Capacitive/resistive devices and printed wiring boards incorporating such devices, and methods of making thereof

摘要

A capacitive/resistive device provides both resistive and capacitive functions. The capacitive/resistive device may be embedded within a layer of a printed wiring board. Embedding the capacitive/resistive device conserves board surface real estate, and reduces the number of solder connections, thereby increasing reliability. The capacitive/resistive device comprises a first electrode (110), a dielectric (120) disposed over the first electrode, a resistor element (140) formed on and adjacent to the dielectric, a conductive trace (145), and a second electrode (130) disposed over the dielectric (120) and in electrical contact with the resistor element (140), the dielectric being disposed between the first electrode (110) and the second electrode (130).