Transfer apparatus

Abstract

A transfer apparatus is provided. The apparatus comprises a first vacuum transfer module; a first transfer robot disposed in the first vacuum transfer module and configured to transfer a wafer and at least one ring; a second vacuum transfer module; a second transfer robot disposed in the second vacuum transfer module and configured to transfer the wafer and the ring; a tubular connecting module disposed between the first vacuum transfer module and the second vacuum transfer module, the first vacuum transfer module, the second vacuum transfer module and the tubular connecting module being arranged along a first direction, the tubular connecting module having a first length in the first direction, the first length being smaller than the diameter of the wafer; a wafer support rotatably attached to the tubular connecting module and configured to support the wafer; and at least three ring supporting members outwardly extending from the wafer support and configured to support the at least one ring.

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