Patent ID: 9640760
Date: 2017-05-02
CPC Classifications: B05C,B05D,H01L,Y02E,Y02P

Claim:
1. A slot-die coating method for manufacturing a patterned coating layer on a substrate, the method comprising: providing a slot-die coating head comprising an outflow opening from which outflow opening, in use, flows a coating fluid, wherein the outflow opening forms a slit that is, in use, arranged in a slit direction over the substrate surface; controlling a relative movement between the outflow opening and the substrate surface along a coating direction transverse to the slit direction; controlling an intermittent transfer of the coating fluid from the slot-die coating head onto the substrate surface to provide, by said intermittent transfer, coated areas on the substrate surface separated by uncoated areas; wherein the substrate surface comprises a pre-patterned layer of high surface energy areas and low surface energy areas; wherein a contact angle of the coating fluid on the substrate surface is lower in the high surface energy areas than in the low surface energy areas; wherein boundaries between the low surface energy areas and high surface energy areas are arranged along the slit direction; and wherein the method further comprises: synchronizing the intermittent transfer with a passage of the outflow opening over the boundaries between the low surface energy areas and high surface energy areas wherein the transfer is enabled when the outflow opening passes over a high surface energy area and wherein the transfer is disabled when the outflow opening passes over a low surface energy area.