A Simple Explanation
Thin film technology involves adding extremely thin layers of material onto a base surface, which is called the substrate. Each of those layers can be a few nanometers thick, which is thousands of times thinner than a human hair in comparison.
These layers are what make integrated circuits and many other electronic devices. In short, it makes the chips work in the way we want them to.
To create these thin films, manufacturers are using controlled methods like
- PVD (Physical Vapor Deposition): In this method, the material is vaporized in a vacuum and forms a coating.
- CVD (Chemical Vapor Deposition): In this method, a chemical reaction at high temperature creates the film.
- ALD (Atomic Layer Deposition): This builds the film one atomic layer at a time for extreme precision.
Each method serves a different purpose, which depends on what part of the chip is being built.
Why Thin Films Are Essential in Semiconductor Manufacturing
Building Smaller, Faster and More Efficient Devices
Chips become faster as well as smaller with each subsequent generation. Moore’s Law states that the number of transistors on a chip doubles about every two years. This is possible with thin films.
They allow engineers to create microscopic layers and circuits carrying electricity, isolate chip components, and shield against heat as well as corrosion.
If thin films are the arteries, semiconductors are the heart of technology.
