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Tokyo Electron 381-642664-1
Product Introduction
The 381-642664-1 is a semiconductor equipment interface board used in Tokyo Electron platforms, including Clean Track MARK series coat and develop systems and process chamber controllers. It transfers digital, analog, and bus signals between chamber devices and the equipment main controller.
Detailed content
Technical Specifications
Input power is 24 volt direct current nominal with ±10 percent tolerance. Digital inputs are 24 channels. Digital outputs are 16 channels. Analog inputs are 4 channels with 12-bit resolution. Communication uses the TEL equipment bus and VME-backplane interface. Digital I/O response is less than 1 millisecond. Operating temperature is 15 to 35 degrees Celsius. Storage temperature is -10 to 60 degrees Celsius. Protection rating is IP20 for cabinet-installed card environments.
Functional Features
The board performs signal conditioning, level translation, sensor interfacing, actuator driving, fault diagnostics, and per-channel status indication. VME connector architecture supports high-speed backplane communication. SEMI-standard connectors provide reproducible chamber wiring.
Material Composition
The card uses an FR-4 multilayer printed-circuit board, ESD-safe flame-retardant plastic front panel, gold-plated contacts, tin-plated steel shielding where required, and surface-mount semiconductor components.
Structural Characteristics
The unit is a rack-mount VME card with front status LEDs, rear backplane pins, and multi-pin chamber-side connectors. Card guide rails and fixed screws secure the board in the equipment chassis.
Working Principle
Chamber sensors send digital and analog signals to the board. Internal conditioning circuits filter, scale, and convert the signals, then the VME and equipment bus transmit data to the main controller. Controller commands return through the board to drive valves, motors, heaters, and interlock elements.
Installation Requirements
Install the card in the designated TEL chassis slot with the power removed. Seat the VME and IME connectors fully. Use specified TEL cables for all field wiring. Bond the chassis ground before applying 24 volt direct current.
Usage Precautions
Follow ESD handling procedures. Do not bend or scratch the rear connectors. Verify analog calibration after replacement. Keep the chassis cooling airflow unobstructed. Replace only with identical 381-642664-1 configuration to preserve software compatibility.
