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 advanced semiconductor equipment systems, exclusively consisting of lithography systems. The Company's products include systems and system related products. 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 approximately 300 millimeters processing wafers for manufacturing environments for which imaging at a small resolution is required. The Company develops and sells a range of product options and enhancements to its systems. It complements its scanner products with a holistic lithography portfolio of software and metrology products. The Company also offers YieldStar, a wafer metrology system. Its principal operations are in the Netherlands, the United States and Asia.