Chengxin Industrial Seal King

Cheng Hsin Seal: Precision Guardian of Semiconductor Manufacturing Processes

In nano-scale manufacturing process, each sealing point is the key to quality. With more than 20 years of industrial experience, Cheng Hsin Seal King provides the most reliable sealing solutions for your process.
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Faced Challenges

Do you have any of the following sealing problems in the semiconductor industry?

As process nodes continue to shrink to less than 3 nanometers, the semiconductor manufacturing environment has become more demanding than ever in terms of sealing systems. Any small leakage or contamination could result in the rejection of an entire batch of wafers, costing millions of dollars.
Can your seals support the high temperatures, corrosion and extreme vacuum of the 3 nm process without deteriorating and failing?
Any seal fugitive can lead to wafer scrap, are your current assemblies really zero particulate and zero contamination?
Can seals maintain consistent performance in the face of year-round operation, avoiding premature fatigue and forced downtime?

Let Xin Seal King help you solve the problem!

As semiconductor processes continue to advance towards 3nm or even smaller, equipment is faced with unprecedented high temperatures, extreme chemical corrosion, high vacuum and plasma environments. Seal King understands the critical impact of these challenges on process stability and wafer yield, and we offer a full range of proven precision sealing solutions to help you overcome micro-contamination, ensure long-term efficient equipment operation, and ultimately achieve superior production efficiency.

Semiconductor Seal Core Products

1

High-end Fluorine Rubber O-Ring

Perfluoroelastomer materials such as Kalrez®, Chemraz®, etc., with a temperature resistance of up to 327°C, suitable for all process stages.

2

Customized Gasket

Customized gaskets for various applications including flange gaskets, valve seat gaskets, and more.

3

Pipe Connections

Ultra-high purity VCR and Swagelok joint seals ensure zero leakage in the gas system.

4

Vacuum Cavity Seal

Large chamber seals ensure extremely high vacuum below 10-⁹ Torr.

Comparison of Semiconductor Seal Material Specifications

Different process environments require different grades of sealing materials. Below is a comparison of the properties of the main materials we supply to help you quickly find the most suitable choice.

Material Grade Maximum operating temperature Chemical Tolerance Main Applications
Kalrez® 6375 327°C Excellent (with plasma) Etching, CVD chamber
Chemraz® 505 316°C Excellent (General Process) Pumps, Valves
Viton® ETP 204°C Good (Organic solvent) Wet Processing, Cleaning
PTFE 260°C Superior (Inert) Corrosion chemicals
Selection Suggestions: Our application engineers can help you select the most cost-effective material solution for your specific process conditions, striking the best balance between performance and cost.

Key Challenges in Material Selection

In advanced manufacturing processes, the choice of seal material is a complex engineering decision. Conventional rubber materials harden or soften at extreme temperatures and lose their elasticity; low-grade fluoroelastomers cannot withstand corrosion from certain process chemicals; and metal seals, while durable, can produce particulate contamination or fail due to mismatched coefficients of thermal expansion.

Chemical Compatibility Challenges

Chemicals vary greatly from process to process, from strong acids and alkalis to organic solvents, and it is difficult to find a universal material that will work for all applications.

Temperature cycling tolerance

Process equipment is often subjected to rapid temperature increases and decreases, and the sealing material must maintain stable sealing performance after thousands of temperature cycles.

Stringent Cleaning Regulations

Fugitive gases and particle shedding from the material itself must be minimized, thanks to special material formulations and precision manufacturing processes.

Why choose Bearing Seal King?

Cheng Hsin Seal King has been plowing into the semiconductor industry for more than twenty years, we are not only a seal supplier, but also your manufacturing process partner. Our team consists of material scientists, process engineers and application specialists to provide customized solutions for your specific needs.

Material Specialties

Cooperating with international top material factories, we provide high-grade fluorine rubber such as Kalrez® and Chemraz®, as well as a variety of materials such as FFKM and FKM.
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Program Understanding

In-depth understanding of the needs of CVD, PVD, etching, diffusion and other processes, to provide the most suitable sealing solutions.

Quality Assurance

ISO 9001 certified, 100% inspection shipment, provide complete material certification and test report.

Rapid delivery

Local warehouse in Taiwan, common specifications in stock, customized products 3-4 weeks delivery time

Technical Advantages of mid-day glare

Comprehensive Material Database

We have established a complete material and chemical compatibility database covering a wide range of process data. We can quickly provide you with the best material selection suggestions, effectively saving time and development costs, and accelerating product launch.

  • Chemical Compatibility Test
  • Temperature tolerance analysis
  • Compression deformation data
  • Analysis of Fugitive Gas

Customized Design Capabilities

For non-standardized requirements, our engineering team provides customized sealing solutions based on your equipment drawings and process parameters. We provide customized technical services from material formulation, dimensional design to surface treatment.

  • CAD Design Support
  • FEA Structural Analysis
  • Rapid Prototyping
  • Small batch trial production validation

Semiconductor Sealing Process Application Solutions

We offer optimized sealing solutions for different segments of the semiconductor process.

Film Deposition

CVD/PVD equipment sealing, high temperature and precursor chemical corrosion resistance

Dry Etching

Plasma etching chamber sealing, resistant to plasma erosion and fluoride attack

Wet Cleaning

Sealed chemical cleaning tanks, resistant to acids, alkalis and organic solvents

Heat Treatment

Diffusion and annealing furnace sealing, long-term stability at ultra-high temperatures

Quality Management System

In the semiconductor industry, quality is not a slogan, but the strict execution of each link. Cheng Hsin Seal has established a complete quality traceability system to ensure that every product delivered meets the highest standards.

01
Step 01

Raw material control

Only genuine materials are purchased, and each batch has a complete COC certificate.

02
Step 02

Process Monitoring

Key Size 100% Inspection, Optical Inspection of Surface Defects

03
Step 03

Performance Test

Compression permanent deformation, hardness, tensile strength batch sampling test

04
Step 04

Clean Packaging

Clean room environment packaging, vacuum sealed to prevent contamination

05
Step 05

Traceability System

Lot number management, traceable to all production records within 5 years.

Not only the material technology, but also the service!

Purchasing a seal is just the beginning, we offer full lifecycle technical support to ensure that your equipment is always running at its best.

Selection Consultation

Free material selection and design advice services to help you make the right decisions early in your project

  • Process Component Analysis
  • Material Compatibility Assessment
  • Cost-benefit analysis

Field Test

Small batch trial support to validate performance and reduce risk before formal introduction.

  • Sample Provided
  • Installation instructions
  • Performance Tracking

Education and Training

Seal knowledge training for your engineering and maintenance teams

  • Description of material properties
  • Installation Best Practices
  • Troubleshooting Tips

Continuous Support

7x24 technical hotline for quick response to emergencies

  • Technical Consultation Line
  • Failure Analysis Service
  • Improvement proposals
Customer Testimonials

Customer Success Stories

"The team has a deep understanding of our process requirements and not only sells products, but really helps us to solve our problems. After replacing the sealing material, the stability of our equipment has been greatly improved and the maintenance cost has been significantly reduced."

- Manager, Process Equipment Department of a leading foundry

"In an emergency shutdown incident, we delivered the special specification O-Ring to our factory within 4 hours so that we could resume production quickly. This kind of service response speed is rarely seen in the industry."

- Facility Engineer for a Memory Manufacturing Plant

"In the past three years of cooperation with Xin, the technical suggestions they provided have helped us optimize the sealing solutions for a number of process segments, saving us more than ten million dollars in cumulative maintenance cost."

- Purchasing manager of a power component factory

Take Immediate Action

Start optimizing your process seals today!

Our mission is to be the most trusted sealing solutions partner for semiconductor manufacturers, helping our customers improve process stability, reduce maintenance costs, and increase market competitiveness through continuous innovation and service excellence.

Free Technical Consultation

Our senior engineers will analyze your application requirements and provide professional material selection recommendations.

Sample Testing Services

Free samples are available for your hands-on testing and verification to confirm performance meets expectations.

Quick Quote Delivery

Quotes completed within 24 hours; rush orders delivered in 2-3 days to support your project timeline.
Are you ready to get started?

Ready to get started?

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