OEM P/N:
ESCT P/N:
PART TYPE:
OEM:
The 3/2-way solenoid valve supplied by ESCT Fab Support under part number ES3033-095 is a compact electro-pneumatic control device used throughout Applied Materials (AMAT) ion implantation platforms to switch compressed air or clean dry air (CDA) to pneumatically actuated components. The designation “3/2-way” describes its port and position arrangement: three ports (supply, working/output, and exhaust) and two switching positions (de-energised and energised). When a control signal is applied to the solenoid coil, the valve shifts state, either pressurising or venting the downstream actuator. This binary, on/off behaviour makes it the workhorse switching element behind almost every pneumatic motion and clamping function on the tool.
On AMAT Quantum and xR-class implanters, pneumatic actuation is pervasive. Isolation valves, gate valves, slit valves, wafer clamps, Faraday cup drives, beam stops, vacuum-line bellows valves and source-housing access mechanisms are commonly driven by single- or double-acting air cylinders. A 3/2-way solenoid valve sits between the CDA manifold and each of these actuators, translating a low-current electrical command from the tool controller or PLC into a discrete pneumatic action. Because so many of these movements gate the safe sequencing of vacuum, beam and wafer handling, the reliability of these small valves has an outsized effect on overall tool uptime.
Although physically small, the 3/2-way solenoid valve is a precision component. It combines a magnetic actuator, a precisely machined valve seat and spool or poppet, elastomeric seals, and an electrical interface that must operate millions of cycles without leakage, sticking or coil failure. ESCT supplies ES3033-095 as a form-fit-function replacement to keep these actuation circuits operating without the cost and lead time associated with sourcing through the original equipment channel.
In its de-energised state, a typical normally-closed 3/2-way valve blocks the supply port and connects the working port to exhaust, holding the downstream actuator vented. When the coil is energised, the internal element shifts to connect the supply port to the working port, pressurising the actuator while the exhaust path is sealed. This three-port logic is what allows a single solenoid valve to both extend and retract (or clamp and release) a single-acting, spring-return cylinder. Its principal functions across the implanter include:
Because the 3/2-way solenoid valve is fundamentally a mechanical switching device actuated by a magnetic field, its performance is judged by how cleanly and repeatably it shifts, seals and exhausts under realistic fab conditions. Two areas dominate: the pneumatic flow and sealing path, and the electromagnetic actuator that drives it.
The valve body is typically machined from brass, anodised aluminium or stainless steel, with a poppet or spool sealing against a precision seat using nitrile (NBR), fluoroelastomer (FKM) or comparable elastomers. The internal flow coefficient must be high enough to stroke the connected cylinder within the timing window demanded by the tool’s motion sequence, while leakage across the seat in either position must remain negligible.
The solenoid coil converts the control signal into the magnetic force that lifts the armature against the return spring. The coil must develop sufficient pull-in force at the rated voltage and tolerate continuous duty without overheating, while the armature and core surfaces must remain clean and free-moving to guarantee positive switching.
A single sluggish or leaking solenoid valve can stall an entire automated sequence, because pneumatic motions on an implanter are heavily interlocked. The downstream consequences of valve degradation include:
Continuous energisation, elevated ambient temperature and voltage transients gradually degrade the coil’s insulation, eventually leading to shorted turns, open windings or burnout. The valve then fails to shift on command, frequently producing an actuation timeout fault. Damaged leads, corroded connector pins or moisture ingress at the electrical interface can produce intermittent operation that is harder to diagnose.
Over millions of cycles the elastomeric seals harden, take a compression set or shed particles, while contamination in the CDA (oil mist, fine particulate or moisture) accumulates on the seat and sliding surfaces. This causes the valve to shift slowly, stick part-way, or leak across the seat, resulting in weak or inconsistent actuator stroke and slow exhaust.
Worn seats, damaged O-rings or a cracked valve body allow CDA to bleed continuously, either internally between ports or externally to atmosphere. Internal leakage causes the connected actuator to creep or fail to hold position, while external leaks waste compressed air and may raise audible hiss that masks correct operation. Both conditions undermine the deterministic timing the tool depends on.
Replacement should be carried out by a qualified technician following AMAT lock-out/tag-out and pneumatic safety procedures. Confirm the valve’s port configuration, voltage and connection type match the application before installation. A typical replacement sequence is:
Solenoid valves are high-cycle, consumable-grade components, and a fab running multiple implanters benefits from holding tested spares rather than waiting on extended procurement cycles. ESCT Fab Support supplies ES3033-095 to address exactly that need:
It describes the valve’s porting and switching: three ports (supply, working output and exhaust) and two positions (de-energised and energised). In a normally-closed configuration the working port is vented to exhaust when the coil is off, and connected to the pressure supply when the coil is energised, which is ideal for driving single-acting, spring-return pneumatic actuators.
No. ES3033-095 is supplied by ESCT Fab Support as a new, OEM-compatible replacement part. It is not an original AMAT-branded component, but it is selected and verified to match the form, fit and function of the original 3/2-way solenoid valve so it can be used as a direct substitute.
Check the coil voltage, the electrical connection type, the port and thread arrangement, and whether your actuator is single- or double-acting. Our team can help cross-check these details against your existing valve so the replacement drops into the same manifold position and control circuit.
The most common causes are coil burnout from continuous energisation and heat, seal hardening or contamination that makes the valve stick or shift slowly, and seat wear that causes internal or external leakage. Clean, dry, well-filtered CDA markedly extends valve life.
Yes. Many fabs replace high-cycle solenoid valves proactively during scheduled maintenance windows to avoid unplanned downtime. Always isolate and vent the CDA supply, lock out power, and leak-check and function-test the actuator after fitting the new valve.
The indicative lead time for ES3033-095 is approximately 3.5 months. We recommend holding it as a stocked spare for critical actuation circuits so that a failure does not translate directly into extended tool downtime.
The 3/2-way solenoid valve (ESCT P/N ES3033-095) is a small but critical electro-pneumatic switching device used across AMAT Quantum and xR-class ion implantation systems to drive isolation, gate, slit, clamp and beamline actuators from clean dry air. Its three-port, two-position design converts a low-current control signal into a discrete pneumatic action, and its reliable shifting, sealing and coil performance directly underpin tool sequencing, vacuum integrity and wafer-handling accuracy. Supplied as a verified form-fit-function replacement, ES3033-095 lets fabs keep these high-cycle actuation circuits running while avoiding the cost and lead-time burden of OEM-channel procurement.
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 the referenced Applied Materials part. 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.
Fill out the form below to request a quote for the part/s you require, making sure to include the OEM part number.
If the part you are looking for is not listed, get in touch and we will try to source it for you through our wide network of partners and suppliers.
