A semiconductor device is provided which includes an N-type semiconductor layer and a P-type semiconductor layer coexisting in the same wiring layer without influences on the properties of a semiconductor layer. In order that the server obtains user information and offers high grade service to product users, the products to be sold are prepared in condition that the data for connecting to the server is stored and the software for connecting to the server and initiating the dialog between the product and the server is installed. Flow in a central lumen of the cryosurgical instrument has oscillating character; the refrigerant is provided on the internal surface of the distal cryotip in the form of separated portions.