0200-03736K
SI INSERT RING(PRO)

Silicon insert ring (OEM P/N 0200-03736K), edge-region plasma consumable for AMAT-compatible TEL 300 mm etch systems

ESCT P/N ES1099-026, high-purity silicon insert ring for 300 mm plasma etch chambers

The Silicon Insert Ring is a high-purity silicon consumable that sits in the edge region of a 300 mm plasma etch chamber, immediately outboard of the wafer and within the focus-ring stack that surrounds it. As an “insert” component, it is designed to drop into a recess in the lower-electrode or edge-ring assembly, where it fills the radial gap between the wafer perimeter and the surrounding ceramic and metal hardware. In that position it is one of the parts most directly exposed to the plasma sheath, ion bombardment and reactive fluorine- or chlorine-based chemistries that drive the etch.

Because it is fabricated from silicon, the same base material as the wafer being processed, the insert ring presents a chemically matched surface to the plasma. This minimises foreign-species contamination and gives the part a predictable, self-consistent erosion behaviour as it consumes during normal operation. Its primary job is to shape and extend the plasma at the wafer edge so that the last few millimetres of the substrate etch at the same rate and profile as the bulk of the wafer.

In a high-volume fab, edge-region silicon parts such as this insert ring are scheduled consumables: they are tracked by RF hours and wafer count, replaced on a defined preventive-maintenance interval, and treated as a direct lever on edge yield and particle performance. Keeping a qualified ring on the shelf protects both tool availability and the quality of every wafer that passes through the chamber.

Functional role of the silicon insert ring in AMAT-compatible TEL etch platforms

The insert ring performs several overlapping electrical, chemical and mechanical duties at the wafer edge. Although physically simple, its geometry, purity and resistivity all influence how the plasma terminates at the substrate boundary:

• Extends the plasma uniformly past the wafer edge so that edge die etch at the same rate and profile as centre die, suppressing radial non-uniformity.
• Provides a silicon-matched surface that minimises metallic and particulate contamination of the wafer compared with exposing bare ceramic or metal hardware.
• Helps shape the sheath and ion trajectories at the perimeter, supporting vertical, controlled etch profiles at the outermost die.
• Acts as a sacrificial barrier that absorbs ion bombardment and chemical attack, protecting the more costly electrode and edge-ring hardware beneath it.
• Contributes to the RF return path and local impedance environment at the wafer edge, helping maintain stable coupling between the electrode and the plasma.
• Maintains a defined physical seat and gap geometry so the wafer, focus ring and edge hardware remain correctly positioned during clamping and processing.

Material and process performance

Silicon purity and erosion behaviour

The ring is machined from high-purity silicon, selected for low metallic content and controlled resistivity so that it neither injects contaminants into the process nor distorts the local electrical environment. Under fluorine and chlorine plasmas the silicon erodes gradually and predictably, allowing the part to be qualified for a fixed service life. Key material characteristics include:

• High-purity silicon with low trace-metal content to protect against cross-contamination of the wafer.
• Controlled resistivity to maintain a consistent RF return and sheath environment at the wafer edge.
• Uniform, predictable erosion that allows reliable end-of-life prediction by RF hours or wafer count.
• A chemically matched surface that reduces the introduction of non-silicon by-products into the etch.

Surface finish and dimensional control

The performance of an insert ring depends as much on its finish and tolerances as on its bulk material. Surface texture influences particle generation and polymer adhesion, while dimensional accuracy governs how cleanly it seats against neighbouring hardware:

• A specified surface finish that balances polymer adhesion against the risk of flaking and particle release.
• Tight thickness and flatness tolerances so the gap to the wafer edge stays within the qualified window.
• Concentric inner and outer diameters for repeatable, symmetric seating in the edge assembly.
• Clean, chip-free edges that resist localised erosion and arc initiation during processing.

Impact on tool performance and yield

Although it occupies only the outer ring of the chamber, the silicon insert ring has a direct and measurable effect on the wafers it surrounds. As it wears or if it is installed incorrectly, the consequences propagate quickly into edge yield and tool uptime:

• A worn or out-of-spec ring shifts edge etch rate and profile, eroding yield on the outermost die.
• Excessive erosion changes the local sheath and RF return, degrading across-wafer uniformity.
• Surface degradation and flaking raise on-wafer particle counts and defect density.
• Unplanned ring failure forces chamber downtime, an unscheduled wet clean and a requalification cycle.
• Inconsistent ring-to-ring quality drives chamber-matching problems across a tool set.

Common wear and failure modes

Plasma erosion and end of life

The dominant wear mechanism is gradual erosion of the silicon by ion bombardment and reactive chemistry. Over time the ring thins and its profile changes, widening the effective gap at the wafer edge and shifting edge etch behaviour. Once erosion passes the qualified limit, the part has reached end of life and must be replaced to hold edge uniformity.

Cracking and thermal stress

Silicon is hard but brittle, so repeated thermal cycling, mechanical clamping stress or careless handling can initiate cracks. A cracked insert ring can fracture in service, generating a sudden burst of particles and potentially scrapping wafers, and in the worst case dislodging fragments into the chamber.

Polymer build-up and particle generation

Etch by-products deposit as polymer films on the ring surface. If these films accumulate beyond the cleaning interval or adhere poorly, they flake and shed particles onto the wafer. Surface roughening from prolonged erosion accelerates this effect, making particle performance one of the clearest signals that a ring is approaching replacement.

Installation and replacement guidance

Replacing the silicon insert ring is a routine preventive-maintenance task, but it must be carried out under clean-handling discipline to protect both the part and the chamber. Follow the tool owner’s approved procedure; the sequence below is a general guide:

• Place the tool in a safe maintenance state, vent the chamber and confirm RF and gas supplies are isolated and locked out.
• Remove the wafer and any overlying focus or edge rings, noting their stack order for correct reassembly.
• Lift out the worn insert ring, inspect the seat for residue, erosion or damage and clean the recess per procedure.
• Unpack the new ring in a clean area using powder-free gloves, handling it only by its edges to avoid contamination.
• Seat the new ring squarely in its recess, confirming full, even contact with no rocking, tilt or gap.
• Reinstall the overlying rings and wafer-handling hardware in the original order and verify clearances.
• Pump down, run the prescribed season or burn-in recipe, and requalify edge uniformity and particle levels before returning the tool to production.

Spare parts strategy for AMAT-compatible etch consumables

Edge-region silicon consumables are replaced on a regular cadence, so a dependable supply of qualified rings keeps etch tools running. ESCT Fab Support supplies this insert ring as a cost-effective, form-fit-function-verified alternative that helps fabs control consumable spend without compromising performance:

• Second-source new part verified to the form, fit and function of OEM P/N 0200-03736K.
• High-purity silicon construction selected for low contamination and predictable erosion.
• Identified by ESCT P/N ES1099-026 for straightforward reordering and inventory tracking.
• Competitive pricing that lowers the total cost of ownership on a recurring consumable.
• A typical lead time of 4–5 weeks, supporting planned preventive-maintenance scheduling.
• Backed by ESCT’s focus on semiconductor fab spare and replacement parts.

Frequently asked questions

What does the silicon insert ring actually do?

It sits in the edge region of the etch chamber, just outboard of the wafer, and extends the plasma uniformly past the wafer perimeter. This keeps edge die etching at the same rate and profile as the rest of the wafer, while providing a silicon-matched, sacrificial surface that protects the underlying electrode hardware.

Is this an original OEM part?

No. It is supplied as a new, OEM-compatible second-source part verified to the form, fit and function of AMAT OEM P/N 0200-03736K. It is not an original OEM-branded component and is not sold as such, but it is engineered to perform as a direct replacement.

What is it made from?

The ring is machined from high-purity silicon with low trace-metal content and controlled resistivity. Using silicon, the same base material as the wafer, minimises contamination and gives the part the predictable erosion behaviour needed for reliable end-of-life planning.

How do I know when it needs replacing?

Most fabs track the ring by RF hours or wafer count and replace it on a fixed preventive-maintenance interval. Practical warning signs include drifting edge etch uniformity, rising on-wafer particle counts, visible thinning or surface roughening, and any sign of cracking or chipping during inspection.

What happens if a worn ring is left in service?

An over-eroded ring shifts the plasma sheath and RF return at the wafer edge, degrading edge etch uniformity and yield. As the surface roughens it also sheds particles, raising defect density, and a badly worn or cracked ring can fail abruptly, forcing unplanned downtime and a requalification cycle.

What is the lead time for this part?

The typical lead time is 4–5 weeks. Because this is a recurring consumable, we recommend aligning orders with your preventive-maintenance schedule and holding appropriate safety stock so a tool is never held up waiting for an edge ring.

Summary

The Silicon Insert Ring (OEM P/N 0200-03736K, ESCT P/N ES1099-026) is a high-purity silicon edge-region consumable for 300 mm plasma etch chambers. Seated outboard of the wafer within the focus-ring stack, it extends the plasma uniformly past the wafer edge, supports the RF return path, and acts as a sacrificial, chemically matched barrier that protects the electrode hardware beneath it. Its purity, surface finish and dimensional accuracy directly govern edge etch uniformity, particle performance and chamber matching, and it wears through gradual erosion, cracking and polymer build-up that define a finite service life. Supplied by ESCT as a new, form-fit-function-verified part at competitive cost, it gives fabs a dependable way to keep etch tools qualified and productive.

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 0200-03736K. 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.

Related parts

• 0200-03736K, (C2)SI INSERT RING(PRO)
• 0200-03736K, SI INSERT RING(PRO)
• 0200-03736K, SI INSERT RING(PRO)
• 0200-10446, INSERT RING 8′
• 0200-10446, INSERT RING 8
• 0200-05032, INSERT RING
• 0200-01239, INSERT RING TG, SUPER-e
• 0200-03555K, (A)SI INSERT RING