Patent ID: 7501156

Claim:
A pattern formation substrate on which a predetermined pattern is formed by ejecting a droplet to a targeted surface, said pattern formation substrate comprising: a first region on the targeted surface; and a second region on the targeted surface, the second region being adjacent to the first region; the first region having a hydrophilicity that is less than that of the second region; the second region having at least two different widths, a first line width L 1 and a second line width L 2 , which widths are adjusted to satisfy conditions (1) and (2), L 1 >D/[ 1+2(cos θ 2 −cos θ 1 )] (1) L 1 >D/[ 1+2(cos θ 2 −cos θ 1 )] (2) where θ 1 is a first contact angle when the droplet contacts the first region, θ 2 is a second contact angle when the droplet contacts the second region, and D is the diameter of the droplet.