Copper nanorod-based thermal interface material (TIM)

摘要

A copper nanorod thermal interface material (TIM) is described. The copper nanorod TIM includes a plurality of copper nanorods having a first end thermally coupled with a first surface, and a second end extending toward a second surface. A plurality of copper nanorod branches are formed on the second end. The copper nanorod branches are metallurgically bonded to a second surface. The first surface may be the back side of a die. The second surface may be a heat spread or a second die. The TIM may include a matrix material surrounding the copper nanorods. In an embodiment, the copper nanorods are formed in clusters.

主权项

1. A thermal interface material, comprising:
a plurality of copper nanorods, each having a first end thermally coupled with a first surface and a second end extending toward a second surface, wherein the second surface is copper; and a plurality of copper nanorod branches extending from each second end, wherein the copper nanorod branches have a Cu—Cu metallurgic bond to the second surface.