Patent ID: 7392815

Claim:
A wafer cleaning chamber, comprising: a lower support having a number of support surfaces, the lower support containing a first volume dispersed between the number of support surfaces; a plate supported by the number of support surfaces of the lower support, the plate overlying the first volume, the plate having a number of wafer support surfaces to receive and support a wafer, the plate having a second volume dispersed between the number of wafer support surfaces, the plate including fluid inlets and fluid outlets defined in a periphery of the plate and outside a location that is to receive the wafer; and an upper support configured to extend completely over the plate, the upper support configured to interface with the lower support outside a periphery of the plate, a lower surface of the upper support configured to have a recessed region that forms a third volume over the wafer to be supported by the plate, wherein an upper extent of the third volume over the wafer support surfaces of the plate is enclosed by the upper support, wherein the fluid inlets and the fluid outlets of the plate are oriented to direct a fluid flow through the third volume in a set configuration when the upper support is interfaced with the lower support outside the periphery of the plate.