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AMAT 0090-41267
- Product Name: AMAT 0090 – 41267 Semiconductor Process Chamber Pressure Transducer
- Product Introduction: This pressure transducer is a critical component in semiconductor process chambers, used to measure the pressure inside the chamber during various manufacturing processes. Accurate pressure measurement is essential for maintaining proper process conditions, as pressure can affect the chemical reactions, material deposition rates, and etching characteristics in semiconductor processes.
- Technical Specifications:
- Pressure Range: Can measure a wide range of pressures, from very low pressures in the millitorr (mTorr) range for high – vacuum processes to higher pressures in the torr or even atmosphere range for some specialized processes
Detailed content
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- Accuracy: Has high measurement accuracy, typically within ±0.1% of the full – scale pressure or better. This level of accuracy is necessary to ensure that the pressure inside the process chamber is precisely controlled and monitored.
- Response Time: Has a relatively fast response time, usually within a few milliseconds, to changes in pressure. This allows for real – time monitoring and control of the pressure during the process, especially in processes with rapid pressure changes.
- Functional Features:
- High – Vacuum Compatibility: Designed to operate in high – vacuum environments, with materials and seals that can withstand low pressures without leaking. It may use special vacuum – compatible materials such as stainless steel and ceramic for the sensor and housing.
- Chemical Resistance: Resistant to corrosion from the process gases and chemicals used in the semiconductor manufacturing environment. The sensor surface may be coated with a protective layer to prevent damage from reactive gases.
- Digital Output: Provides a digital output signal, such as a serial communication protocol (e.g., RS – 232, RS – 485) or a digital bus (e.g., CAN bus), which allows for easy integration with the process control system. The digital output also reduces the risk of signal interference and provides more accurate pressure readings.
- Application Scenarios: Installed in semiconductor process chambers for various processes. In chemical vapor deposition (CVD) processes, it monitors the pressure to ensure that the gas flow and chemical reactions occur at the correct conditions for thin – film deposition. In etching processes, it helps to control the pressure to achieve the desired etching rate and profile.
