MKS ASTeX 09437702 ASTRON Remote Plasma Source (RPS) Power Supply Module

Product Description

09437702 is MKS ASTeX OEM power supply unit for ASTRON series Remote Plasma Source (RPS), commonly used as a spare sub-assembly for Applied Materials semiconductor wafer processing equipment. This RF power supply generates and controls high-frequency RF power to ignite and sustain plasma inside the RPS torch. It is the matched power source for the ASTRON 2L RPS unit (AMAT PN 0920-00013 we previously covered). It is a rack-mountable industrial RF generator with integrated power control, interlock protection and fault diagnostic circuits for semiconductor chamber clean processes.

Key Functions

• RF power generator dedicated for ASTRON series remote plasma source; delivers regulated RF power to the plasma torch assembly
• Power range up to 2000W, fixed operating frequency optimized for NF3 and fluorinated process gas dissociation for chamber dry cleaning
• Integrated RF matching network to automatically tune impedance, maintain stable plasma ignition under changing process gas and pressure conditions
• Digital communication interface to communicate with AMAT tool host controller; receives power setpoint and returns status, alarm and diagnostic data
• Multi-channel safety interlock monitoring: coolant flow/temperature, vacuum pressure, door interlock, gas flow fault, over-temperature and over-power protection
• Front panel LED indicators and status display for power, RF active, fault, interlock alarm; stores fault history codes for maintenance troubleshooting
• Water-cooled design for continuous 24/7 fab operation; EMC filtered to prevent RF noise interference with other wafer tool electronics

Application Scenarios

• MKS ASTeX ASTRON 2L remote plasma source RF power supply (PN:09437702), paired with AMAT 0920-00013 RPS torch assembly
• Applied Materials semiconductor wafer processing tools: CVD, PVD and etch chamber dry cleaning, photoresist ashing
• 200mm wafer fabs, memory and power chip manufacturing equipment for periodic chamber cleaning cycles
• Legacy semiconductor tool spare part replacement for installed ASTRON RPS systems

Common Issues & FAQ

• Plasma fails to ignite / RF cannot turn on: Check cooling water flow, temperature and pressure; verify all safety interlock loops are closed; inspect RF coaxial cable and connector; check gas supply pressure and flow to RPS torch.
• RF unstable / intermittent plasma drop-out: Inspect RF matching network tuning; check for contamination or erosion inside RPS quartz torch liner; verify coolant circuit for scale buildup causing overheating.
• Interlock fault alarm triggered: Check door interlock switches, vacuum interlock, coolant temperature sensor and gas pressure transducers. Common root cause is degraded temperature sensor or low cooling water flow.
• Over power / over temperature fault: Inspect heat exchanger for fouling; verify load impedance match with torch assembly; check for short or leakage in RF cable assembly.
• Refurbished / replacement unit note: After installation, perform water leak test, RF power tuning calibration, interlock function validation and full plasma ignition test together with the ASTRON torch. Confirm firmware revision compatibility between power supply and tool host controller, validate full chamber clean recipe before returning wafer tool to production service. Inspect internal capacitors and cooling circuit for aging on refurbished units.