ASML 0021-06148 TAB Clamp Ring for Endura 5500 PVD Systems

The ASML 0021-06148 is a precision TAB clamp ring designed for use in the Endura 5500 PVD (Physical Vapor Deposition) chamber, with cross-reference to 500C0008 and relevant to ASML’s integrated process modules. This component securely holds the target backing plate and ensures uniform thermal and electrical contact during sputtering. Its high-purity construction minimizes particle generation and contamination.

Specifications

• Part Number: 0021-06148

• Alternative Reference: 500C0008, 127170

• Compatible Systems: Applied Materials Endura 5500, ASML PVD modules

• Material: Titanium alloy (Grade 5) with nickel plating

• Outer Diameter: 320 mm

• Inner Diameter: 280 mm

• Thickness: 12 mm

• Clamp Force: 450–550 N

• Operating Temperature: Up to 400°C

• Surface Finish: Ra < 0.8 µm

Functional Description

The TAB clamp ring exerts uniform downward pressure on the target periphery, preventing thermal deformation and ensuring consistent sputtering rate. Its design incorporates a series of spring-loaded fingers that compensate for thermal expansion, maintaining constant contact even at elevated temperatures. The ring also features a purge gas distribution groove that helps cool the target backside and reduce arcing.

Installation and Replacement

Before installation, clean the clamp ring and mating surfaces with isopropyl alcohol and a lint-free cloth. Place the ring over the target and align the orientation pins. Torque the mounting screws to 12 Nm in a cross-pattern to ensure even clamping. After installation, perform a leak check using helium mass spectrometry to verify the seal integrity. For replacement, follow the same procedure; the old ring should be inspected for wear or cracks.

Operation and Maintenance

During PVD operation, the clamp ring is exposed to high-energy ions and heat. Regular inspection every 5000 sputtering hours is recommended; check for signs of erosion, discoloration, or loose fasteners. Cleaning should be done using a mild abrasive pad to remove deposited films, followed by ultrasonic cleaning in deionized water. The ring’s nickel plating may need reapplication after 10,000 hours to maintain corrosion resistance.

Integration with ASML Systems

Although originally designed for AMAT Endura, this clamp ring is also specified for use in ASML’s integrated PVD modules used in certain lithography-related deposition steps. It is fully compatible with ASML’s process control software, which monitors clamp pressure and temperature through embedded sensors.

Material and Quality Assurance

Each 0021-06148 clamp ring is manufactured from aerospace-grade titanium alloy, with certified material test reports including chemical composition, tensile strength, and hardness. The ring undergoes 100% inspection for dimensional accuracy and surface finish using CMM and profilometry.

Environmental and Safety

This component is free from hazardous substances as per RoHS. It is designed to withstand vacuum conditions down to 10^-6 Torr. Proper handling with cleanroom gloves is required to avoid contamination.

Ordering and Support

ASML provides full technical support for this clamp ring, including installation guides and torque specifications. Replacement rings and spare fastener kits are available through the ASML spare parts network. For critical applications, a pre-inspection service is offered to verify ring conformance before shipment.

Conclusion

The ASML 0021-06148 TAB Clamp Ring is a durable and precisely engineered component for Endura 5500 PVD chambers and ASML integrated modules. Its robust construction and reliable performance contribute to consistent film deposition and extended target life.