LAM Research 810-234640-312 Power Supply Module – Etch & CVD Series

LAM Research 810-234640-312 DC Power Supply Module — Regulated Power Architecture for Plasma Process Control

The LAM Research 810-234640-312 is a dedicated DC power supply module engineered for integration within LAM Research plasma etch and chemical vapor deposition (CVD) platforms. Its primary function within the process tool architecture is to deliver stable, low-ripple DC voltage rails to downstream subsystems — including RF bias circuits, electrostatic chuck (ESC) controllers, heater driver boards, and chamber diagnostic electronics. In high-throughput semiconductor fabs operating 200 mm and 300 mm wafer lines, power supply stability directly correlates with process repeatability: voltage transients exceeding ±1% on bias supply rails have been documented to shift etch selectivity ratios and degrade CD uniformity across wafer lots. The 810-234640-312 addresses this constraint through its regulated output topology and internal filtering architecture.

This module is field-identified in LAM Research Kiyo, Versys Metal, and 2300 series etch platforms, as well as PECVD deposition tools where multi-rail power distribution is managed through a centralized PSU bay. Its mechanical form factor conforms to the LAM Research modular chassis standard, enabling direct drop-in replacement without chassis modification or process recipe re-qualification.

Real-time Stock & RFQ: [email protected] | WhatsApp: +86 18359268345

Technical Parameters

Hardware Logical Analysis

The 810-234640-312 operates within a power distribution hierarchy where the module receives AC mains input from the tool’s primary power distribution unit (PDU) and converts it to one or more regulated DC rails consumed by process-critical subsystems. The internal topology employs a switched-mode power conversion stage followed by a linear post-regulation stage on sensitive output rails — a dual-stage approach that balances conversion efficiency with the low output impedance required by RF-coupled loads.

From an EMC standpoint, the module’s input stage incorporates common-mode and differential-mode filtering to suppress conducted emissions generated by the switching converter from propagating back onto the facility power bus. This is particularly relevant in fab environments where multiple high-power RF generators share a common electrical infrastructure: without adequate input filtering, switching noise from PSU modules can couple into RF measurement circuits and introduce systematic error in endpoint detection systems.

The output rails serving the ESC high-voltage bias circuit are routed through dedicated LC filter networks with damping resistors sized to prevent resonance at frequencies coinciding with the RF generator’s fundamental and harmonic frequencies (typically 2 MHz, 13.56 MHz, and 27 MHz bands). This design prevents RF energy from back-feeding into the DC supply rails and corrupting the regulated output voltage.

Thermal management within the module relies on a combination of conduction cooling through the chassis mounting interface and forced-air convection from the tool’s internal cooling fans. The power components — including the main switching transistors and output rectifier diodes — are mounted to an internal heatsink plate with controlled thermal interface material (TIM) thickness to maintain junction temperatures within the component manufacturer’s derating curve at maximum continuous load. This thermal discipline is what enables the module to sustain rated output under the continuous-duty cycle typical of 24/7 fab operations without accelerated component aging.

The module also incorporates over-voltage protection (OVP), over-current protection (OCP), and over-temperature protection (OTP) circuits that assert a fault signal to the tool’s system controller upon threshold breach. This fault signaling architecture allows the tool’s process control software to execute a controlled shutdown sequence rather than an abrupt power loss, protecting in-process wafers and preventing chamber contamination events.

System Integration Benefits

• Direct OEM form-factor compatibility: The 810-234640-312 conforms to LAM Research’s modular PSU bay dimensions and connector pinout, eliminating the need for mechanical adaptation brackets or wiring harness modifications during replacement.
• Process recipe stability: Regulated output rails with low transient response time ensure that voltage perturbations during load steps — such as ESC clamping events or heater duty-cycle transitions — do not propagate to adjacent supply rails and alter plasma conditions mid-process.
• Deterministic fault response: Integrated OVP/OCP/OTP with fault signal output enables the tool’s system controller to log fault codes with timestamp precision, supporting root-cause analysis and mean-time-between-failure (MTBF) tracking under SEMI E10 frameworks.
• Reduced unplanned downtime: Stocking a verified spare 810-234640-312 eliminates the 6–14 week OEM lead time typically associated with new PSU procurement, converting potential unplanned outages into planned maintenance events with sub-24-hour recovery.
• EMC-compliant installation: Input filtering architecture meets conducted emission limits consistent with SEMI S2 environmental guidelines, ensuring the module does not degrade the electromagnetic environment of adjacent metrology or inspection tools sharing the fab bay.
• Thermal derating headroom: Component selection and heatsink design provide thermal margin above the rated operating temperature, supporting deployment in fab bays where ambient temperatures may exceed standard 20°C conditions during peak production periods.
• Traceability and documentation: Each unit is serialized with revision-level identification, enabling procurement teams to match the correct hardware revision to the tool’s BOM and avoid compatibility issues introduced by mid-life engineering change orders (ECOs).
• Dual-condition sourcing flexibility: Availability in both refurbished-tested and new-surplus conditions allows fab procurement teams to optimize capital expenditure based on tool criticality, remaining tool life, and budget cycle constraints without compromising functional performance.

Quality Assurance & Global Logistics

Every 810-234640-312 unit offered through siemensplc.com undergoes a structured incoming inspection and functional verification protocol before being listed as available stock. The process includes visual inspection for mechanical damage, connector integrity verification, functional power-on testing with output rail measurement against reference specifications, and ESD-safe repackaging with anti-static bags and foam-lined cartons.

Units are sourced through established secondary-market channels with documented chain of custody. Serial numbers and hardware revision levels are recorded at intake and included in the shipment documentation. A 12-month warranty covers functional defects from the date of shipment, with a defined return merchandise authorization (RMA) process for any units that fail to perform to specification in service.

Logistics operations are based in Xiamen, China — a major international freight hub with direct air cargo connections to semiconductor manufacturing centers across East Asia, Southeast Asia, Europe, and North America. In-stock units typically ship within 2–3 business days of order confirmation. Express air freight options are available for urgent fab recovery scenarios, with door-to-door transit times of 3–7 business days to most global destinations. All shipments include commercial invoice, packing list, and certificate of conformance documentation to support customs clearance and incoming inspection at the destination facility.

Contact Information

📧 Email: [email protected]
📱 WhatsApp: +86 18359268345
🌐 Web: siemensplc.com
📍 Location: Xiamen, China
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