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Applied Materials 0100-71271
Product Name
VMEbus Digital I/O Module.
Product Introduction
This module provides digital input acquisition and digital output control for VMEbus based semiconductor and flat panel display systems. It interfaces external switches, sensors, valves, indicators, and interlock devices with the host controller.
Detailed content
Technical Specifications
Manufacturer identification: Applied Materials / AKT in related platform sources.
Bus: VMEbus compliant.
Digital inputs: multiple channels according to system configuration; exact count not consistently published for this number.
Digital outputs: multiple programmable channels according to system configuration.
Signal conditioning: provided for improved noise immunity in listed sources.
Isolation: listed as protective isolation against electrical noise in supplier data.
Dimensions: 135 by 186 by 119 mm in one supplier listing.
Weight: 1.2 kg in one supplier listing.
Operating temperature and ingress rating: confirm from original board manual because public results do not give consistent values.
Functional Features
Acquisition of discrete field signals into the VME controller.
Programmable digital outputs for actuators and alarms.
Signal filtering and isolation for high noise fab environments.
Interlock support for safety and process sequencing.
Structural Characteristics
VME plug in board with digital I/O headers, conditioning components, isolation circuitry, status indicators, and mechanical frame for rack insertion.
Working Principle
External contacts or sensors drive digital inputs; the onboard circuit debounces, conditions, and transfers state to the VME host. The host writes output commands that activate relays, valves, lamps, or interlock devices through conditioned output drivers.
Application Scenarios
AKT CVD, PECVD, and VME based tool automation.
Wafer or substrate handling interlocks.
Gas line, vacuum, and chamber auxiliary digital control.
Legacy semiconductor rack I/O expansion.
Installation Requirements
Verify VME slot, I/O address, and system firmware compatibility.
Connect field wiring with proper shielding and terminal torque.
Confirm input voltage levels and output load ratings before energizing.
Power down the VME chassis before card insertion.
Usage Precautions
Do not exceed rated input voltage or output current.
Check isolation and grounding to prevent ground loops.
Inspect indicators and I/O responses during commissioning.
Replace with identical revision when safety interlocks are involved.
