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The Ceramic Blade (AMAT OEM P/N 0020-82890) is a high-purity ceramic insulating component used within the source and extraction region of Applied Materials ion implanter platforms. Spanning the 125–150 mm size class, this blade-form ceramic provides rigid mechanical support together with reliable electrical isolation between conductive assemblies operating at widely different potentials. In an ion source, where extraction and arc-chamber hardware can sit tens of kilovolts apart from grounded structure, a dimensionally stable insulating blade is the only thing standing between controlled beam transport and a destructive flashover.
Manufactured from a dense technical ceramic, typically high-alumina (Al₂O₃) of 96% purity or greater, the blade is designed to hold its shape and its dielectric strength across the steep thermal gradients found close to a hot-cathode or RF source. Its flat, blade-like geometry allows it to act as both a mechanical spacer and a creepage barrier, locating extraction electrodes, insulator stacks or feedthrough hardware while maintaining the surface tracking distance needed to suppress arcing in a contaminated vacuum environment.
Because it operates in the harshest electrical and thermal zone of the implanter, the ceramic blade is a recognised consumable. Beam strike, sputtered metal deposition and thermal cycling progressively degrade its surface and edges, so it is routinely inspected and replaced during preventive maintenance to protect source stability, beam current and ultimately wafer yield.
The ceramic blade performs a combined structural and dielectric duty that few other materials could survive in this location. It must remain mechanically true and electrically insulating while exposed to ion bombardment, ultraviolet radiation, radiant heat from the arc chamber and the deposition of conductive films. Its principal functions include the following:
High-alumina ceramic is chosen for this blade because it combines very high volume resistivity with excellent dielectric strength and a service temperature far above that of any polymer insulator. This lets a relatively thin blade hold off the extraction or source potential while sitting close to a heat source that would carbonise or deform an organic material.
In a high-purity implanter source, the ceramic must not become a contamination source itself. Tight control of material purity and surface finish means the blade contributes neither metallic impurities to the beam nor excessive gas load to the vacuum, both of which would compromise process control.
A ceramic blade that is cracked, tracked or coated with conductive film no longer guarantees clean isolation, and the effects ripple through the entire implant process. Source stability, dose accuracy and uptime all depend on this unassuming insulator doing its job silently. The consequences of a degraded blade include:
Sputtered metals and source by-products gradually plate onto the blade surface, creating a semi-conductive layer that shortens the effective creepage path. Over time this produces leakage current, tracking marks and eventually carbonised arc tracks that permanently compromise isolation.
Repeated heating and cooling, combined with mechanical clamping loads, stresses the ceramic at edges and mounting points. Micro-cracks can propagate into through-cracks, and brittle edges may chip during handling or thermal shock, both of which create leakage paths and loose particles.
Direct ion and electron bombardment slowly erodes the blade faces, roughening the surface and exposing fresh tracking sites. A single high-energy flashover can pit or fracture the ceramic locally, after which the blade should be retired rather than returned to service.
Ceramic insulators are brittle and contamination-sensitive, so replacement should be carried out only by trained personnel during a scheduled source rebuild, following the relevant AMAT maintenance procedure. The following sequence outlines good practice:
Because ceramic blades are scheduled consumables, holding qualified stock removes them from the critical path of any source rebuild. ESCT Fab Support supplies the Ceramic Blade (ES227-0147) as a form, fit and function alternative to OEM P/N 0020-82890, giving fabs a dependable second source without compromising on quality. Key advantages include:
It describes the principal dimensional envelope of the blade, falling within the 125–150 mm range. This size class identifies the variant of the ceramic insulator used in the relevant source or extraction assembly, and you should always confirm the exact geometry against your tool configuration and the OEM part number before ordering.
No. This item is supplied as a new, OEM-compatible ceramic blade that is cross-referenced to AMAT OEM P/N 0020-82890. It is not an original Applied Materials branded part, but it is verified to match the original in form, fit and function so it can be used as a direct replacement.
It is manufactured from a dense, high-purity technical ceramic, typically high-alumina, selected for its high dielectric strength, thermal stability and vacuum compatibility. These properties allow it to insulate high-voltage hardware reliably while withstanding the heat and bombardment of the source region.
Replacement intervals depend on source type, beam species and duty cycle, so most fabs replace the blade on a preventive-maintenance schedule tied to source rebuilds. Any blade showing tracking marks, conductive deposits, chips or cracks should be replaced immediately regardless of elapsed run time.
Light surface deposits can sometimes be cleaned per the approved procedure, but ceramics with arc tracks, carbonised paths, chips or cracks must be retired. Once the dielectric surface is compromised, cleaning will not restore reliable isolation and reuse risks flashover and collateral damage.
The typical lead time is approximately 2.5 weeks. Maintaining buffer stock of this consumable is recommended so that a ceramic blade is always on hand for scheduled source maintenance and unplanned replacements.
The Ceramic Blade (AMAT OEM P/N 0020-82890, ESCT P/N ES227-0147) is a high-purity ceramic insulator that delivers both mechanical support and high-voltage isolation in the source and extraction region of Applied Materials ion implanters. Its dielectric strength, thermal stability and vacuum compatibility tie it to stable beam delivery, accurate dose control and clean wafer yield. As a scheduled consumable subject to film build-up, thermal cracking and sputter erosion, it should be inspected and replaced during planned source maintenance. ESCT Fab Support offers a verified, OEM-compatible equivalent with a short lead time to keep your implanters 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 0020-82890. 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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