Patents by Inventor Chee Voon Tan

Chee Voon Tan 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: 20250140729
    Abstract: A molded power package includes a laser-activatable mold compound having laser-activated regions which are plated with an electrically conductive material to form metal pads and/or metal traces at a first side of the mold compound. A semiconductor power die with bond pads is embedded in the laser-activatable mold compound. A bond pad interconnect electrically connects the bond pads of the semiconductor power die to the metal pads and/or metal traces at the first side of the laser-activatable mold compound. The semiconductor power die is mounted on a carrier section of a leadframe. A carrier interconnect section of the leadframe integral with the carrier section electrically connects the carrier section to the metal pads and/or metal traces at the first side of the laser-activatable mold compound. An upper surface of the carrier interconnect section is at a height that is elevated relative to an upper surface of the carrier section.
    Type: Application
    Filed: October 25, 2024
    Publication date: May 1, 2025
    Inventors: Chee Hong Lee, Kok Yau Chua, Chai Chee Lee, Chee Voon Tan, Naveendran Chellamuthu
  • Publication number: 20250140734
    Abstract: A power die package includes a power die having a plurality of bond pads at an upper surface of the power die. The package further includes a plurality of contact structures. A contact structure includes: a bond wire bonded to one of the plurality of bond pads and folded back to the bond pad to form a closed loop, or at least three bumps laterally spaced from one another and disposed on one or more bond pads; and a continuous longitudinally extended electrically conductive element connected to the at least three bumps in at least three contact positions. The conductive element bends away from the power die between pairs of consecutive contact positions. The package further includes a mold compound partially encapsulating the contact structure. The mold compound includes an outer surface facing away from the power die. The contact structure is partially exposed at the outer surface.
    Type: Application
    Filed: October 17, 2024
    Publication date: May 1, 2025
    Inventors: Lee Siang Tey, Khay Chwan Andrew Saw, Chee Hong Lee, Chin Kee Leow, Mohd Rasydan Hakam Mohamad Tahir, Muhammad Izzat Ramli, Poi Siong Teo, Chee Voon Tan, Xavier Arokiasamy, Wenn Tze Ho, Modh Saiful Azam Mohd Rapheal, Chan Lam Cha
  • Publication number: 20250096082
    Abstract: An electrical interconnect clip includes a die interface portion that is adapted for mating in between two vertically stacked semiconductor dies, and a carrier connection portion that is configured to electrically connect the two vertically stacked semiconductor dies with a carrier, wherein the die interface portion comprises a lower mating surface, an upper mating surface opposite from the lower mating surface, and a solder retention feature formed by one or more grooves in the upper mating surface that are spaced apart from the outer edge sides of the electrical interconnect clip and surround a die attach area of the upper mating surface.
    Type: Application
    Filed: September 18, 2023
    Publication date: March 20, 2025
    Inventors: Mei Yih Goh, Chee Voon Tan, Sung Hoe Yeong, Michael Stadler
  • Publication number: 20250062273
    Abstract: A package includes: a vertically extending first electronic component with at least one exposed electrically conductive first terminal; a vertically extending second electronic component with at least one exposed electrically conductive second terminal; and a clip with an accommodation volume in which the first electronic component and the second electronic component are accommodated and are held together. The at least one first terminal and the at least one second terminal are electrically accessible at a bottom of the clip.
    Type: Application
    Filed: August 6, 2024
    Publication date: February 20, 2025
    Inventors: Chee Yang Ng, Chee Hong Lee, Kok Yau Chua, Shih Kien Long, Chee Voon Tan, Jayaganasan Narayanasamy
  • Publication number: 20250054842
    Abstract: A package including a component for a package is disclosed. In one example, wherein the component comprises a functional body, and a wettability layer arranged on a main surface of the functional body and configured for promoting wetting of a connection medium to be applied on the wettability layer for connecting the component with a further component of the package. The wettability layer has a lateral circumference at least part of which having a concave edge.
    Type: Application
    Filed: August 1, 2024
    Publication date: February 13, 2025
    Applicant: Infineon Technologies AG
    Inventors: Rowel TABAJONDA, Michael STADLER, Aira Lourdes Baring VILLAMOR, Mei Yih GOH, Juliane JUNESCH, Chee Voon TAN, Mei Qi TAY
  • Publication number: 20240006260
    Abstract: A package is disclosed. In one example, the package includes an electronic component and an encapsulant encapsulating at least part of the electronic component. A first electrically conductive structure is arranged on one side of the electronic component, a second electrically conductive structure arranged on an opposing other side of the electronic component and being electrically coupled with the electronic component, and at least one sidewall recess at the encapsulant. The first electrically conductive structure and the second electrically conductive structure are configured to be at different electric potentials during operation of the package. The first electrically conductive structure and the second electrically conductive structure are exposed at opposing main surfaces of the encapsulant.
    Type: Application
    Filed: May 8, 2023
    Publication date: January 4, 2024
    Applicant: Infineon Technologies AG
    Inventors: Chee Hong LEE, Soon Lock GOH, Chai Chee LEE, Swee Kah LEE, Luay Kuan ONG, Chee Voon TAN
  • Publication number: 20230282553
    Abstract: A power module for PCB embedding includes: a leadframe; a power semiconductor die with a first load terminal and control terminal at a first side of the die and a second load terminal at the opposite side, the second load terminal soldered to the leadframe; a first metal clip soldered to the first load terminal and forming a first terminal of the power module at a first side of the power module; and a second metal clip soldered to the control terminal and forming a second terminal of the power module at the first side of the power module. The leadframe forms a third terminal of the power module at the first side of the power module, or a third metal clip is soldered to the leadframe and forms the third terminal. The power module terminals are coplanar within +/?30 ?m at the first side of the power module.
    Type: Application
    Filed: May 11, 2023
    Publication date: September 7, 2023
    Inventors: Thomas Stoek, Frank Daeche, Chee Voon Tan
  • Publication number: 20230230903
    Abstract: A semiconductor chip is provided. The semiconductor chip may include a front side including a control chip contact and a first controlled chip contact, a back side including a second controlled chip contact, a backside metallization formed over the back side in contact with the second controlled chip contact, and a stop region extending at least partially along an outer edge of the back side between a contact portion of the backside metallization and the outer edge of the back side. The contact portion is configured to be attached to an electrically conductive structure by a die attach material, a surface of the stop region is recessed with respect to a surface of the contact portion, and/or the surface of the stop region has a lower wettability with respect to the die attach material than the contact portion.
    Type: Application
    Filed: December 21, 2022
    Publication date: July 20, 2023
    Applicant: Infineon Technologies AG
    Inventors: Hooi Boon TEOH, Hao ZHUANG, Oliver BLANK, Paul Armand CALO, Markus DINKEL, Josef Höglauer, Daniel Hölzl, Wee Aun JASON LIM, Gerhard Thomas Nöbauer, Ralf OTREMBA, Martin Pölzl, Ying Pok SAM, Xaver Schlögel, Chee Voon TAN
  • Patent number: 11699640
    Abstract: A power module for PCB embedding includes: a leadframe; a power semiconductor die with a first load terminal and control terminal at a first side of the die and a second load terminal at the opposite side, the second load terminal soldered to the leadframe; a first metal clip soldered to the first load terminal and forming a first terminal of the power module at a first side of the power module; and a second metal clip soldered to the control terminal and forming a second terminal of the power module at the first side of the power module. The leadframe forms a third terminal of the power module at the first side of the power module, or a third metal clip is soldered to the leadframe and forms the third terminal. The power module terminals are coplanar within +/?30 ?m at the first side of the power module.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: July 11, 2023
    Assignee: Infineon Technologies AG
    Inventors: Thomas Stoek, Frank Daeche, Chee Voon Tan
  • Patent number: 11587800
    Abstract: A method includes providing a carrier, mounting a plurality of semiconductor dies on the carrier, forming a region of electrically insulating encapsulant material on the carrier that covers each of the semiconductor dies, removing sections of the encapsulant material to form gaps in the region of electrically insulating encapsulant material between each of the semiconductor dies, forming electrically conductive material within the gaps, and singulating the region of electrically insulating encapsulant material along each of the gaps to form a plurality of discrete encapsulant bodies. Each of the packaged semiconductor devices comprises a sidewall-facing terminal that is disposed on a sidewall of the encapsulant body. For each of the packaged semiconductor devices the sidewall-facing terminal is electrically connected to the semiconductor die of the respective packaged semiconductor device.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: February 21, 2023
    Assignee: Infineon Technologies AG
    Inventors: Chau Fatt Chiang, Khay Chwan Andrew Saw, Chee Voon Tan
  • Publication number: 20230051100
    Abstract: A molded semiconductor package includes a lead frame having one or more first leads monolithically formed with a die pad and extending outward from the pad in a first direction. A semiconductor die is attached to the die pad at a first side of the die. A metal clip of a clip frame is attached to a power terminal at a second side of the die. One or more second leads monolithically formed with the metal clip extend outward from the clip in a second direction different than the first direction. A mold compound embeds the die. The first lead(s) and the second lead(s) are exposed at different sides of the mold compound and do not vertically overlap with one another. Within the mold compound, the clip transitions from a first level above the power terminal to a second level in a same plane as the leads.
    Type: Application
    Filed: November 3, 2022
    Publication date: February 16, 2023
    Inventors: Bun Kian Tay, Mei Yih Goh, Martin Gruber, Josef Hoeglauer, Michael Juerss, Josef Maerz, Thorsten Meyer, Thorsten Scharf, Chee Voon Tan
  • Publication number: 20230049564
    Abstract: A method includes providing a carrier, mounting a plurality of semiconductor dies on the carrier, forming a region of electrically insulating encapsulant material on the carrier that covers each of the semiconductor dies, removing sections of the encapsulant material to form gaps in the region of electrically insulating encapsulant material between each of the semiconductor dies, forming electrically conductive material within the gaps, and singulating the region of electrically insulating encapsulant material along each of the gaps to form a plurality of discrete encapsulant bodies. Each of the packaged semiconductor devices comprises a sidewall-facing terminal that is disposed on a sidewall of the encapsulant body. For each of the packaged semiconductor devices each of the sidewall-facing terminals is electrically connected to the semiconductor die of the respective packaged semiconductor device.
    Type: Application
    Filed: October 26, 2022
    Publication date: February 16, 2023
    Inventors: Chau Fatt Chiang, Khay Chwan Andrew Saw, Chee Voon Tan
  • Publication number: 20220406692
    Abstract: A power module for PCB embedding includes: a leadframe; a power semiconductor die with a first load terminal and control terminal at a first side of the die and a second load terminal at the opposite side, the second load terminal soldered to the leadframe; a first metal clip soldered to the first load terminal and forming a first terminal of the power module at a first side of the power module; and a second metal clip soldered to the control terminal and forming a second terminal of the power module at the first side of the power module. The leadframe forms a third terminal of the power module at the first side of the power module, or a third metal clip is soldered to the leadframe and forms the third terminal. The power module terminals are coplanar within +/?30 ?m at the first side of the power module.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 22, 2022
    Inventors: Thomas Stoek, Frank Daeche, Chee Voon Tan
  • Patent number: 11515244
    Abstract: A molded semiconductor package includes a lead frame having one or more first leads monolithically formed with a die pad and extending outward from the pad in a first direction. A semiconductor die is attached to the die pad at a first side of the die. A metal clip of a clip frame is attached to a power terminal at a second side of the die. One or more second leads monolithically formed with the metal clip extend outward from the clip in a second direction different than the first direction. A mold compound embeds the die. The first lead(s) and the second lead(s) are exposed at different sides of the mold compound and do not vertically overlap with one another. Within the mold compound, the clip transitions from a first level above the power terminal to a second level in a same plane as the leads.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: November 29, 2022
    Assignee: Infineon Technologies AG
    Inventors: Bun Kian Tay, Mei Yih Goh, Martin Gruber, Josef Hoeglauer, Michael Juerss, Josef Maerz, Thorsten Meyer, Thorsten Scharf, Chee Voon Tan
  • Patent number: 11302613
    Abstract: A method of producing a molded semiconductor package includes: attaching a first load terminal at a first side of a semiconductor die to a leadframe, the semiconductor die having a second load terminal at a second side opposite the first side and a control terminal at the first side or the second side; encapsulating the semiconductor die in a laser-activatable mold compound so that the leadframe is at least partly exposed from the laser-activatable mold compound at a first side of the molded semiconductor package, and the second load terminal is at least partly exposed from the laser-activatable mold compound at a second side of the molded semiconductor package opposite the first side; and laser activating a first region of the laser-activatable mold compound to form a first laser-activated region that is electrically conductive.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: April 12, 2022
    Assignee: Infineon Technologies AG
    Inventors: Chau Fatt Chiang, Swee Kah Lee, Josef Maerz, Thomas Stoek, Chee Voon Tan
  • Patent number: 11211356
    Abstract: A power semiconductor package includes a power semiconductor chip, an electrical connector arranged at a first side of the power semiconductor chip and having a first surface that is coupled to a power electrode of the power semiconductor chip, an encapsulation body at least partially encapsulating the power semiconductor chip and the electrical connector, and an electrical insulation layer arranged at a second surface of the electrical connector opposite the first surface, wherein parts of the encapsulation body and the electrical insulation layer form a coplanar surface of the power semiconductor package.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: December 28, 2021
    Assignee: Infineon Technologies AG
    Inventors: Wee Aun Jason Lim, Paul Armand Asentista Calo, Ting Soon Chin, Chooi Mei Chong, Sanjay Kumar Murugan, Ying Pok Sam, Chee Voon Tan
  • Publication number: 20210366732
    Abstract: A method includes providing a carrier, mounting a plurality of semiconductor dies on the carrier, forming a region of electrically insulating encapsulant material on the carrier that covers each of the semiconductor dies, removing sections of the encapsulant material to form gaps in the region of electrically insulating encapsulant material between each of the semiconductor dies, forming electrically conductive material within the gaps, and singulating the region of electrically insulating encapsulant material along each of the gaps to form a plurality of discrete encapsulant bodies. Each of the packaged semiconductor devices comprises a sidewall-facing terminal that is disposed on a sidewall of the encapsulant body. For each of the packaged semiconductor devices the sidewall-facing terminal is electrically connected to the semiconductor die of the respective packaged semiconductor device.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Inventors: Chau Fatt Chiang, Khay Chwan Andrew Saw, Chee Voon Tan
  • Publication number: 20210313294
    Abstract: A semiconductor package includes a carrier having a recess, a semiconductor die arranged on the carrier such that a first side of the semiconductor die faces the carrier, and a contact clip arranged over a second side of the semiconductor die, opposite the first side. The contact clip includes a lowered part. The lowered part is arranged in the recess.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 7, 2021
    Inventors: Chau Fatt Chiang, Xavier Arokiasamy, Naveendran Chellamuthu, Chee Chiew Chong, Joo Ming Goa, Chee Hong Lee, Muhammat Sanusi Muhammad, Chee Voon Tan, Wee Boon Tay
  • Publication number: 20210057375
    Abstract: A power semiconductor package includes a power semiconductor chip, an electrical connector arranged at a first side of the power semiconductor chip and having a first surface that is coupled to a power electrode of the power semiconductor chip, an encapsulation body at least partially encapsulating the power semiconductor chip and the electrical connector, and an electrical insulation layer arranged at a second surface of the electrical connector opposite the first surface, wherein parts of the encapsulation body and the electrical insulation layer form a coplanar surface of the power semiconductor package.
    Type: Application
    Filed: August 12, 2020
    Publication date: February 25, 2021
    Inventors: Wee Aun Jason Lim, Paul Armand Asentista Calo, Ting Soon Chin, Chooi Mei Chong, Sanjay Kumar Murugan, Ying Pok Sam, Chee Voon Tan
  • Publication number: 20210020550
    Abstract: A method of producing a molded semiconductor package includes: attaching a first load terminal at a first side of a semiconductor die to a leadframe, the semiconductor die having a second load terminal at a second side opposite the first side and a control terminal at the first side or the second side; encapsulating the semiconductor die in a laser-activatable mold compound so that the leadframe is at least partly exposed from the laser-activatable mold compound at a first side of the molded semiconductor package, and the second load terminal is at least partly exposed from the laser-activatable mold compound at a second side of the molded semiconductor package opposite the first side; and laser activating a first region of the laser-activatable mold compound to form a first laser-activated region that is electrically conductive.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 21, 2021
    Inventors: Chau Fatt Chiang, Swee Kah Lee, Josef Maerz, Thomas Stoek, Chee Voon Tan