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Dr. Ajith Thomas
RF Plasma Substrate Cleaner
Although the setup is simple and custom-built, it is highly functional and effective for our research needs. The high-voltage RF power supply was ingeniously developed by modifying an 800W computer SMPS, offering a cost-effective solution without compromising performance.
The system achieves a very low water contact angle, indicating excellent surface cleaning and activation—critical for improving adhesion and film quality in subsequent fabrication steps.

Plasma Cleaner
​Plasma glows inside the custom-built chamber. Right: Close-up view showing surface treatment of the substrate.
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