Importance

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Abstract

In a cutting method by a wire saw, in which a wire A at a wire array wound around work rollers 10 is made to reciprocate or travel in one direction at a high speed and numerous pieces of wafers are cut out in abutment of a workpiece B against the wire array, a receiving member 27 of a cassette type having numerous support wires 34 arranged at the same pitch as that of the wire at the wire array is disposed at a position immediately under the wire array for cutting the workpiece B; and wafers b cut out of the workpiece B by the wire A are contained in separation one from another between the support wires 34 in the receiving member 27. Thus, the wafers can be prevented from adhering to each other during a cutting operation, thus to be accurately cut, and further, the wafers can be prevented from being cracked during the cutting operation, thus to be efficiently separated one from another, so as to enhance wafer cleansing performance.

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First Claim