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Lam Research 810-073479-215 Integrated Module
Lam Research 810-073479-215
Product Overview
The Lam Research 810-073479-215 is an ultra-high-purity digital Mass Flow Controller (MFC) integrated module engineered for the front-end process gas delivery systems of semiconductor plasma etching and deposition equipment. Serving as a core metering and actuation component in Lam Research Gas Panels, this module delivers ultra-precise, high-response transport of trace specialty process gases (typically measured in Standard Cubic Centimeters per Minute, SCCM) to the process reaction chambers.
Distinct from standard industrial-grade MFCs, the 810-073479-215 features an ultra-clean electropolished internal flow path. Its sensing element adopts a frictionless suspension design (thermal or pressure-based), integrated with precision laminar flow elements and adiabatic coils. This configuration enables accurate gas mass flow measurement immune to inlet temperature and pressure fluctuations. In high-aspect-ratio 3D NAND etching and atomic-level etching for advanced logic chips, the flow stability of this module directly determines wafer surface chemical reaction rates, etching selectivity, and Critical Dimension (CD) uniformity.
As part of Lam Research’s highly customized spare part system, the product is designed in strict compliance with SEMI standards, meeting the extreme semiconductor manufacturing requirements for ultra-high cleanliness, superior corrosion resistance, and high pressure tolerance. Constructed with special halogen-resistant alloy valve bodies and an all-metal sealing structure, the 810-073479-215 incorporates a high-speed Digital Signal Processor (DSP) that responds to process recipe flow adjustments within milliseconds. It actively eliminates flow disturbances induced by upstream pressure fluctuations and downstream gas load variations.
Product Specifications
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Parameter
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Specification
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Product Model
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Lam Research 810-073479-215
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Manufacturer
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Lam Research Corporation
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Product Type
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Ultra-High-Purity Digital Mass Flow Controller (MFC) Module
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Flow Range
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10 SCCM ~ 50 SLM (configuration-dependent; complementary to the 107813 series in measuring range)
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Control Accuracy
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±0.5% of setpoint (10% ~ 100% full scale)
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Repeatability
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±0.2% full scale
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Response Time (Setpoint)
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< 800 ms (within ±2% of final value)
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Applicable Gases
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Corrosive gases (Cl₂, BCl₃, HBr, CF₄, NF₃, etc.) and inert gases
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Valve Body Material
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Corrosion-resistant stainless steel (316L VAR or Hastelloy C-22)
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Sealing Material
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All-metal (metal gasket) or high-durability FFKM
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Maximum Inlet Pressure
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150 psig (approx. 10.3 bar)
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Pressure Drop Range
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10 ~ 60 psid (setpoint-dependent)
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Internal Leak Rate
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< 1.0 × 10⁻⁹ atm·cc/sec (He)
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External Leak Rate
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< 1.0 × 10⁻¹⁰ atm·cc/sec (He)
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Operating Temperature
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15°C ~ 50°C (valve body heatable up to 120°C for condensation prevention)
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Communication Protocol
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DeviceNet™ or RS-485 (digital communication, remote setting & diagnosis supported)
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Cleanliness Grade
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Class 1 assembly environment, double-layer vacuum sealed packaging
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Power Supply
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24 VDC ± 10%
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Structure and Composition
The Lam Research 810-073479-215 integrates high-precision microfluidic manufacturing and high-reliability intelligent control technologies. Physically, the module consists of three core functional zones: the flow & sensing zone, the control valve actuation zone, and the signal processing & communication zone.
The flow & sensing zone serves as the pneumatic core of the module, fabricated from ultra-precision machined special alloy bulk material. It incorporates a bypass capillary for main gas shunting and a spiral/straight sensing tube. Heating coils and temperature sensing elements are wrapped around the sensing tube, forming a classic thermal mass flow sensing core. Gas flow carries away heat during passage, and the amplified upstream-downstream temperature difference signal via a Wheatstone bridge circuit enables precise calculation of real-time gas mass flow rate.
Located at the downstream outlet of the gas flow path, the control valve actuation zone functions as the physical actuator. It integrates a high-dynamic-response electromagnetic proportional regulating valve with a customized spool design. This structure resists chemical wear in corrosive gas environments and maintains an ultra-low deadband.
The signal processing & communication zone acts as the intelligent core of the 810-073479-215, equipped with a high-density multilayer Printed Circuit Board (PCB). The PCB integrates a high-speed Microcontroller Unit (MCU), high-precision ADC/DAC, and isolated communication interface chips. The MCU collects real-time flow sensing signals and calculates output values via embedded PID control algorithms to precisely drive the proportional solenoid valve and stabilize target flow. Encapsulated in a shielded cover on the module top, the PCB assembly effectively resists strong Radio Frequency (RF) electromagnetic interference near reaction chambers.
Key Features and Advantages
Ultra-High Precision and Long-Term Stability
Powered by advanced thermal sensing technology and full-digital closed-loop control algorithms, the 810-073479-215 delivers industry-leading setpoint control accuracy across the full flow range. Built-in zero-drift compensation suppresses performance deviations caused by ambient temperature variations and gas composition differences. It maintains negligible flow output drift during weeks or months of continuous operation, ensuring high repeatability of wafer process results.
Ultra-Fast Response and Active Flow Compensation
Advanced pulsed plasma processes require synchronous flow pulsing matching RF power switching. With a step response time of less than 800 ms, the module tracks recipe flow changes rapidly. More critically, the integrated high-speed DSP monitors real-time inlet pressure fluctuations and initiates proactive valve pre-compensation. This eliminates downstream flow interference caused by upstream gas pressure variations and significantly improves transient process stability.
Corrosion Resistance and Premium Cleanliness Assurance
Optimized for highly corrosive and toxic process gases, the module adopts a high-nickel alloy valve body paired with all-metal or specialized FFKM sealing solutions. The electropolished (EP) internal flow path achieves an ultra-low surface roughness, preventing gas molecule adsorption and particle retention. This enables rapid gas purging and minimal cross-contamination risks, fully complying with ultra-high cleanliness standards for semiconductor core gas system components.
Application Fields
The Lam Research 810-073479-215 is widely integrated into advanced 200mm and 300mm wafer fabrication equipment, serving as a core flow control component in the Gas Box systems of Lam Research 2300 series (Kiyo dielectric etchers, Flex conductor etchers) and Versys metal etchers.
It supports critical etching steps in logic chip manufacturing, including CF₄/CHF₃ mixed gas control for Shallow Trench Isolation (STI) etching, precise Cl₂/HBr ratio regulation for polysilicon gate etching, and complex gas switching for low-k dielectric etching in Back-End-of-Line (BEOL) Damascus processes. For memory chip production, it enables stepped precursor flow control for ultra-high-aspect-ratio channel hole etching in 3D NAND flash devices.
In broader semi-conductor and emerging technology sectors, the module applies to deep silicon etching (Bosch process with alternating C₄F₈/SF₆ control) for MEMS devices and high-temperature etching for power devices (IGBT, SiC). It resolves critical process defects in wafer fabrication, including etch rate drift, aggravated micro-loading effects, and particle contamination induced by flow overshoot. As a key diagnostic component for process tuning and low-yield troubleshooting, this spare part is indispensable for etching and deposition process modules in global wafer fabs.
Installation and Maintenance
Pre-Installation Preparation
Prior to installation, fully cut off the upstream gas supply of the Gas Box and purge residual process gases with nitrogen to achieve safe concentration levels. Operators must wear cleanroom suits and nitrile gloves and perform all operations in a Class 100 or higher clean environment. Purge connection ports with high-purity nitrogen and inspect the integrity of protective films on module flow ports.
Install VCR/Swagelok connectors strictly per Lam factory-specified cross-sequence torque values; thread seal tape and sealant are prohibited. For electrical connection, verify correct 24 VDC power polarity and match terminal resistor settings with system network topology (e.g., end-node configuration for DeviceNet networks).
Maintenance Guidelines
Incorporate the 810-073479-215 into routine equipment PM cycles. Regularly monitor zero drift and full-scale calibration status via equipment self-diagnosis interfaces. Persistently extreme valve opening percentages (too high or too low) for setpoint maintenance indicate upstream filter clogging or spool aging, requiring timely replacement.
Track real-time flow-setpoint deviation via HMI during daily inspections; perform Auto-Zero calibration if sustained deviation occurs. Replace the upstream purification filter (830-101012-001) simultaneously during MFC replacement, and release pipeline stress to avoid mechanical deformation and degraded airtightness.
Product Warranty and Support
All Lam Research 810-073479-215 products are sourced from certified compliant supply channels, guaranteeing original factory quality or fully tested high-reliability compatible parts for Lam Research tools. Every unit undergoes comprehensive factory quality inspection, including helium leak testing, full-range flow accuracy calibration, and digital communication verification.
We provide a 12-month quality warranty from the date of installation. Our professional technical team, with extensive experience in semiconductor gas delivery systems, offers remote protocol configuration, zero-calibration guidance, and fault troubleshooting services. Supported by sufficient global inventory and efficient logistics networks, we deliver timely emergency spare part support to stabilize production line operation and maximize wafer yield.
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