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Gasonics 95-3155
Product Description: The Gasonics 95-3155 is identified as an RF Impedance Match Network or a Tuner Circuit for plasma generation systems. This component is essential for maximizing power transfer from the RF generator to the plasma load by minimizing reflected power. It ensures stable plasma ignition and maintains process consistency.
Technical Specifications:
- Component Type: RF Matching Network / Impedance Tuner
- Frequency: 13.56 MHz (standard), with tunability for harmonics
Detailed content
- Power Handling: 1000W to 5000W (depending on configuration)
- Tuning Elements: Motorized vacuum variable capacitors or fixed capacitor banks
- Connectors: 50-ohm coaxial (N-type or APC-7) with water cooling
- Control: Analog voltage control or digital communication via RS-232/485
Functional Features:
- Automatic Impedance Matching: Rapidly adjusts capacitance to maintain a 1:1 Voltage Standing Wave Ratio (VSWR) during process transitions.
- Reflected Power Protection: Diverts reflected power to a dummy load to protect the expensive RF generator.
- Process Stability: Ensures consistent plasma density and ion energy, which is critical for uniform etch or strip rates.
- Water Cooling: Integrated cooling channels to manage thermal loads during high-power operation.
Application Scenarios:
- Plasma Etching: Used in dielectric and metal etch tools to maintain stable plasma.
- PECVD: Critical for maintaining stable deposition rates in thin film coating systems.
- Sputtering (PVD): Ensuring efficient power transfer to the target for high deposition rates.
- System Upgrades: Used to retrofit older tools with modern solid-state generators.
