What is the refine zone?
Zone refining is a technique that companies can use in the production of highly clean crystals for components such as transistors. In this method, the impurities in the ingot or the weight of the metal are forced to one or the other through the melting line and the cooling phase. This leaves a piece of predominantly clean material available for use in seed crystals and other components. Creating this technique comes from the 20th century, because one of a number of methods invented by semiconductor manufacturers and similar companies to suit the need for very clean materials. The heating elements heat the entire cross -sections up to the melting point and create a zone in the middle of a solid ingot that is in a liquid state. Atomic levels are produced on the boundary between solid and liquid. It does not have to be visible, but their presencee could cause serious problems with products made using this ingot, which makes refine a critical part of the preparation.
Some dirt tend to reduce the melting point while others increase it. Dirt will clump around one end of the ingot. Through several passages, the techniques can push dirt and leave mostly pure ingot with some contamination at the remote end. This end can be removed to form a refined and very clean ingot. It should have a very stable crystalline structure because no dirt disrupts the grille between atoms.
This technique requires certain specialized equipment and a high level of control. The technician needs the right temperature for the component to avoid problems with the refining zone. It is also necessary to carefully control the speed during the refinement of the zone, as ingot is repeatedly moving through the equipment. Cleanliness in a larger working environment is also critical because the technicians do not want to introduce new materials to their cleaned ingots by manipulating them in contaminated areas.
After completing the zoneNY zones can carefully process and wrap the cleaned ingot for use in another device or transport to another area. Very careful controls are required throughout the process, including repeated control of cleanliness and material quality. This reduces the amount of waste in the production of semiconductors and similar components and limits the chance that dirt will travel downstream and cause a cascade of problems.