VOLTAGE NOISE REDUCTION OF POWER DELIVERY NETWORKS FOR INTEGRATED CIRCUITS
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Abstract
An electronic apparatus and an electronic system may include a first power delivery network (PDN) and a second PDN. The first PDN may include a first inductor as a segment of a power rail of the first PDN, while the second PDN may include a second inductor as a segment of a power rail of the second PDN. The first inductor and the second inductor may form a magnetically coupled inductor. The magnetically coupled inductor may provide migrated impedance ZT to the first PDN induced by the magnetically coupled inductor. The migrated impedance ZT to the first PDN may help the first PDN to reduce its voltage noise. Other embodiments may be described and/or claimed.
1 Citation
50 Claims
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1-25. -25. (canceled)
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26. An electronic apparatus, comprising:
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a first inductor, wherein the first inductor is a segment of a power rail of a first power delivery network (PDN) that has a first capacitance with a first voltage noise; and a second inductor, wherein the second inductor is a segment of a power rail of a second PDN, the second PDN has a second capacitance with a second voltage noise, wherein the first inductor and the second inductor form a magnetically coupled inductor, and wherein the first PDN includes an impedance induced by the magnetically coupled inductor to reduce the first voltage noise to a third voltage noise. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. An electronic apparatus, comprising:
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a substrate; a first inductor placed within the substrate, wherein the first inductor is a segment of a power rail of a first power delivery network (PDN), and the first PDN has a first capacitance with a first voltage noise; and a second inductor placed within the substrate, wherein the second inductor is a segment of a power rail of a second PDN, the second PDN has a second capacitance with a second voltage noise, wherein the first inductor and the second inductor form a magnetically coupled inductor, and wherein the first PDN includes an impedance induced by the magnetically coupled inductor to reduce the first voltage noise to a third voltage noise. - View Dependent Claims (41, 42, 43, 44, 45)
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46. A computing device, comprising:
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a printed circuit board (PCB); a package substrate coupled with the PCB, wherein the package substrate includes a first inductor and a second inductor, and wherein the first inductor is a segment of a power rail of a first power delivery network (PDN), the first PDN has a first capacitance, and the first PDN with the first capacitance has a first voltage noise larger than a first power integrity performance target, and wherein the second inductor is a segment of a power rail of a second PDN, the second PDN has a second capacitance, and the second PDN with the second capacitance has a second voltage noise smaller than a second power integrity performance target, and wherein the first inductor and the second inductor form a magnetically coupled inductor, and the first PDN includes an impedance induced by the magnetically coupled inductor to reduce the first voltage noise to a third voltage noise. - View Dependent Claims (47, 48, 49, 50)
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Specification