Patent ID: 8230903
Filing Date: 2012-07-31
Classification: F28F,G06F,H01L

Abstract:
1. A heat sink for cooling a heat-generating device including a reference plane, comprising: a base for mounting to the heat-generating device; and a cooling section coupled to the base, the cooling section including a plurality of discrete flow tubes, each discrete flow tube having an inlet, an outlet, and a bounding wall that defines a closed fluid flow path from the inlet to the outlet, and each discrete flow tube including a central axis along which fluid flows that is substantially parallel to the reference plane of the heat-generating device, wherein the discrete flow tubes are arranged in a layered stack, the bounding wall of each discrete flow tube has an octagonal geometrical shape viewed along the central axis, the bounding wall of each flow tube has a thickness that decreases with increasing distance of the discrete flow tube in the layered stack relative to the reference plane, and the bounding wall of each discrete flow tube has a sawtooth topography generally defining a plurality of crests and a plurality of troughs in a direction substantially parallel to the central axis.