A microelectronic assembly is provided which includes a first element consisting essentially of at least one of semiconductor or inorganic dielectric material having a surface facing and attached to a major surface of a microelectronic element at which a plurality of conductive pads are exposed, the
A microelectronic assembly is provided which includes a first element consisting essentially of at least one of semiconductor or inorganic dielectric material having a surface facing and attached to a major surface of a microelectronic element at which a plurality of conductive pads are exposed, the microelectronic element having active semiconductor devices therein. A first opening extends from an exposed surface of the first element towards the surface attached to the microelectronic element, and a second opening extends from the first opening to a first one of the conductive pads, wherein where the first and second openings meet, interior surfaces of the first and second openings extend at different angles relative to the major surface of the microelectronic element. A conductive element extends within the first and second openings and contacts the at least one conductive pad.
대표청구항▼
1. A microelectronic assembly, comprising: a first element consisting essentially of at least one of semiconductor or inorganic dielectric material;a microelectronic element attached to the first element such that a surface of the first element faces a major surface of the microelectronic element, t
1. A microelectronic assembly, comprising: a first element consisting essentially of at least one of semiconductor or inorganic dielectric material;a microelectronic element attached to the first element such that a surface of the first element faces a major surface of the microelectronic element, the microelectronic element having a plurality of conductive pads exposed at the major surface, the microelectronic element having active semiconductor devices therein;a first opening extending from an exposed surface of the first element towards the surface thereof which faces the microelectronic element, and a second opening extending from the first opening to a first one of the conductive pads, wherein where the first and second openings meet, interior surfaces of the first and second openings extend at different angles relative to the major surface of the microelectronic element; anda conductive element extending within the first and second openings and contacting the at least one conductive pad, the conductive element having at least one of cylindrical or frusto-conical shape, a first portion of the conductive element tapers uniformly from a first width adjacent the exposed surface of the first element to a second width at a first location within the second opening, and a second portion of the conductive element tapers uniformly from a third width adjacent the rear surface of the microelectronic element to a fourth width at the first location. 2. A microelectronic assembly, comprising: a first element consisting essentially of at least one of semiconductor or inorganic dielectric material;a microelectronic element attached to the first element such that a surface of the first element faces a major surface of the microelectronic element, the microelectronic element having a plurality of conductive pads exposed at the major surface, the microelectronic element having active semiconductor devices therein;a first opening extending from an exposed surface of the first element towards the surface thereof which faces the microelectronic element, and a second opening extending from the first opening through a first one of the conductive pads, wherein where the first and second openings meet, interior surfaces of the first and second openings extend at different angles relative to the major surface of the microelectronic element; anda conductive element extending within the first and second openings and contacting the at least one conductive pad, the conductive element having at least one of cylindrical or frusto-conical shape, a first portion of the conductive element tapers uniformly from a first width adjacent the exposed surface of the first element to a second width at a first location within the second opening, and a second portion of the conductive element tapers uniformly from a third width adjacent the rear surface of the microelectronic element to a fourth width at the first location. 3. A microelectronic assembly as claimed in claim 1 or 2, wherein the first element is a carrier which does not have active semiconductor devices therein. 4. A microelectronic assembly as claimed in claim 3, wherein the first element further includes at least one passive circuit element therein. 5. A microelectronic assembly as claimed in claim 4, wherein the at least one passive circuit element includes at least one selected from the group consisting of an inductor, a resistor, or a capacitor. 6. A microelectronic assembly as claimed in claim 3, wherein the carrier mechanically supports the microelectronic element. 7. A microelectronic assembly as claimed in claim 1 or 2, wherein the first element has a first thickness and the microelectronic element has a second thickness less than or equal to the first thickness. 8. A microelectronic assembly as claimed in claim 1 or 2, wherein the major surface of the microelectronic element is a front surface thereof, and the microelectronic element has a rear surface opposite the front surface, and an opening extending from a rear surface and exposing at least a portion of at least one of the conductive pads, and a second conductive element extends within the opening in the microelectronic element and being electrically connected with the conductive pad. 9. A microelectronic assembly as claimed in claim 8, wherein the microelectronic element includes a plurality of the openings, and the microelectronic assembly includes a plurality of the second conductive elements extending within the second openings and electrically connected with the conductive pads. 10. A microelectronic assembly as claimed in claim 9, wherein the second conductive elements are electrically connected with respective ones of the conductive pads. 11. A microelectronic assembly, comprising: a first element consisting essentially of at least one of semiconductor or inorganic dielectric material;a microelectronic element attached to the first element such that a surface of the first element faces a major surface of the microelectronic element, the microelectronic element having a plurality of conductive pads having upper surfaces exposed at the major surface and lower surfaces opposite the upper surfaces, the microelectronic element having active semiconductor devices therein;a first conductive element extending within a first opening in the first element and contacting the upper surface of at least one of the conductive pads; anda second conductive element extending through a second opening in the microelectronic element and contacting the at least one conductive pad,the first and second conductive elements being exposed at opposite faces of the microelectronic assembly for electrically conductive interconnection with at least one component external to the microelectronic assembly. 12. A microelectronic assembly as claimed in claim 11, wherein the interior surfaces of the first and second openings extend away from the respective upper and lower surfaces of the at least one conductive pad at first and second different angles. 13. A microelectronic assembly as claimed in claim 11, wherein the microelectronic element includes a plurality of the second openings, and the microelectronic assembly includes a plurality of the second conductive elements extending within the second openings and electrically connected with the conductive pads, the second conductive elements being electrically connected with respective first conductive elements extending within the first opening. 14. A microelectronic assembly as claimed in claim 11, wherein the first element further includes at least one passive circuit element therein. 15. A microelectronic assembly as claimed in claim 11, wherein the opening in the first element includes a third opening extending from a rear surface of the first element towards the front surface, and further includes a fourth opening extending from the third opening and exposing at least a portion of the upper surface of at least one of the conductive pads, the first conductive element extending at least within the third opening and through the fourth opening to contact the upper surface of the at least one conductive pad. 16. A microelectronic assembly as claimed in claim 1 or 2, wherein the conductive element has a shape determined independently from a contour of an interior surface of at least one of the first and second openings. 17. A microelectronic assembly as claimed in claim 1 or 2, wherein the conductive element conforms to a contour of an interior surface of at least one of the first and second openings. 18. A microelectronic assembly as claimed in claim 1 or 2, wherein a portion of the conductive element within the second opening conforms to a contour of an interior surface of the second opening. 19. A microelectronic assembly as claimed in claim 18, wherein a portion of the conductive element extending within the first and second openings has at least one of cylindrical or frusto-conical shape. 20. A microelectronic assembly as claimed in claim 11, wherein the second opening in the microelectronic element extends from the rear surface of the microelectronic element through the conductive pad, and the second conductive element extends through the conductive pad and is electrically coupled to the first conductive element at a location within the first opening. 21. A microelectronic assembly as claimed in claim 20, wherein the first conductive element conforms to a contour of the second opening in the microelectronic element. 22. A microelectronic assembly as claimed in claim 20, wherein the first conductive element has a contour independent from a contour of the second opening in the microelectronic element. 23. A system comprising a structure according to claim 1, 2 or 11 and one or more other electronic components electrically connected to the structure. 24. A system as claimed in claim 23 further comprising a housing, said structure and said other electronic components being mounted to said housing.
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