Abstract: An electronic device substrate with a substantially planar surface formed from an electrically non-conductive material is provided with one or more metalized pads on the substantially planner surface. Each of the one or more metalized pads is surrounded by and coplanar with the first electrically nonconductive material along an outer boundary of the metalized pad. The metalized pad is patterned such that portions of the metalized pad form metalized fingers that extend radially from the outer boundary of the metalized pad in an interdigitated arrangement with the first electrically nonconductive material. The metalized pad has a solderable surface.

Abstract: A semiconductor device package includes a leadframe, and a heatsink bonded to the leadframe. A semiconductor device may be mounted using the leadframe and positioned such that heat generated by the semiconductor device is conducted by the heatsink, with molding that encapsulates the leadframe, the heatsink, and the semiconductor device.