Photolithography and patterning technology are at the core of TOK's businesses. TOK offers unique and high value-added materials for fabricating flat panel displays, semiconductors and devices used in the life sciences. TOK’s functional polymer designs are constantly evolving and improving through open innovation with our customers and supply partners. TOK has recently developed a line of superior performing high and low refractive index chemical formulations. These materials are available in formats that can be used in photolithography, nano-imprint lithography and ink jet printing process equipment.