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Stackable ceramic FBGA for high thermal applications

  • US 7,285,442 B2
  • Filed: 02/22/2005
  • Issued: 10/23/2007
  • Est. Priority Date: 06/30/1998
  • Status: Expired due to Term
First Claim
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1. A method for forming an assembly comprising:

  • obtaining a first carrier having a plurality of sides and a cavity, a frustoconical surface on a portion of each side of the plurality of sides for nesting with a second assembly, a lip on a portion of a bottom surface of each side of the plurality of sides for nesting with a third assembly, and a plurality of circuits located in a portion of the cavity;

    placing a semiconductor device having a plurality of bond pads located within the cavity of the first carrier;

    forming a first connector between at least one circuit of the plurality of circuits located in the portion of the cavity of the first carrier and at least one bond pad of the plurality of bond pads of the semiconductor device;

    filling a portion of the cavity in the first carrier using an encapsulant material; and

    placing a second connector material located in the first carrier.

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