A professional who performs following duties to produce seed cores from silicon crystal ingots for use in crystal growing process. Responsibilities include:

• Tends saw that cuts ingot into specified lengths.
• Determines crystal orientation of ingot sections, using x-ray equipment, and draws orientation lines on ingot.
• Positions ingot sections on chuck of drill according to crystal orientation and activates drill that automatically removes seed core from ingot.
• Grinds seed core to smooth rough edges, using sanding machine, and x rays and marks seed core to indicate crystal orientation.
• Tends machine that cuts groove in seed core.
• Cleans seed core to remove contaminants, using ultrasonic and etching equipment.
• Wraps finished crystal in protective paper.
• Records production information.