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The Silicon Insert Ring (PRO), carrying AMAT OEM part number 0200-03736K and supplied by ESCT Fab Support under part number ES1099-015, is a high-purity silicon plasma-facing consumable used at the wafer edge of 300 mm plasma etch process chambers. As an “insert” ring, it is fitted into a surrounding carrier or cathode pocket so that its silicon surface forms part of the active plasma boundary immediately adjacent to the production wafer. In this position it works alongside the focus ring, edge ring and cathode hardware to define where the plasma terminates and how etch behaviour is controlled across the outermost millimetres of the wafer.
Silicon is chosen for this component because it is chemically compatible with fluorine- and chlorine-based etch chemistries and behaves, electrically and chemically, much like the silicon wafer it surrounds. By presenting a silicon surface at the edge of the wafer, the insert ring extends the effective process area and helps keep plasma density, ion energy and etch rate uniform right out to the wafer periphery, rather than letting them roll off abruptly where the wafer ends.
Like all plasma-facing edge consumables, the Silicon Insert Ring (PRO) is a sacrificial part. It is consumed gradually by ion bombardment and chemical attack, and is scheduled for periodic replacement as part of routine preventive maintenance. Holding a qualified replacement on hand protects edge yield and minimises unplanned downtime on a high-value 300 mm etch platform.
Within the etch chamber, the silicon insert ring sits at the transition between the wafer edge and the surrounding chamber hardware. Its job is to make that transition electrically and chemically continuous, so that the plasma does not “see” a sudden material or potential change at the wafer boundary. The principal functions it performs include:
The insert ring is manufactured from high-purity silicon, selected to match the chemical and electrical character of the production wafer and to keep particle and metallic contamination to a minimum. High purity is critical because the ring erodes directly into the active plasma; any impurities liberated during etching can transfer to the wafer surface. Tight control of resistivity, crystal quality and trace-metal content keeps the ring behaving predictably as it ages and does not become a yield-limiting contamination source.
Beyond purity, the ring must hold its dimensions and seat correctly under the thermal cycling of the etch process. Silicon offers good thermal conductivity and a stable, well-characterised thermal-expansion behaviour, which helps the ring maintain its position and gap relationships as the chamber heats and cools. Accurate inner and outer diameters, flatness and thickness let the insert sit flush in its carrier so that the plasma boundary it defines stays in the same place wafer after wafer.
Because the silicon insert ring governs conditions at the wafer edge, its condition has a direct and measurable effect on process results and on how many usable die come off each wafer. A worn, contaminated or incorrectly seated ring undermines exactly the region of the wafer that is hardest to keep within specification. The consequences of running a degraded ring include:
The dominant wear mode is gradual erosion of the silicon surface by ion bombardment and chemical etching. Over many RF hours the exposed faces thin and the edge profile changes shape, which shifts the plasma sheath and slowly degrades edge uniformity. This is expected, progressive wear and is the main reason the ring is treated as a scheduled consumable rather than a permanent part.
As erosion advances, the silicon surface roughens and can develop micro-pitting. A roughened surface sheds particles more readily and can flake, raising defect counts on the wafer. Once particle performance trends upward despite cleaning, the ring is at or beyond the end of its useful life and should be replaced before it begins to cost yield.
Silicon is brittle, so the ring is vulnerable to chipping or cracking from mishandling, mechanical shock or thermal stress, particularly at thin sections weakened by erosion. A cracked ring or one that is not seated flush in its carrier disturbs the local electric field and gas flow, causing arcing, asymmetric etch or sudden particle excursions. Careful handling and verified seating at installation are the best defences.
Replacement should follow the OEM-approved maintenance procedure for the specific chamber and should always be performed by trained personnel under proper vacuum, lock-out and ESD controls. The following sequence outlines good practice:
Silicon edge consumables are wear items that must be replaced on a predictable schedule, so a sound spares strategy treats them as recurring stock rather than emergency purchases. Sourcing ES1099-015 through ESCT Fab Support helps fabs keep etch tools running while controlling cost of ownership:
It is a plasma-facing silicon consumable fitted at the wafer edge of a 300 mm plasma etch chamber. It extends the silicon process surface beyond the wafer, helping to keep etch rate, uniformity and edge profile consistent across the outer die while protecting the chamber hardware behind it.
No. This is not an original OEM part. ES1099-015 is supplied as a new, OEM-compatible component sourced from a second source and verified to match AMAT OEM part 0200-03736K in form, fit and function. It is intended as a direct, cost-effective replacement for the original.
Silicon is used because it is chemically and electrically similar to the production wafer and is compatible with common fluorine- and chlorine-based etch chemistries. Presenting a silicon surface at the wafer edge minimises contamination and keeps the plasma boundary uniform, rather than introducing a foreign material that would disturb the process.
As a sacrificial consumable, the ring is replaced on a preventive-maintenance schedule set by accumulated RF hours, erosion measurements and particle or uniformity trends. Replacement interval varies with the process recipe and duty cycle, so it is best governed by each fab’s own qualification data rather than a fixed figure.
Silicon is brittle and contamination-sensitive, so it should be handled only with clean, powder-free gloves, gripped at the edges, and kept clear of mechanical shock. The carrier pocket should be clean before fitting, and the ring must seat flush and evenly with no gap or rocking to avoid arcing and particle problems.
The indicative lead time is 4-5 weeks. Because this is a recurring wear item, we recommend factoring this into preventive-maintenance planning and holding buffer stock so that a scheduled change-out is never delayed by procurement.
The Silicon Insert Ring (PRO), AMAT OEM P/N 0200-03736K and ESCT P/N ES1099-015, is a high-purity silicon edge consumable for 300 mm plasma etch chambers. By extending the silicon process surface to the wafer periphery, it controls edge etch uniformity, profile and particle performance while sacrificially protecting the chamber hardware behind it. As a predictable wear item, it benefits from a disciplined spares strategy, and ESCT Fab Support offers it as a new, second-source replacement verified to form, fit and function, with an indicative 4-5 week lead time to support planned maintenance.
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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