Cutter wheel, device and method using the cutter wheel, method of dividing laminated substrate, and method and device for manufacturing cutter wheel

摘要

A cutter wheel 1 is formed with an insertion through-hole 6 at the center of the wheel, along with a blade-edge ridge 2 that is displaced to one side face from a center 5 between between wheel side faces 3 and 4. The larger the extent of displacement of the blade-edge ridge 2, that is, the greater the distance from the center 5 until the blade-edge ridge 2, or in other words, the smaller the distance between the left-side face 3 and the blade-edge ridge 2, the closer scribing can be performed to the convex portion and thin film X of the devices during scribing.