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Semiconductor & ESC Fiber Optic Temperature Monitoring System

Fiber optic temperature monitoring for semiconductor ESCs, etching and deposition equipment, with configurable channels and industrial outputs.

SEMICONDUCTOR AND ESC TEMPERATURE MONITORING SYSTEM

Optical Temperature Measurement for ESC and RF Equipment

Passive fluorescence probes provide temperature feedback at selected equipment points where RF fields and electromagnetic interference complicate electrical sensing.

The system brings together probes, optical signal processing and selected outputs. Probe mounting, channel count and equipment interfaces are configured for the application.

  • Selected thermal points in an electrostatic chuck or semiconductor heating assembly.
  • Coordinate sensing-tip placement in the ESC base, protected fiber routing and the instrument interface with the equipment designer.

Temperature Feedback for Semiconductor Equipment

This fluorescence fiber optic temperature monitoring system measures selected points in semiconductor heating and processing equipment. Applications include electrostatic chuck bases, etching and deposition equipment, and RF or induction heating assemblies.

The sensing tip uses temperature-dependent fluorescence and connects optically to the measurement instrument. The configuration supports 1–64 channels, a −40 °C to +240 °C range, 0.1 °C resolution and ±1 °C accuracy. Channel count, probe geometry and extended-range or enhanced-accuracy options are selected for the equipment.

A measurement period below one second supports temperature trend acquisition. Optical signal diagnostics help identify sensor faults, while RS485 / Modbus and configurable 4–20 mA output support the planned equipment interface. Measurement period describes acquisition timing; it is separate from the installed probe’s thermal response.

Position the Probe Around the Thermal Process

An ESC installation begins with the target temperature point and the available sensing-tip location in the chuck base. The equipment designer defines the mounting arrangement and route to the external instrument.

  • Identify the locations needed to characterize the heating process.
  • Confirm probe diameter, fiber length and protected routing.
  • Match optical channels and outputs to the equipment control architecture.

Track Temperature Trends and Sensor Status

Continuous point measurements support equipment monitoring and fault analysis. Optical signal diagnostics provide information about the sensing path alongside the temperature readings.

  • Record changes at the selected ESC or heating points.
  • Use sensor-status information when investigating abnormal readings.
  • Configure Modbus data or analog outputs for the receiving equipment.

Technical Specifications

Select the final configuration around the equipment design and required measurement points.

Power supplyAC/DC 220 V
Temperature range−40 °C to +240 °C; extended range by configuration
Channels1–64, configured to the equipment
Measurement accuracy±1 °C; enhanced accuracy by configuration
Resolution0.1 °C
CommunicationRS485 / Modbus
Analog output4–20 mA option
Measurement periodLess than 1 second
Optical fiberQuartz; length configurable up to 20 m
Probe diameter2.5 mm; smaller sizes by configuration

Typical Project Uses

Select the sensing location and integration arrangement around the thermal question each channel needs to answer.

Electrostatic chuck temperature monitoring

Review this product’s role, installation method and related components against the actual application.

Semiconductor etching equipment

Review this product’s role, installation method and related components against the actual application.

Deposition equipment

Review this product’s role, installation method and related components against the actual application.

RF and induction heating equipment

Review this product’s role, installation method and related components against the actual application.

Frequently Asked Questions

Where is the probe installed for ESC measurement?

The sensing tip can be integrated at a selected location in the electrostatic chuck base. Position, mounting and protected optical routing are agreed with the equipment designer.

How many temperature points can the system monitor?

The system is configurable from 1 to 64 channels. The final quantity follows the approved measurement-point plan.

Which interfaces are available?

RS485 / Modbus communication and a configurable 4–20 mA analog output are available. Confirm the required output configuration with the equipment I/O plan.

Does a measurement period below one second mean the probe responds thermally in one second?

No. The measurement period describes the instrument’s acquisition cycle. Thermal response also depends on probe construction, mounting and contact with the measured part.

Can the system identify sensor faults?

Optical signal detection and diagnostic algorithms support sensor-fault identification. Confirm the required status reporting and integration for the selected instrument.

Related Components and Systems

These products serve different roles in the same optical temperature-measurement path.

Plan the Right Product Configuration

Tell us how this semiconductor fiber optic temperature monitoring will be used. INNO can review the measurement point, installation route, channel requirements and system interface against the selected product.

  • Measurement target: Selected thermal points in an electrostatic chuck or semiconductor heating assembly.
  • Installation method: Coordinate sensing-tip placement in the ESC base, protected fiber routing and the instrument interface with the equipment designer.
  • Product selection: ESC or heating-zone measurement locations
  • System requirement: Equipment communication and alarm requirements

Include the operating temperature range, number of measurement points and required communication or alarm outputs where applicable.

Tell Us About Your Application
Contact Engineering

Tell us about your application, or contact us directly by Email: info@innofj.com