Patent ID: 6813134
Filing Date: 2004-11-02
Classification: H01L,Y10T

Abstract:
An electrostatic chucking device manufacturing method includinga step in which a polyimide film which constitutes a first insulation layer, a thermoplastic polyimide-based adhesive film having a film thickness of 5 to 50 &mgr;m, a metal foil which constitutes an electrode layer, a thermoplastic polyimide-based adhesive film having a film thickness of 5 to 50 &mgr;m and a film which constitutes a second insulation layer are sequentially superposed, a step in which a low-temperature compression bonding processing is performed at a heating temperature of 100 to 250Â° C. under pressure so as to form an electrostatic chucking sheet which is constituted by sequentially laminating the first insulation layer, the electrode layer and the second insulation layer, a step in which the electrostatic chucking sheet is superposed on a metal substrate by way of a thermoplastic polyimide-based adhesive film having a film thickness of 5 to 50 &mgr;m, and a step in which a low-temperature compression bonding processing is performed at a heating temperature of 100 to 250Â° C. under pressure so as to form a laminated structure which is constituted by sequentially laminating the first insulation layer, the electrode aver and the second insulation aver on the metal substrate, wherein the polyimide film which constitutes the first insulation layer and the thermoplastic polyimide-based adhesive film having a film thickness of 5 to 50 &mgr;m are preliminarily integrally laminated to form a first laminated sheet, the polyimide film which constitutes the second insulation layer and the thermoplastic polyimide-based adhesive film having a film thickness of 5 to 50 &mgr;m are preliminarily integrally laminated to form a second laminated sheet, and a metal foil is inserted between respective adhesive films of the first laminated sheet and the second laminated sheet, and the first laminated sheet, the second laminated sheet and the metal foil are subjected to a low-temperature compression bonding processing under pressure at a heating temperature of 100 to 250Â° C. so as to form the electrostatic chucking sheet.