810-800082-043 is an original custom VME bus architecture mainboard expansion backplane manufactured by Lam Research. Developed exclusively for the LAM series dry etch equipment, it serves as the core signal transit hardware inside the equipment control cabinet, designated by the OEM as the I/O and bus expansion carrier for the single-board main controller.
Equipped with multiple DB data connectors, dual Ethernet ports and standard VME64 bus gold fingers, the board transmits full-process process signals including chamber motion control, RF matching, vacuum pressure, and gas flow. It uniformly performs level shifting, impedance matching and signal line splitting, addressing two key pain points of the etcher mainboard: insufficient native onboard interfaces and messy centralized wiring for multi-channel process signals.
Fabricated with a 16-layer industrial PCB dedicated to semiconductor equipment, the backplane is engineered to withstand the constant-temperature cleanroom operating conditions of wafer fabs. It is exclusively compatible with original LAM etch platforms such as the 2300 and ExAL series, with no universal industrial PC compatibility available. This component is an indispensable spare part that ensures high-precision closed-loop control of plasma etch process parameters.
Model Breakdown
Model breakdown: 810-800082-043
- 810: Original Lam Research PCB board category code, covering equipment control backplanes, expansion boards and signal transition boards. This series is separated from spare parts such as RF power supplies, motor drives and sensors.
- 800082: Base board part number, corresponding to standard VME multi-channel I/O expansion backplane. Derivative sub-models under the same board layout include 810-800082-018, 810-800082-022 and so on. They share identical hardware wiring and substrate material, with only minor differences in the number of interface channels and port definitions.
- 043: Revision number, the 43rd optimized iteration of this base board design. It adds dual-channel Gigabit Ethernet for 200mm wafer etchers and improves anti-interference circuits for RF signals. This revision resolves defects of earlier versions including high-frequency signal drift and poor contact caused by port oxidation. It is the finalized mass-production version of this series, superseding older revisions 018 and 022.
Product Advantages
Native OEM Bus Compatibility with Zero Signal Loss
Designed in full compliance with the VME64 industrial bus standard, the bus gold fingers feature full-range impedance matching. The board directly plugs into the equipment’s main VME single-board controller without external signal conversion modules. Transmission latency for multi-channel process signals is controlled at the microsecond level, preventing wafer yield loss caused by delayed feedback of etch chamber ion energy and gas flow.
High-Density Integrated Interfaces Simplify Cabinet Wiring
A single board integrates 22 DB data terminals and dual industrial RJ45 Ethernet ports. It simultaneously connects servo drives for 6 process chambers, RF matching units, vacuum gauges and mass flow controllers. It replaces multiple small transition boards, drastically cutting cable counts inside the control cabinet and easing circuit troubleshooting during maintenance.
Durable Construction for Harsh Semiconductor Operating Environments
The PCB is built with high-Tg heat-resistant substrate, and all interface terminals feature thickened gold plating to resist corrosion from trace fluorinated gases present in cleanrooms. It operates continuously between 0°C and 70°C and withstands persistent low-frequency vibration generated by chamber startup and shutdown cycles. Its OEM-rated service life exceeds 8 years, far outperforming generic commercial VME backplanes available on the market.
Centralized Signal Routing Accelerates Fault Localization & Reduces Downtime
All signals from external peripherals transit through this backplane. Equipment alarms can be segmented and diagnosed via on-board port indicator lights to isolate faults between the main controller, wiring harnesses and chamber peripherals. There is no need to disassemble cabinet wiring section by section, slashing equipment troubleshooting time by 60%.
Backward Compatibility Enables Direct Drop-In Replacement Without Rewiring
Revision 043 is fully interchangeable with earlier revisions 018 and 022 of the same base layout. Pin assignments, mounting hole positions and bus slots are identical. Wafer fabs can freely allocate existing inventory without modifying cabinet wiring or underlying equipment control firmware.
Product Hardware Specifications
Bus Architecture
Standard VME64 dual-bus with P1/P2 connectors; compatible with 32-bit / 64-bit VME main control boards; supports signal scheduling under the VxWorks real-time operating system for equipment.
Physical Dimensions
Overall dimension: 230mm × 120mm, net weight: 1.23kg. Fixed mounting for standard cabinet slots, compatible with original LAM 12-slot VME industrial chassis.
Electrical Parameters
Standard 24VDC cabinet power supply, rated operating current 2A, isolation voltage of signal channels 1500V; high-frequency process signals support transmission up to 60kHz.
Interface Configuration
Multi-channel DB37 / DB25 analog terminals, dual-channel Gigabit industrial Ethernet ports, and multi-channel digital I/O signal ports, covering three types of signals: analog acquisition, motion control and equipment communication.
Circuit Protection
Each signal channel is integrated with TVS transient suppression diodes and filter capacitor arrays to resist high-voltage pulses generated during RF power supply startup and shutdown, preventing breakdown of chips on the main single-board controller.
Environmental Resistance
Operating temperature range: -20℃ ~ +85℃; non-condensing humidity 20%–80%. Compliant with CE and RoHS certifications for industrial electronic components, suitable for semiconductor cleanroom environments.
Process & Materials
16-layer laminated PCB with differential equal-length routing for critical signal lines; gold fingers with 3μm gold plating thickness, resisting oxidation and discoloration after long-term plugging and unplugging.
Application Industries
Core Wafer Fabrication Segment
200mm / 300mm dry plasma etching production lines, covering wafer etching processes for logic chips, memory chips (3D NAND, DRAM) and power semiconductors. Compatible with main control cabinets of LAM 2300 series and ExAL series etchers.
Advanced Packaging Fabs
TSV through-silicon via etching and flip-chip dielectric layer etching equipment for wafers. It undertakes real-time feedback control of packaging chamber motion and plasma parameters.
Third-Party Semiconductor Equipment Maintenance Vendors
Applied to full refurbishment of Lam Research etchers, faulty board replacement and repair of pre-owned equipment. It serves as an essential standard spare part for maintenance services.
Semiconductor Material R&D Laboratories
Etching experimental platforms in universities and material research institutes, used for centralized multi-channel signal acquisition and control expansion of small process chambers.
Matching Hardware
Core Matching Main Controller
Original Lam Research VME64 single-board computer (MVME series OEM mainboard, factory-standard industrial control motherboard for equipment).
Chassis Carrier
Original Lam 12-slot standard VME industrial cabinet equipped with independent air duct cooling modules.
Peripheral Connection Components
Shielded DB37/DB25 signal cables, industrial Gigabit twisted-pair Ethernet cables, chamber RF matching units, capacitive vacuum gauges, MFC mass flow controllers, servo motion drive modules.
Maintenance Consumables
Anti-static wristbands, electronic-grade compressed air, IPA cleanroom wipes, gold-plated terminal repair paste, cabinet shock-absorbing pads.
Supporting Software
OEM VxWorks real-time control firmware and chamber process parameter monitoring background program. No separate firmware flashing is required after board replacement; the board is plug-and-play and automatically recognized by the system.
FAQ
Q1: Can 810-800082-043 directly replace the older 810-800082-018? Do I need to rewire the cabinet?
A1: Direct replacement is supported. Revision 043 shares fully compatible pinouts, mounting holes and port definitions with 018. No cabinet wiring modification is needed. The main control system automatically recognizes all channels after installation without editing the equipment control program. It is the official designated upgrade replacement model from the manufacturer.
Q2: This board only fits Lam etchers; can it work on semiconductor equipment of other brands?
A2: It is not cross-brand compatible. The board’s port communication protocol, signal voltage level and VME bus timing are custom-designed exclusively for Lam equipment. When used on etch/deposition tools from other brands such as Applied Materials or TEL Tokyo Electron, issues including communication dropouts and distorted parameter readings will occur. It is only compatible with Lam 2300 and ExAL series dry etching platforms.
Q3: How many 810-800082-043 expansion backplanes are required for a single 6-chamber etching cabinet?
A3: A single unit of this backplane is factory-standard for 6-chamber 2300 equipment to carry all chamber signals. If third-party peripherals such as optical inspection or exhaust gas monitoring units are retrofitted to the tool, an extra backplane is recommended for signal splitting to prevent communication latency caused by fully loaded channels on one board.
Q4: The equipment frequently reports lost I/O channel communication; does this mean the expansion board is defective?
A4: Not necessarily. First power off the tool and clean oxidation buildup on the board’s VME gold fingers and DB terminals, then check whether cable locks and connectors are loose. If alarms persist after cleaning, swap in a new board for testing. Most connection-related faults can be resolved by cleaning without spare part replacement.
Q5: Fluorinated gas vaporizes in the cleanroom; how to extend the service life of 810-800082-043?
A5: Two routine maintenance optimizations:
- Regularly replace activated carbon filter cotton on the cabinet sealed air duct to block corrosive gas from entering the card slots;
- Wipe all metal terminals with cleanroom wipes every quarter and apply a thin layer of gold-plating protective paste to avoid open circuits caused by sulfide discoloration of terminals.
Q6: Partial overheating occurs on the board after prolonged operation; is this normal?
A6: Surface temperature ≤45°C under no-load conditions is normal. If the temperature exceeds 60°C, check two factors: dust buildup or stall of cabinet cooling fans, and overloaded external peripherals on individual channels. Performance will return to normal after cleaning the air duct or splitting peripheral signals. Long-term high temperatures will burn out on-board filter chips.
Q7: Minor drift of etch chamber process parameters appears after replacing the expansion board, how to fix this?
A7: The backplane itself will not alter process baselines. Parameter drift is mostly caused by changed contact resistance at wiring terminals. Run the equipment chamber zero calibration procedure and re-calibrate RF, gas flow and vacuum reference values. The original etching yield standard will be restored after calibration.
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