Patent ID: 9659808
Date: 2017-05-23
CPC Classifications: H01L

Claim:
1. A semiconductor-element manufacturing method comprising the steps of: cutting out a ring portion of a wafer with laser light to form a flat wafer, the ring portion being formed on a periphery of the wafer and thicker than a central portion of the wafer, the wafer having a first surface and a second surface opposite to the first surface, with the first surface of the wafer being held by the first vacuum stage by suction; using a vacuum end-effector on the second surface of the flat wafer to detach the cut flat wafer from the first vacuum stage and attach the first surface of the flat wafer to a dicing tape; transporting and attaching the first surface of the flat wafer to a second vacuum stage via the dicing tape; and dicing the flat wafer attached to the dicing tape.