Patent ID: 9332647
Filing Date: 2016-05-03
CPC Classification: G03F,H05K

Claim Text:
1. An etching method that processes a surface of a target object by corroding the surface by a corrosive, and the etching method comprising: a resist forming step of forming a resist on the surface using resist liquid by ink jet printing the resist liquid on the surface; a surface corroding step of corroding a portion of the surface where the resist is not formed by bringing the corrosive into contact with a surface side of the target object where the resist was formed in the resist forming step; and a resist detaching step of detaching the resist from the surface after the surface corroding step, wherein the resist forming step is a step of forming the resist by the resist liquid containing monofunctional monomers or monofunctional oligomers, and amine-modified acrylic oligomers as polyfunctional monomers, the surface corroding step is wet etching to corrode by a liquid corrosive.