Float Zone Process

The Float Zone (FZ) process is a method for producing very pure silicon crystals used in electronics. It involves melting a small region of a silicon rod with a focused heat source, like a high-intensity lamp or laser, while the rest remains solid. This molten zone is slowly moved along the rod, pushing impurities ahead or behind due to the different properties of molten versus solid silicon. As a result, the silicon becomes extremely pure and defect-free, ideal for high-performance electronic components like semiconductors.