Patent ID: 9017808
Filing Date: 2015-04-28
Classification: H01L,Y10S,Y10T

Abstract:
1. A thermal interface material comprising a sheet comprising anisotropically oriented thermally conductive nano-scale fibers, the nano-scale fibers of the sheet being organized to be self-supporting and having at least one exposed surface; a stabilizing material comprising thermally conductive microparticles or nanoparticles in a matrix, disposed in at least a portion of an inter-fiber void space between the nano-scale fibers in the sheet, effective to maintain the anisotropic orientation of the thermally conductive nano-scale fibers; a capping layer in direct contact with an end portion of the fibers proximate to an exposed surface of the sheet, the fibers extending beyond the stabilizing material and into the capping layer wherein the fibers comprise at least one of carbon nanotubes, carbon columns, silver nanowires, copper nanowires, a high thermal conductivity metal alloy, and the stabilizing material comprises an organic polymer; and a device having a surface wherein the exposed surface of the sheet is selectively bonded to the device surface to provide a pattern of bonded and unbonded portions of the exposed surface of the sheet are slidable against the device surface without substantially inducing shear stress.