Multi-layer substrates and fabrication processes
First Claim
Patent Images
1. A microelectronic component comprising:
- (a) first and second substrates, each such substrate including at least one dielectric layer and electrically conductive features including at least one of;
(i) one or more traces extending in one or more horizontal directions along the at least one dielectric layer; and
(ii) one or more electrically conductive potential planes extending in horizontal directions along the at least one dielectric layer;
(b) a first intermediate dielectric layer disposed between said first and second substrates;
(c) a first set of elongated, electrically conductive leads affixed to said first and second substrates, said leads extending through said first intermediate layer and electrically connected between said conductive features of said first and second substrates.
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Abstract
Multi-layer components such as circuit panels are fabricated by connecting conductive features such as traces one two or more superposed substrates using leads extending through an intermediate dielectric layer. The leads can be closely spaced to provide a high density vertical interconnection, and can be selectively connected to provide customization of the structure.
97 Citations
26 Claims
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1. A microelectronic component comprising:
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(a) first and second substrates, each such substrate including at least one dielectric layer and electrically conductive features including at least one of;
(i) one or more traces extending in one or more horizontal directions along the at least one dielectric layer; and
(ii) one or more electrically conductive potential planes extending in horizontal directions along the at least one dielectric layer;
(b) a first intermediate dielectric layer disposed between said first and second substrates;
(c) a first set of elongated, electrically conductive leads affixed to said first and second substrates, said leads extending through said first intermediate layer and electrically connected between said conductive features of said first and second substrates. - View Dependent Claims (2, 3, 4, 5, 9, 10, 11, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23)
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6. A microelectronic component comprising:
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(a) first and second substrates, each such substrate including at least one dielectric layer and electrically conductive features including at least one of;
(i) one or more traces extending in one or more horizontal directions along the at least one dielectric layer; and
(ii) one or more electrically conductive potential planes extending in horizontal directions along the at least one dielectric layer;
(b) a first intermediate dielectric layer disposed between said first and second substrates;
(c) a first set of elongated, electrically conductive leads extending through said first intermediate layer and electrically connected between said conductive features of said first and second substrates wherein said electrically conductive features on at least one of said substrates include traces extending in one or more horizontal directions and wherein said traces of said first substrate include a layer of traces nearest said intermediate layer, at least some of said traces in said nearest layer adjacent said leads extending generally in an x horizontal direction, said leads including first portions projecting from said first substrate and extending generally in said x horizontal direction and sloping in a vertical direction toward said second substrate. - View Dependent Claims (7, 8)
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12. A microelectronic component comprising:
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(a) first and second substrates, each such substrate including at least one dielectric layer and electrically conductive features including at least one of;
(i) one or more traces extending in one or more horizontal directions along the at least one dielectric layer; and
(ii) one or more electrically conductive potential planes extending in horizontal directions along the at least one dielectric layer;
(b) a first intermediate dielectric layer disposed between said first and second substrates;
(c) a first set of elongated, electrically conductive leads extending through said first intermediate layer and electrically connected between said conductive features of said first and second substrates, wherein at least one of said first and second substrates includes a cover dielectric layer overlying the conductive features and disposed between the conductive features and the intermediate dielectric layer, said cover dielectric layer having openings therein, said leads being connected to such conductive features through said openings.
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15. A microelectronic component comprising:
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(a) first and second substrates, each such substrate including at least one dielectric layer and electrically conductive features including at least one of;
(i) one or more traces extending in one or more horizontal directions along the at least one dielectric layer; and
(ii) one or more electrically conductive potential planes extending in horizontal directions along the at least one dielectric layer;
(b) a first intermediate dielectric layer disposed between said first and second substrates;
(c) a first set of elongated, electrically conductive leads extending through said first intermediate layer and electrically connected between said conductive features of said first and second substrates wherein at least some of said leads are multiconductor leads, each such multiconductor lead including two or more electrical conductors and a dielectric disposed between such conductors, at least one of said substrates having terminals exposed on a surface thereof facing away from the other said substrate, and wherein said terminals include pairs of terminals, the terminals of each such pair being disposed adjacent to one another, at least some of said pairs of terminals being connected to said multiconductor leads so that one terminal of each such pair is connected to one conductor of a lead whereas another terminal of each such pair is connected to another conductor of the same lead.
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24. A microelectronic component comprising:
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(a) first and second substrates, each such substrate including at least one dielectric layer and electrically conductive features including at least one of;
(i) one or more traces extending in one or more horizontal directions along the at least one dielectric layer; and
(ii) one or more electrically conductive potential planes extending in horizontal directions along the at least one dielectric layer;
(b) a first intermediate dielectric layer disposed between said first and second substrates;
(c) a first set of elongated, electrically conductive leads extending through said first intermediate layer and electrically connected between said conductive features of said first and second substrates;
further comprising a third substrate disposed between said second substrate and said first intermediate layer, a second intermediate layer disposed between said second substrate and said third substrate, and a second set of leads extending between said third substrate and second substrate and through said second intermediate layer, at least some of said leads of said first set being connected to said leads of said second set, whereby at least some of said leads of said first set are connected to conductive features of said second substrate by said leads of said second set. - View Dependent Claims (25)
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26. A substrate for use in making a multi-layer circuit panel, said substrate including:
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(a) a body having a lead-bearing surface;
(b) a plurality of leads extending along said lead-bearing surface, said leads having fixed ends attached to said body and free ends movable with respect to said body, said leads extending generally in a first horizontal direction; and
(c) a plurality of electrically-conductive traces including a nearest layer of traces disposed on or adjacent to said lead-bearing surface, at least some of the traces in said nearest layer in the vicinity of said leads extending generally in said first horizontal direction.
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Specification