Patent ID: 7984737
Filing Date: 2011-07-26
Classification: B26D,B26F,G01B,H01L,Y10T

Abstract:
1. A method for cutting a supporting adhesive tape through which a ring frame holds a semiconductor wafer, the method comprising the steps of: cutting an adhesive tape along a contour of a ring frame while maintaining constant a distance from a reference plane of a cutter holder, which is an attachment base end of a cutter blade, to a cutting edge of the cutter blade penetrating through the adhesive tape joined to the ring frame and bringing the cutting edge of the cutter blade close to the ring frame; measuring a distance from the reference plane to the cutting edge of the cutter blade with a measuring device each time the adhesive tape is cut by a predetermined number of times while the adhesive tape is cut with the cutter blade; and maintaining the distance from the reference plane to the cutting edge of the cutter blade constant by adjusting a length of the cutter blade protruding from an oval hole of the cutter holder in accordance with a result of the measurement.