Patent ID: 6835425
Filing Date: 2004-12-28
Classification: C23C,G02B,H01J,Y02T

Abstract:
A layer forming method comprising the steps of supplying power of not less than 1 W/cm2 at a high frequency voltage exceeding 100 kHz across a gap formed between one or more first electrodes each having a discharge surface and a one or more second electrodes opposed to said one or more first electrodes, at atmospheric pressure or at approximately atmospheric pressure to induce a discharge, and thereby generating a reactive gas in a plasma state by the discharge,relatively transporting a substrate through the gap in a transport direction whereby the substrate is exposed to the reactive gas in a plasma state to form a layer on the substrate; and wherein a total discharge surface is the total of the discharge surfaces of the one or more first electrodes and the length in a transport direction of the total discharge surface is not less than one tenth the length of the total discharge surface in a transverse direction.