ASML Holding N.V. is a holding company. The Company is a manufacturer of chip-making equipment. The Company is engaged in the development, production, marketing, selling and servicing of semiconductor equipment systems, consisting of lithography systems. The Company's products include systems, and installed base products and services. The Company's principal operations are in the Netherlands, the United States and Asia. The Company offers TWINSCAN systems, equipped with lithography system with a mercury lamp as light source (i-line), Krypton Fluoride (KrF) and Argon Fluoride (ArF) light sources for 300 millimeter processing wafers for manufacturing environments for which imaging at a small resolution is required. TWINSCAN systems also include immersion lithography systems (TWINSCAN immersion systems). The Company also offers NXE systems, which are equipped with extreme ultraviolet (EUV) light source technology. The Company offers YieldStar, a wafer metrology system.