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Pin attachment

  • US 9,324,681 B2
  • Filed: 09/26/2014
  • Issued: 04/26/2016
  • Est. Priority Date: 12/13/2010
  • Status: Active Grant
First Claim
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1. A method for making a microelectronic package, comprising:

  • providing a microelectronic assembly including a first substrate having a first surface with a plurality of electrically conductive elements exposed thereon, a carrier having a second surface spaced apart from the first surface of the substrate, and a plurality of substantially rigid metal elements extending from the carrier and joined to the electrically conductive elements, the first surface of the first substrate including first and second regions, the electrically conductive elements being exposed at the first surface within the first region;

    injecting a dielectric material between the first and second surfaces and around the plurality of substantially rigid metal elements to form a molded dielectric layer;

    removing the carrier from the microelectronic assembly, thereby exposing contact surfaces of respective ones of the plurality of substantially rigid metal elements remote from the plurality of electrically conductive elements; and

    affixing a microelectronic element to the first substrate and electronically connecting the microelectronic element to at least some of the electrically conductive elements after the step of removing the carrier,wherein the microelectronic element is attached on the first surface within the second region, and wherein the molded dielectric layer is formed in a first dielectric layer portion and a second dielectric layer portion by the steps of;

    forming the first dielectric layer portion over the first region of the first surface prior to the step of attaching the microelectronic element; and

    forming the second dielectric layer portion over the second region of the first surface after the step of attaching the microelectronic element.

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