Patent ID: 6459045
Filing Date: 2002-10-01
Classification: H05K

Abstract:
A circuit sub-board for regulating constant power source and strengthening ground connections by connecting to a main circuit board, wherein said main board further includes a first power-source hole, a first ground-connection hole, a first power-source layer connected to said first power-source hole, and a first ground-connection layer connected to said first ground-connection hole, the circuit sub-board comprising:a second power-source layer and a second ground-connection layer; a plurality of second power-source holes formed through said circuit sub-board and electrically connected to said second power-source layer; and a plurality of second ground-connection holes formed through said circuit sub-board and electrically connected to said ground-connection layer; wherein said circuit sub-board is secured and electrically connected to said main board via a plurality of guiding legs passing respectively through said first power-source holes to said second power-source holes and through said first ground-connection holes to said second ground-connection holes.