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1. (, Photo resist)

1. Photo-resist .
Photo-resist ٲ ׿ ذ ϸ
B.C. 5000-4000 Ҵ Ʈε Linen õ Asphalt ׿ õ ޺ ̸ õ ϰ ´ٴ ߰ߴµ ̰ Asphalt ڰ ޺ յǾ ̴.
̵ õ ̿Ͽ ̶ 迡 ȯ ߴ.
ֱٿ ̱ KODAK Printing circuit ʷ Photo-resist ߰, SHIPLY, HUNT, McDermid, TOKYO OHKA, Mitshubishi, Hitachi, UCB-JSR ڰ ǿ ϰִ.

2. Photo-resist
Photo-resist Solvent, Polymer, Sensitizer Ǿ ְ, Solvent ߿ ۿϸ, Polymer Monomer õ · Pattern ִ Resist ü̴.

Sensitizer PAC(Photo Active Compound) θ⵵ ϸ, Polymer ϰų Positive) ʰ ϴ(Negative) ߰ Ѵ.