Patent ID: 6926775

Claim:
An apparatus for forming a thin layer of material on a micro-device workpiece, comprising: a reactor having a chamber, a gas distributor that directs a gas flow in the chamber, and a workpiece holder positioned in the chamber to receive the gas flow from the gas distributor; a passageway configured to provide ingression to and egression from the chamber for a workpiece, wherein the passageway includes a first end open to the chamber and a second end apart from the chamber; a door assembly having a door that moves between a first position and a second position, and the door being configured to seal the second end of the passageway in the second position; a flow port proximate to the second end of the passageway through which a secondary gas flow passes into the passageway; and a heating element proximate to the second end of the passageway to maintain the second end of the passageway at a desired temperature.