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The Wired Magnet Filter Chassis, carried under Applied Materials part number 0090-90500 and supplied by ESCT Fab Support as ES3033-161, is a pre-wired sheet-metal enclosure that houses the filtering and interconnection hardware feeding the magnet circuits of an AMAT ion implantation system. In a Quantum or xR-class implanter, the analysing (mass-analysis) magnet and other beamline electromagnets draw large, tightly regulated direct currents from dedicated magnet power supplies. Before that current reaches the coils, it must be conditioned to strip out ripple, switching transients and conducted electrical noise. The chassis described here is the mechanical and electrical backbone that organises that filtering stage into a single, serviceable module.
Physically, the assembly is a fabricated metal chassis, the “CHASSIS” in the part name, into which filter components (chokes, capacitors and associated terminal blocks or busbars) are mounted and inter-wired at the factory, hence “WRD” for wired. “MAG FILTER” identifies its function: it is the magnet-supply filter. The result is a drop-in sub-assembly that bolts into the implanter’s power distribution bay, presenting defined input terminals from the magnet supply and defined output terminals to the magnet load, with the conditioning network already harnessed and dressed inside.
Because the magnet field directly sets the mass-resolving and beam-bending behaviour of the implanter, the stability of the current delivered through this chassis has a direct bearing on dose uniformity, energy contamination and angle control. A filter chassis that is degraded, contaminated or intermittently connected does not announce itself with a single clean fault; instead it tends to introduce subtle field instability that erodes process margin. For that reason the module is treated as a meaningful spare for any fleet running these AMAT platforms.
Within the implanter’s power architecture, the magnet filter chassis sits between the regulated magnet power supply and the magnet coil, performing several roles at once:
The chassis is built around the demands of a high-current, low-ripple DC feed. Its conductors, terminations and filter elements must carry the full magnet current continuously without excessive temperature rise, while the inductive and capacitive elements roll off the ripple and switching artefacts that any regulated supply produces.
Beyond smoothing, the chassis behaves as an EMI control element. The grounded metal enclosure and the bonding of filter cases and shields create a low-impedance return path that keeps conducted and radiated noise from migrating into nearby control wiring.
The magnet field is one of the most consequential analogue quantities in the entire implanter, and the filter chassis is what keeps the current behind that field clean. Degradation here propagates directly into process results:
Filter capacitors degrade over years of thermal and ripple-current duty, losing capacitance and developing higher equivalent series resistance. As they fade, ripple attenuation falls off and the magnet current becomes progressively noisier, often well before any protective device trips.
High-current bolted joints and harness terminations are subject to thermal cycling and mechanical vibration. Over time a connection can loosen, oxidise or fret, raising contact resistance, generating localised heat and discolouration, and in severe cases creating an intermittent open that mimics a supply fault.
Wiring insulation can embrittle with heat and age, and conductive dust or moisture ingress can bridge clearances inside the chassis. Either path erodes isolation between the magnet feed and ground, while corrosion of the chassis bond degrades the reference that the whole filter stage depends upon.
Replacement should follow Applied Materials service documentation for the specific platform and be performed only by personnel qualified to work on high-current power circuits. The sequence below is a general guide and does not replace the OEM procedure or site safety rules:
Because the magnet filter chassis underpins field stability across the whole beamline, holding a verified replacement on the shelf removes a single point of failure from the maintenance plan. ESCT Fab Support helps implanter owners manage that risk:
It is a pre-wired metal enclosure that holds the filter network (chokes, capacitors and terminations) conditioning the high-current DC feed to the implanter’s magnet coils, smoothing ripple, suppressing electrical noise and providing the grounded, organised interface between the magnet supply and the magnet load.
No. This chassis is supplied as a new, OEM-compatible part. It is not an original Applied Materials component and carries no OEM warranty, but it is verified to match the form, fit and function of AMAT P/N 0090-90500 so it performs the same role in the tool.
It is intended for the magnet power-distribution circuits of Applied Materials ion implantation systems in the Quantum and xR-class families. Always confirm applicability against your tool’s configuration and parts documentation before ordering.
Typical indicators are rising magnet-current ripple, unstable or drifting field readings, intermittent magnet-supply faults, noise appearing on beamline measurements, or signs of heating and discolouration at terminations inside the enclosure.
Individual capacitors or terminations can sometimes be serviced, but a full chassis swap restores the entire conditioned, factory-dressed wiring set at once, which is faster to qualify and avoids leaving aged components in a circuit that demands stable, low-ripple current.
Quote ESCT P/N ES3033-161 or AMAT P/N 0090-90500 together with your implanter model and configuration. Sharing the tool’s details lets our team confirm compatibility and advise on the correct revision for your power-distribution layout.
The Wired Magnet Filter Chassis (AMAT P/N 0090-90500, ESCT P/N ES3033-161) is the pre-wired enclosure that conditions the high-current DC feed to the magnet coils of AMAT Quantum and xR-class ion implanters. By smoothing ripple, containing electrical noise and providing a grounded, organised interface between magnet supply and load, it directly protects field stability and, with it, dose, energy and angle control. Failures tend to be gradual (ageing capacitors, loosening terminations and degraded grounding) which makes a verified spare a sensible hedge against quiet erosion of process margin and against sudden, production-stopping faults.
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 0090-90500. 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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