Patent ID: 9555434
Date: 2017-01-31
CPC Classifications: B05B,B23K,C23C,H01L,Y10T

Claim:
1. A method for forming a thin film pattern, in which a thin film pattern is formed by using a deposition mask that has been produced by forming, through a resin film that transmits visible light, an opening pattern having the same shape and dimension as those of the thin film pattern so as to correspond to a preliminarily determined forming region of the thin film pattern on a substrate; the method comprising: a first step of bringing the film into close contact with the substrate; a second step of irradiating a portion of the film corresponding to the forming region of the thin film pattern with laser light, to form an opening pattern having the same shape and dimension of those of the thin film pattern on the film to thereby form the deposition mask; a third step of performing deposition on the portion corresponding to the forming region of the thin film pattern on the substrate through the opening of the deposition mask; and a fourth step of peeling the deposition mask.