EMBEDDED FILTERS FOR POWER RAIL MERGER
First Claim
1. An integrated circuit package comprising:
- a first power rail coupled to a power supply node, the first power rail configured to transmit a first power signal from the power supply node to a first consumer circuit;
a second power rail configured to transmit a second power signal, based on the first power signal, to a second consumer circuit; and
a first isolation module configured to receive the first power signal from the first power rail and, in response, provide the second power signal at the second power rail, the first isolation module comprising a first integrated inductor and a first integrated capacitor;
wherein the first integrated inductor includes first and second inductor terminals coupled respectively to the first and second power rails; and
wherein the first integrated capacitor includes a first capacitor terminal coupled to the first power rail, and a second capacitor terminal coupled to a reference node.
1 Assignment
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Accused Products
Abstract
An integrated circuit (IC) can include multiple power domains that are served by a common power source. In an example, a first IC power rail can be coupled to the source and a first consumer circuit. A second IC power rail can be coupled to a second consumer circuit. The second IC power rail can receive a filtered power signal from an isolation module that is coupled between the first and second power rails. In an example, an isolation module includes an integrated inductor and a capacitor (e.g., a land-side capacitor). The integrated inductor can optionally include multiple spaced apart conductive layers that are electrically coupled. The integrated inductor can optionally include a series of conductive traces and plated through holes or vias that together provide a current path with multiple turns.
12 Citations
20 Claims
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1. An integrated circuit package comprising:
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a first power rail coupled to a power supply node, the first power rail configured to transmit a first power signal from the power supply node to a first consumer circuit; a second power rail configured to transmit a second power signal, based on the first power signal, to a second consumer circuit; and a first isolation module configured to receive the first power signal from the first power rail and, in response, provide the second power signal at the second power rail, the first isolation module comprising a first integrated inductor and a first integrated capacitor; wherein the first integrated inductor includes first and second inductor terminals coupled respectively to the first and second power rails; and wherein the first integrated capacitor includes a first capacitor terminal coupled to the first power rail, and a second capacitor terminal coupled to a reference node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system comprising:
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a processor circuit; a power converter circuit coupled to the processor circuit and configured to provide, to the processor circuit, regulated DC power supply signals including first and second voltage signals; wherein the processor circuit comprises a semiconductor die, the semiconductor die including first and second power domains configured to receive the first and second voltage signals, respectively; wherein each of the first and second power domains includes multiple power rails, configured to provide different power signals to consumer circuits corresponding to the multiple power rails, and wherein each of the multiple power rails is coupled to an adjacent power rail in the same domain or to the power converter circuit using an integrated inductor circuit and an integrated capacitor circuit. - View Dependent Claims (16, 17)
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18. A semiconductor package comprising:
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a power supply node; a first consumer circuit coupled to the power supply node, the first consumer circuit having a first noise tolerance characteristic; a second consumer circuit having a different second noise tolerance characteristic; a first integrated LC filter coupled between the power supply node and the second consumer circuit, the first integrated LC filter configured to transmit a first conditioned power signal from the power supply node to the second consumer circuit; a third consumer circuit having a different third noise tolerance characteristic; and a second integrated LC filter coupled between the second and third consumer circuits, the second integrated LC filter configured to transmit a second conditioned power signal from the second consumer circuit to the third consumer circuit. - View Dependent Claims (19, 20)
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Specification