0200-10446
INSERT RING 8'

Insert ring 8" (OEM P/N 0200-10446), plasma-confinement insert ring for AMAT 300 mm etch chambers

ESCT P/N ES1099-017, Applied Materials (AMAT) compatible chamber insert ring for TEL-type 300 mm plasma etch process kits

The Insert Ring 8" (AMAT OEM P/N 0200-10446) is a precision annular consumable that fits within the lower electrode and process-kit assembly of a 300 mm plasma etch process chamber. Sitting between the wafer support and the surrounding confinement hardware, an insert ring of this class occupies the radial transition zone where the active wafer area gives way to the grounded or floating structures that close out the plasma volume. The nominal 8" designation reflects its bore and seating geometry within the kit stack, where it nests concentrically beneath or alongside the focus and cover rings that frame the wafer edge.

In a plasma etch chamber, every ring in the edge stack performs a distinct electrical and physical task, and the insert ring is the part that bridges the consumable rings to the more permanent chamber body. It provides a stable, dimensionally accurate seat that locates the rings above it, fills the gap between the cathode periphery and the chamber liner, and helps define the lower boundary of the confined plasma. Because it is exposed to reactive gas chemistries, ion bombardment and elevated temperatures, it is treated as a scheduled consumable rather than a permanent fixture.

Although this insert ring carries an AMAT part number, it is catalogued here for 300 mm plasma etch process kits of the TEL-type architecture, where it governs how cleanly the plasma is terminated at the wafer periphery. Small dimensional or material changes in this component shift edge electric fields, alter gas flow at the wafer rim and influence particle generation, so it has a direct and measurable bearing on edge die yield.

Functional role of the insert ring in AMAT 300 mm etch platforms

The insert ring is a multi-purpose interface part. It is not in direct contact with the active device area of the wafer, but its position at the boundary of the plasma sheath means it shapes the conditions experienced by the outermost dies. Its principal functions include:

• Providing a precise concentric seat that locates the focus ring, cover ring and any upper edge consumables relative to the wafer and electrode.
• Filling the radial gap between the cathode periphery and the chamber liner so that the plasma is confined to the intended process volume.
• Helping define the lower boundary of the plasma sheath at the wafer edge, which influences ion-trajectory angles across the outermost dies.
• Acting as a sacrificial barrier that protects the more costly and longer-lived cathode and liner surfaces from direct etch attack.
• Maintaining a controlled gap and surface profile that steers process gas and by-products away from the wafer rim toward the pumping path.
• Contributing to the electrical environment at the chamber edge, whether by remaining electrically isolated or by providing a defined return path, depending on its material and grounding scheme.

Material and process performance

Insert rings in this position are produced from process-compatible materials chosen to survive aggressive fluorine- and chlorine-based chemistries while contributing minimal contamination. The material grade and surface finish are as important as the dimensions, because they determine both erosion rate and particle behaviour over the service life of the part.

Plasma and chemical resistance

The ring must resist sputter erosion and chemical attack from the etch plasma while holding its profile within tight tolerance, so material selection focuses on low erosion rate and clean wear characteristics.

• Resistance to ion-assisted sputtering across the radial face exposed to the sheath edge.
• Chemical stability against the reactive species and by-products typical of dielectric and conductor etch recipes.
• Low intrinsic particle shedding so that erosion does not translate into added defectivity at the wafer edge.

Thermal and dimensional stability

Cyclic heating and cooling across each wafer pass impose thermal stress on the ring, so the material and form must remain dimensionally stable to keep seating gaps and concentricity within specification.

• Stable behaviour under repeated thermal cycling so the seating face does not warp or distort.
• Tight machining tolerances on bore, outer diameter and step features to preserve concentric location of the rings above it.
• Consistent flatness so that mating consumables sit evenly and gaps remain uniform around the full circumference.

Impact on tool performance and yield

Because the insert ring sets the geometry and electrical conditions at the wafer periphery, its condition feeds directly into process results on the outermost dies. A worn, cracked or incorrectly seated ring is a frequent root cause of edge non-uniformity and excursions:

• Edge etch-rate and critical-dimension drift as the ring profile erodes and the sheath shape at the rim changes.
• Tilted or distorted etch features on edge dies caused by altered ion-trajectory angles near the boundary.
• Increased particle counts and defectivity when eroded or chipped surfaces begin to shed material.
• Plasma-confinement instability if the radial gap to the liner changes, affecting confinement and process repeatability.
• Reduced mean time between cleans and shorter consumable-set life when a degraded insert ring accelerates wear on neighbouring parts.
• Lower edge die yield, which on a 300 mm wafer represents a meaningful share of total devices.

Common wear and failure modes

Plasma erosion and profile loss

The most predictable failure mode is gradual erosion of the exposed faces by ion bombardment and chemical attack. As material is removed, the ring profile changes, the effective gap geometry shifts and edge process performance drifts away from the qualified window, eventually requiring replacement on a planned interval.

Cracking and chipping

Thermal cycling and mechanical handling can initiate cracks or edge chips, particularly in brittle ceramic grades. Once a crack forms, it becomes a particle source and a site of accelerated local erosion, so any chipping found at preventive maintenance is grounds for immediate replacement rather than continued use.

Deposit build-up and seating errors

Polymer and etch by-product deposits accumulate on the ring and in its seating features over time. Flaking deposits drive particle excursions, while debris trapped under the ring at reinstallation causes tilt or poor concentricity that disturbs the entire edge stack and undermines uniformity.

Installation and replacement guidance

The insert ring is replaced during scheduled preventive maintenance, typically alongside the focus and cover rings as part of a coordinated process-kit refresh. Always follow the relevant tool maintenance procedure and observe full lock-out and vent protocols. A typical replacement sequence is:

• Bring the chamber to atmosphere following the approved vent and cool-down procedure, and confirm the tool is safely isolated.
• Remove the upper edge consumables in sequence, noting the orientation and stacking order of each ring as it is lifted out.
• Lift out the existing insert ring and inspect the cathode seat and liner interface for residue, scoring or damage.
• Clean the seating surfaces per the maintenance procedure so the new ring sits flat and fully concentric with no trapped debris.
• Fit the new insert ring with clean, gloved hands or approved tooling, seating it squarely and verifying it is fully home with no rock or tilt.
• Reassemble the focus ring, cover ring and remaining consumables in their original order and orientation.
• Pump down, leak-check, season the chamber and run qualification wafers to confirm edge uniformity before returning the tool to production.

Spare parts strategy for AMAT etch process kits

Edge consumables such as this insert ring are consumed on a predictable cadence, which makes proactive stocking a sound cost-of-ownership strategy. Sourcing through ESCT Fab Support gives fabs a verified, OEM-compatible alternative to single-source supply:

• Second-source new supply that reduces dependence on a single OEM channel and improves negotiating position.
• Parts verified to form, fit and function against AMAT P/N 0200-10446 so they drop into the existing kit without process re-qualification surprises.
• A typical lead time of 4–5 weeks, supporting planned preventive-maintenance scheduling and buffer-stock replenishment.
• Cross-referencing by both AMAT OEM and ESCT part numbers (ES1099-017) for clean inventory control.
• Cost savings versus OEM list pricing across a high-turnover consumable line.
• Technical support to confirm fit against your specific process-kit configuration before you commit to an order.

Frequently asked questions

What does the 8" designation on this insert ring mean?

The 8" figure refers to the nominal bore and seating geometry of the ring within the process kit, not to the wafer size. The ring itself is used in 300 mm plasma etch chambers, where it nests concentrically inside the lower electrode and consumable-ring stack.

Is this an original AMAT OEM part?

No. This insert ring is supplied as a second-source new, OEM-compatible component. It is not an original Applied Materials part, but it is manufactured and verified to match the form, fit and function of AMAT P/N 0200-10446 so it integrates into the existing process kit.

How often should the insert ring be replaced?

Replacement intervals depend on the etch chemistry, power levels and run rate of your process. Most fabs replace it on a fixed preventive-maintenance schedule tied to the focus and cover rings, and bring it forward if inspection reveals erosion, cracking or edge process drift.

Can I replace just the insert ring on its own?

It is technically possible, but because the insert ring locates the rings stacked above it, most maintenance teams refresh the surrounding consumables together. This avoids mixing new and heavily worn parts and gives consistent edge geometry after the service.

Will fitting this part require process re-qualification?

Because it is verified to OEM form, fit and function, it is intended to drop into the existing kit. As with any consumable change, we recommend running your standard post-maintenance qualification wafers to confirm edge uniformity before returning the chamber to production.

What is the lead time for ES1099-017?

The typical lead time is 4–5 weeks. We recommend holding buffer stock of edge consumables and aligning orders with your preventive-maintenance calendar so a ring is always on the shelf when the chamber is due for service.

Summary

The Insert Ring 8" (AMAT P/N 0200-10446, ESCT P/N ES1099-017) is a precision edge consumable for 300 mm plasma etch process kits. It locates the surrounding focus and cover rings, fills the radial gap to the chamber liner, shapes the plasma boundary at the wafer periphery and protects the longer-lived cathode and liner hardware. Because its condition directly affects edge uniformity, particle performance and edge die yield, it should be inspected and replaced on a disciplined preventive-maintenance schedule. Supplied as a second-source new part with a 4–5 week lead time, it offers fabs a verified, cost-effective alternative to single-source OEM supply.

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 Applied Materials part number 0200-10446. It is not an original OEM part and is not sold as one. It is not manufactured by, endorsed by, or affiliated with Applied Materials, and all manufacturer names and part numbers are quoted for identification and compatibility purposes only.

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