Patent ID: 7736948

Claim:
A method of manufacturing a carrier substrate to which a plurality of microelectronic devices is attached, each of the devices including a circuit of electric elements, the method comprising: providing a subassembly of a carrier substrate and a handling substrate, wherein a patterned release layer and an adhesion layer are present between the subassembly and the handling substrate, wherein the adhesion layer is provided with a first side and an opposite second side, the first side being attached to the subassembly and the second side being attached to a portion of the handling substrate and a bridging portion extends from the first side to the second side; forming through-holes through the handling substrate as separation lanes between neighboring microelectronic devices, and removing the release layer through at least some of the through-holes to generate air gaps between released areas of the microelectronic devices and the carrier substrate, wherein the devices remain attached to the carrier substrate through the bridging portion of the adhesion layer, wherein the bridging portion of the adhesion layer is disposed adjacent to the air gap, such that a microelectronic device is individually removable from the carrier substrate by selective cleavage of the bridging portion of the adhesion layer.