Sonkit Sealing Solutions
Semiconductors
Semiconductors
Metal seals Sealing solutions for extreme conditions
Semiconductors

In the semiconductor sector, metal ring seals are routinely used to avoid contamination and preserve equipment vacuum. These seals are designed to fit over a variety of components, including flanges, tubes, and ports, and are built from a flexible metal substance. From wafer processing to gas delivery, even the smallest contamination can significantly impact device performance. Sonkit's metal ring seals are essential components in semiconductor equipment, ensuring reliable sealing and protecting these sensitive environments. This document explores the applications, advantages, and real-world impact of Sonkit seals in the semiconductor industry.

Metal Seal Applications in Semiconductor Equipment

Sonkit metal ring seals find application in various pieces of semiconductor equipment, including:

  • Vacuum Processing Equipment:

These seals maintain the necessary vacuum levels in equipment used for deposition, etching, implantation, and other key processes.

  • Wafer Handling Equipment:

Sonkit seals prevent contamination in equipment used for handling and processing wafers, such as wafer carriers and cassettes.

  • Gas Delivery Systems:

These seals ensure the integrity of gas lines, valves, and ports, preventing leaks and maintaining the purity of gases used in semiconductor manufacturing.

  • Light Sources & Vacuum Chambers:

Sonkit seals are critical in maintaining the extreme vacuum requirements of light sources and vacuum chambers used in research and semiconductor manufacturing.

Metal Seal Advantages in Semiconductor Equipment

Sonkit metal ring seals offer several key advantages for semiconductor applications:

  • High Resistance to Chemical and Temperature Changes:

The materials used in Sonkit seals withstand harsh chemical environments and extreme temperatures (-270°C to 300°C), essential for the demanding conditions within semiconductor equipment.

  • Low Outgassing:

Sonkit seals have low outgassing rates, minimizing the release of contaminants into the vacuum environment, which is crucial for maintaining the high purity required in semiconductor processing.

  • High Sealing Performance:

These seals are designed to provide a reliable and tight seal, preventing contaminants from entering the equipment and maintaining the necessary vacuum conditions.

  • Ultra-Low Leakage Rate:

Sonkit seals are designed for ultra-low leakage, maintaining leakage rates below 1 × 10-12 Pa·m3/s, crucial for UHV applications.

  • Self-Adjusting Capability:

The spring-energized design compensates for material wear or temperature variations, preventing sealing failure and ensuring long-term reliability.

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Sealing Solutions In Semiconductor Equipment

Case Study - Metal Sealing Solutions for Ultra-High Vacuum (UHV) Applications

Ultra-high vacuum (UHV) applications in semiconductor manufacturing and scientific research present significant sealing challenges. These applications demand solutions capable of withstanding extreme conditions, including wide temperature ranges, variable pressures, and corrosive gases, while also adhering to strict purity and ultra-low leakage requirements.


Sonkit Industry Technology Co., Ltd. has developed a knife-edge, spring-energized metal C-ring specifically designed for these demanding UHV environments. This innovative seal replaces conventional stainless steel spring-energized metal C-rings, enabling effective compression and deformation with minimal bolt-tightening force. The unique knife-edge structure creates a true line seal, providing exceptional reliability in vacuum applications.


Key specifications of Sonkit's metal C-ring seals for UHV applications:

  • Seal Type - Knife-edge, spring-energized metal C-ring
  • Temperature Resistance - -270°C to 300°C
  • Pressure Tolerance - Ultra-high vacuum (UHV) to 1 bar
  • Medium - Corrosive gases, including fluorine, ammonia, and argon.

The Sonkit C-ring seal offers several key advantages:

  • Lower Bolt Tightening Force:

This seal requires less bolt tightening force than traditional metal seals, making it a suitable replacement for rubber and non-metallic seals.

  • Outstanding Performance in Extreme Environments:

It excels in high temperatures, high pressures, corrosive conditions, and ultra-low leakage applications.

  • Enhanced Safety and Long-Term Stability:

The design ensures enhanced safety and long-term stability for scientific research, semiconductor, and high-tech vacuum applications.

  • Ultra-Low Leakage:

The seal achieves a leakage rate of 1 × 10-12 Pa·m3/s, exceeding industry benchmarks for UHV applications.

Our Commitment to Quality and Excellence

As a leading metal ring seal manufacturer, Sonkit prioritizes quality and adheres to stringent standards, demonstrated by the following:

  • ISO 9001:2015 Certification:

We strictly implement the ISO 9001:2015 quality management system, ensuring full control and traceability of all Sonkit metal seals.

  • State-of-the-Art Facilities:

Our Shanghai factory features a high-standard office and production environment with advanced digital and intelligent processing and inspection equipment, providing a leading edge in manufacturing and quality control.

  • GE SRG Audit Approval:

Passing the GE SRG audit in 2023 underscores our commitment to quality assurance and industry best practices.

  • Premium Materials:

We use high-quality alloys such as Alloy 718, Waspaloy, and stainless steel for superior seal durability and performance.

  • Stringent Quality Control:

Our in-house test labs, equipped with advanced testing equipment, guarantee the highest quality standards through rigorous testing, including vacuum and helium leak tests.

  • Collaborative Partnerships:

We work closely with renowned universities and research institutes and have extensive experience collaborating with top 500 enterprises, further enhancing our quality and innovation.

Conclusion

Metal ring seals are an essential component in the semiconductor industry, as they provide consistent sealing performance and contamination protection.

Due to their resistance to hostile chemical conditions and high temperatures, they are suited for use in a variety of semiconductor equipment.


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