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The Silicon Insert Ring identified by AMAT OEM part number 0200-03736K is a plasma-facing consumable ring that sits in the wafer-edge region of an Applied Materials etch process kit. The raw catalogue designation “(C2)SI INSERT RING(PRO)” denotes a silicon insert ring configured for a specific chamber position (the C2 configuration) within a process kit family, supplied here in the PRO build variant. As a silicon component, it forms part of the consumable hardware stack that surrounds the wafer and shapes the plasma sheath at the very perimeter of the substrate, where etch uniformity is hardest to control.
In a 300 mm plasma etch chamber the wafer edge is the most sensitive zone in the entire process. The transition from the conductive wafer to the surrounding dielectric and grounded hardware distorts the local electric field, and an insert ring of matched silicon is used to push that distortion outboard of the active die. By presenting a silicon surface that behaves much like the wafer itself, the insert ring extends the effective plasma boundary, keeps the sheath flat across the outermost rings of die, and protects underlying metal and ceramic hardware from direct ion bombardment.
Because it is consumed continuously by ion flux and reactive chemistry, the silicon insert ring is a scheduled replacement item rather than a permanent assembly. Maintaining a verified supply of this part directly underpins edge-die yield, particle performance and chamber availability, which is why it is one of the most frequently replenished items in any high-volume etch fab’s spares inventory.
Within the process kit, the silicon insert ring works alongside the focus ring, cover ring and supporting ceramic hardware to define the electrical and chemical environment seen by the wafer edge. Its silicon construction is deliberate: it erodes in a controlled, predictable way and contributes the same etch by-products as the wafer rather than introducing foreign species into the plasma. Its principal functions include the following.
The performance of an insert ring is governed almost entirely by the grade and finish of the silicon from which it is made, and by the dimensional precision of its plasma-facing geometry. Both attributes determine how the ring erodes, how cleanly it runs and how long it holds the process before drifting out of specification.
High-purity silicon is selected so the ring sputters and etches predictably without releasing metallic contamination into the chamber. Purity and resistivity also influence how the ring participates in the local RF environment and how uniformly it ablates over its service life.
The radial gap between the ring and the wafer, its flatness and its surface finish all feed directly into edge etch rate and particle generation. A ring machined and finished to OEM geometry seats correctly and reproduces the original process window.
Because the silicon insert ring controls the most marginal region of the wafer, its condition has an outsized effect on overall tool output. A worn, contaminated or incorrectly seated ring shows up first as edge-die loss and process drift, then as broader chamber instability.
Continuous ion bombardment steadily ablates the silicon, thinning the ring and opening up the wafer-edge gap. As the geometry changes, the sheath shape shifts and edge etch rate drifts, which is the dominant end-of-life mechanism and the reason the ring is a scheduled consumable.
Silicon is brittle, so thermal cycling, mechanical clamping stress and mishandling during preventive maintenance can crack or chip the ring. Fragments become particle sources and a fractured ring can disturb the local field, so handle and seat it carefully.
Reactive etch chemistries deposit polymer and redeposited material on the ring surface. Accumulated film flakes off as defects and alters the surface condition, degrading both particle performance and the predictability of erosion over the service interval.
The silicon insert ring is replaced during scheduled preventive maintenance when erosion reaches its wear limit or when particle and uniformity metrics indicate end of life. Work should follow the documented AMAT procedure for the specific chamber, with full lock-out and vent before any hardware is removed.
Silicon insert rings are wear items consumed on a predictable cadence, so a disciplined spares strategy keeps tools running without tying up excess capital. ESCT Fab Support supplies this part as a verified second-source alternative, helping fabs balance availability against cost.
It presents a silicon surface around the wafer edge that extends the plasma boundary outboard of the active die, flattens the sheath and shapes ion incidence at the perimeter. This keeps edge features uniform while protecting underlying metal and ceramic hardware from ion bombardment.
No. This is supplied as a 2nd Source NEW, OEM-compatible part. It is manufactured to match the form, fit and function of AMAT OEM P/N 0200-03736K but it is not an original AMAT part and is not sold as one.
Replacement intervals depend on the chemistry, RF power and run hours of your process, so they vary between fabs. The ring is treated as a scheduled consumable and is changed at its erosion wear limit or when edge uniformity and particle metrics indicate end of life.
The nominal lead time is 4-5 weeks. Because insert rings wear on a predictable cadence, we recommend holding a buffer stock and reordering against your planned preventive-maintenance schedule to avoid tool downtime.
The part is verified to the dimensional and material requirements of the OEM specification and the C2/PRO configuration. We recommend confirming your chamber type and process-kit configuration with our technical team before ordering so the correct insert variant is matched to your tool.
The most common causes are mechanical cracking or chipping from mishandling and clamping stress, accelerated erosion from aggressive recipes, and surface contamination or polymer build-up. Careful handling, correct seating and adherence to the maintenance procedure all extend service life.
The Silicon Insert Ring (AMAT OEM P/N 0200-03736K, ESCT P/N ES1099-007) is a high-purity silicon edge consumable that shapes the plasma sheath and protects chamber hardware at the wafer perimeter of AMAT 300 mm etch process kits. Its grade, geometry and surface finish directly determine edge etch uniformity, particle performance and yield, and it wears on a predictable schedule that rewards disciplined spares planning. Supplied by ESCT Fab Support as a verified 2nd Source NEW alternative on a 4-5 week lead time, it offers a cost-effective, fit-for-purpose route to keeping etch tools running at specification.
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.
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