The Czochralski process is a method of crystal growth used to obtain single crystals of semiconductors (e.g. silicon, germanium), metals (e.g. platinum, silver, gold), salts and synthetic gemstones. The process is named after Polish scientist Jan Czochralski, who invented the method in 1915 while investigating the crystallization rates of metals. Czochralski process used to produce high volume of Silicon single crystals.