Patent ID: 9044774
Filing Date: 2015-06-02
Classification: B05C,H01L

Abstract:
1. A combinatorial processing apparatus comprising: a cell having a fluid seal for defining at least one region on a substrate; a flow head comprising at least one vent and disposed in the cell to dispense fluid into the at least one region, wherein the flow head, the substrate, and the cell define a process chamber above the at least one region and the flow head is configured to move within the cell towards the substrate; a protrusion extending from the flow head into the process chamber, wherein the protrusion is shaped to form a vacuum plenum around a periphery of the protrusion, wherein when the flow head is moved towards the substrate, the fluid is squeezed into the vacuum plenum; a fluid source attached to the flow head to deliver the fluid into the chamber; and a vacuum port extending through the flow head and in fluid communication with the vacuum plenum to remove the fluid from the chamber.