Abstract: For electronic circuit members including a high density fine pattern electrode and a flexible printed circuit, a reinforced connecting part includes a reinforcing fastener which is a substantially cylindrical section shaped element having edges defining an axial slit clamping the circuit members. The reinforcing fastener is formed of an alloy having both superelastic and shape memory characteristics at a temperature above the Martensite transformation temperature of the alloy. The alloy is brought to a temperature above the Martensite transformation temperature after the slit is opened at a temperature below the Martensite temperature of the alloy and the electronic circuit members are attached via the slit. The circuit members can thus be fastened with a substantially constant force over time due to the superelastic and shape memory characteristics of the alloy.

Abstract: A reinforcing fastener for fastening a chemical connector and an electronic circuit includes a substantially cylindrical section shaped element having edges defining an axial slit, wherein the element is formed of an alloy having both superelastic and shape memory properties. The slit is of such a size at a temperature below the Martensite transformation temperature of the alloy that the alloy is superelastically deformed when the slit is maintained at the same size while the alloy is above the Martensite transformation temperature. This results in the chemical connector being fastened to the electronic circuit with a substantially constant force over time.