OEM P/N:
ESCT P/N:
PART TYPE:
OEM:
The LAM Autotune Board, OEM part number 810-015932-001, is a printed circuit assembly that governs the automatic tuning of the radio-frequency (RF) impedance match network on LAM Research plasma process systems. In any capacitively coupled plasma etch or deposition chamber, RF power must be delivered from a fixed-impedance generator into a plasma load whose impedance shifts continuously with pressure, gas chemistry, electrode condition and process step. The autotune board is the intelligence behind the match network: it senses the mismatch, computes the corrective capacitor positions and drives the variable vacuum capacitors until reflected power is minimised. Without it, the match network would be a passive collection of components with no closed-loop control.
Physically the board sits inside the matchbox or RF delivery enclosure that mounts close to the chamber lid, between the RF generator output and the powered electrode. It interfaces with phase and magnitude detectors (or forward/reflected power sensors) on the input side, and with the stepper or servo motors that position the tune and load vacuum variable capacitors on the output side. Its firmware closes the loop hundreds of times per second, holding the system at or near a 50-ohm presented impedance so the generator sees a clean load.
Because the autotune board directly determines how much power actually couples into the wafer, it is one of the most yield-critical electronic assemblies in the RF subsystem. A board that drifts, hunts or stalls translates immediately into unstable plasma, inconsistent etch rates and reflected-power faults that halt production. The ES2022-101 from ESCT Fab Support is a form-fit-function replacement intended to restore reliable autotuning to tools where the original board has aged out, failed or become difficult to source.
The autotune board is the control element of the RF match network. It continuously monitors the quality of the impedance match and commands the motorised variable capacitors to track the moving plasma load, giving maximum power transfer and minimum reflected power throughout every recipe step.
As a control PCB operating in close proximity to high-power RF, the autotune board must combine sensitive analogue measurement with solid motor drive while rejecting the electrical noise environment of an energised plasma chamber.
The input side relies on low-noise analogue front-end circuitry to condition the phase and magnitude signals from the RF detector. Operational amplifiers, precision references and analogue-to-digital conversion feed a microcontroller or logic device that executes the tuning loop. Signal integrity here is everything: a few millivolts of offset or drift on the error inputs shifts the null point and biases the entire tune.
The output side carries higher currents to drive the capacitor motors. Stepper driver stages, power transistors or relays, and the associated regulation must deliver clean, repeatable motion and survive thermal cycling. Connectors and solder joints in this section see mechanical and thermal stress every time the tool tunes.
Because autotuning sets the actual delivered power, the condition of this board propagates directly into process results and equipment uptime.
Ageing voltage references, op-amps and passive components shift the sensed null over time. The tool may still tune, but it settles at a biased point, producing gradual rate drift and uniformity changes that are easily mistaken for chamber or consumable issues until the board is implicated.
Degraded motor driver stages, failing logic or noisy feedback cause the capacitors to oscillate around the match point or stop short of it. Symptoms include audible repeated motor stepping, long tune times, intermittent home-reference errors and recurrent high-reflected-power aborts.
Years of thermal cycling and RF exposure fatigue solder joints, dry out electrolytic capacitors and corrode or loosen connectors. The result is intermittent operation that comes and goes with temperature or vibration, often the hardest fault to pin down and the most disruptive to production.
Replacement should be carried out by a qualified equipment technician following LAM lockout/tagout and RF-safety procedures. The matchbox carries high RF voltages and the chamber must be confirmed de-energised before any work begins.
Autotune control boards are exactly the kind of low-volume, high-impact assembly that can become difficult to source as platforms mature, yet a single failure can idle a process tool. Holding a qualified replacement such as the ES2022-101 protects throughput and shortens recovery time.
It is the closed-loop controller for the RF impedance match network. It senses the mismatch between the generator and the plasma load, then drives the tune and load variable capacitors to minimise reflected power and maximise delivered power throughout each process step.
No. The ES2022-101 is supplied by ESCT Fab Support as an OEM-compatible replacement for the LAM board 810-015932-001. It is verified to match the original in form, fit and function, but it is not an original OEM part and is not sold as one.
Typical signs are long or hunting tune times, recurrent high-reflected-power faults, gradual drift in etch or deposition rate and uniformity, intermittent operation that tracks temperature, and home-reference or motor-drive errors reported by the tool.
The board is intended to integrate with the same matchbox sensors, variable vacuum capacitors and motor actuators served by the original. Always confirm your configuration and replicate any switch or jumper settings from the board you remove before commissioning.
After fitting, home the capacitors, verify position referencing, then run a known recipe and confirm the tune settles quickly with low reflected power. Validate delivered power, rate and uniformity against your baseline before releasing the tool to production.
The standard lead time is 3 weeks. Holding the board as a planned spare is the most reliable way to avoid extended RF-subsystem downtime should an autotune fault occur.
The LAM Autotune Board (OEM P/N 810-015932-001) is the control intelligence of the RF match network on LAM plasma process systems, continuously tuning the variable capacitors to hold a clean match and deliver stable power to the plasma. Its analogue sensing, control logic and motor-drive sections all influence process repeatability, and its failure modes (drift, hunting, stalling and intermittent connection faults) map directly onto yield excursions and downtime. The ESCT Fab Support ES2022-101 is a verified form-fit-function replacement, available on a 3-week lead time, that restores reliable autotuning without the cost and scarcity of original OEM stock.
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 Lam Research part number 810-015932-001. It is not an original OEM part and is not sold as one. It is not manufactured by, endorsed by, or affiliated with Lam Research, 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.
