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LAM Research 98008RFRSA10P1
Model: 98008RFRSA10P1
Product Name: RF Matching Network / RF Impedance Match Assembly for Etch Systems
Product Introduction: This part is a radio-frequency matching assembly used in LAM etch tools to match the RF generator output to the plasma chamber load. It minimizes reflected power, stabilizes impedance and supports repeatable plasma processing.
Detailed content
Technical Specifications:
- Frequency: 13.56 MHz standard for LAM etch RF systems; confirm multi-frequency option from BOM
- Nominal Impedance: 50 Ω system
- Matching Elements: Variable capacitor bank, vacuum-variable capacitors or fixed capacitors according to subassembly; inductors/relays in auto-match versions
- Power Handling: Documentation for similar LAM matchers lists up to approximately 1500 W continuous in some configurations and higher in generator-specific designs; verify nameplate
- VSWR: Matched-state target commonly below 1.2:1; actual value depends on tune position and load
- Tuning Control: Motor-driven or electronically controlled auto-matching; some configurations use analog control voltage
- Cooling: Air-cooled or water-cooled according to tool and submodel
- Interface: Coaxial RF ports, control bus/analog or digital tuning interface
- Compliance: SEMI S2/S8 environment and safety context for semiconductor tools
Functional Features:
- Automatic Impedance Tuning: Adjusts capacitance/inductance to follow changing plasma load
- Reflected Power Reduction: Maintains forward power efficiency and protects generator
- Process Stability: Supports uniform plasma density and etch rate
- Diagnostics: Tune position, fault and thermal data through tool RF controller
Application Scenarios:
- Plasma Etch: TCP, Kiyo, Versys, 2300 and related LAM etch chambers
- High Aspect Ratio Etch: Stable RF coupling for deep trench/contact structures
- Dielectric and Metal Etch: Controlled ion energy and plasma uniformity
- R&D Etch Tools: Reproducible impedance profiling for process development
Structural Characteristics:
- Enclosure: RF-shielded metal assembly, aluminum or steel according to version
- Tuning Mechanism: Step motors, vacuum capacitors, ceramic insulators and coaxial connectors
- Mounting: Rack or chamber-adjacent matcher bracket per LAM tool layout
Working Principle: The RF generator applies 13.56 MHz power to the matcher. The matcher varies reactive elements so the complex chamber impedance is transformed to 50 Ω. When forward and reflected waves are balanced at the target VSWR, maximum power couples into plasma with minimal return loss.
Installation Requirements:
- De-energize RF generator and discharge capacitors before service.
- Use correct coaxial cable type, torque and RF grounding.
- Confirm cooling supply, airflow or water circuit before power-on.
- Run LAM RF autotune and reflected-power verification after installation.
Usage Precautions:
- Do not operate with damaged coaxial connectors or burned tuning components.
- Do not exceed generator-rated forward power for the installed matcher revision.
- Inspect capacitors, relays and motor drives periodically for arcing or drift.
- Follow SEMI and LAM electrical safety rules; RF exposure and high voltage are present.
