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公开(公告)号:US20240055376A1
公开(公告)日:2024-02-15
申请号:US18483977
申请日:2023-10-10
Applicant: Infineon Technologies AG
Inventor: Michael Stadler , Paul Armand Asentista Calo
IPC: H01L23/00
CPC classification number: H01L24/05 , H01L24/13 , H01L24/81 , H01L2224/02245 , H01L2924/13091 , H01L2224/0401 , H01L2224/13026 , H01L2224/81024 , H01L2224/81815 , H01L2224/02255
Abstract: A method of soldering a semiconductor chip to a chip carrier includes arranging a solder deposit including solder and solder flux between a contact portion of the carrier and a contact portion of a chip pad arranged at a surface of the semiconductor chip. Arranging a dielectric layer at the surface of the semiconductor chip. The dielectric layer includes an opening within which the contact portion of the chip pad is exposed. The dielectric layer further includes arranging a solder flux outgassing trench separate from the opening and intersecting with the solder deposit. The method further includes melting the solder deposit which causes liquid solder to be moved over the solder flux outgassing trench for extraction of flux gas.
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公开(公告)号:US11769748B2
公开(公告)日:2023-09-26
申请号:US18073090
申请日:2022-12-01
Applicant: Infineon Technologies AG
Inventor: Thomas Stoek , Michael Stadler , Mohd Hasrul Zulkifli
IPC: H01L23/00 , H01L23/495
CPC classification number: H01L24/37 , H01L23/49524 , H01L24/84 , H01L2224/37005 , H01L2224/84815
Abstract: 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.
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公开(公告)号:US11545459B2
公开(公告)日:2023-01-03
申请号:US17155241
申请日:2021-01-22
Applicant: Infineon Technologies AG
Inventor: Thomas Stoek , Michael Stadler , Mohd Hasrul Zulkifli
IPC: H01L23/00 , H01L23/495
Abstract: 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.
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公开(公告)号:US20220216139A1
公开(公告)日:2022-07-07
申请号:US17704672
申请日:2022-03-25
Applicant: Infineon Technologies AG
Inventor: Michael Stadler
IPC: H01L23/528 , H01L25/065 , H01L23/00 , H01L23/532
Abstract: A method for producing a semiconductor arrangement includes applying a metallization layer on an upper main side of a lower semiconductor chip, structuring the metallization layer, and fastening an upper semiconductor chip on the upper main side of the lower semiconductor chip by a bonding material, wherein the metallization layer is structured such that the metallization layer has an increased roughness along a contour of the upper semiconductor chip in comparison with the rest of the metallization layer, wherein wetting of the upper main side of the lower semiconductor chip by the bonding material is limited by a structure in the metallization layer to a region below the upper semiconductor chip.
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公开(公告)号:US20250096082A1
公开(公告)日:2025-03-20
申请号:US18369443
申请日:2023-09-18
Applicant: Infineon Technologies AG
Inventor: Mei Yih Goh , Chee Voon Tan , Sung Hoe Yeong , Michael Stadler
IPC: H01L23/495 , H01L23/00 , H01L25/07
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.
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公开(公告)号:US11990405B2
公开(公告)日:2024-05-21
申请号:US17704672
申请日:2022-03-25
Applicant: Infineon Technologies AG
Inventor: Michael Stadler
IPC: H01L23/528 , H01L23/00 , H01L23/532 , H01L25/065
CPC classification number: H01L23/528 , H01L23/53214 , H01L23/53228 , H01L24/08 , H01L24/32 , H01L25/0657 , H01L2224/04026 , H01L2224/0807 , H01L2224/32145
Abstract: A method for producing a semiconductor arrangement includes applying a metallization layer on an upper main side of a lower semiconductor chip, structuring the metallization layer, and fastening an upper semiconductor chip on the upper main side of the lower semiconductor chip by a bonding material, wherein the metallization layer is structured such that the metallization layer has an increased roughness along a contour of the upper semiconductor chip in comparison with the rest of the metallization layer, wherein wetting of the upper main side of the lower semiconductor chip by the bonding material is limited by a structure in the metallization layer to a region below the upper semiconductor chip.
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公开(公告)号:US11830835B2
公开(公告)日:2023-11-28
申请号:US17404031
申请日:2021-08-17
Applicant: Infineon Technologies AG
Inventor: Michael Stadler , Paul Armand Asentista Calo
IPC: H01L23/00
CPC classification number: H01L24/05 , H01L24/13 , H01L24/81 , H01L2224/02245 , H01L2224/02255 , H01L2224/0401 , H01L2224/13026 , H01L2224/81024 , H01L2224/81815 , H01L2924/13091
Abstract: A semiconductor chip includes a chip pad arranged at a surface of the semiconductor chip. A dielectric layer is arranged at the surface of the semiconductor chip. The dielectric layer has an opening within which a contact portion of the chip pad is exposed, the opening having at least one straight side. The dielectric layer includes a solder flux outgassing trench arranged separate from and in the vicinity of the at least one straight side of the opening and that extends laterally beyond sides of the opening adjoining the straight side.
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公开(公告)号:US11088105B2
公开(公告)日:2021-08-10
申请号:US16695866
申请日:2019-11-26
Applicant: Infineon Technologies AG
Inventor: Thomas Bemmerl , Chooi Mei Chong , Edward Myers , Michael Stadler
IPC: H01L23/00
Abstract: A semiconductor device includes: a carrier having a die pad and a contact; a semiconductor die having opposing first and second main sides and being attached to the die pad by a first solder joint such that the second main side faces the die pad; and a contact clip having a first contact region and a second contact region. The first contact is attached to the first main side by a second solder joint. The second contact region is attached to the contact by a third solder joint. The first contact region has a convex shape facing towards the first main side such that a distance between the first main side and the first contact region increases from a base of the convex shape towards an edge of the first contact region. The base runs along a line that is substantially perpendicular to a longitudinal axis of the contact clip.
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公开(公告)号:US20200185301A1
公开(公告)日:2020-06-11
申请号:US16701251
申请日:2019-12-03
Applicant: Infineon Technologies AG
Inventor: Thomas Stoek , Michael Stadler
IPC: H01L23/367 , H01L21/56 , H01L21/48 , H01L23/31 , H01L23/373
Abstract: 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.
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公开(公告)号:US20200051880A1
公开(公告)日:2020-02-13
申请号:US16519706
申请日:2019-07-23
Applicant: Infineon Technologies AG
Inventor: Thomas Bemmerl , Michael Stadler
Abstract: A semiconductor device is disclosed. In one example, the semiconductor device comprises a die carrier comprising an X-shaped recess on a first surface of the die carrier; a semiconductor die arranged over the first surface of the die carrier and at least partly covering the X-shaped recess; and a coupling agent attaching the semiconductor die to the die carrier, wherein the coupling agent is at least partially arranged in the X-shaped recess. Each of the four arms of the X-shaped recess points towards a corner of the semiconductor die and extends over an outline of the semiconductor die in an orthogonal projection onto the first surface of the die carrier.
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