UHV Vacuum Chambers
An Ultra-High Vacuum (UHV) vacuum chamber is a specialized enclosure designed to achieve and maintain extremely low-pressure environments, typically in the range of 10^-9 to 10^-12 torr or even lower. These chambers are crucial in scientific research, particularly in fields requiring ultra-clean and ultra-pure conditions, such as surface science, material physics, and semiconductor manufacturing.
MillstongTech possesses rich experience and expertise in UHV chamber manufacturing and UHV component fabrication, ensuring high-quality and high-performance solutions. We tailor the precise design of UHV vacuum chambers according to diverse experimental demands, guaranteeing they meet customers’ requirements for quality and performance.
As a leading global supplier and manufacturer, MillstongTech specializes in various categories of UHV chambers, including:
– Standardized Design UHV Chambers
– Customized UHV Chambers
– UHV Chambers for Academic Research Institutions


UHV Vacuum Chambers Manufacturer

Standard design UHV vacuum chamber
A standard design UHV (Ultra-High Vacuum) vacuum chamber refers to a pre-defined or commonly used configuration and layout for a vacuum chamber that conforms to established industry standards or specifications.

Customized UHV Chamber
A customized UHV (Ultra-High Vacuum) chamber refers to a vacuum chamber specifically tailored or designed according to unique and specific requirements of an experiment, research project, or industrial application.

Institutions for academic research UHV Chamber
These chambers are primarily employed in universities, research laboratories, and educational institutions where scientific investigations and experiments necessitate ultra-clean, controlled vacuum environments.
Features of UHV Vacuum Chambers
Extremely Low Pressure Levels
UHV vacuum chambers achieve and maintain exceptionally low pressure levels, typically below 10^-9 Torr. This ultra-low pressure environment minimizes gas molecules and contaminants, creating an extremely clean and controlled space for experiments and analyses.
High Purity and Cleanliness
UHV chambers provide a highly pure and clean environment by minimizing impurities, particles, and outgassing. The reduced presence of contaminants ensures precision and accuracy in experiments, especially in surface analysis and thin-film deposition.
Exceptional Sealing and Leak Tightness
UHV chambers are designed with high-quality seals and materials to ensure exceptional sealing and leak tightness. This prevents gas ingress from the external environment, maintaining the desired vacuum conditions inside the chamber.
Specialized Materials and Construction
These chambers are typically constructed using specialized materials, such as stainless steel or other high-grade alloys, which possess low outgassing rates, minimal surface contamination, and high resistance to corrosion. The construction and materials used contribute to maintaining the ultra-high vacuum environment.
UHV Vacuum Chambers Applications
Ultra-high vacuum (UHV) chambers find applications across diverse fields due to their ability to create and maintain extremely low-pressure environments. Some of the common applications of UHV vacuum chambers include:
- Scientific Research
- Semiconductor and Electronics Manufacturing
- Surface Analysis and Characterization
- Synchrotron Radiation Research
- Vacuum Coating and Thin-Film Technology
- Space Simulation and Testing
- High-Energy Physics Experiments
- Medical and Pharmaceutical Research


Our UHV chambers cater to a wide range of applications and configurations, including synchrotron radiation research, scientific research requirements, various specialized customer specifications, and equipment with functional requirements. Additionally, we provide standard ultra-high vacuum (UHV) degassing chambers.
Acceptance criteria for an Ultra-High Vacuum (UHV) chamber typically include:
Materials: Constructed using high-grade stainless steel like 304S.S., 304LS.S., or 316S.S., known for low outgassing and excellent corrosion resistance.
Surface Treatment: Interior surfaces undergo electrolytic polishing for a contaminant-free, smooth finish vital for maintaining high vacuum levels.
Leak Rate: Accepted leak rate is below 2 x 10^-10 mbar·l/sec, ensuring minimal gas ingress or leakage.
Vacuum Baking: After vacuum baking at 120°C for 24 hours, the warmed working pressure inside should be less than 7.5 x 10^-10 torr, removing residual gases and ensuring cleanliness.
Residual Gas Analysis (RGA): Total pressure inside should be under 1 x 10^-10 torr, and substances with a mass-to-charge ratio (45 amu or greater) should be less than 0.3% of total pressure, confirming chamber cleanliness.