Patents by Inventor Thomas Stoek
Thomas Stoek 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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Patent number: 12046540Abstract: An integrated circuit package includes a leadframe with a die pad and a lead. A semiconductor die is attached to a top surface of the die pad. A clip has a lead contact area with a surface pattern on a bottom surface of the clip that is proximate to a first end of the clip. A portion of the surface pattern is attached to a top surface of a terminal pad of the lead. The clip includes a die contact area on the bottom surface of the clip that is proximate to a second end of the clip. The die contact area of the clip is attached to a top contact on the semiconductor die. The surface pattern has a length in a longitudinal direction of the clip in a direction parallel with a plane of the bottom surface of the die pad that is greater than a length of the top surface of the terminal pad of the lead.Type: GrantFiled: December 10, 2020Date of Patent: July 23, 2024Assignee: Infineon Technologies AGInventors: Christian Feuerbaum, Thomas Stoek
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Patent number: 11901257Abstract: A semiconductor package includes a semiconductor chip, an encapsulation body encapsulating the semiconductor chip, and a metal sheet having a first sheet surface and an opposite second sheet surface. The first sheet surface is exposed at the encapsulation body. The semiconductor chip is arranged at the second sheet surface. The first sheet surface has a pattern having first subdivisions having a first average roughness and second subdivisions having a second average roughness. The first average roughness is greater than the second average roughness.Type: GrantFiled: December 3, 2019Date of Patent: February 13, 2024Assignee: Infineon Technologies AGInventors: Thomas Stoek, Michael Stadler
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Patent number: 11862541Abstract: A molded semiconductor package includes a mold compound, a plurality of leads each having a first end embedded in the mold compound and a second end protruding from a side face of the mold compound, and a semiconductor die embedded in the mold compound and electrically connected, within the mold compound, to the plurality of leads. The second end of each lead of the plurality of leads has a bottom surface facing in a same direction as a bottom main surface of the mold compound. Each lead of the plurality of leads has a negative standoff relative to the bottom main surface of the mold compound.Type: GrantFiled: July 28, 2021Date of Patent: January 2, 2024Assignee: Infineon Technologies AGInventors: Thomas Stoek, Dirk Ahlers, Stefan Macheiner
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Patent number: 11769748Abstract: A semiconductor device includes a semiconductor die attached to a substrate and a metal clip attached to a side of the semiconductor die facing away from the substrate by a soldered joint. The metal clip has a plurality of slots dimensioned so as to take up at least 10% of a solder paste that reflowed to form the soldered joint. Corresponding methods of production are also described.Type: GrantFiled: December 1, 2022Date of Patent: September 26, 2023Assignee: Infineon Technologies AGInventors: Thomas Stoek, Michael Stadler, Mohd Hasrul Zulkifli
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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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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: 11621204Abstract: A semiconductor module includes: a dual-gauge leadframe having thicker and thinner parts, part of the thinner part forming a high voltage lead; a semiconductor die attached to the thicker part; and a molding compound (MC) encapsulating the die. The thicker leadframe part is disposed at a bottom side of the MC. A side face of the MC has a stepped region between the high voltage lead and thicker leadframe part. A first generally vertical part of the stepped region extends from the high voltage lead to the generally horizontal part, a generally horizontal part of the stepped region extends to the second generally vertical part, and a second generally vertical part of the stepped region extends to the bottom side of the MC. A linear dimension of the generally horizontal part as measured from the first generally vertical part to the second generally vertical part is at least 4.5 mm.Type: GrantFiled: February 17, 2021Date of Patent: April 4, 2023Assignee: Infineon Technologies AGInventors: Oliver Markus Kreiter, Ludwig Busch, Angel Enverga, Mei Fen Hiew, Tian See Hoe, Elvis Keli, Kean Ming Koe, Sanjay Kumar Murugan, Michael Niendorf, Ivan Nikitin, Bernhard Stiller, Thomas Stoek, Ke Yan Tean
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Publication number: 20230094794Abstract: A semiconductor device includes a semiconductor die attached to a substrate and a metal clip attached to a side of the semiconductor die facing away from the substrate by a soldered joint. The metal clip has a plurality of slots dimensioned so as to take up at least 10% of a solder paste that reflowed to form the soldered joint. Corresponding methods of production are also described.Type: ApplicationFiled: December 1, 2022Publication date: March 30, 2023Inventors: Thomas Stoek, Michael Stadler, Mohd Hasrul Zulkifli
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Patent number: 11545459Abstract: A semiconductor device includes a semiconductor die attached to a substrate and a metal clip attached to a side of the semiconductor die facing away from the substrate by a soldered joint. The metal clip has a plurality of slots dimensioned so as to take up at least 10% of a solder paste reflowed to form the soldered joint. Corresponding methods of production are also described.Type: GrantFiled: January 22, 2021Date of Patent: January 3, 2023Assignee: Infineon Technologies AGInventors: Thomas Stoek, Michael Stadler, Mohd Hasrul Zulkifli
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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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Publication number: 20220262693Abstract: A semiconductor module includes: a dual-gauge leadframe having thicker and thinner parts, part of the thinner part forming a high voltage lead; a semiconductor die attached to the thicker part; and a molding compound (MC) encapsulating the die. The thicker leadframe part is disposed at a bottom side of the MC. A side face of the MC has a stepped region between the high voltage lead and thicker leadframe part. A first generally vertical part of the stepped region extends from the high voltage lead to the generally horizontal part, a generally horizontal part of the stepped region extends to the second generally vertical part, and a second generally vertical part of the stepped region extends to the bottom side of the MC. A linear dimension of the generally horizontal part as measured from the first generally vertical part to the second generally vertical part is at least 4.5 mm.Type: ApplicationFiled: February 17, 2021Publication date: August 18, 2022Inventors: Oliver Markus Kreiter, Ludwig Busch, Angel Enverga, Mei Fen Hiew, Tian See Hoe, Elvis Keli, Kean Ming Koe, Sanjay Kumar Murugan, Michael Niendorf, Ivan Nikitin, Bernhard Stiller, Thomas Stoek, Ke Yan Tean
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Publication number: 20220238475Abstract: A semiconductor device includes a semiconductor die attached to a substrate and a metal clip attached to a side of the semiconductor die facing away from the substrate by a soldered joint. The metal clip has a plurality of slots dimensioned so as to take up at least 10% of a solder paste reflowed to form the soldered joint. Corresponding methods of production are also described.Type: ApplicationFiled: January 22, 2021Publication date: July 28, 2022Inventors: Thomas Stoek, Michael Stadler, Mohd Hasrul Zulkifli
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Publication number: 20220189855Abstract: An integrated circuit package includes a leadframe with a die pad and a lead. A semiconductor die is attached to a top surface of the die pad. A clip has a lead contact area with a surface pattern on a bottom surface of the clip that is proximate to a first end of the clip. A portion of the surface pattern is attached to a top surface of a terminal pad of the lead. The clip includes a die contact area on the bottom surface of the clip that is proximate to a second end of the clip. The die contact area of the clip is attached to a top contact on the semiconductor die. The surface pattern has a length in a longitudinal direction of the clip in a direction parallel with a plane of the bottom surface of the die pad that is greater than a length of the top surface of the terminal pad of the lead.Type: ApplicationFiled: December 10, 2020Publication date: June 16, 2022Applicant: Infineon Technologies AGInventors: Christian FEUERBAUM, Thomas STOEK
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Publication number: 20220115245Abstract: A method for fabricating a power semiconductor package includes: providing a leadframe having a die pad and a frame, wherein the die pad is connected to the frame by at least one tie bar; attaching a semiconductor die to the die pad; laser cutting through the at least one tie bar, thereby forming a cut surface; and after the laser cutting, molding over the die pad and the semiconductor die, wherein the cut surface is completely covered by molding compound.Type: ApplicationFiled: October 4, 2021Publication date: April 14, 2022Inventors: Jayaganasan Narayanasamy, Syahir Abd Hamid, Meng How Chong, Michael Reyes Godoy, Chee Ming Lam, Adbul Rahman Mohamed, Sanjay Kumar Murugan, Thomas Stoek
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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: 11183445Abstract: A semiconductor arrangement comprises a leadframe comprising at least a first and a second carrier, the first and second carriers being arranged laterally besides each other, at least a first and a second semiconductor die, the first semiconductor die being arranged on and electrically coupled to the first carrier and the second semiconductor die being arranged on and electrically coupled to the second carrier, and an interconnection configured to mechanically fix the first carrier to the second carrier and to electrically insulate the first carrier from the second carrier, wherein the first and second semiconductor dies are at least partially exposed to the outside.Type: GrantFiled: January 29, 2020Date of Patent: November 23, 2021Assignee: Infineon Technologies AGInventors: Dirk Ahlers, Frank Daeche, Daniel Schleisser, Thomas Stoek
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Publication number: 20210358836Abstract: A molded semiconductor package includes a mold compound, a plurality of leads each having a first end embedded in the mold compound and a second end protruding from a side face of the mold compound, and a semiconductor die embedded in the mold compound and electrically connected, within the mold compound, to the plurality of leads. The second end of each lead of the plurality of leads has a bottom surface facing in a same direction as a bottom main surface of the mold compound. Each lead of the plurality of leads has a negative standoff relative to the bottom main surface of the mold compound.Type: ApplicationFiled: July 28, 2021Publication date: November 18, 2021Inventors: Thomas Stoek, Dirk Ahlers, Stefan Macheiner
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Patent number: 11101201Abstract: A molded semiconductor package includes a mold compound, a plurality of leads each having a first end embedded in the mold compound and a second end protruding from a side face of the mold compound, and a semiconductor die embedded in the mold compound and electrically connected, within the mold compound, to the plurality of leads. The second end of each lead of the plurality of leads has a bottom surface facing in a same direction as a bottom main surface of the mold compound. The bottom surface of each lead of the plurality of leads is coplanar with the bottom main surface of the mold compound or disposed in a plane above the bottom main surface of the mold compound so that no lead of the plurality of leads extends below the bottom main surface of the mold compound.Type: GrantFiled: March 1, 2019Date of Patent: August 24, 2021Assignee: Infineon Technologies AGInventors: Thomas Stoek, Dirk Ahlers, Stefan Macheiner
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Patent number: 10971436Abstract: An example multi-branch terminal for an integrated circuit (IC) package is described herein. An example multi-branch terminal of an integrated circuit (IC), may include a first branch that may include an active bonding with a chip of the IC, wherein the active bonding may include a wire bonded to the chip of the IC; and a second branch that may include a passive bonding with the chip of the IC, wherein the passive bonding may include a capacitor bonded to the second branch and a first terminal of the IC.Type: GrantFiled: June 13, 2019Date of Patent: April 6, 2021Assignee: Infineon Technologies AGInventors: Thomas Stoek, Chii Shang Hong, Chiew Li Tai, Edmund Sales Cabatbat
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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