Patent ID: 8647465

Claim:
Process for assembling at least one micro-structured substrate comprising upper coplanar plane areas and recesses between them, by means of a glue that can bond to these upper coplanar plane areas, this process being characterised in that it comprises the following steps: placing a mask-less grid above the substrate, the mask-less grid having a plurality of uniformly spaced holes extending between a top side and a bottom side of the grid, each of the uniformly spaced holes configured to accept a portion of glue having a dimension substantially equal to a width dimension of a smallest recess in the substrate and wherein a pre-determined portion of the grid including at least one hole is aligned over a recess in the substrate; coating the top side of the grid with glue; and pressing a tool on the top side of the grid to locally bring the bottom side of the grid into contact with the substrate, wherein glue passing through the holes only deposit on the upper coplanar plane area without said glue entering into said recesses.