Write the explained by Czochralski(CZ) technique and Bridgeman technique.
Write the explained by Czochralski (CZ) technique and Bridgeman technique . Czochralski technique :- This technique was developed by Czochralski and this process is used to grow silicon crystal from which silicon wafers are produced. The process is characterized by a liquid -solid monocomponent growth system.This technique involves the solidification of atoms from a liquid phase at an interface.It is used for Cz crystal growth is known as "puller".The speed of growth is determined by the number of sites on the face of the crystal and the specifies of heat transfer at the interface. Working:- Polycrystalline silicon is placed in the crucible and the furnace is heated to melt silicon.A suitably oriented seed crystal is placed over the crucible in the seed holder. The seed is dipped into the melt.The seed is then slowly pulled up.So freezin...