A slip ring and a method for manufacturing a slip ring utilizes a first double clad copper laminate with a first side and a second side separated by a first dielectric and a second double clad copper laminate with a third side and a fourth side separated by a second dielectric. Copper is selectively...http://www.google.ca/patents/US6984915?utm_source=gb-gplus-sharePatent US6984915 - Electrical slip ring platter multilayer printed circuit board and method for making same
