METHOD FOR PROCESSING HARD-SUBSTRATE LAMINATE, AND METHOD FOR MANUFACTURING PLATE-SHAPED PRODUCT

摘要

Provided is a method for processing a light-transmissive hard-substrate laminate for manufacturing, with high productivity, a plate-shaped product having high dimensional precision at the end faces thereof. A method for processing a hard-substrate laminate, comprising: a) a step of preparing a hard-substrate laminate in which two or more hard substrates are bonded to each other by a peelable adhesive; b) a step of dividing the hard-substrate laminate in the thickness direction and forming the desired number of divided hard-substrate laminates (referred to hereinafter as "divided blocks"); and c) a step of moving the divided blocks relative to each other between rotating grindstones disposed parallel to each other across a predetermined interval and grinding the two opposing end surfaces of the divided blocks simultaneously; the top and bottom faces of the divided blocks being orthogonal to the central axes of the rotating grindstones, and the divided blocks moving relative to each other in the direction orthogonal to the central axes of the rotating grindstones.