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NEPhotolithography is an essential step in making computer processors. It starts with a silicon wafer, a thin slice of silicon that forms the base. The wafer is coated with a light-sensitive material called photoresist.
Ultraviolet light is then directed through a photomask, which works like a stencil of the circuit design, onto the photoresist. The light changes the exposed areas, making them easier to remove. This process creates detailed patterns on the wafer.
These patterns serve as the foundation for building the processor’s circuits and components. By repeating this process with different designs and materials, multiple layers are added to create the tiny structures inside a processor. Finally, the wafer is processed and polished to form the CPU, the brain of your computer.
This precise and innovative process makes the powerful technology we use every day possible.
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