METHOD TO MAINTAIN THIN FILM AND MANUFACURE USING THE SAME

摘要

PURPOSE: A membrane maintaining method and a substrate product using the same are provided to stably maintain a membrane which is volatilized or exfoliated when exposed to the air, thereby improving the quality of a substrate product. CONSTITUTION: A main membrane with volatility is provided on a substrate(S3). A protection membrane which seals the main membrane is provided in order to prevent volatilization of the main membrane. An auxiliary membrane is provided in order to block the exposure of a side surface in the main membrane(S2). A cover membrane is provided in the upper part of the main membrane in order to protect the upper part(S4).