Inspection manner and production manner of silicon block, production manner of silicon wafer, production manner of solar cell and production manner of solar battery module

摘要

The present invention provides a method of inspecting a silicon block which is cut from a polycrystalline silicon ingot that is formed by uniaxial coagulation, comprising: a lifetime measurement step of measuring the lifetime of a silicon block minority carrier; and an oxygen concentration computation step of computing from the lifetime which is measured in the lifetime measurement step the oxygen concentration of the silicon block.