Patent ID: 8221557
Filing Date: 2012-07-17
Classification: B08B,H01L,Y10S

Abstract:
1. An apparatus for processing semiconductor workpieces, comprising: a workpiece chamber having an inlet, an outlet, and a processing zone between the inlet and the outlet; a vapor supply in fluid communication with the processing zone via the inlet, the vapor supply being configured to supply a plurality of vapor droplets to the processing zone, the vapor supply including a plurality of liquid supplies coupled to a vaporizer, wherein none of the liquid supplies contain a material that is permanently applied to a semiconductor workpiece via the vapor supply; a vapor sink in fluid communication with the processing zone via the outlet, the vapor sink being configured to remove the vapor from the processing zone; a workpiece support positioned to carry the semiconductor workpiece at the processing zone and in a vapor flow path between the vapor supply, the inlet of the workpiece chamber, the processing zone, the outlet of the workpiece chamber, and the vapor sink; and a controller operatively coupled to the vapor supply, the controller being configured to control a size of vapor droplets from the vapor supply based on a size of openings in the semiconductor workpiece carried by the workpiece support.