(1) Operate the single crystal furnace, and grow high-purity polycrystalline materials into single crystal ingots by Czochralski or zone melting single crystals;

(2) operating a rolling mill and other equipment to form a single crystal ingot;

(3) operating the heat treatment device to heat treat the formed single crystal ingot;

(4) testing the performance of the single crystal ingot with testing equipment;

(5) using a slicer to cut the single crystal ingot into wafers;

(6) rounding the wafer with a rounding device;

(7) chamfering, grinding, etching and polishing the wafer by using chamfering and grinding equipment;

And (8) sorting and detecting the single wafer by using detection equipment.

The following types of jobs belong to this occupation:

Single crystal preparation worker, single wafer processing worker, semiconductor thermoelectric refrigeration material preparation worker, crystal cutting worker, silicon wafer grinding worker, silicon wafer polishing worker and corrosion cleaning worker.