Patent ID: 9091873
Filing Date: 2015-07-28
Classification: G02F,H01J,H01L

Abstract:
1. A fabricating method of a thin film pattern, comprising: providing a print roller device having a roll shape around which a blanket is wound; coating the blanket with an etch resist solution including a surfactant inclusive of an ethylene oxide fluorinated polymer; providing a print plate of an engraved shape where a groove and a projected part except the groove is formed; and transferring the etch resist solution only on the projected part of the print plate and leaving the etch resist solution of an area corresponding to the groove in the print roller device, wherein the etch resist solution consists of a base polymer of 4-20%, a carrier solvent of 40-60%, a printing solvent of 20-40% and a surfactant of 0.05-1%, wherein the base polymer includes a polymer chain, wherein the surfactant includes molecules of a fluorine radical corresponding to a hydrophobic radical and a hydrocarbon chain and is CF wherein the surfactant has a similar surface energy as the polymer chain of the base polymer, and the molecules of the surfactant are located randomly with respect to the polymer chain of the base polymer, wherein each of the blanket, the print plate and the etch resist solution has a non-polar surface energy value, a polar surface energy value, and a surface energy value that is a sum of the non-polar surface energy value and a polar surface energy value, wherein the non-polar surface energy value of the etch resist solution is greater than the non-polar surface energy value of the blanket and is less than the non-polar surface energy value of the print plate, and wherein the polar surface energy value of the etch resist solution is greater than the polar surface energy value of the blanket and is less than the polar surface energy value of the print plate.