Method and apparatus for reducing particle contamination on wafers

Abstract

A method and apparatus for reducing particle contamination on wafers is disclosed. The method includes providing a semiconductor furnace system having an ideal reaction chamber, an electrostatic generator, a conducting wire, and a conductive ring. Moreover, an insulating layer is coated over the entire wafer boat carrier, that is part of the reaction chamber. Charges with a first polarity are generated after a reaction process carried out inside the chamber and before the “vacuum breaking” stage. These charges spread evenly across the entire exposed surface of the wafer boat carrier and repulse particles carrying the same polarity away from the wafers that are in process.

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