New Process Technology for High Tolerance Circuit Boards

The design of PCBs is highly influenced by the components being mounted on them. Holes with diameters as small as, for example, 0·008 in. and aspect ratios of 10:1 will become standard. More complicated PCBs of higher value need enhanced security and uniformity in processing. An answer to these requirements is provided by UNIPLATE, a horizontal processor developed by Schering Electroplating. To secure hole wall treatment, this system uses floodbars for forcing the solution through the holes. Together with chemicals, tuned to this very application, very high quality PCBs can be accomplished.