Patent ID: 6200402
Filing Date: 2001-03-13
Classification: B29C,B29L,B32B,G11B,Y10T

Abstract:
A method of laminating disc-shaped substrates comprising the steps of:(1) preparing an adhesive sheet body comprising a plurality of adhesive agents each covered with a release paper;(2) peeling off a release paper from the adhesive sheet body;(3) positioning an adhesive agent of the adhesive sheet body over a lower disc-shaped substrate by inserting an end of a positioning member into a hole of the adhesive sheet body;(4) pressing the adhesive sheet body from which the release paper has been peeled to allow the adhesive agent adhered to a lower surface of the adhesive sheet body to transfer and bond onto a surface of the lower disc-shaped substrate by rolling a laminating roller from one end of the lower disc-shaped substrate to the other end thereof;(5) peeling off the adhesive sheet body from the adhesive agent bonded onto the surface of the lower disc-shaped substrate with a peeling member which traverses the lower disc-shaped substrate while supporting the adhesive sheet body in a state where the adhesive sheet body and the lower disc-shaped substrate do not contact each other to maintain a gap therebetween;(6) placing an upper disc-shaped substrate on the lower disc-shaped substrate; and(7) pressing the upper disc-shaped substrate against the lower disc-shaped substrate to bond the lower disc-shaped substrate and the upper disc-shaped substrate.