Patent ID: 6012976
Filing Date: 2000-01-11
Classification: B24B,Y10T

Abstract:
A chuck for receiving a generally conical end of an ingot of a semiconductor material to support and rotate the ingot during a process of shaping a peripheral surface of the ingot, comprising:(a) a base defining an opening having a central axis therethrough and further defining a fastener hole for use in fastening said base to a lathe, said base including a receptacle for a chuck insert; and(b) a chuck insert that fits within said receptacle and has a first conical ingot support surface that is coaxial with said central axis of said base when said chuck insert is located within said receptacle, thereby permitting said chuck insert to support the generally conical end of the ingot such that the generally conical end of the ingot is at least partially disposed within the opening defined by said base without contacting said base.