ASML 16-006335D01 Motion Interlock PWB Assembly – Safety Control for Lithography Motion

The ASML 16-006335D01 is a motion interlock printed wiring board assembly, also referenced as PWB ASSY 03-006309D01 and 56G2693, designed for ASML lithography systems. This safety board provides critical interlock functions for motion axes, ensuring safe operation by preventing unintended movements during maintenance, process interruptions, or emergency conditions. Its robust design and fail‑safe logic contribute to the overall safety and reliability of the lithography tool.

Overview of the Interlock Board

The motion interlock board monitors the status of various safety inputs, such as door switches, emergency stop buttons, and axis limit sensors. It processes these signals and controls the enable/disable of motor drives and brakes. The board is designed with redundant safety paths to meet SIL 2 or PL d safety integrity levels, as required by semiconductor equipment standards.

Technical Specifications

• Part Number: 16-006335D01

• Assembly Number: 03-006309D01

• Cross‑Reference: 56G2693

• Board Type: Motion interlock PWB

• Safety Inputs: 8 channels (contact monitoring)

• Safety Outputs: 4 relay outputs (enable signals)

• Logic Voltage: 24 VDC

• Power Supply: 24 VDC, 10 W

• Safety Integrity: SIL 2 (IEC 61508), PL d (ISO 13849)

• Response Time: < 20 ms

• Operating Temperature: 0 °C to 50 °C

• Protection Class: IP30

• Dimensions: 180 mm x 120 mm x 2.0 mm

• Weight: 0.3 kg

Functional Safety Features

The board incorporates dual‑channel monitoring for critical inputs, cross‑checking of signals to detect faults. Output relays are force‑guided to ensure reliable switching in case of component failure. A watchdog timer monitors the board's microprocessor, and a fault latch retains error states for diagnostics.

Application Areas

Used in ASML TWINSCAN and PAS series systems to interlock wafer stages, reticle stages, and load ports.

Installation and Configuration

The board mounts in the system's backplane or a dedicated slot. Configuration is performed via DIP switches or software parameters to match system requirements.

Maintenance and Testing

Periodic functional testing of the interlock circuit is recommended to verify safety integrity. The board includes diagnostic LEDs for status indication.

Compliance

Complies with CE, RoHS, and SEMI S2 safety standards.

Conclusion

The ASML 16-006335D01 motion interlock PWB assembly provides essential safety functions for lithography motion control.