Patent ID: 8673404
Filing Date: 2014-03-18
Classification: B32B,C23C,Y10T

Abstract:
1. A method for manufacturing a barrier film, comprising forming, as a barrier layer, a silicon oxide film having an atomic ratio in a range of Si:O:C=100:(170 to 190):(40 to 50), a peak position of infrared-ray absorption due to Si—O—Si stretching vibration between 1030 to 1060 cm −1 , a film density in a range of 2.5 to 2.7 g/cm 3 and a distance between grains of 30 nm or shorter, on a substrate film which is composed of carbonaceous resin, using either of silicon having a sintered density of 80% or higher or SiO x (‘x’ is 1 to 2) having a sintered density of 80% or higher as a film forming material, in the presence of an oxygen gas by an ion plating method, wherein carbon generated by etching the substrate film composed of the carbonaceous resin is absorbed in the silicon oxide film when forming the silicon oxide film on the substrate film composed of the carbonaceous resin by the ion plating method, the distance between grains is a distance between grains formed by growing each growing nucleus when forming the silicon oxide film, and wherein the barrier layer on the substrate film is the barrier film, which has an oxygen transmission rate of which is 0.05 cc/m