The present invention relates to a bonding method or an apparatus for projecting a conductive element from a nozzle onto an object to be bonded and electrically bonding the object to be bonded and the conductive element. The method of invention comprises the steps of: preparing the conductive element having an outer diameter with a curvature radius larger than a curvature radius of a portion of an opening of the nozzle which is in contact with the conductive element; pressurizing and attaching the conductive element to the opening of the nozzle; and supplying a compressed gas into an inner space of the nozzle and projecting the conductive element in a solid phase state onto the object to be bonded.