This animation will help you to understand what sputtering is and how sputter deposition works. If you want to learn more about Korvus and read about the sputtering process in detail, you can view the links below:
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⬡ Learn more about sputtering: korvustech.com/sputtering
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Video Transcript
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Most people are familiar with the three states of matter: solid, liquid, and gas.
However, plasma exists as a state apart. A plasma is a gas in which all the atoms have had some or all of their electrons removed, leaving them as positive ions.
These “thin films” are layers of material that range in thickness from single atoms to tens of thousands of them.
The sputtering process starts with placing the substrate in a vacuum chamber filled with inert gas atoms, such as Argon.
A voltage is applied between the chamber and the coating material, so that the coating material receives a negative charge and becomes a “cathode”.
When this voltage is applied, existing free electrons in the sputtering gas experience an electric field and accelerate away from the cathode.
They will then experience high-energy collisions with other neutral atoms in the gas, causing their electrons to be knocked off, turning them into ions.
This process continues until you have a plasma, and the negatively-charged coating material attracts these positive ions, causing them to fly at such high velocity that the coating particles “sputter off” and travel over to the substrate.
The mechanical nature of sputtering avoids the problems you may experience with other deposition methods.
Metals such as Tungsten are difficult to heat because it’s melting points is too high. And materials such as Platinum are too close to their evaporation temperature. Some compounds such as Nickel Oxide can even break up when heated by evaporation techniques.
Sputter systems come in different sizes, depending on the industry application.
At Korvus Technology, we’re the manufacturers of the HEX Series; a bench-top, customizable and modular thin film deposition system, providing support for several techniques, including magnetron sputtering.
So if you’re wondering how the HEX system may be of use to you, then get in touch with us today by filling in our online contact form so we can discuss what you’re looking for and how our system can help.
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