Abstract: Aspects of the present disclosure include a jet impingement cooling system configured to cool high heat flux devices via a cooling fluid. The jet impingement cooling system may include a heatsink and a first supply surface. The heatsink is coupled to the high heat flux device or capable of being coupled to the high heat flux device. The heatsink includes a first impingement surface having exit orifices and impingement regions. The exit orifices are spaced-apart from each other and defined in the first impingement surface. The impingement regions are located between adjacent exit orifices. The first supply surface is spaced-apart from the first impingement surface and includes injection ports spaced-apart from each other and defined in the supply surface. The injection ports are oriented such that impingement jets therefrom are directed to impinge against the impingement regions.

Abstract: An impingement cooling device including a distributor plate, a manifold, and a heat spreader. The distributor plate includes a first side, a second side opposite the first side, a plurality of injection ports extending through the distributor plate from the first side to the second side, and a plurality of extraction ports extending through the distributor plate from the first side to the second side. The manifold is coupled to the distributor plate and includes a partition wall separating the plurality of injection ports and the plurality of extraction ports on the first side. The heat spreader at least partially covers an object to be cooled and includes a top surface configured to oppose the second side of the distributor plate. The heat spreader further includes a surface feature on the top surface configured to increase heat transfer therefrom.