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).
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Publication number: 20250140729Abstract: 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: ApplicationFiled: October 25, 2024Publication date: May 1, 2025Inventors: Chee Hong Lee, Kok Yau Chua, Chai Chee Lee, Chee Voon Tan, Naveendran Chellamuthu
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Publication number: 20250140734Abstract: 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: ApplicationFiled: October 17, 2024Publication date: May 1, 2025Inventors: 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
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Publication number: 20250096082Abstract: 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: ApplicationFiled: September 18, 2023Publication date: March 20, 2025Inventors: Mei Yih Goh, Chee Voon Tan, Sung Hoe Yeong, Michael Stadler
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Publication number: 20250062273Abstract: 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: ApplicationFiled: August 6, 2024Publication date: February 20, 2025Inventors: Chee Yang Ng, Chee Hong Lee, Kok Yau Chua, Shih Kien Long, Chee Voon Tan, Jayaganasan Narayanasamy
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Publication number: 20250054842Abstract: 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: ApplicationFiled: August 1, 2024Publication date: February 13, 2025Applicant: Infineon Technologies AGInventors: Rowel TABAJONDA, Michael STADLER, Aira Lourdes Baring VILLAMOR, Mei Yih GOH, Juliane JUNESCH, Chee Voon TAN, Mei Qi TAY
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Publication number: 20240006260Abstract: 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: ApplicationFiled: May 8, 2023Publication date: January 4, 2024Applicant: Infineon Technologies AGInventors: Chee Hong LEE, Soon Lock GOH, Chai Chee LEE, Swee Kah LEE, Luay Kuan ONG, Chee Voon TAN
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Publication number: 20230282553Abstract: 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: ApplicationFiled: May 11, 2023Publication date: September 7, 2023Inventors: Thomas Stoek, Frank Daeche, Chee Voon Tan
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Publication number: 20230230903Abstract: 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: ApplicationFiled: December 21, 2022Publication date: July 20, 2023Applicant: Infineon Technologies AGInventors: 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
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Patent number: 11699640Abstract: 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: GrantFiled: June 21, 2021Date of Patent: July 11, 2023Assignee: Infineon Technologies AGInventors: Thomas Stoek, Frank Daeche, Chee Voon Tan
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Patent number: 11587800Abstract: 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: GrantFiled: May 22, 2020Date of Patent: February 21, 2023Assignee: Infineon Technologies AGInventors: Chau Fatt Chiang, Khay Chwan Andrew Saw, Chee Voon Tan
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Publication number: 20230051100Abstract: 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: ApplicationFiled: November 3, 2022Publication date: February 16, 2023Inventors: Bun Kian Tay, Mei Yih Goh, Martin Gruber, Josef Hoeglauer, Michael Juerss, Josef Maerz, Thorsten Meyer, Thorsten Scharf, Chee Voon Tan
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Publication number: 20230049564Abstract: 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: ApplicationFiled: October 26, 2022Publication date: February 16, 2023Inventors: Chau Fatt Chiang, Khay Chwan Andrew Saw, Chee Voon Tan
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Publication number: 20220406692Abstract: 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: ApplicationFiled: June 21, 2021Publication date: December 22, 2022Inventors: Thomas Stoek, Frank Daeche, Chee Voon Tan
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Patent number: 11515244Abstract: 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: GrantFiled: January 21, 2020Date of Patent: November 29, 2022Assignee: Infineon Technologies AGInventors: Bun Kian Tay, Mei Yih Goh, Martin Gruber, Josef Hoeglauer, Michael Juerss, Josef Maerz, Thorsten Meyer, Thorsten Scharf, Chee Voon Tan
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Patent number: 11302613Abstract: 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: GrantFiled: July 9, 2020Date of Patent: April 12, 2022Assignee: Infineon Technologies AGInventors: Chau Fatt Chiang, Swee Kah Lee, Josef Maerz, Thomas Stoek, Chee Voon Tan
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Patent number: 11211356Abstract: 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: GrantFiled: August 12, 2020Date of Patent: December 28, 2021Assignee: Infineon Technologies AGInventors: Wee Aun Jason Lim, Paul Armand Asentista Calo, Ting Soon Chin, Chooi Mei Chong, Sanjay Kumar Murugan, Ying Pok Sam, Chee Voon Tan
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Publication number: 20210366732Abstract: 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: ApplicationFiled: May 22, 2020Publication date: November 25, 2021Inventors: Chau Fatt Chiang, Khay Chwan Andrew Saw, Chee Voon Tan
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Publication number: 20210313294Abstract: 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: ApplicationFiled: March 24, 2021Publication date: October 7, 2021Inventors: 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
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Publication number: 20210057375Abstract: 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: ApplicationFiled: August 12, 2020Publication date: February 25, 2021Inventors: Wee Aun Jason Lim, Paul Armand Asentista Calo, Ting Soon Chin, Chooi Mei Chong, Sanjay Kumar Murugan, Ying Pok Sam, Chee Voon Tan
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Publication number: 20210020550Abstract: 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: ApplicationFiled: July 9, 2020Publication date: January 21, 2021Inventors: Chau Fatt Chiang, Swee Kah Lee, Josef Maerz, Thomas Stoek, Chee Voon Tan