Patent ID: 6376779
Filing Date: 2002-04-23
Classification: H01R,H05K

Abstract:
A printed circuit board having a plurality of spaced apart scrap border support tabs along the perimeter of the board, the board surfaces including the board edges along said perimeter being coated with a conductive shielding material, except that each tab presents an uncoated, unshielded surface at the point of severance created by detachment of a scrap border subsequent to coating application, and wherein the printed circuit board includes a plurality of spaced apart elongated apertures adjacent said perimeter, with each aperture being inwardly coincident to a respective one of each of said support tabs, each said aperture defining an inner surface adjacent to the corresponding support tab with a portion of said inner surface being substantially parallel to adjacent perimeter portions of the circuit board, said inner surface of each said aperture also being coated with the conductive shielding material with the latter being attached to the conductive shielding material of the board surface, such that a waveguide configuration is created which serves to attenuate electromagnetic emissions entering into or leaving the printed control board at the corresponding uncoated unshielded surface portions of the support tab during use of the printed circuit board.