Femtosecond lasers have gained wide recognition as a versatile and high quality tool for micromachining and laser ablations.Two major features have proved essential for quality micromachining: -The high peak power allows machining of virtually any material, including copper, glass, ceramics, which are often difficult to process with lasers. -The ultrashort pulse duration eliminates thermal effects, often responsible for unwanted features such as microcracks, molten debris.