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The Arc Power Supply carrying Applied Materials part number 1140-00153 is a dedicated discharge power converter that drives the arc within the ion source of AMAT Quantum and xR-class ion implantation systems. Inside the source chamber, a heated filament or indirectly heated cathode liberates electrons, and those electrons must be accelerated across a controlled potential to collide with feed-gas molecules and sustain a plasma. The arc supply provides exactly that potential and the current that flows through the resulting discharge, making it one of the most fundamental power converters in the entire source subsystem.
Physically the unit is a self-contained regulated power module, typically rack- or cabinet-mounted within the source power crate alongside the filament, extraction and bias supplies. It accepts a facility or distributed DC/AC bus input, conditions it through a switching or linear regulation stage, and delivers a tightly controlled output to the anode-cathode gap of the arc chamber. Because the source sits at a high extraction potential relative to ground, the arc supply floats at that potential and must maintain its regulation accuracy while referenced to a moving high-voltage platform.
When the arc supply drifts, ripples or trips, the consequences are felt immediately downstream: beam current becomes unstable, the analyser magnet sees a fluctuating ion population, and dose uniformity on the wafer suffers. For a tool whose entire purpose is to place a precise number of dopant atoms at a precise depth, a healthy, well-regulated arc supply is not a luxury, it is a precondition for production-grade implant results.
The arc supply works in concert with the filament/cathode supply, the source magnet supply and the extraction system to establish and hold a stable plasma. Its specific responsibilities within the source subsystem include the following:
The defining characteristic of an arc supply is its ability to hold a setpoint into a wildly varying, often negative-resistance load. Plasma impedance changes from near-open-circuit at ignition to a low, dynamic value once the discharge strikes, so the supply must transition smoothly between voltage-limited and current-regulated operation.
Because the source floats at extraction potential, the arc supply must withstand large common-mode voltages and survive the repetitive high-energy transients of arc-down events, where the extraction gap flashes over and dumps stored energy back toward the source.
The arc supply sits at the very head of the beam-generation chain, so its behaviour propagates through every downstream metric the fab cares about:
Repeated arc-down transients stress the output switching devices and rectifiers. Over time, MOSFETs or IGBTs, output diodes and their snubber components degrade, leading to lost regulation, audible buzzing, blown fuses, or a hard output failure that prevents the arc from striking at all.
Ageing electrolytic capacitors, drifting sense resistors and degraded reference circuits cause the regulator to deliver a current that no longer matches the readback. Operators may see a beam that will not hold its setpoint, slow tune drift between runs, or a mismatch between commanded and indicated arc current that masks the real source condition.
The floating high-voltage environment is hostile to insulation. Tracking across contaminated standoffs, breakdown of an isolation barrier, or arcing at corroded output terminals produces intermittent trips, ground-fault indications and erratic behaviour that worsens as the deck heats up, often the hardest faults to diagnose because they come and go with thermal and voltage cycling.
Replacing an arc supply means working on a high-voltage source deck, so the procedure must be carried out by qualified personnel following the AMAT service documentation for the specific implanter. The general sequence is as follows:
An arc supply is a single-point dependency: when it fails, the implant cell stops. Holding a qualified spare turns a multi-day outage into a planned swap. ESCT Fab Support helps fabs manage that risk by supplying the ES3033-131 as a form-, fit- and function-verified alternative to OEM stock, with advantages including:
It powers the arc discharge inside the ion source. By applying a controlled voltage between the cathode and the arc chamber anode and regulating the resulting current, it sustains the plasma from which dopant ions are extracted. Without a stable arc, there is no usable ion beam.
No. The ES3033-131 is supplied as an OEM-compatible replacement for AMAT P/N 1140-00153. It is not an original Applied Materials part and is not sold as such; it is offered as an equivalent unit verified to match the original in form, fit and function.
Typical symptoms include an arc current that will not hold its setpoint, unstable or noisy beam current, recurring arc-out or over-current trips, a mismatch between commanded and indicated current, and faults that come and go with deck temperature. These point toward regulation drift, semiconductor wear or isolation breakdown within the supply.
The ion source is held at the extraction potential so that positive ions are accelerated out of the chamber into the beamline. Every supply that connects to the source, including the arc supply, must therefore float at that same potential and rely on solid isolation barriers to keep its control electronics safely referenced to ground.
Installation should only be performed by personnel trained on high-voltage implanter source decks, following AMAT’s service procedures and full lockout/tagout. The deck stores hazardous energy, so de-energising, grounding and verifying isolation are mandatory before any work begins.
The ES3033-131 is matched to AMAT P/N 1140-00153 within the Quantum / xR-class source-power architecture. Because source crates can vary by tool generation and option set, we recommend confirming your OEM part number and configuration with our team so we can verify compatibility before despatch.
The Arc Power Supply, AMAT P/N 1140-00153 (ESCT ES3033-131), is the discharge power converter that ignites and sustains the plasma at the heart of an AMAT Quantum or xR-class ion source. Floating at extraction potential and regulating into a demanding negative-resistance plasma load, it underpins beam stability, dose accuracy and source life. When it drifts or fails, the implant cell stops, which is why a qualified, function-verified spare is one of the higher-value items a fab can keep on the shelf. ESCT Fab Support offers this unit as a cost-effective, compatibility-checked alternative to scarce OEM stock for owners maintaining ageing implant fleets.
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 1140-00153. 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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