US Patent 9681580 Method of producing an enhanced base plate

The current invention comprises a base plate made of at least a first metal and a second metal clad together with a metallurgical bond, where the first and second metals are different metals. The base plate includes an enhanced surface that is entirely contained within the second metal, where the enhanced surface comprises fins, pins, or other structures. The tip of the enhanced surface extends above the outer surface of the second metal, and the enhancements are monolithic with the second metal. The base plate can form one component of a cold plate for cooling electronics.