Provided is a flexible heat sink article comprising a base comprising a
polymer and a plurality of polymeric protrusions extending away from the base,
each protrusion having a major dimension and a minor dimension. The base comprises
thermally conductive particles, and the protrusions comprise non-spherical thermally
conductive particles substantially aligned in the direction of the major dimension
within the protrusions. A thermal interface material may be provided contiguous
with the base. Also provided is a flexible heat sink article comprising a base
comprising a polymer and having a first surface and a second surface, a plurality
of polymeric protrusions extending away from the first surface of the base, each
protrusion having a major and a minor dimension, and a metallic layer contiguous
with the second surface of the base, wherein the base and the protrusions comprise
thermally conductive particles. Also provided is a method of making a flexible
heat sink.
