▎ 摘　　要

NOVELTY - A magnetic graphene based-thermal conductive pattern preparing method involves placing a surface patterned magnetic field modulator in a magnetic field and a substrate on a modulator surface, and adding a magnetic graphene dispersion on the surface of the substrate to form a pattern corresponding to the magnetic field modulator surface pattern under the induction of the magnetic field to obtain the finished product, where the magnetic field modulator comprises main body having patterned groove or channel on the top surface and a filling material filled in the pattern groove or the channel. USE - Method for preparing magnetic graphene based-thermal conductive pattern that is utilized in a rigid circuit board, a flexible circuit board and an electromagnetic shielding circuit board (claimed). ADVANTAGE - The method enables preparing the magnetic graphene based-thermal conductive pattern in a simple, cost effective and eco-friendly manner. DETAILED DESCRIPTION - A magnetic graphene based-thermal conductive pattern preparing method involves placing a surface patterned magnetic field modulator in a magnetic field and a substrate on a modulator surface, and adding a magnetic graphene dispersion on the surface of the substrate to form a pattern corresponding to the magnetic field modulator surface pattern under the induction of the magnetic field to obtain the finished product, where the magnetic field modulator comprises a main body having a patterned groove or a channel on the top surface and a filling material filled in the pattern groove or the channel, the main body is a low permeability material when the filling material is a high magnetic permeability material, the main body is a high permeability material when the filling material is a low magnetic permeability material, and the height is relative to the main body and the filling material with different magnetic permeability.