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The LAM Serial Communication Board, carrying OEM part number 810-017038-002 and supplied by ESCT Fab Support under part number ES2022-080, is a printed circuit board assembly responsible for serial data communication within LAM Research plasma process equipment. In a modern semiconductor fab, the etch and deposition platforms produced by LAM Research rely on a distributed network of embedded controllers, sensors and actuators that must exchange commands, status and diagnostic data continuously. The serial board sits at the heart of that conversation, translating between the higher-level system controller and the lower-level subsystem electronics that drive gas delivery, RF matching, chamber sequencing and end-point detection.
Physically, the board is a multi-layer PCB populated with line driver and receiver devices, a microcontroller or communications ASIC, opto-isolation components, connector headers and the passive networks that condition serial signalling. It typically supports asynchronous serial standards such as RS-232 and the differential RS-422 or RS-485 multidrop buses favoured in industrial process tools because of their noise immunity over the long cable runs found inside a mainframe-class etcher. The board is normally mounted within a card cage or electronics bay, where it interfaces with a backplane and ribbon or shielded cabling to the rest of the tool.
Because the serial board is a communications artery rather than a power or process component, its health is often invisible until something goes wrong. A degraded transceiver or a cracked solder joint does not stop the tool dramatically; instead it introduces intermittent communication faults, timeouts and parity errors that can be maddening to diagnose. Understanding the role this board plays makes the case for keeping a verified replacement, such as ES2022-080, on the shelf.
Within a LAM Research process tool, the serial board provides the electrical and protocol layer that allows the system controller to command and interrogate distributed subsystems. Its core responsibilities include:
The board’s line driver and receiver devices define how reliably data crosses the tool. RS-422 and RS-485 differential signalling rejects common-mode noise generated by the RF subsystem, while controlled slew rates and proper bus termination minimise reflections at the higher baud rates used for tool control.
Many serial interface designs isolate the communications side from the controller side to break ground loops between subsystems referenced to different potentials. Clean, well-decoupled supply rails to the transceivers and any on-board logic underpin stable signalling.
Although the serial board carries no process gas and applies no RF, its reliability has a direct bearing on tool availability and, ultimately, on wafer yield. When serial communication degrades, the consequences ripple across the system:
Line driver and receiver ICs can fail from cumulative ESD exposure, electrical overstress coupled from the bus, or simple age-related drift. A weakened transceiver may still pass at low data rates yet produce framing and parity errors as traffic increases, giving the classic intermittent fault that is hard to pin down.
Thermal cycling within the electronics bay, combined with vibration and repeated board insertion, stresses solder joints and connector contacts. Hairline cracks at connector pins or surface-mount leads create high-resistance or intermittent paths that disrupt signalling, often appearing only when the board is flexed or warm.
Termination resistors, biasing networks and decoupling capacitors can drift or fail over time, degrading bus impedance matching and supply stability. Dust, residue or moisture ingress on the board surface can raise leakage between traces, slowly eroding signal margins until errors appear.
Replacing a serial communication board is straightforward for a trained technician, but it must be carried out with full electrostatic discipline and in line with LAM Research service procedures. A typical replacement sequence is:
Communication boards are exactly the kind of low-cost, high-consequence component that benefits from proactive spares planning. Sourcing ES2022-080 through ESCT Fab Support offers several practical advantages:
It provides the serial interface layer that lets the system controller exchange commands, setpoints and status data with the distributed subsystems inside a LAM plasma process tool, converting logic signals into solid RS-232, RS-422 or RS-485 bus traffic.
No. ES2022-080 is supplied as a new OEM-compatible replacement for OEM part number 810-017038-002. It is verified to match the original in form, fit and function, but it is not an original LAM Research OEM part and is not sold as such.
Typical symptoms include intermittent communication timeouts, framing or parity errors logged by the tool software, and faults that worsen with temperature or board flexing. These often point to a degraded transceiver, a fatigued solder joint or a marginal connector contact.
The board must be handled under full ESD control (grounded wrist strap, ESD-safe surface and antistatic packaging) because its transceivers and logic devices are sensitive to electrostatic damage that may not be immediately apparent.
The current lead time is approximately 3 weeks. Holding a spare on site is recommended so that a communications fault can be cleared during a planned window rather than as an emergency.
In most cases you should confirm that any jumper, switch or bus-address settings on the replacement match those of the board removed. Once the configuration mirrors the original and all cabling is reconnected correctly, the board should communicate without further changes.
The LAM Serial Communication Board (OEM P/N 810-017038-002), offered by ESCT Fab Support as ES2022-080, is the serial interface PCB that keeps the controllers and subsystems of LAM Research plasma process tools talking to one another. Its transceivers, isolation, termination networks and connectors must all perform reliably to maintain error-free communication, repeatable processing and high tool availability. Failures tend to be intermittent and disruptive, which makes a verified, ESD-handled replacement a useful item to keep on the shelf. With a defined 3-week lead time and a clear cross to the OEM number, ES2022-080 gives fabs a cost-effective, dependable route to maintaining the communications backbone of their LAM equipment.
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 810-017038-002. 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.
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