A substrate contains dissolved oxygen at a concentration of not more than 81017
atoms/cm3 and an impurity which is used as an acceptor or donor
at a concentration of not more than 11015 atoms/cm3.
In the substrate, an oxygen precipitation layer used to suppress occurrence of
a slip starting from the rear surface of the substrate is formed. On the substrate,
a silicon layer in which circuit elements are formed and which contains dissolved
oxygen with at concentration of not more than 81017 atoms/cm3
and an impurity which is used as an acceptor or donor at a concentration
of not more than 11015 atoms/cm3 is formed.