MicroEtch screens are manufactured using photoetching technology. Photoetching enables designers to specify a straight hole or a tapered hole, which facilitates liquid filtration and backflow cleaning. Hole sizes range from 0.003 in. and up. Unlike stamping, photoetching yields a burr-free product resulting in cleaner more efficient screens with greater material integrity. These screens are said to feature higher tolerance hole sizes and greater dimensional stability than woven wire mesh. This makes them suitable in applications requiring frequent cleaning or in devices where there is mechanical contact. Unlike woven wire mesh screens, the fixed photoetched openings will not change through use.