Why Optical Lithography is Important?
Why Optical Lithography is Important? Optical lithography (also known as optical microlithography) is the technique used to produce a pattern of light beams on the surface of a substrate (typically, a silicon wafer), using the interference of light waves passing through this substrate. The resulting pattern is used to create the desired feature in a mask, which is then used to produce a photoresist layer in a subsequent process. The photo-resist pattern, which contains the desired recessed feature, is then transferred to the silicon wafers , where additional steps may be performed to produce the final device. Optical lithography is a process by which patterns onto a flat surface of a semiconductor material, such as silicon, are created with a machine called a lens. Optical lithography is an amazing technology to have at your disposal. It has applications that are diverse, and yet some don't even realize its potential. For example, a few years ago, the idea of a phone with a built-...