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Hermetically packaged HDI electronic system

  • US 5,315,486 A
  • Filed: 06/07/1993
  • Issued: 05/24/1994
  • Est. Priority Date: 12/16/1991
  • Status: Expired due to Fees
First Claim
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1. A packaged electronic system comprising:

  • a ceramic substrate having a component-supporting surface, and at least one electronic component disposed on said component-supporting surface, said component having contact pads thereon;

    a seal ring disposed on said component-supporting surface encircling said at least one electronic component;

    a set of inner contact points on said component-supporting surface located inside said seal ring, and a corresponding set of outer contact points on said component-supporting surface located outside said seal ring;

    a set of electrical conductors at least in part buried in said ceramic substrate and extending between said inner and outer sets of contact points;

    electrical connections between at least some of said components contact pads and said inner contact points, comprising a multilayer interconnect structure including interleaved layers of dielectric material and conductive material disposed over portions of said substrate, over said at least one electronic component and over said inner set of contact points; and

    a package lid attached to said seal ring and enclosing said at least one electronic component and said electrical connections.

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