Undesired or unintentional elements or substances contaminating pure or nearly pure products Customers are requiring more and more knowledge about what type and how much of these impurities are present in our products
Any substance dissolved or suspended in water that alters the chemical and/or physical properties of the pure substance
Any substance dissolved or suspended in water which alters chemical and/or physical properties of the pure substance IODINE - A disinfectant that kills bacteria and prevents algae growth
{i} quality of being unclean or contaminated; state of being morally unclean or corrupt; insignificant material that should be removed; component or ingredient that spoils the purity of something
Impurities are substances that are present in small quantities in another substance and make it dirty or of an unacceptable quality. The air in the factory is filtered to remove impurities
An element added to the semiconductor substrate material (either germanium, silicon, or gallium arsenide) in the fabrication process to create a P-type or N-type region For germanium, the impurities are arsenic and bismuth For silicon, the impurities are boron, phosphorus, and aluminum and for gallium, arsenic and phosphorus
In semiconductor technology, a material such as boron, phosphorus, or arsenic added in small quantities to a crystal to produce an excess of electrons (donor impurity) or holes (acceptor impurity) Also called "dopant "