Patent ID: 8065995
Filing Date: 2011-11-29
Classification: B28D,Y10T

Abstract:
1. A wire sawing apparatus, comprising: a horizontal ingot feeding wire slicing and cleaning apparatus, wherein the horizontal ingot feeding wire slicing apparatus comprises: a vertical wire web, wherein sawing wires of the vertical wire web are located substantially in a vertical plane and move in a substantially vertical direction; at least one first top outlet and second top outlet for applying fluids during sawing, wherein the at least one first top outlet being located in a top position with respect to at least one work piece and wherein the fluids flow in a substantially downward vertical direction under a gravitational force and wherein the first top outlet supplies an abrasive slurry and the second top outlet supplies at least one cleaning fluid; at least one chute for removing the fluids, wherein the at least one chute is located substantially below the at least one work piece for receiving the fluids, wherein the at least one work piece is impelled against the vertical wire web by movement in a horizontal direction, and wherein the abrasive slurry is applied to the top of the at least one work piece and the abrasive slurry flows in a vertical direction against and into the at least one work piece for slicing wafers, and wherein the at least one second top outlet being located in a top position of the sliced wafers to provide the at least one cleaning fluid for cleaning debris between the sliced wafers; two wire guide cylinders, wherein the sawing wires are stretched between the two wire guide cylinders and held substantially in the vertical plane by a defining interval between the sawing wires; a tension control unit for controlling tension of the sawing wires; a support table for carrying the at least one work piece to be sliced; a power driver for driving the two wire guide cylinders; a frame for holding the horizontal ingot feeding wire slicing apparatus; and a control panel for operating the wire sawing apparatus.