The Bridgeman technique is a method of growing single crystal An ingot is a mass of metal or semiconducting material, heated past the melting point, and then recast, typically into the form of a bar or block. More generally, these objects are typically cast into a specific shape with the aim of rendering them easy to handle. Additionally, ingots may... ingots or A boule is a term used to describe a single crystal ingot produced by synthetic means. In the semiconductor industry they can be mades by a number of methods, such as the Bridgeman technique, or Czochralski process. A long, usually circular rod is produced. A semiconductor crystal boule is normally... boules.

The method involves heating polycrystalline material in a container above its melting point and slowly cooling it from one end where a A seed crystal is a small piece of single crystal material from which a large crystal of, usually, the same material is to be grown. The large crystal can be grown by dipping the seed into a supersaturated solution, into molten material that is then cooled, or by growth on... seed crystal is located. Single cystal material is progressively formed along the length of the container. The process can be carried out in a horizontal or vertical geometry.

It is a popular method of producing certain A semiconductor is a material that is an insulator at very low temperature, but which has a sizable electrical conductivity at room temperature. The distinction between a semiconductor and an insulator is not very well-defined, but roughly, a semiconductor is an insulator with a band gap small enough that... semiconductor crystals, such as Gallium arsenide (GaAs) is a chemical compound composed of gallium and arsenic. It is an important semiconductor, and is used to make devices such as microwave frequency integrated circuits (ie, MMICs), infrared light-emitting diodes and laser diodes. The electronic properties of GaAs are superior to silicons. It has... gallium arsenide where the The Czochralski process is a method of crystal growth used to obtain single crystals of semiconductors, metals (e.g. palladium, platinum, silver, gold) and salts. The most important application may be the growth of large cylindrical ingots, or boules, of single-crystal silicon. High-purity, semiconductor-grade silicon (only a... Czochralski process is more difficult.