Patent ID: 6119673
Filing Date: 2000-09-19
Classification: B28D

Abstract:
A wafer retrieval method in a multiple slicing wire saw which comprises adhering different lots of workpieces to slice base mounting beams so that said different lots of workpieces are positioned on a mounting plate in series; mounting said mounting plate on a workpiece feed table; feeding said workpiece feed table toward wire rows to slice said different lots of workpieces pressed against said wire rows into sliced wafers; separating said wafers from said slice base mounting beams to which the wafers are adhered to; and retrieving the wafers individually; said wafer retrieval method comprising the steps of:adhering a partition between said different lots of workpieces to said slice base mounting beams on said mounting plate through said slice base mounting beams;mounting said mounting plate to said workpiece feed table and slicing said different lots of workpiece together with said partition at the same time;taking said mounting plate from said workpiece feed table after slicing;soaking all the wafers and partition in hot water or chemical to separate them from said slice base mounting beams at the same time; andpartitioning the wafers, having been separated from said slice base mounting beams, with the partition separated from said slice base mounting beams between wafer lots.