Additively manufactured structures for heat dissipation from integrated circuit devices

    公开(公告)号:US12080620B2

    公开(公告)日:2024-09-03

    申请号:US16912432

    申请日:2020-06-25

    CPC classification number: H01L23/3735 B33Y70/00 B33Y80/00

    Abstract: An integrated circuit assembly may be fabricated to include an integrated circuit device having a backside surface and a backside metallization layer on the backside surface of the integrated circuit device, wherein the backside metallization layer comprises a bond layer on the backside surface of the integrated circuit device, a high thermal conductivity layer on the bond layer, and a cap layer on the high thermal conductivity layer. The bond layer may be a layered stack comprising an adhesion promotion layer on the backside of the integrated circuit device and at one least metal layer. The high thermal conductivity layer may be an additively deposited material having a thermal conductivity greater than silicon, such as copper, silver, aluminum, diamond, silicon carbide, boron nitride, aluminum nitride, and combinations thereof.

    INTEGRATED CIRCUIT HEAT SPREADER INCLUDING SEALANT INTERFACE MATERIAL

    公开(公告)号:US20210398871A1

    公开(公告)日:2021-12-23

    申请号:US16905731

    申请日:2020-06-18

    Abstract: A hybrid integrated heat spreader suitable for an integrated circuit (IC) die package. The hybrid integrated heat spreader includes a top sheet material and a sealant interface material located where the heat spreader is to contact an assembly substrate. The sealant interface material may offer greater adhesion to a sealant employed between the interface material and the package substrate. In some examples, the sealant interface material has a greater surface roughness and/or a different composition than a surface of the integrated heat spreader that is in close thermal contact with an IC die through a thermal interface material. With the sealant interface material improving adhesion, the sealant may have a higher bulk modulus, enabling the integrated heat spreader to impart greater stiffness to the IC die package assembly.

Patent Agency Ranking