Bond via array for thermal conductivity
First Claim
Patent Images
1. A microelectronic device, comprising:
- a substrate having a first upper surface and a first lower surface;
an integrated circuit die having a second upper surface and a second lower surface;
interconnects coupling the first upper surface of the substrate to the second lower surface of the integrated circuit die for electrical communication therebetween;
a bond via array having proximal ends of wire bond wires thereof ball bonded to the second upper surface for conduction of heat away from the integrated circuit die to and through the wire bond wires of the bond via array to the second upper surface; and
a molding material disposed in the bond via array with distal ends of the wire bond wires of the bond via array extending at least to a superior surface of the molding material.
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Abstract
In a microelectronic device, a substrate has first upper and lower surfaces. An integrated circuit die has second upper and lower surfaces. Interconnects couple the first upper surface of the substrate to the second lower surface of the integrated circuit die for electrical communication therebetween. A via array has proximal ends of wires thereof coupled to the second upper surface for conduction of heat away from the integrated circuit die. A molding material is disposed in the via array with distal ends of the wires of the via array extending at least to a superior surface of the molding material.
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Citations
20 Claims
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1. A microelectronic device, comprising:
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a substrate having a first upper surface and a first lower surface; an integrated circuit die having a second upper surface and a second lower surface; interconnects coupling the first upper surface of the substrate to the second lower surface of the integrated circuit die for electrical communication therebetween; a bond via array having proximal ends of wire bond wires thereof ball bonded to the second upper surface for conduction of heat away from the integrated circuit die to and through the wire bond wires of the bond via array to the second upper surface; and a molding material disposed in the bond via array with distal ends of the wire bond wires of the bond via array extending at least to a superior surface of the molding material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A microelectronic device, comprising:
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a package substrate having a first upper surface and a first lower surface; an interposer substrate having a second upper surface and a second lower surface; first interconnects coupling the second lower surface and the first upper surface to one another; an integrated circuit die having a third upper surface and a third lower surface; second interconnects coupling the second upper surface and the third lower surface to one another; a die stack coupled to the interposer substrate; wherein the die stack has a fourth upper surface higher than the third upper surface; a bond via array having proximal ends of wire bond wires thereof ball bonded to the third upper surface for conduction of heat away from the integrated circuit die to and through the wire bond wires of the bond via array to the third upper surface; and a molding material disposed in the bond via array with distal ends of the wire bond wires of the bond via array extending at least to a superior surface of the molding material and higher than the fourth upper surface of the die stack. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for formation of a microelectronic device, comprising:
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obtaining a substrate having a first upper surface and a first lower surface; obtaining an integrated circuit die having a second upper surface and a second lower surface; interconnecting with interconnects the first upper surface of the substrate to the second lower surface of the integrated circuit die for electrical conductivity therebetween; forming a bond via array having proximal ends of wire bond wires thereof ball bonded to the second upper surface for conduction of heat away from the integrated circuit die to and through the wire bond wires of the bond via array to the second upper surface; and depositing molding material in the bond via array with distal ends of the wire bond wires of the bond via array extending at least to a superior surface of the molding material. - View Dependent Claims (19, 20)
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Specification