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AMAT 0020-34362
- Product Introduction: This component is a vital part of semiconductor process chambers, which are the core areas where various semiconductor manufacturing processes such as chemical vapor deposition (CVD), physical vapor deposition (PVD), and etching take place. It is engineered to withstand extreme process conditions, including high temperatures, high – pressure differentials, and corrosive chemical environments, ensuring the stability and reliability of the entire semiconductor manufacturing process.
- Technical Specifications:
- Material: Constructed from high – purity, corrosion – resistant alloys such as Hastelloy or special stainless steels.
Detailed content
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- These materials are selected for their ability to resist chemical attack from reactive gases used in semiconductor processes, like chlorine – based or fluorine – based etchants.
- Dimensional Tolerance: Has extremely tight dimensional tolerances, often in the range of micrometers. For example, the inner diameter of a cylindrical part may have a tolerance of ±0.005 mm to ensure proper fit and alignment within the process chamber, which is crucial for maintaining uniform process conditions across the wafer.
- Thermal Properties: Can operate in a wide temperature range, typically from room temperature up to several hundred degrees Celsius. It has a low coefficient of thermal expansion to minimize dimensional changes during temperature variations, preventing issues such as leakage or misalignment.
- Functional Features:
- Gas Distribution: In CVD processes, it may have a specially designed gas distribution system to ensure the uniform delivery of precursor gases to the wafer surface. This can include multiple gas inlets and a carefully engineered flow path to achieve consistent film thickness and composition across the entire wafer.
- Sealing Function: Equipped with high – performance seals to prevent gas leakage between different process zones or from the process chamber to the external environment. These seals are made of materials like perfluoroelastomers (FFKM) that can withstand high temperatures and chemical exposure.
- Thermal Insulation: Some parts of the component may incorporate thermal insulation materials to reduce heat transfer to the surrounding areas of the process chamber, helping to maintain the desired temperature profile and improve energy efficiency.
- Application Scenarios: Used in semiconductor fabrication plants (fabs) for the production of various semiconductor devices, including logic chips, memory chips, and power semiconductors. It is an essential component in process chambers for different process steps, such as the initial deposition of thin films on the wafer, the formation of device structures through etching, and the final passivation layers.
