Patent ID: 6409835
Filing Date: 2002-06-25
Classification: B05D,H01J

Abstract:
A layer forming apparatus, comprising:a vessel configured to retain a liquid; a pusher bar joined to the vessel and configured to compress non-fluid particulates on an upper surface of the liquid; a conveyor which enters and exits the vessel, the conveyor being configured to removably retain substrates and to transport such substrates through the vessel, the conveyor having a front surface that faces the pusher bar and a back surface in opposing orientation relative to the front surface; and the vessel, conveyor and pusher bar being configured to form a layer of the non-fluid particulates on substrates as the substrates are transported through the vessel by the conveyor, wherein the conveyor comprises lateral edges and wherein the vessel comprises a seal along the lateral edges of the conveyor to prevent the particulates from flowing around the conveyor and contacting the back surface of the conveyor.