Patent ID: 7632550

Claim:
A metal film forming method comprising: (a) arranging a resin substrate between facing electrodes; (b) supplying a reactive gas comprising an organometallic compound between the electrodes, the organometallic compound being selected from a group consisting of a titanium compound, a copper compound, an indium compound, a zinc compound, a tin compound, an aluminum compound, and a silver compound; (c) making the reactive gas into a plasma state by applying a voltage between the electrodes at an electricity of 1-50 W/cm 2 , a voltage frequency of 200 kHz-800 MHz, and a pressure of 20 to 100 KPa; and (d) forming a metal film on a surface of the resin substrate by supplying a reducing gas having a reducing property into the reactive gas in the plasma state, the reducing gas is one or more gases selected from the group consisting of hydrogen, ammonia, methane, ethane, hydrogen iodide, hydrogen sulfide, carbon monoxide, sulfur dioxide, hydrogen peroxide, and water.