Some, like hexamethyldisilazane, are complex and difficult to pronounce. Others, such as boron, are simple elements found in the Periodic Table of the Elements. Metals , such as aluminum and copper, are used to conduct the electricity throughout the microprocessor. Gold is also used to connect the actual chip to its package. UV light is used to expose patterns on the layers of the microprocessor in a process much like photography.
Masks used in the chip-making process are like stencils.
When used with UV light, masks create the various circuit patterns on each layer of the microprocessor.