Photolithography is a process widely used to create integrated circuits in the semiconductor industry. The term Photolithography is derived from the Greek words "phos," meaning light, and "graphia," meaning writing. Synonyms for Photolithography include Optics, Holography, Laser technology, Radiography, and X-ray Lithography. The method typically involves the deposition of a layer of photoresist on a substrate, followed by the exposure of the photoresist layer to light through a mask, and finally, the selective removal of the photoresist through a chemical process. The process results in the creation of intricate patterns on the substrate that are then used in the fabrication of ICs. Photolithography is a vital process in the semiconductor industry, enabling the production of smaller, faster, and more powerful ICs.