Carbon coating method for electromagnetic shielding of electronic circuit boardsto provide electromagnetic compatibility

摘要

Electromagnetic compatibility of an electronic printed circuit board (1) is being achieved by coating sensitive regions of electronic printed circuit board (1) with a paint layer containing high conductivity carbon (4). The coating with the said paint layer containing high conductivity carbon (4) is obtained by using "silk printing" method of the paint layer containing high conductivity carbon (4) to electronic printed circuit board (1) covered either twice with isolation mask (3) or once with isolation mask (3) and then with an insulating coat and by drying the product thus obtained in an air circulating furnace.