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MICROELECTRONICS PACKAGE WITH SELF-ALIGNED STACKED-DIE ASSEMBLY

  • US 20190074263A1
  • Filed: 09/05/2017
  • Published: 03/07/2019
  • Est. Priority Date: 09/05/2017
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a module substrate having an upper surface;

    a first thinned flip chip die comprising a first device layer, a first dielectric layer and a plurality of first interconnects, wherein;

    the first device layer includes a first coupling component embedded therein;

    the first dielectric layer resides over an upper surface of the first device layer; and

    the plurality of first interconnects extends from a lower surface of the first device layer and is coupled to the upper surface of the module substrate;

    a first mold compound residing over the upper surface of the module substrate, surrounding the first thinned flip chip die, and extending above an upper surface of the first thinned flip chip die to define a first opening within the first mold compound and vertically above the first thinned flip chip die, wherein;

    the first mold compound does not reside over the first thinned flip chip die and provides vertical walls of the first opening, which are aligned with edges of the first thinned flip chip die in both X-direction and Y-direction;

    the X-direction and the Y-direction are parallel to the upper surface of the module substrate, and the X-direction and the Y-direction are orthogonal to each other; and

    the upper surface of the first thinned flip chip die is exposed at a bottom of the first opening; and

    a second die stacked with the first thinned flip chip die and in the first opening, wherein;

    the second die comprises a second coupling component embedded therein; and

    the second coupling component is mirrored to the first coupling component.

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