Abstract: An all-metal flat package for microcircuits is described which has a copper bottom and a stainless steel frame. Beryllia substrates carrying power chips can readily be soldered into the package which has good heat transfer characteristics.
Abstract: An all-metal flat package for microcircuits is described which has a molybdenum bottom and a Kovar frame. Large 96% alumina substrates carrying heat dissipating microcircuits can readily be soldered into the package which has good transfer characteristics.