CEL,OUTER ST(NEST)V2

PART DETAILS

2L10-251343-21
CEL,OUTER ST(NEST)V2

OEM P/N: 

2L10-251343-21

ESCT P/N: 

ES7099-042

PART TYPE:

2nd Source NEW

OEM: 

TEL
MORE INFO

3870-00150 Valve gate pneu-actr pendulum 200 ISO-F (for EMAX chamber) for Tokyo Electron systems

Precision pneumatically actuated pendulum gate valve for vacuum control, pressure regulation, and EMAX chamber process stability

Installed within the vacuum exhaust architecture, this pneumatically actuated pendulum gate valve regulates gas flow between the process chamber and vacuum pumping system while maintaining precise chamber pressure control during critical semiconductor manufacturing processes. In applications where vacuum stability directly influences plasma performance, etch uniformity, deposition consistency, and yield, so gate valve operation has to be reliable.

Because pendulum gate valves operate under continuous vacuum cycling, pneumatic actuation, particle-sensitive conditions, and demanding process environments, seal degradation, actuator wear, contamination buildup, positioning drift, or mechanical wear can contribute to pressure instability, vacuum leaks, process variation, or unplanned downtime.

The ESCT equivalent part number for this component is ES1011-022, supplied as a 2nd NEW OEM-compatible replacement designed to meet form, fit, and functional requirements aligned with the original TEL part.

Functional role within Tokyo Electron systems

Core functions include:

  • Supporting chamber pressure control during processing
  • Regulating exhaust flow to the vacuum pumping system
  • Providing chamber isolation when required
  • Supporting stable plasma and process conditions
  • Helping maintain repeatable pressure setpoints
  • Supporting uptime through reliable vacuum subsystem operation

Design and performance characteristics

Precision pressure regulation and vacuum control

The valve supports stable chamber pressure management.

Key performance characteristics include:

  • Accurate pressure regulation support
  • Stable exhaust flow control
  • Reliable vacuum isolation capability
  • Support for repeatable chamber operating conditions
  • Reduced risk of pressure-related process variability

Stable pressure control is critical to semiconductor process consistency.

Pneumatic actuation reliability

The valve uses pneumatic actuation for controlled movement.

Performance attributes may include:

  • Reliable valve opening and closing response
  • Stable actuation under repetitive cycling
  • Consistent positioning accuracy
  • Support for automated process control sequences
  • Reduced susceptibility to actuator-related drift

Reliable actuation helps maintain chamber performance and uptime.

Vacuum compatibility and continuous duty durability

Designed for semiconductor production environments.

Durability characteristics may include:

  • Stable operation under vacuum cycling conditions
  • Resistance to process-induced wear
  • Reliable seal integrity performance
  • Long service life under production duty
  • Support for repeatable maintenance outcomes

Reliable valve condition helps preserve chamber qualification and throughput.

Integration with related vacuum hardware

  • Chamber pressure controllers
  • Vacuum pumping systems
  • Vacuum gauges and sensors
  • Exhaust manifold hardware

Together these components support broader vacuum stability and process repeatability.

Impact on tool performance, yield, and uptime

Potential impacts of wear or degradation include:

  • Chamber pressure instability
  • Vacuum leakage concerns
  • Process repeatability issues
  • Plasma instability
  • Increased maintenance interventions
  • Reduced equipment availability
  • Unplanned downtime risk

Replacing a degraded gate valve can help restore vacuum stability and improve process reliability.

Common failure modes and diagnostic indicators

Seal wear or vacuum leakage

Seal degradation may gradually affect vacuum performance.

Indicators include:

  • Chamber leak-rate failures
  • Difficulty maintaining vacuum levels
  • Pressure instability
  • Increased pump load conditions
  • Vacuum-related alarms

Pneumatic actuator degradation

Actuation performance may deteriorate over time.

Symptoms may include:

  • Slow valve response
  • Incomplete opening or closing cycles
  • Positioning inconsistencies
  • Increased pneumatic faults
  • Reduced process stability

Contamination or mechanical wear

Process byproducts may affect valve operation.

Indicators include:

  • Particle accumulation
  • Increased friction during movement
  • Mechanical binding
  • Reduced flow control accuracy
  • More frequent maintenance requirements

Installation and maintenance best practices

To support best performance:

  • Follow OEM-approved handling procedures
  • Inspect seals and valve surfaces before installation
  • Verify pneumatic connections and operation
  • Evaluate related vacuum hardware during maintenance
  • Inspect for contamination and wear during PM intervals
  • Perform leak testing after replacement
  • Confirm stable pressure control before production return

OEM part number and compatibility

Key considerations:

  • Must match EMAX chamber vacuum architecture requirements
  • Mechanical and vacuum compatibility may be critical
  • Verify OEM specifications before replacement
  • Confirm integration with pumping and pressure control systems
  • Evaluate related wear components during maintenance

Why source from ESCT Fab Support

ESCT advantages

  • OEM-aligned form, fit, and functional verification
  • Quality-controlled inspection and testing processes
  • Verified subsystem compatibility support
  • Faster availability versus OEM lead times
  • Reduced Mean Time To Repair (MTTR)
  • Expertise in semiconductor vacuum and pressure control hardware
  • Cost-effective second-source procurement strategies

Frequently asked questions

1. What does the 3870-00150 pendulum gate valve do?

It regulates vacuum flow and chamber pressure while providing reliable isolation and pressure control within EMAX chamber systems.

2. Why is a pendulum gate valve important in semiconductor equipment?

Because precise vacuum and pressure control are critical to maintaining stable process conditions and repeatable wafer results.

3. What does “200 ISO-F” refer to?

It generally refers to the ISO-F flange configuration and valve size used for integration into the vacuum exhaust system.

4. What are signs the valve may need replacement?

Common indicators include:

  • Vacuum leak failures
  • Pressure instability
  • Slow valve response
  • Pneumatic actuator faults
  • Mechanical wear
  • Increased maintenance frequency

5. Can a worn gate valve affect process uniformity?

Yes. Chamber pressure fluctuations can directly influence plasma stability and process repeatability.

6. Can seal degradation contribute to downtime?

Yes. Vacuum leaks often result in chamber faults, qualification failures, or process interruptions.

7. How are gate valve issues typically diagnosed?

Issues may be identified through leak-rate testing, pressure monitoring, pneumatic diagnostics, PM inspections, or fault log analysis.

8. Can pneumatic system issues mimic valve failure?

Yes. Air supply, regulators, solenoids, or control faults may produce symptoms similar to valve degradation.

9. Does replacement require vacuum qualification afterward?

Yes. Leak testing, pressure verification, and chamber qualification should be completed after replacement.

10. What happens if the wrong valve is installed?

Incorrect hardware may cause vacuum incompatibility, pressure control issues, fitment problems, or subsystem faults.

11. Is this an original OEM TEL part?

No. This is supplied as ESCT P/N ES1011-022, a 2nd NEW OEM-compatible replacement aligned with the original TEL part requirements.

12. Is compatibility verification important before ordering?

Yes. Vacuum architecture, flange configuration, and subsystem compatibility should always be confirmed.

13. Can ESCT verify compatibility before shipment?

Yes. ESCT supports compatibility verification aligned with equipment requirements.

14. Are related vacuum control components available as well?

Depending on availability, associated throttle valves, vacuum hardware, pressure control assemblies, and chamber exhaust components may also be supported.

Summary

Its condition can directly influence process performance, chamber qualification, equipment uptime, and overall production reliability.

Sourcing through ESCT Fab Support as ES1011-022 provides a verified 2nd NEW OEM-compatible replacement with faster availability, semiconductor-focused expertise, and reliable production support.

Disclaimer: This part is supplied by ESCT Fab Support as a new, OEM-compatible second-source component, verified to the form, fit and function of Tokyo Electron part number 2L10-251343-21. It is not an original OEM part and is not sold as one. It is not manufactured by, endorsed by, or affiliated with Tokyo Electron, and all manufacturer names and part numbers are quoted for identification and compatibility purposes only.

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