Vaisala Announces Transition from PR-33-S to Vaisala Polaris PR53S Semiconductor Process Refractometer

Vaisala has officially announced that the PR-33-S Semiconductor Process Refractometer and its associated accessories are approaching end-of-life and will be replaced by the next-generation Vaisala Polaris PR53S Semiconductor Process Refractometer.

This transition reflects Vaisala’s long-term commitment to providing advanced measurement solutions for the semiconductor industry while ensuring continued product availability, technical support, and future technology development.

For semiconductor manufacturers relying on precise chemical concentration monitoring, the Vaisala Polaris PR53S Semiconductor Process Refractometer represents the future of reliable and accurate inline process measurement.

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PR-33-S End-of-Life Schedule

According to Vaisala’s official announcement, the product phase-out schedule is as follows:

End of Sale

December 31, 2026

New orders for the PR-33-S Semiconductor Process Refractometer and related accessories will no longer be accepted after this date.

End of Delivery

March 31, 2027

All confirmed orders placed before the end-of-sale date will be fulfilled by Vaisala.

End of Support

Five (5) years after End of Delivery

Vaisala will continue to provide:

• Factory technical support
• Service and maintenance support
• Product assistance and troubleshooting

Spare parts availability will remain subject to stock availability.

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Why Upgrade to the Vaisala Polaris PR53S Semiconductor Process Refractometer?

The semiconductor industry demands increasingly precise process control to ensure product quality, yield optimization, and operational efficiency.

The new Vaisala Polaris PR53S Semiconductor Process Refractometer has been developed to meet these evolving requirements with enhanced performance, improved connectivity, and long-term product support.

The Polaris product family ensures that semiconductor manufacturers can continue benefiting from Vaisala’s proven refractometer technology while preparing for future production challenges.

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Key Benefits of the Vaisala Polaris PR53S Semiconductor Process Refractometer

High-Precision Chemical Concentration Measurement

The PR53S is specifically designed for semiconductor applications requiring accurate real-time monitoring of:

• CMP slurry concentration
• Hydrofluoric acid (HF)
• Hydrochloric acid (HCl)
• Sulfuric acid (H₂SO₄)
• Ammonium hydroxide (NH₄OH)
• Cleaning chemicals
• Photoresist processing solutions

Enhanced Process Reliability

The Vaisala Polaris PR53S Semiconductor Process Refractometer delivers continuous inline measurement, enabling:

• Improved process consistency
• Reduced chemical waste
• Better product quality control
• Increased manufacturing yield

Robust Design for Harsh Semiconductor Environments

The sensor is engineered to withstand demanding semiconductor manufacturing conditions, including aggressive chemicals and continuous operation.

Advanced Digital Connectivity

The Polaris platform supports modern industrial communication protocols, allowing seamless integration into:

• PLC systems
• SCADA platforms
• Manufacturing Execution Systems (MES)
• Automated process control systems

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Long-Term Product Availability and Support

One of the key advantages of migrating to the Vaisala Polaris PR53S Semiconductor Process Refractometer is Vaisala’s commitment to ongoing product development and lifecycle support.

The continued expansion of the Polaris refractometer family ensures:

• Future technology updates
• Long-term spare parts availability
• Extended technical support
• Improved system compatibility

This provides semiconductor manufacturers with confidence when planning long-term investments in process monitoring equipment.

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Benefits for Semiconductor Manufacturers

By upgrading to the Vaisala Polaris PR53S Semiconductor Process Refractometer, semiconductor facilities can achieve:

Improved Process Control

Real-time concentration measurement helps maintain stable process conditions and reduce process variability.

Reduced Operating Costs

Accurate chemical monitoring minimizes chemical consumption and reduces waste generation.

Higher Product Quality

Continuous monitoring helps maintain critical process parameters and improve production consistency.

Future-Proof Technology Investment

The Polaris platform ensures compatibility with future manufacturing requirements and industry developments.

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Filterfine Vietnam – Official Vaisala Partner in Vietnam

As an authorized Vaisala partner, Filterfine Vietnam provides comprehensive support for semiconductor manufacturers seeking advanced process measurement solutions.

Our services include:

✅ Product consultation and application evaluation

✅ System design and integration support

✅ Installation and commissioning

✅ Calibration and maintenance services

✅ Technical support from Vaisala-certified specialists

Whether you are currently operating a PR-33-S system or planning a new semiconductor production line, our team can help you identify the most suitable solution for your process requirements.

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Conclusion

The announcement of the PR-33-S end-of-life marks an important transition toward the next generation of semiconductor process measurement technology.

The Vaisala Polaris PR53S Semiconductor Process Refractometer delivers enhanced performance, long-term support, and future-ready capabilities for modern semiconductor manufacturing environments.

Organizations currently using PR-33-S systems are encouraged to begin evaluating migration plans to ensure uninterrupted operation and continued access to Vaisala’s industry-leading refractometer technology.

For more information about the Vaisala Polaris PR53S Semiconductor Process Refractometer, contact Filterfine Vietnam today.