Integrated circuit package with embedded passive structures
First Claim
1. A method of manufacturing an integrated circuit package, comprising:
- encapsulating first and second integrated circuit dies with a molding compound;
forming a passive component over the molding compound;
encapsulating the passive component in additional molding compound, wherein the additional molding compound directly contacts the molding compound; and
mounting the encapsulated first and second integrated circuit dies on a redistribution wafer, wherein the first integrated circuit die is interposed between the passive component and the redistribution wafer.
1 Assignment
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Accused Products
Abstract
An integrated circuit package with embedded passive structures may include first and second integrated circuit dies that are surrounded by capacitor structures. A molding compound is deposited to encapsulate the integrated circuit dies and the capacitor structures. The molding compound is then attached to a redistribution wafer, in which the integrated circuit dies and the capacitor structures are electrically connected to metal routing layers of the redistribution wafer. A conductive layer is subsequently formed over the first integrated circuit die in the molding compound. The conductive layer is made up of additional metal routing layers and inductor structures. The integrated circuit package may further include a group of conductive vias that is formed in the molding compound. Each conductive via has a first end contacting the metal routing layers of the distribution wafer, and a second end contacting the conductive layer.
25 Citations
20 Claims
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1. A method of manufacturing an integrated circuit package, comprising:
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encapsulating first and second integrated circuit dies with a molding compound; forming a passive component over the molding compound; encapsulating the passive component in additional molding compound, wherein the additional molding compound directly contacts the molding compound; and mounting the encapsulated first and second integrated circuit dies on a redistribution wafer, wherein the first integrated circuit die is interposed between the passive component and the redistribution wafer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An integrated circuit package produced by a process comprising the steps of:
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forming a non-conductive layer that encapsulates first and second integrated circuit dies; forming a plurality of conductive vias through the non-conductive layer; and forming a conductive layer over the non-conductive layer, wherein the conductive layer comprises a plurality of passive structures, each of which is connected to an end of each of the plurality of conductive vias. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An integrated circuit package, comprising:
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a first integrated circuit die; a second integrated circuit die; a conductive structure formed over the first integrated circuit die; a molding compound layer that encapsulates the conductive structure, the first integrated circuit die, and the second integrated circuit die; routing layers attached to a bottom surface of the molding compound layer; and a plurality of vias formed in the molding compound layer, wherein each of the plurality of vias comprises a first end contacting the routing layers and a second end contacting the conductive structure. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification