Subtractive process for fabricating cylindrical printed circuit boards

摘要

A process for the fabrication of cylindrical circuit boards. The process is easily manufacturable since rotation of the cylindrical printed circuit board about its longitudinal axis enables automatic application of dielectric and metal layers and also allows controllable curing and etching processes. Metal layers may be constructed as planar layers or as stripline layers and both may be used in combination within a single cylindrical circuit board.