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The Arc Power Supply identified by Applied Materials part number 1140-00151 is a high-current, low-voltage power conversion module that drives the arc discharge inside the ion source of AMAT Quantum and xR-class ion implantation systems. In these tools the ion source is the very first stage of the beamline: a feed gas such as boron trifluoride, phosphine, arsine or argon is introduced into the arc chamber, and an arc is struck between a heated filament (or indirectly heated cathode) and the chamber wall to ionise that gas into a dense plasma. The arc supply is the unit that sustains that discharge, delivering the regulated current that determines how much plasma, and ultimately how much beam, the source can produce.
Electrically, the arc supply sits within the source power crate alongside the filament (or cathode) supply, the arc-chamber bias circuitry and the extraction electronics, the whole assembly floating at the extraction high-voltage potential. It must convert incoming line or bus power into a tightly regulated arc output, typically a modest voltage of a few tens of volts standing across the discharge while delivering arc currents that can run from a fraction of an amp at strike-up to several amps in full production. Because it operates referenced to the source high-voltage deck, the unit is built with isolation, fast current regulation and solid protection against the inherently unstable behaviour of a gas discharge.
As a key contributor to source brightness and beam current stability, the arc power supply has a direct bearing on implant dose accuracy, wafer-to-wafer repeatability and the practical uptime of the implanter. A weak, noisy or intermittently faulting arc supply is one of the most common root causes behind unstable beam, frequent source faults and unscheduled source rebuilds, which is why a verified replacement such as ESCT P/N ES3033-133 is an important item to hold in the fab spares inventory.
Within the source subsystem the arc power supply performs the single most important energy-delivery task: striking and then maintaining the gas discharge that becomes the ion beam. Its behaviour is closely coupled to the filament/cathode supply, the gas flow controllers and the source magnet, and it is the parameter the tool controller modulates to hold beam current on setpoint. Its core functions include the following.
An arc supply is judged less on raw power rating than on how cleanly and quickly it regulates into a difficult, time-varying load. Two performance domains matter most: the quality of the regulated output, and the integrity of the control and telemetry interface back to the implanter.
The arc load is non-linear and can swing impedance abruptly as plasma density changes, so the supply must hold arc current on setpoint with minimal overshoot while tolerating restrikes and brief extinctions.
Because the module floats at the extraction potential, its isolation barrier and its analogue/digital interface to the source controller are as important as the power stage itself.
Because the arc supply sets plasma density at the very head of the beamline, its condition propagates through every downstream parameter the implanter cares about. A healthy unit is largely invisible; a degraded one shows up as productivity and yield loss long before it fully fails.
Years of switching into a violent, restriking load stress the power semiconductors, snubbers and magnetics. Switching devices can fail short or open, gate-drive circuitry can degrade, and the result is loss of regulation, an inability to hold arc current, or a hard no-output condition that takes the source down.
Electrolytic bus and filter capacitors lose capacitance and gain equivalent series resistance with thermal cycling and age. The early symptom is rising output ripple and a wandering arc that no longer holds beam cleanly; left unchecked it progresses to dropouts under load and eventual shutdown.
Operating on the high-voltage deck, the unit is exposed to flashover, tracking across contaminated surfaces and stress on its isolation barrier. Conductive source deposits, arcing at high-current terminals and degraded connectors can all cause intermittent faults, erratic telemetry or insulation failure that trips the supply offline.
The arc supply lives on the energised source high-voltage deck, so replacement must be treated as live-equipment work and carried out only by personnel trained on AMAT implanter source maintenance. The following sequence reflects good practice; always defer to the system’s own service procedure.
Source power modules are high-stress, consumable-adjacent items whose failure idles an entire implanter, so they are exactly the kind of part a fab should hold on the shelf rather than chase under pressure. ESCT supports that strategy with verified, ready-to-fit replacements.
It supplies and regulates the current that sustains the gas discharge inside the ion source arc chamber. That arc ionises the feed gas into the plasma from which the ion beam is extracted, so this supply effectively sets how much beam the source can produce.
No. This item is supplied by ESCT as an OEM-compatible replacement for AMAT P/N 1140-00151. It is not an original AMAT part; it is verified to match the original in form, fit and function so it can be used in its place.
Typical warning signs are beam-current drift or jitter, difficulty striking or holding the arc, repeated source faults, an inability to reach the required arc current, or rising output ripple seen on the source telemetry. These often appear gradually before an outright failure.
It is intended as a direct replacement for the AMAT 1140-00151 arc supply in the corresponding source crate. As source configurations can differ by generation and upgrade level, we recommend confirming the OEM part number on your existing module before ordering.
The module sits on the source high-voltage deck, so the work involves lock-out of the source power, verified discharge of the deck and use of grounding sticks. It should be performed only by technicians trained on AMAT implanter source maintenance, following the system service procedure.
Yes. Because a failed arc supply takes the whole implanter offline and source power modules are subject to high electrical stress, holding ES3033-133 as an on-the-shelf spare is a sound way to protect tool availability and avoid extended beam-down events.
The Arc Power Supply (AMAT P/N 1140-00151, ESCT P/N ES3033-133) is the regulated current source that strikes and sustains the arc discharge in the ion source of AMAT Quantum and xR-class implanters. By setting plasma density at the head of the beamline, it directly governs beam current, dose accuracy and source stability, and its degradation is a common cause of beam drift, source faults and lost production. Holding a verified form, fit and function replacement on hand is a practical way to keep an implanter running and to shorten recovery when a source supply fails.
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 1140-00151. 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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