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The 2010-251838-11 (RING, FOCUS SH T3.3) is a precision-engineered focus ring used within Tokyo Electron plasma processing systems, designed to control plasma behaviour at the wafer edge and maintain uniform process conditions across the substrate.
Installed around the wafer within the process chamber, this focus ring helps shape the electric field and plasma sheath near the wafer perimeter. Its geometry and thickness profile (T3.3) are configured to support consistent edge performance, improve process repeatability, and protect adjacent chamber hardware from direct plasma exposure.
The 2010-251838-11 focus ring functions as a critical plasma-facing consumable in the chamber environment.
Core functions include:
This component operates alongside ESCs, chamber electrodes, insert rings, and other plasma-facing hardware.
The focus ring plays a direct role in controlling how plasma interacts with the wafer perimeter.
Key characteristics include:
The T3.3 specification is a critical dimensional feature that influences process tuning.
Performance features include:
As a plasma-facing consumable, the focus ring must withstand aggressive chamber conditions.
Durability features include:
The 2010-251838-11 focus ring directly affects edge control, process repeatability, and chamber hardware protection.
Potential impacts of wear or degradation include:
Replacing a worn focus ring restores plasma uniformity and helps maintain stable process control.
Continuous plasma exposure gradually changes the ring’s surface and dimensions.
Indicators include:
Wear or roughening of the ring surface can affect cleanliness and process stability.
Symptoms include:
As the ring wears, plasma distribution near the wafer perimeter becomes less controlled.
Indicators include:
For best performance:
The 2010-251838-11 (RING, FOCUS SH T3.3) is a Tokyo Electron OEM focus ring used within compatible plasma processing configurations.
Key considerations:
It identifies the part as a focus ring with a specific geometry and a T3.3 thickness profile, which affects plasma sheath behaviour and wafer edge control.
It helps shape the electric field and plasma density at the wafer edge. Without the correct ring condition and geometry, edge performance can drift and reduce overall process uniformity.
Wear can lead to edge defects, non-uniform etch or deposition, increased particles, and reduced usable wafer area, all of which can lower yield.
Typical early signs include visible erosion, rising particle counts, increasing edge non-uniformity, and gradual process drift near the wafer perimeter.
Sometimes yes, but only within process-defined wear limits. Once geometry changes begin affecting plasma behaviour, continued use increases the risk of defects and instability.
Even small dimensional changes can alter plasma distribution at the edge. The T3.3 profile is part of the process tuning, so maintaining that geometry is critical for repeatability.
Both. It acts as a sacrificial protective component, but it also directly influences plasma behaviour and therefore has a real process impact.
Yes. ESCT can help confirm part compatibility based on tool model, chamber configuration, and original OEM part requirements.
Replacement frequency depends on process chemistry, plasma intensity, usage hours, and acceptable wear thresholds. Most fabs use PM intervals plus process monitoring.
An incorrect profile can alter edge plasma conditions, reduce process uniformity, increase defects, and create instability that may also accelerate wear on nearby chamber hardware.
The 2010-251838-11 focus ring (RING, FOCUS SH T3.3) is a mission-critical plasma-facing consumable within Tokyo Electron systems, designed to control wafer edge plasma behaviour, support process uniformity, and protect chamber hardware. Its condition and dimensional accuracy directly affect yield, repeatability, and tool stability.
Sourcing through ESCT Fab Support gives you verified compatibility, cleanroom-ready handling, and faster availability, helping maintain stable chamber performance and consistent semiconductor manufacturing results.
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 2010-251838-11. 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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