Patent ID: 7763146

Claim:
A disassembly method for a substrate mounting member that includes an electrostatic chuck bonded to a base member through an organic adhesive layer, said method comprising: inserting one or more support bodies through housing holes formed through the base member to contact spot facing portions on a rear face of the electrostatic chuck to suspend the substrate mounting member above a surface, wherein the one or more support bodies support the weight of the substrate mounting member without contacting the base member; heating up, to a thermal decomposition temperature of the organic adhesive layer, the substrate mounting member to soften and decompose the organic adhesive layer; and applying a separation load to the electrostatic chuck and the base member in a direction of pulling the electrostatic chuck and the base member apart from each other, thereby separating the electrostatic chuck and the base member from each other, wherein the thermal decomposition temperature is a temperature within a range from a thermal decomposition starting temperature to thermal decomposition ending temperature of the organic adhesive layer, and wherein the separation load is a self weight of the base member that is generated when the substrate mounting member is suspended from the one or more support bodies.