Patent ID: 6609446
Filing Date: 2003-08-26
Classification: H01L,Y10T

Abstract:
A separating apparatus for separating a disk-like member having a separation layer inside comprising:a holding mechanism for holding the disk-like member while rotating the disk-like member about an axis perpendicular to the separation layer; and a fluid ejection portion for injecting a stream of fluid into the separation layer of the disk-like member held by said holding mechanism to separate the disk-like member at the separation layer by the fluid, wherein to separate only a peripheral portion from the disk-like member, a rotational direction of the disk-like member, a moving direction of the fluid, and a position of said ejection portion are maintained to satisfy a condition, wherein the condition is expressed by |v|cos &thgr;<0 where (1) &thgr; is the angle between the direction of the moving fluid and the direction of the velocity of the peripheral portion at the injection position and (2) v is the velocity of the peripheral portion.