The invention belongs to the technical field of
mass transfer, and particularly discloses a Micro LED
mass transfer device and method based on demagnetization through selective heating. The device comprises a substrate and a magnetic
square array arranged on the upper surface of the substrate, wherein each magnetic square in the magnetic
square array has
magnetism, and the upper surface and the lower surface of each magnetic square are different
magnetic poles; each magnetic square can lose
magnetism under the action of external heating. When
transfer operation is performed, the magnetic
square array is in one-to-one correspondence with the Micro
LED array with the
magnetism, the magnetic square array is adopted to integrally pick up the Micro
LED array, then the magnetic squares are selectively heated to allow the magnetic squares to lose the magnetism to selectively transfer the Micro LED onto a target circuit substrate with the magnetism. The Micro LED
mass transfer device and method can achieve the patterning and selectivity
mass transfer of the Micro LED, and is high in applicability and accurate in positioning, etc.