POWER PLANE REGION OF PRINTED CIRCUIT BOARD WITH POWER BLOCKS HAVING AN ARC-SHAPED BOUNDARY

摘要

A multi-layer printed circuit board includes at least a ground plane for providing a ground level, at least a signal plane having a plurality of trace regions for transmitting signals, at least a power plane region having a plurality of power blocks for individually providing a plurality of voltage levels, and at least a via for electrically connecting the trace regions with the power plane region or the ground plane. Two adjacent power blocks with different voltage levels are separated by an insulating line. The insulating line has a plurality of first insulating sectors, and a plurality of second insulating sectors for connecting two adjacent first insulating sectors when an included angle of the adjacent first insulating sectors is greater than a predetermined value.