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Lam Research 810-082745-003 Transmission Cable Assembly
Lam Research 810-082745-003
Product Overview
810-082745-003 is a critical Radio Frequency (RF) transmission cable assembly designed by Lam Research for its advanced plasma etching and deposition systems. Specifically, it is classified as a High-Power RF Coaxial Cable Assembly. Within Lam Research’s spare parts system, the “810″ prefix generally identifies hardware dedicated to RF transmission and matching applications.
Serving as the core “vascular channel” for RF energy transmission inside the equipment, 810-082745-003 enables low-loss and high-stability RF signal interconnection between RF generators, matching networks, RF sensors, and chamber feed-through structures. The component meets three core technical requirements: high-power RF signal transmission, precise characteristic impedance control (standard 50Ω), and ultra-low signal reflection (low Voltage Standing Wave Ratio, VSWR). These capabilities ensure efficient and high-fidelity delivery of RF energy to target functional nodes.
Product Specifications
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Parameter Name
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Parameter Value
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Product Model
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810-082745-003
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Manufacturer
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Lam Research
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Product Type
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High-Power RF Coaxial Cable Assembly
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Applicable Systems
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Lam Research 2300 Series and Versys Series Etch/Deposition Tools
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Characteristic Impedance
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50 Ω
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Operating Frequency
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Typically DC to 60 MHz (covering 2 MHz, 27 MHz, and 60 MHz frequency bands)
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Maximum Input Power
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Compatible with 3 kW to 5 kW RF power
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Input Connector Type
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Custom 7/16 DIN (Male/Female)
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Output Connector Type
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Custom 7/16 DIN or HN Type (application-dependent)
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Cable Outer Diameter
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0.5 inch to 0.75 inch (approximately 12.7 mm to 19 mm)
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Cable Type
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Low-loss, semi-rigid or flexible coaxial cable with double-layer shielding
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Length
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Customized to match internal equipment routing paths precisely
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Operating Temperature
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-40°C to +85°C (material-dependent)
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Bending Radius
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Minimum static bending radius compliant with Lam Research specifications
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Structure and Composition
810-082745-003 is a high-performance interconnection assembly professionally fabricated by integrating premium RF coaxial cables with precision RF connectors. Its internal structure consists of three core layers: central conductor, dielectric insulation layer, and outer conductor/shielding layer.
The central conductor serves as the primary transmission path for RF signals. It is manufactured from high-conductivity solid or stranded copper with silver-plated treatment, which minimizes skin effect loss at high frequencies and ensures stable current-carrying capacity under high-power transmission conditions.
The central conductor is tightly wrapped with a low-loss, high-dielectric-strength insulating medium, typically solid or foamed Polyethylene (PE) or Polytetrafluoroethylene (PTFE). The precise dielectric constant and dimensional accuracy of this layer strictly maintain the 50Ω characteristic impedance and standardized signal transmission speed of the cable.
The outer shielding layer adopts a multi-layer shielding structure composed of fine silver-plated copper braided mesh and aluminum/copper foil wrapping. This design delivers superior electromagnetic shielding performance, effectively preventing RF signal leakage and isolating external stray electromagnetic interference.
The outermost layer is a wear-resistant and chemical-resistant flexible sheath, which protects the internal structural layers from mechanical damage and environmental erosion. Both ends of the cable are equipped with custom precision-machined RF connectors exclusive to 810-082745-003. The central contacts and shell contacts of the connectors are silver or gold-plated with anti-loosening design, ensuring stable electrical contact and consistent impedance characteristics even under equipment vibration conditions.
Key Features and Advantages
1. Ultra-Low Transmission Loss and Excellent Phase Stability
Adopting low-loss dielectric materials and silver-plated conductor structure, 810-082745-003 achieves extremely low attenuation (insertion loss) across the full 2 MHz to 60 MHz frequency band. Optimized internal structure and material configuration minimize electrical length drift caused by temperature fluctuations during high-power RF transmission, maintaining long-term excellent phase stability. This performance is critical for multi-frequency and dual-frequency processes that require precise RF phase control, directly improving plasma uniformity and etching anisotropy.
2. Precise Impedance Control and Ultra-Low Reflection Coefficient
The cable assembly undergoes strict impedance consistency calibration during manufacturing, ensuring the characteristic impedance remains precisely at the 50Ω standard with minimal deviation over the entire cable length. Perfect impedance matching between custom end connectors and the cable body eliminates impedance discontinuity points. This enables ultra-low VSWR within the operating frequency range, minimizing signal reflection, protecting RF generator equipment, and maximizing power transmission efficiency.
3. Original Certified System Compatibility and Durability
As an original Lam Research RF cable solution, the length, bending radius, and connector specifications of 810-082745-003 are precisely customized for designated equipment routing layouts. Original assembly installation avoids excessive cable bending and mechanical stress, preventing performance degradation and premature failure caused by improper installation. The robust outer sheath and high-reliability connector design enable the cable to withstand repeated bending, plugging, and unplugging during routine equipment maintenance and chamber opening/closing operations, delivering long-term service durability.
Application Fields
810-082745-003 is exclusively applied to plasma process equipment in front-end semiconductor manufacturing. It is widely compatible with Lam Research 2300 Series etchers (including Kiyo dielectric etching and Flex conductor etching tools) and partial Versys Series deposition systems, acting as an indispensable core transmission component in RF links.
Typical application scenarios include: transmitting RF power from RF generators to the input terminal of automatic matching networks (e.g., 605-099141-004); delivering matched RF power from matching networks to equipment wall RF feed-through structures (e.g., 810-073479-005); and connecting RF sensors (e.g., 853-257153-232) with upstream and downstream equipment. The component ensures lossless, high-fidelity RF energy transmission, stabilizing plasma status and guaranteeing repeatable process results. For manufacturers of advanced logic chips, DRAM, and 3D NAND flash memory, the high reliability of 810-082745-003 is the fundamental guarantee for qualified RF link performance, uniform etching processes, and high production yields.
Related Products
- 810-082745-002: Same-series RF cable assembly with differentiated length or connector configurations, designed for alternative internal equipment RF routing connections.
- 810-082745-004: Higher-power version of the same-series cable, featuring larger conductor cross-sectional area or thicker insulation layers for higher RF power transmission requirements.
- 605-099141-004: RF impedance matching network assembly, whose input and output ports require connection with 810-082745-003 or equivalent series cables.
- 810-073479-005: RF feed-through structure, with its atmospheric-side interface connected to the output terminal of matching networks via 810-082745-003.
- 853-257153-232: RF directional coupler/sensor module, serially installed in the 810-082745-003 transmission path for real-time RF power monitoring.
- 852-002374-701: Specialized installation and maintenance kit for the RF cable assembly, including dedicated torque wrench heads and cleaning tools for reliable connector fastening.
- 800-109736-003: Matching support clamp and cable management component for 810-082745-003, used for standardized internal equipment wiring and preventing excessive cable bending.
Installation and Maintenance
Pre-Installation Preparation
Installation of 810-082745-003 must be performed in a fully safe environment where the Lam Research equipment is completely powered off and all RF generators are fully discharged. All operations must be conducted in a cleanroom. Before installation, inspect the new cable assembly thoroughly to verify that the model, length, and connector type are fully consistent with the original component. Check connector central contacts and threaded interfaces for damage, deformation, or foreign contaminants.
Plan a reasonable cable routing path during installation to avoid sharp-angle bending and contact with sharp equipment edges. Fasten RF connectors exclusively with a dedicated torque wrench in accordance with Lam Research standard torque specifications (marked on connectors) to minimize contact resistance and eliminate RF leakage. Ordinary wrenches are prohibited to prevent connector damage and improper torque fastening.
Maintenance Recommendations
Routine maintenance of 810-082745-003 focuses on regular inspection of physical integrity. During daily patrols, check for sheath wear, cracks, chemical corrosion, as well as connector discoloration, burn marks, and loosening. Inspect cable bending status and ensure no extrusion or over-stretching after each equipment Preventive Maintenance (PM) and chamber opening/closing operation.
Replace the assembly immediately if connector arcing marks or cable physical damage are detected. Damaged cables may cause RF arcing under high-power transmission conditions, potentially leading to RF generator damage and fire hazards. On-site temporary repair of damaged cables is strictly prohibited. Establish installation and replacement record files to standardize component replacement cycle management and ensure long-term stable equipment operation.
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