Lock Goh
  • Patent number: 10490470
    Abstract: A method of fabricating a semiconductor package comprises providing a carrier, fabricating an opening in the carrier, attaching a semiconductor chip to the carrier and fabricating an encapsulation body covering the semiconductor chip.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 26, 2019
    Assignee: Infineon Technologies AG
    Inventors: Hock Heng Chong, Sook Woon Chan, Chau Fatt Chiang, Khar Foong Chung, Chee Hong Fang, Muhammat Sanusi Muhammad, Mei Chin Ng, Yean Seng Ng, Pei Luan Pok, Choon Huey Wang
  • Publication number: 20190341324
    Abstract: A method of manufacturing a package, comprising embedding the semiconductor chip with an encapsulant comprising a transition metal in a concentration in a range between 10 ppm and 10,000 ppm; selectively converting of a part of the transition metal, such that the electrical conductivity of the encapsulant increases; and plating the converted part of the encapsulant with an electrically conductive material.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Sook Woon CHAN, Chau Fatt CHIANG, Kok Yau CHUA, Soon Lock GOH, Swee Kah LEE, Joachim MAHLER, Mei Chin NG, Beng Keh SEE, Guan Choon Matthew Nelson TEE
  • Patent number: 10431560
    Abstract: A molded semiconductor package includes a mold compound having opposing first and second main surfaces and an edge extending between the first and second main surfaces. A semiconductor die is embedded in the mold compound. A plurality of metal pads embedded in the mold compound are electrically connected to the semiconductor die. The metal pads have a bottom face which is uncovered by the mold compound at the second main surface of the mold compound. The metal pads disposed around a periphery of the molded package have a side face which is uncovered by the mold compound at the edge of the mold compound. The faces of the metal pads uncovered by the mold compound are plated. The side face of each metal pad disposed around the periphery of the molded package is recessed inward from the edge of the mold compound. A corresponding manufacturing method is also described.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 1, 2019
    Assignee: Infineon Technologies AG
    Inventors: Swee Kah Lee, Hock Heng Chong, Mei Chin Ng, Aileen Manantan Soriano, Fong Mei Lum, Muhammad Muhammat Sanusi, Soon Lock Goh
  • Patent number: 10396007
    Abstract: A package which comprises a first encapsulant configured so that electrically conductive material is plateable thereon, and a second encapsulant configured so that electrically conductive material is not plateable thereon.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 27, 2019
    Assignee: Infineon Technologies AG
    Inventors: Sook Woon Chan, Chau Fatt Chiang, Kok Yau Chua, Soon Lock Goh, Swee Kah Lee, Joachim Mahler, Mei Chin Ng, Beng Keh See, Guan Choon Matthew Nelson Tee
  • Publication number: 20180174935
    Abstract: A method of fabricating a semiconductor package comprises providing a carrier, fabricating an opening in the carrier, attaching a semiconductor chip to the carrier and fabricating an encapsulation body covering the semiconductor chip.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 21, 2018
    Inventors: Hock Heng CHONG, Sook Woon CHAN, Chau Fatt CHIANG, Khar Foong CHUNG, Chee Hong FANG, Muhammat Sanusi MUHAMMAD, Mei Chin NG, Yean Seng NG, Pei Luan POK, Choon Huey WANG
  • Publication number: 20180033752
    Abstract: A molded semiconductor package includes a mold compound having opposing first and second main surfaces and an edge extending between the first and second main surfaces. A semiconductor die is embedded in the mold compound. A plurality of metal pads embedded in the mold compound are electrically connected to the semiconductor die. The metal pads have a bottom face which is uncovered by the mold compound at the second main surface of the mold compound. The metal pads disposed around a periphery of the molded package have a side face which is uncovered by the mold compound at the edge of the mold compound. The faces of the metal pads uncovered by the mold compound are plated. The side face of each metal pad disposed around the periphery of the molded package is recessed inward from the edge of the mold compound. A corresponding manufacturing method is also described.
    Type: Application
    Filed: October 11, 2017
    Publication date: February 1, 2018
    Inventors: Swee Kah Lee, Hock Heng Chong, Mei Chin Ng, Aileen Manantan Soriano, Fong Mei Lum, Muhammad Muhammat Sanusi, Soon Lock Goh
  • Patent number: 9806043
    Abstract: A molded semiconductor package includes a mold compound having opposing first and second main surfaces and an edge extending between the first and second main surfaces. A semiconductor die is embedded in the mold compound. A plurality of metal pads are also embedded in the mold compound and electrically connected to the semiconductor die. The metal pads have a bottom face which is uncovered by the mold compound at the second main surface of the mold compound. The metal pads disposed around a periphery of the molded package have a side face which is uncovered by the mold compound at the edge of the mold compound. The faces of the metal pads uncovered by the mold compound are plated. The side face of each metal pad disposed around the periphery of the molded package is recessed inward from the edge of the mold compound. A corresponding manufacturing method is also described.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 31, 2017
    Assignee: Infineon Technologies AG
    Inventors: Swee Kah Lee, Hock Heng Chong, Mei Chin Ng, Aileen Manantan Soriano, Fong Mei Lum, Muhammad Muhammat Sanusi, Soon Lock Goh
  • Publication number: 20170256509
    Abstract: A molded semiconductor package includes a mold compound having opposing first and second main surfaces and an edge extending between the first and second main surfaces. A semiconductor die is embedded in the mold compound. A plurality of metal pads are also embedded in the mold compound and electrically connected to the semiconductor die. The metal pads have a bottom face which is uncovered by the mold compound at the second main surface of the mold compound. The metal pads disposed around a periphery of the molded package have a side face which is uncovered by the mold compound at the edge of the mold compound. The faces of the metal pads uncovered by the mold compound are plated. The side face of each metal pad disposed around the periphery of the molded package is recessed inward from the edge of the mold compound. A corresponding manufacturing method is also described.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 7, 2017
    Inventors: Swee Kah Lee, Hock Heng Chong, Mei Chin Ng, Aileen Manantan Soriano, Fong Mei Lum, Muhammad Muhammat Sanusi, Soon Lock Goh
  • Publication number: 20170256472
    Abstract: A package which comprises a first encapsulant configured so that electrically conductive material is plateable thereon, and a second encapsulant configured so that electrically conductive material is not plateable thereon.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Inventors: Sook Woon CHAN, Chau Fatt CHIANG, Kok Yau CHUA, Soon Lock GOH, Swee Kah LEE, Joachim MAHLER, Mei Chin NG, Beng Keh SEE, Guan Choon Matthew Nelson TEE
  • Patent number: 9475691
    Abstract: A semiconductor package includes an electrically conductive lead-frame, including a first die paddle having a first opening, and a plurality of electrically conductive leads, a ridge formed around a perimeter of the first opening, and an electrically insulating molding compound. The electrically insulating molding compound includes an interior cavity being defined by a planar base surface and outer sidewalls, a second opening formed in the base surface, and an interior sidewall within the interior cavity. The molding compound is formed around the lead-frame with the first die paddle in the interior cavity. The first and second openings are aligned with one another so as to form a port that provides access to the interior cavity. The ridge and the interior sidewall form a dam that is configured to collect liquefied sealant and prevent the liquefied sealant from overflowing into the port or into adjacent regions of the interior cavity.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 25, 2016
    Assignee: Infineon Technologies AG
    Inventors: Kok Yau Chua, Sook Woon Chan, Chau Fatt Chiang, Stefan Martens, Matthias Steiert, Kian Hong Yeo, Hock Siang Chua, Mei Chin Ng, Swee Kah Lee
  • Patent number: 9219025
    Abstract: A molded flip-chip semiconductor package includes a leadframe having opposing first and second main surfaces, a first metallization on the first main surface, a second metallization on the second main surface, recessed regions which extend from the second main surface toward the first main surface, and spaced apart leads chemically etched into the leadframe between gaps in the first metallization. The package further includes a semiconductor die having a plurality of pads facing and attached to the leads of the leadframe, a first molding compound that fills the recessed regions, and a second molding compound that encases the semiconductor die and fills the space between the leads such that the second molding compound abuts the first molding compound. A is the overall thickness of the leadframe, B is the spacing between adjacent ones of the leads, and B/A<1.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: December 22, 2015
    Assignee: Infineon Technologies AG
    Inventors: Swee Kah Lee, Chee Hong Fang, Mei Chin Ng
  • Patent number: 8951841
    Abstract: In one embodiment, a semiconductor package includes a clip frame with a first clip having a first support structure, a first lever, and a first contact portion, which is disposed on a front side of the semiconductor package. The first support structure is adjacent an opposite back side of the semiconductor package. The first lever joins the first contact portion and the first support structure. A first die is disposed over the first support structure of the first clip. The first die has a first contact pad on the front side of the semiconductor package. An encapsulant material surrounds the first die and the first clip.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: February 10, 2015
    Assignee: Infineon Technologies AG
    Inventors: Melissa Mei Ching Ng, Mei Chin Ng, Peng Soon Lim
  • Publication number: 20130249067
    Abstract: In one embodiment, a semiconductor package includes a clip frame with a first clip having a first support structure, a first lever, and a first contact portion, which is disposed on a front side of the semiconductor package. The first support structure is adjacent an opposite back side of the semiconductor package. The first lever joins the first contact portion and the first support structure. A first die is disposed over the first support structure of the first clip. The first die has a first contact pad on the front side of the semiconductor package. An encapsulant material surrounds the first die and the first clip.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 26, 2013
    Applicant: Infineon Technologies AG
    Inventors: Melissa Mei Ching Ng, Mei Chin Ng, Peng Soon Lim