Methods, apparatuses and systems associated with a heat exchanger for cooling an IC package are disclosed herein. In embodiments, a heat exchanger may include a base plate having a bottom side to be thermally coupled to the IC package, and a fin side, wherein the fin side is to include a plurality of fins to dissipate thermal energy emanated from the IC package. The heat exchanger may further include a manifold structure disposed on top of the base plate, having one or more layers, to regulate a coolant fluid flow to cool the plurality of fins, wherein the one or more layers are to include a plurality of channels and ports complementarily organized to distribute the coolant fluid flow to the plurality of fins tailored to a thermal energy emanation pattern of the integrated circuit package. Other embodiments may be described and/or claimed.