Profile: Mid Atlantic Circuits, Inc. is a manufacturer of single-sided, double-sided, multilayer and flexible boards. We provide photo-plotting equipment and microwave substrates. Our substrate materials with dielectric properties are used for fabricating transmission line media, micro-strip, stripline, coax and even waveguide materials. Our hard substrates are ceramics such as alumina, aluminum nitride and beryllium oxide, & desirable for applications where bare die is used as a hybrid module.