Microelectronic packages and methods therefor
First Claim
1. A method of making a microelectronic assembly comprising:
- providing a microelectronic package including a substrate, a microelectronic element overlying said substrate and at least two conductive elements projecting from a surface of said substrate, first and second conductive elements of said at least two conductive elements having surfaces remote from said surface of said substrate and being electrically connected through said substrate to said microelectronic element for carrying a first signal electric potential on said first conductive element and for simultaneously carrying a second electric potential on said second conductive element, said second electric potential being different from said first signal electric potential;
molding a dielectric material around said at least two conductive elements for supporting said microelectronic package, the molding performed by introducing the dielectric material into an interior cavity of a mold in which said conductive elements are disposed, the mold having depressions provided in a interior surface thereof, the depressions aligned with the at least two conductive elements so that the at least two conductive elements extend into the depressions when the dielectric material is introduced therein, and so that as a result of said molding said remote surfaces of said at least two conductive elements remain accessible and exposed at an exterior surface of said molded dielectric material and said remote surfaces are at least substantially planar and project to heights from said surface of said substrate greater than a height of the exterior surface of the molded dielectric material from said surface of said substrate.
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Accused Products
Abstract
A method of making a microelectronic assembly can include molding a dielectric material around at least two conductive elements which project above a height of a substrate having a microelectronic element mounted thereon, so that remote surfaces of the conductive elements remain accessible and exposed within openings extending from an exterior surface of the molded dielectric material. The remote surfaces can be disposed at heights from said surface of said substrate which are lower or higher than a height of the exterior surface of the molded dielectric material from the substrate surface. The conductive elements can be arranged to simultaneously carry first and second different electric potentials: e.g., power, ground or signal potentials.
478 Citations
17 Claims
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1. A method of making a microelectronic assembly comprising:
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providing a microelectronic package including a substrate, a microelectronic element overlying said substrate and at least two conductive elements projecting from a surface of said substrate, first and second conductive elements of said at least two conductive elements having surfaces remote from said surface of said substrate and being electrically connected through said substrate to said microelectronic element for carrying a first signal electric potential on said first conductive element and for simultaneously carrying a second electric potential on said second conductive element, said second electric potential being different from said first signal electric potential; molding a dielectric material around said at least two conductive elements for supporting said microelectronic package, the molding performed by introducing the dielectric material into an interior cavity of a mold in which said conductive elements are disposed, the mold having depressions provided in a interior surface thereof, the depressions aligned with the at least two conductive elements so that the at least two conductive elements extend into the depressions when the dielectric material is introduced therein, and so that as a result of said molding said remote surfaces of said at least two conductive elements remain accessible and exposed at an exterior surface of said molded dielectric material and said remote surfaces are at least substantially planar and project to heights from said surface of said substrate greater than a height of the exterior surface of the molded dielectric material from said surface of said substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of making a microelectronic assembly comprising:
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providing a structure including a substrate having first and second oppositely facing surfaces, a microelectronic element overlying the first surface of said substrate, a plurality of first conductive elements extending above the first surface and having remote surfaces above the first surface, said first conductive elements being electrically connected with said microelectronic element through electrically conductive traces on said substrate, said structure further including a plurality of second conductive elements accessible at the second surface of said substrate for connection with a component external to said structure, said second conductive elements electrically interconnected with said first conductive elements and with said microelectronic element; molding a dielectric material covering portions of said first conductive elements and overlying at least a portion of said first surface, the molding performed by introducing the dielectric material into an interior cavity of a mold in which said first conductive elements are disposed, wherein during the introducing of the dielectric material said remote surfaces of said first conductive elements are protected from contact with the dielectric material, such that as a result of said molding said remote surfaces of said first conductive elements project above an exterior surface of said molded dielectric material. - View Dependent Claims (15, 16, 17)
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Specification