Method of manufacturing hexagonal boron nitride laminates

Abstract

A method of manufacturing a hexagonal boron nitride laminate contains steps of: a) Dissolve dielectric polymers in solvent. b) Mixing h-BN powder to form a well-mixed h-BN coating slurry. c) Coating slurry on substrates and dried at 100-150° C. The substrates can directly be etched or processed to form electric circuits. Substrates can also be completely etched or detached to attain a free standing laminate. Thereby, a hexagonal boron nitride laminate exhibit thermal conductivity of 10 to 40 W/m·K, which is significantly larger than that currently used in thermal management. In addition, thermal conductivity of hexagonal boron nitride laminates increases with the increasing mass density, which opens a way of fine tuning of its thermal properties. For heat dissipation application, hexagonal boron nitride laminate coating can significantly enhance the performance of LED light bulb.

Dependencies are inferred from the claim text.