Patent ID: 7646538

Claim:
Apparatus for creating apertures in a layer on a back side of a substrate that includes a microlens array on a front side thereof, the apparatus comprising: a cradle including a cylindrical surface segment that defines an axis, wherein the cylindrical surface segment is configured to hold the layer on the back side of the substrate against the cylindrical surface segment so that the microlens array on the front side of the substrate faces the axis; a scanning mirror; a pulsed laser that is configured to impinge a pulsed laser beam on the scanning mirror, the scanning mirror being oriented relative to the cradle to scan the pulsed laser beam that impinges thereon, from the axis circumferentially along the cylindrical surface segment to pass through the microlens array on the front side of the substrate and into the layer on the back side of the substrate to create the apertures; and a linear translator that is configured to linearly translate the cradle and/or the scanning mirror axially relative to one another so as to axially translate the pulsed laser beam that is scanned circumferentially along the cylindrical surface segment.