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Lam Research 853-111462-019, 810-072687-414 Transmission Module
Lam Research 853-111462-019
Product Overview
853-111462-019 is a high-purity, high-precision core component for process fluid transfer and distribution, designed by Lam Research for advanced semiconductor manufacturing equipment. It serves as a key part of the Equipment Front End Module (EFEM) or the peripheral fluid management subsystem of process chambers.
Engineered for ultra-clean manufacturing environments, this module precisely delivers specific process chemicals, deionized water, cleaning solvents, and precursor gases to reaction chambers or wafer surface processing units with accurate flow rate and pressure control. It lays a solid physical foundation for ensuring the consistency and repeatability of critical semiconductor processes, including wet wafer cleaning, post-etch treatment, and post-Chemical Mechanical Planarization (CMP) cleaning.
Unlike general-purpose fluid components, 853-111462-019 is a high-performance customized component deeply integrated with specific Lam Research tool platforms. Its material purity, flow channel design, and sealing performance directly determine the metal contamination level and particulate matter concentration on wafer surfaces, exerting a decisive impact on wafer processing quality.
Product Specifications
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Parameter Item
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Parameter Value
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Product Model
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853-111462-019
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Manufacturer
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Lam Research
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Product Type
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High-Purity Process Fluid Transfer & Distribution Module
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Fluid Contact Material
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Ultra-High-Purity PFA (Perfluoroalkoxy Alkane) / PTFE (Polytetrafluoroethylene)
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Applicable Fluids
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Strong acids (HF, H2SO4, HNO3), alkaline solutions, organic solvents, SC1/SC2 standard cleaning solutions, deionized water
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Operating Temperature Range
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20°C to 150°C (subject to fluid type and material grade)
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Maximum Operating Pressure
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Typical 0.8 MPa (approximately 116 psi)
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Flow Control Accuracy
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Better than ±1% of set value (full-scale range)
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Interface Type
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Exclusive high-purity flare or Pillar sealing fittings
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Control Interface
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Lam Research exclusive digital communication bus
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Cleanliness Grade
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Compliant with SEMI S2 / S8 standards, suitable for Class 1 cleanroom environments
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Structure and Composition
The 853-111462-019 module adopts a highly integrated and modular design. Its outer housing is fabricated from surface-treated engineering plastic or aluminum alloy, while the interior integrates a complete set of fluid pipelines, sensing units, and actuators. Equipped with multiple high-purity fluid inlet and outlet ports featuring Lam Research’s standard dead-space-free and low-residual-volume design, the module enables rapid fluid switching and minimizes cross-contamination risks. Status indicator lights on the module panel display the real-time status of power supply, communication, and flow channel switching.
The core internal components consist of multiple functional units. The ultra-smooth integrated flow plate made of high-purity PFA effectively prevents particle adhesion and biofilm growth. High-precision digital mass flow meters and pressure sensors with non-intrusive or minimally intrusive installation eliminate secondary fluid contamination. Ultra-clean diaphragm valves and piezoelectric driving elements deliver ultra-long service life and ultra-fast response speed.
A miniaturized embedded controller is built into the module to execute underlying flow control algorithms and valve sequence logic, and conduct high-speed data interaction with Lam Research’s master control system. The overall structure forms a complete, efficient closed-loop fluid management system to ensure stable and accurate fluid delivery.
Key Features and Advantages
1. Ultra-High Purity and Superior Corrosion Resistance
All fluid-contact surfaces of the module adopt ultra-high-purity PFA and PTFE materials, molded via specialized injection and welding processes to minimize the use of gaskets and joints. This design fundamentally reduces the precipitation of particulate matter and metal ions. With excellent chemical inertness, the module stably transports nearly all semiconductor process chemicals including hydrofluoric acid and concentrated sulfuric acid. It extends equipment service life, lowers wafer surface defect density, and effectively improves production yield.
2. Ultra-High Flow Control Accuracy and Repeatability
Equipped with high-precision and high-response digital mass flow control technology, the module’s closed-loop control algorithm dynamically compensates for flow deviations caused by fluctuations in fluid temperature, viscosity, and inlet pressure. It ensures precise and consistent fluid dosing in multi-step complex process recipes. The outstanding process repeatability guarantees uniform wafer processing effects, eliminating batch-to-batch variations and yield loss in critical processes such as ultra-thin oxide layer wet etching and cleaning.
3. Intelligent Diagnosis and Predictive Maintenance
Beyond basic fluid distribution functions, the module acts as an intelligent sensing node that continuously monitors and uploads key operational health data, including valve switching cycles, sensor readings, and cumulative operating hours. The data is integrated into Lam Research’s equipment health management system, enabling engineers to predict the replacement cycle of wearing parts in advance. It upgrades maintenance mode from passive troubleshooting to active preventive maintenance, reduces unplanned downtime, and lowers the overall total cost of ownership (TCO) of equipment.
Application Fields
853-111462-019 is mainly applied to wet processing procedures in the front-end manufacturing of advanced semiconductor devices, serving as a core fluid management component for Lam Research’s mainstream cleaning, wet etching, and photoresist stripping equipment. It is widely used in the mass production of 300mm wafers, covering the manufacturing of logic chips, memory chips (3D NAND, DRAM), and power devices.
In specific application scenarios, the module supports RCA standard cleaning before wafer furnace tube processing, providing ultra-clean wafer surfaces for high-quality gate oxide layer growth. For photoresist stripping and residue removal processes, it precisely distributes high-temperature corrosive cleaning solutions such as SPM (sulfuric acid-hydrogen peroxide mixture) to eliminate polymer residues generated by ion implantation and dry etching. In post-CMP cleaning processes, it delivers customized chelating agents and surfactant solutions to remove abrasive particles and protect copper interconnect layers from corrosion.
As a key execution unit for full-process contamination control and wafer surface condition regulation, the module enables Lam Research’s wet process solutions to meet the stringent defect control requirements of advanced semiconductor process nodes.
Related Products
- 853-111462-018: Similar model in the same series with differentiated interface configurations and flow ranges, meeting minor customized process and tool matching requirements.
- 853-111462-020: Enhanced version of the same series, integrated with higher-precision temperature control and multi-channel fluid proportional mixing functions for complex process scenarios.
- 810-072687-414: Another core subsystem component of Lam Research. The two components work collaboratively on the same tool platform to undertake different functional modules.
- 853-005678-001: Matching high-purity PFA pipeline and fitting kit for on-site fluid pipeline connection and modification of the main module.
- 853-900001-001: Dedicated calibration and configuration software tool package for on-site commissioning and parameter setting by authorized engineers.
- 853-003456-002: Ultra-clean diaphragm valve maintenance kit, including wearable diaphragms and sealing rings, for regular preventive maintenance of the module.
Installation and Maintenance
Pre-Installation Preparation
All installation operations must strictly comply with Lam Research safety specifications and cleanroom operating guidelines. Operators shall wear complete cleanroom garments, face shields, and acid-base resistant gloves, and conduct operations in a Class 1 cleanroom environment. Before installation, ensure the equipment is fully shut down, and all residual pressure and chemical fluids in the pipelines are completely discharged.
Verify that the interface specifications of the new module fully match the system pipelines, and prepare dedicated high-purity PFA torque wrenches and seal inspection tools. Clean all interfaces with IPA (isopropyl alcohol) and lint-free cloths throughout the operation to avoid particulate contamination.
Maintenance Guidelines
The maintenance of 853-111462-019 shall be included in the equipment condition-based preventive maintenance plan. Daily maintenance includes regular inspection of fluid joints for micro-leakage, verification of normal operation of panel status lights, and periodic checking of flow and pressure data for slow drift via system logs.
Replace valve sealing rings and sensor O-rings regularly according to the service life of consumables. When troubleshooting flow anomalies, first check the inlet liquid pressure and valve operating status to exclude external faults such as pipeline blockage and valve failure. All maintenance and disassembly involving internal flow plates and sensors must be performed exclusively by Lam Research authorized engineers with professional tools. On-site unauthorized disassembly is strictly prohibited.
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