To provide a fixing member used for fixing a semiconductor element to a substrate circuit by compression bonding.

The body part of a cylindrical elastic core body 1 is wound with 30-500 turns of a fibrous heat shrinkage continuous body 2 in coil-shape, excepting within 0.2 mm at both ends of the body part of the elastic core body 1. Diameter at the body part of the cylindrical elastic core body 1 in the longitudinal central part thereof is 10-70% of the average diameter at both ends of the cylindrical elastic core body 1. The fibrous heat shrinkage continuous body 2 is thermally shrunk to fasten the cylindrical elastic core body 1 in the body core direction and the form is changed in the longitudinal direction of the body.