Patent ID: 6946311
Filing Date: 2005-09-20
Classification: H01L

Abstract:
1. A wafer processing apparatus comprising a mounting means in which a dicing tape is adhered to the underside of a wafer having a right side to which a surface protection tape is adhered, and the entirety of the wafer is secured to a frame; an ultraviolet light irradiating means which irradiates the dicing tape of the wafer with ultraviolet light; and a detaching means in which the surface protection tape is detached from the right side of the wafer, wherein the order of the occurrence of an irradiating operation for irradiating the dicing tape with ultraviolet light by the ultraviolet light irradiating means and a detaching operation for detaching the surface protection tape by the detaching means is determined, based on a relation between the adhesive force of the surface protection tape and the adhesive force of the dicing tape before and after an ultraviolet light irradiating operation carried out by the ultraviolet light irradiating means.