Semiconductor chip including back-side conductive layer

    公开(公告)号:US11328955B2

    公开(公告)日:2022-05-10

    申请号:US16938206

    申请日:2020-07-24

    Abstract: A substrate wafer arrangement includes a substrate layer having a first main side and a second main side opposite the first main side, the first main side being a front-side and the second main side being a back-side, the substrate layer further having a plurality of semiconductor chips. A polymer structure arranged between the plurality of semiconductor chips extends at least from the front-side of the substrate layer to the back-side of the substrate layer and protrudes from a back-side surface of the substrate layer. The polymer structure separates a plurality of insular islands of conductive material, each insular island corresponding to a respective semiconductor chip of the plurality of semiconductor chips. Semiconductor devices produced from the substrate wafer arrangement are also described.

    Semiconductor chip including self-aligned, back-side conductive layer and method for making the same

    公开(公告)号:US10784161B2

    公开(公告)日:2020-09-22

    申请号:US16144169

    申请日:2018-09-27

    Abstract: A method for manufacturing a semiconductor device includes: partially dicing a substrate wafer arrangement having a plurality of semiconductor chips, wherein the partial dicing forms trenches around the semiconductor chips on a front-side of the substrate wafer arrangement, the depth being greater than a target thickness of a semiconductor chip; filling the trenches with a polymer material to form a polymer structure; first thinning of the back-side to expose portions of the polymer structure; forming a conductive layer on the back-side of the substrate wafer arrangement so that the exposed portions of the polymer structure are covered; second thinning of the back-side to form insular islands of conductive material, the insular islands separated from each other by the polymer structure, each insular island corresponding to a respective one of the semiconductor chips; and dicing the substrate wafer arrangement along the polymer structure.

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