Toppan Photomasks is a company that provides photomasks. Its products include phase shift masks (PSM), flip-chip ball grid arrays (BGAs), on-chip color filters, and dimming films. The company offers lithography engineering, frame generation, optical proximity correction (OPC) development, feasibility studies, and prototyping services. Toppan Photomasks caters to automotive, foundry, LED manufacturing, bio-nanotechnology, education, and other markets.