TECHNOLOGY FOCUS - POLYMERS - Preferred Method: The method further comprises: (f) forming an isolation material (103) on surface of the molding plate, where the flexible substrate material is coated on an isolation layer formed by the isolation material; (g) a pressing step for compacting the flexible substrate material, the isolation material, and the molding plate with surface structure after the step of coating the flexible substrate material; (h) adhering the formed flexible substrate with surface structure to a hard substrate; (i) forming a second isolation material on surface of the flexible substrate with surface structure; (j) coating a second flexible substrate material on the second isolation material; (k) curing the second flexible substrate material; (l) demolding the cured second flexible substrate material; (m) forming a second flexible substrate with surface structure; and (n) a pressing step for compacting the second flexible substrate material, the second isolation material, the flexible substrate with surface structure, and the hard substrate adhered to the flexible substrate after coating the second flexible substrate material. In the method a depositing process is introduced to form the isolation material on the surface of the molding plate with surface structure. The curing steps (c) and (k) are baking processes. In the step (c), the baking step includes either: a first-stage baking under a temperature of 70-80 degrees C, and a second-stage baking under a temperature of 150-200 degrees C, where the first-stage or the second-stage baking process takes 1 hour; or (c1) a first-stage baking under a temperature of 50 degrees C for 30 minutes, (c2) a second-stage baking under a temperature of 170-250 degrees C for 30 minutes, and (c3) a third-stage baking under a temperature of 210 degrees C for 1 hour. In the step (k), the baking step includes the steps (c1)-(c3) as above per se. Preferred Components: The molding plate is substantially made of silicon oxide. The isolation material and the second isolation material are substantially made of silicide. The flexible substrate material and the second flexible substrate material are substantially made of: polyimide; or a mixture substantially of organic polyimide and inorganic silicon oxide. EXAMPLE - No suitable example given.