Patent ID: 8739728

Claim:
A deposition system for depositing a coating on a substrate, comprising: a plurality of rotatable fluid-supplied rollers, wherein the rollers are configured to deliver a fluid coating on the substrate, wherein the coating is non-uniform in thickness in a direction along a length of the rollers, wherein the thickness non-uniformity delivered by the rollers is configured to compensate for a non-uniform subsequent process so that after the non-uniform subsequent process, a uniform substrate is achieved from the combination of the non-uniform coating and the non-uniform subsequent process, each roller comprising an elongated rod comprising a coupler for accepting a fluid at an end of the rod, the elongated rod configured to transfer the fluid from the end of the rod to a portion of the elongated outer surface of the rod; a porous layer covering a portion of the elongated outer surface of the rod, wherein the porous layer receives the fluid at the outer surface of the rod; a fixed fluid delivery line coupled to the coupler for delivering fluid to the rollers, wherein the coupler comprises a rotatable element for enabling coupling the rotating roller to the fixed fluid delivery line; and a rotating mechanism for rotating the fluid-supplied rollers.