0190-23117
TABLE POSITIONING 3 POS 2" TRAVEL 10LBS PAYLOAD

3-Position table positioning stage, 2′ travel, 10 lbs payload (OEM P/N 0190-23117), linear positioning assembly for AMAT etch and CVD systems

ESCT P/N ES1011-018 · Applied Materials-compatible three-station linear positioning table

The 3-Position Table Positioning Stage (AMAT OEM P/N 0190-23117) is a precision linear positioning assembly designed to translate a payload of up to 10 lbs through a 2″ (approximately 50.8 mm) stroke and to index it accurately between three discrete, repeatable positions. Within Applied Materials etch and CVD platforms it functions as a sub-system that carries, presents and retracts a mounted load, typically a sensor head, optical assembly, mechanical actuator, fixture or service component, to and from defined work stations along a single axis of travel. The “3-position” designation indicates that the stage is engineered to stop and hold at three calibrated detents rather than across a continuous range, making it ideal for applications where a handful of fixed setpoints must be hit reliably, thousands of cycles in succession.

Mechanically, an assembly of this kind combines a guided carriage running on a linear bearing or rail, an actuation element such as a lead screw, pneumatic cylinder or solenoid-driven mechanism, and a set of hard stops or position sensors that define the three index points. Because semiconductor process tools operate in environments where vibration, particle generation and dimensional drift all directly affect device yield, a positioning table that introduces play, backlash or stiction can quietly degrade tool performance long before it fails outright. That is why the integrity of this comparatively small assembly matters out of proportion to its size.

As a supporting motion component, the positioning stage sits at the interface between the tool’s control system and the physical fixture it moves. It must accept a command, drive to the correct station, settle within tolerance and hold there against the static and dynamic loads imposed by the 10 lbs payload, all without shedding particles or losing repeatability. ESCT supplies this part as a form-, fit- and function-compatible replacement so that maintenance teams can restore that motion path without waiting on extended OEM lead times.

Functional role of the positioning stage in AMAT etch and CVD platforms

The core job of this assembly is deterministic, repeatable motion along one axis between three fixed stations, while supporting and stabilising a payload of up to 10 lbs. In practice that role breaks down into several discrete functions:

• Carrying a mounted payload (sensor, optic, fixture or actuator) up to 10 lbs and translating it through the full 2″ stroke without sag or deflection.
• Indexing precisely between three defined positions, for example a retracted/home station, an intermediate station and a fully extended work station.
• Holding each position against gravity, process forces and ambient vibration so the payload stays within its positional tolerance during dwell.
• Providing repeatable end-of-travel registration via hard stops or detents so that each cycle returns to the same coordinate.
• Feeding position confirmation back to the tool controller through limit switches, proximity sensors or encoders, where fitted, to close the motion loop.
• Constraining the payload to a single guided axis, rejecting off-axis loads and keeping the carriage square to the rail throughout travel.

Mechanical performance

Travel, load and positional repeatability

The defining specifications of this stage are its 2″ linear stroke and its 10 lbs rated payload. Performance against these figures depends on the stiffness of the guide system and the precision of the index mechanism. A well-maintained assembly should return to each of the three stations with minimal positional scatter cycle after cycle, and should do so without measurable backlash when the load is reversed.

• 2″ (~50.8 mm) usable linear travel along a single guided axis.
• 10 lbs (~4.5 kg) rated payload, including the mass of any mounted fixture and its hardware.
• Three discrete, repeatable index positions defined by hard stops or sensed detents.
• Low backlash and minimal lost motion on direction reversal for consistent registration.

Guidance, smoothness and particle control

Because the stage operates in or near a process environment, its mechanical behaviour must remain smooth and clean over a long service life. The linear bearing or rail should run freely without stiction, the lubrication should stay captive rather than migrating, and the moving surfaces should not generate particulate that could contaminate adjacent process volumes.

• Smooth, low-friction travel free of stick-slip across the full stroke.
• Captive, appropriately specified lubrication that resists migration and outgassing.
• Corrosion-resistant carriage, rail and fastener materials suited to fab conditions.
• Minimal particle generation from bearing surfaces, end stops and any cable management.

Impact on tool performance and yield

A positioning stage that no longer hits its three stations cleanly does not always announce itself with a hard fault. More often it degrades gradually, and the symptoms surface elsewhere, in sensor misalignment, marginal mechanical clearances or intermittent interlock trips. The consequences of a worn or out-of-tolerance assembly include:

• Positional drift that pushes the mounted payload outside its alignment window, undermining whatever measurement or action it performs.
• Inconsistent dwell position from cycle to cycle, introducing run-to-run variability that is hard to trace.
• Position-sensor faults or missed detents that trigger interlocks, abort sequences and unplanned downtime.
• Particle generation from a dry or worn bearing that contaminates nearby process surfaces and erodes yield.
• Increased cycle time as the controller compensates for sluggish or hesitant motion.
• Mechanical collisions or fixture damage if a station overshoots due to failed hard stops or backlash.

Common failure modes

Bearing and guide wear

The linear bearing or rail carries the full payload through every cycle, so it is the most heavily loaded element. As lubrication depletes or contaminants intrude, friction rises, travel becomes notchy and lateral play develops. Worn guides introduce backlash and allow the carriage to cock under off-axis load, which degrades repeatability at all three stations and can shed particulate.

Actuator and index mechanism faults

The element that drives motion, whether a lead screw, pneumatic cylinder or solenoid mechanism, wears, loses preload or develops leaks over thousands of cycles. A tired actuator may fail to reach a station, overshoot it, or hesitate mid-stroke, while worn detents or hard stops let the index points drift away from their calibrated coordinates.

Position sensing and feedback errors

Where limit switches, proximity sensors or an encoder confirm position, these devices and their wiring are prone to intermittent faults from flex fatigue, contamination or drift. A sensor that no longer reports a station cleanly causes the controller to flag the motion as failed, halting the sequence even when the mechanical stage itself is sound.

Installation and replacement guidance

Replacement should be carried out by a qualified technician following the relevant Applied Materials service procedures, with the tool placed in a safe, de-energised and, where applicable, depressurised state. The following sequence outlines a typical approach:

• Isolate the tool: lock out electrical power, vent or isolate any pneumatic supply and confirm the work area is safe before starting.
• Document the existing setup, cable routing, pneumatic connections, fixture orientation and the as-found position of each of the three stations, before disturbing anything.
• Disconnect sensor leads, control wiring and any air lines, capping or labelling each connection for correct reassembly.
• Remove the mounted payload and unbolt the old positioning stage from its mounting interface, supporting the assembly as the final fasteners are released.
• Mount the new stage, torque the fasteners to specification and verify the assembly sits square and true to its reference surface.
• Reconnect wiring and air supply, refit the payload, then manually or under low power confirm free, unobstructed travel across the full 2″ stroke.
• Calibrate and verify all three index positions, confirm sensor feedback and run repeatability checks before returning the tool to production.

Spare parts strategy for AMAT etch and CVD tools

Motion sub-assemblies like this positioning stage are precisely the kind of low-visibility component whose absence stalls a tool for weeks if it is not stocked. Holding a verified replacement on the shelf turns a potential extended outage into a planned, short maintenance window. ESCT supports that strategy with:

• Form-, fit- and function-compatible replacements that drop into the same mounting interface as OEM P/N 0190-23117.
• A new, unused part supplied under ESCT P/N ES1011-018 for traceable inventory control.
• A stated 4-week lead time, supporting realistic planning of preventive maintenance and spares replenishment.
• A cost-effective alternative to sole-source OEM procurement, helping to reduce total cost of ownership.
• Consistency of specification across repeat orders for fleets running multiple etch and CVD platforms.

Frequently asked questions

What does this positioning stage actually do?

It is a single-axis linear positioning table that carries a payload of up to 10 lbs and moves it through a 2″ stroke, stopping accurately and repeatably at three defined stations. It is used to present, retract or index a mounted component, such as a sensor, optic, fixture or actuator, within an AMAT etch or CVD tool.

Is this an original OEM part?

No. This is supplied as a new, OEM-compatible replacement that is cross-referenced to Applied Materials OEM P/N 0190-23117. It is not an original OEM-branded part, but it is verified to match the original in form, fit and function so that it integrates into the tool exactly as the part it replaces.

What is the payload and travel rating?

The stage is rated for a 10 lbs (approximately 4.5 kg) payload and provides 2″ (approximately 50.8 mm) of linear travel. The payload figure should account for the mass of any fixture, bracketry and fasteners mounted to the carriage, not just the working component itself.

Why does it have three positions rather than continuous travel?

The three-position design suits applications where the payload only needs to be presented at a small number of fixed setpoints, for instance a home/retracted station, an intermediate station and an extended work station. Defining discrete, repeatable detents this way improves cycle-to-cycle consistency compared with parking a continuous-travel stage at arbitrary coordinates.

How do I know when it needs replacing?

Typical warning signs include notchy or hesitant travel, audible bearing noise, growing positional scatter at the index stations, intermittent sensor or interlock faults, and visible particulate around the guide. Any of these indicates wear in the bearing, actuator or feedback path and warrants inspection or replacement.

What is the lead time for this part?

The current lead time for this new assembly is 4 weeks. We recommend holding a unit as a spare where the tool is production-critical, so that a worn stage can be swapped during a planned maintenance window rather than driving an unplanned outage.

Summary

The 3-Position Table Positioning Stage (AMAT OEM P/N 0190-23117, ESCT P/N ES1011-018) is a compact single-axis linear positioning assembly that moves a 10 lbs payload through a 2″ stroke and indexes it precisely between three repeatable stations. Though modest in size, it is a yield-relevant motion component: worn bearings, tired actuators or faulty position sensing translate directly into drift, downtime and particle risk on AMAT etch and CVD platforms. Supplied new and verified to form, fit and function, ESCT’s replacement restores reliable, repeatable motion with a predictable 4-week lead time and at a lower total cost of ownership than sole-source OEM 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 Applied Materials part number 0190-23117. 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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