Semiconductor device in which occurrence of slips is suppressed

   
   

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.

 
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