SYSTEMS AND DEVICES WITH COMMON MODE NOISE SUPPRESSION STRUCTURES AND METHODS

摘要

An embodiment of a transformer-based system or galvanic isolation device includes a first coil, a second coil aligned with the first coil across a gap, and a first capacitor coupled between the first coil and a first voltage reference. A first electrode of the first capacitor may be formed from a conductive electrode structure that is electrically isolated from the first coil, and a second electrode of the first capacitor may be formed from at least a portion of the first coil. The system or device also may include a second capacitor coupled between the second coil and a second voltage reference. The first and second coils may form portions of first and second IC die, respectively, and the system or device may also include one or more dielectric components within the gap between the IC die, where the dielectric component(s) are positioned directly between the first and second coils.

主权项

1. A device comprising:
a first integrated circuit (IC) die that includes: a first IC substrate having a first IC substrate surface; a plurality of first alternating conductive layers and dielectric layers formed over the first IC substrate surface, wherein the plurality of first alternating conductive and dielectric layers has a first exterior surface; a first coil formed from portions of a first set of conductive layers of the plurality of first alternating conductive and dielectric layers; and a first electrode structure formed from a portion of a second set of conductive layers of the plurality of first alternating conductive and dielectric layers, wherein the first coil and the first electrode structure are electrically insulated from each other, and wherein at least a portion of the first coil is configured as a first electrode of a first capacitor, and the first electrode structure is configured as a second electrode of the first capacitor.