LAMINATE, METHOD FOR PROCESSING SAME, AND METHOD FOR MANUFACTURING FLEXIBLE DEVICE

摘要

　The objective of the present invention is to provide a laminate having good adhesion between a polyimide film and an inorganic substrate, and also allowing easy and quick separation of the polyimide film from the inorganic substrate. The present invention provides a laminate having an inorganic substrate, and a polyimide film formed on the inorganic substrate, wherein the laminate has the following characteristics: (1) the polyimide film is a layered film containing a polyimide resin layer (A) and a polyimide resin layer (B), the entire surface of the polyimide resin layer (A) contacting the inorganic substrate, and a part of the polyimide resin layer (B) formed on the surface of the polyimide resin layer (A) contacting the inorganic substrate; (2) the adhesive strength between the polyimide resin layer (A) and the inorganic substrate is 2N/cm or less; (3) the adhesive strength between the polyimide resin layer (B) and the inorganic substrate exceeds 2N/cm; and (4) the polyimide resin layer (B) contacting the inorganic substrate is hygroscopically treated and made capable of separating from the inorganic substrate.