Technique for Separation of a Polymerized Film From Stamper
Original Publication Date: 1989-Feb-01
Included in the Prior Art Database: 2005-Jan-27
The technique relates to the manufacture of information carrying discs and the process of separation of the polymerized film, which has been adhered to its carrier substrate, from the profiled stamper. Fig. 1 shows a partially sectioned view depicting a point in the process where the photopolymerized polymer has adhered to the substrate in the shape of a doughnut and requires separation from the profiled stamper. Fig. 2 shows the same cross section view as Fig. 1, but with the photopolymerized polymer partly separated from the profiled stamper. (Image Omitted) The method of separation is to raise the separator ring, which is a complete annulus, to contact the substrate (disc) about its entire periphery and by continuing to raise it, as per Fig. 2, to cause a shear along the plane of the photopolymerized polymer and the stamper.