Patent ID: 6896405

Claim:
A method of measuring a thermal resistance of resin, comprising: sandwiching a resin by a first member and a second member to form a laminated structure; applying a load through a third member and a fourth member to the laminated structure, causing heat to flow consecutively through said third member, said first member, said resin, said second member, and said fourth member, or consecutively through said fourth member, said second member, said resin, said first member, and said third member; measuring a thermal resistance including a thermal resistance of an interface between said third member and said first member, a thermal resistance caused by conduction of heat through said first member, a thermal resistance of an interface between said first member and said resin, a thermal resistance caused by conduction of heat through said resin, a thermal resistance of an interface between said resin and said second member, a thermal resistance caused by conduction of heat through said second member, and a thermal resistance of an interface between said second member and said fourth member while controlling the load so as to become a desired value on the basis of a measured value of the load applied to the laminated structure; and subtracting the thermal resistance of the interface between said third member and said first member, the thermal resistance caused by conduction of heat through said first member, the thermal resistance caused by conduction of heat through said second member, and the thermal resistance of the interface between said second member and said fourth member, which resistances have been obtained beforehand from thermal resistance measured, whereby the thermal resistance of the interface between said resin and said first member, the thermal resistance caused by conduction of heat through said resin, and the thermal resistance of the interface between said resin and said second member are determined as a thermal resistance including interface information of the resin layer.