A thermally conductive film that includes a film of polymeric matrix material having a thickness t defined between a top surface and a bottom surface. A plurality of fibers, having a greater thermal conductivity than the polymeric matrix material, is disposed in the film and extends between the top...http://www.google.es/patents/US5695847?utm_source=gb-gplus-sharePatente US5695847 - Thermally conductive joining film
