Thermal via for 3D integrated circuits structures

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United States of America Patent

PATENT NO 8933540
SERIAL NO

13780033

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Abstract

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A three dimensional integrated circuit (3D-IC) structure, method of manufacturing the same and design structure thereof are provided. The 3D-IC structure includes two chips having a dielectric layer, through substrate vias (TSVs) and pads formed on the dielectric layer. The dielectric layer is formed on a bottom surface of each chip. Pads are electrically connected to the corresponding TSVs. The chips are disposed vertically adjacent to each other. The bottom surface of a second chip faces the bottom surface of a first chip. The pads of the first chip are electrically connected to the pads of the second chip through a plurality of conductive bumps. The 3D-IC structure further includes a thermal via structure vertically disposed between the first chip and the second chip and laterally disposed between the corresponding conductive bumps. The thermal via structure has an upper portion and a lower portion.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daubenspeck, Timothy H Colchester, US 147 1759
Gambino, Jeffrey P Westford, US 531 7344
Hauser, Michael J Bolton, US 14 55
Muzzy, Christopher D Burlington, US 130 1011
Sauter, Wolfgang Richmond, US 189 1603
Sullivan, Timothy D Underhill, US 138 1681

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