How Chuanxiang’s 5-in-1 Four-Probe Test Machine Optimizes Resistivity and Block Resistance Measurement

Precision measurement of resistivity and block resistance is fundamental in semiconductor manufacturing, materials research, and electronics testing. Traditional methods often require multiple instruments, manual calibration, and extended processing times, which can limit efficiency and accuracy. Chuanxiang Electronic’s 5-in-1 Four-Probe Test Machine addresses these challenges by providing a comprehensive, high-precision, and versatile solution for resistivity and block resistance measurement.

Established in 2003, Dongguan Chuanxiang Electronic Equipment Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing, and intelligent electronic testing solutions. With extensive patent reserves and industry recognition, Chuanxiang has developed a series of advanced four-probe test systems, including RTS-8, RTS-1345, DP-SX1934, and RTS-4, each tailored for different applications and measurement requirements.

1. Multi-Functionality and Integrated Testing

The 5-in-1 Four-Probe Test Machine consolidates multiple measurement capabilities in a single instrument:

• Resistivity measurement of semiconductor wafers

• Block resistance testing for various electronic materials

• Single-point, center-five-point, and edge-to-five-point testing modes

• Dual-mode data display and export for flexible reporting

• Vacuum adsorption and touch screen operation in select models

This integration reduces the need for multiple instruments, streamlines workflow, and minimizes the potential for measurement errors caused by transferring samples between devices.

2. High Precision Measurement

Accurate resistivity and block resistance measurement is critical for quality control and research. Chuanxiang’s 5-in-1 system achieves this with:

• Constant current source with six adjustable settings (1μA–100mA)

• High-precision digital voltmeter with ±0.1% accuracy

• Probes made of tungsten carbide or high-speed steel for stable contact

• Automatic correction of probe spacing and sample size errors

These features ensure that readings remain reliable across different sample sizes and material types, improving data accuracy and reproducibility.

3. Wide Measurement Range

Chuanxiang’s Four-Probe Test Machine covers:

• Resistivity: 10⁻⁷ to 10⁵ Ω·cm

• Block Resistance: 10⁻⁶ to 10⁶ Ω/□

This wide range accommodates both highly conductive materials and high-resistance insulators, making it suitable for diverse applications from semiconductors to advanced materials research.

4. Flexibility in Sample Handling

The system supports wafers and samples up to 400mm × 500mm, and features adjustable probes to adapt to varying thicknesses and dimensions. Advanced models include:

• RTS-1345: Fully automatic testing and data analysis, independent operation function

• RTS-4: Multi-purpose comprehensive measurement with intuitive function selection and fast speed

• DP-SX1934: Designed for specialized semiconductor testing applications

This versatility allows laboratories and manufacturing facilities to standardize testing procedures, reducing training time and operational complexity.

5. Efficiency and Workflow Optimization

By consolidating multiple tests into one machine, Chuanxiang’s solution enhances operational efficiency:

• Automated measurement routines reduce manual intervention

• Fast data acquisition enables high-throughput testing

• Integrated software allows direct connection to PCs for data analysis and reporting

These capabilities enable companies to scale testing operations without increasing labor or equipment costs.

6. Comparison of Chuanxiang Four-Probe Models

Insight: Selecting the right model depends on testing volume, sample type, and automation requirements.

7. Practical Considerations for Implementation

1. Sample Preparation: Ensure clean, flat surfaces for optimal probe contact.

2. Calibration: Regularly verify current source and voltmeter settings.

3. Environmental Conditions: Temperature and humidity can affect resistivity readings; maintain controlled conditions.

4. Software Integration: Use data export features for trend analysis and process optimization.

8. FAQ

Q1: What materials can be tested with the Four-Probe Test Machine?
A: It supports semiconductors, conductive films, insulators, and other electronic materials.

Q2: How does multi-point testing improve measurement accuracy?
A: It averages readings across multiple points, reducing local variation and providing more reliable results.

Q3: Can the machine operate independently from a PC?
A: Yes, models like RTS-1345 support independent operation and on-screen results.

Q4: What maintenance is required for probe tips?
A: Probes should be regularly inspected for wear; tungsten carbide and high-speed steel provide long service life.

Q5: How fast can a wafer be measured?
A: Depending on the model, measurement time ranges from a few seconds to minutes per wafer, supporting high-throughput operations.

9. Conclusion

Chuanxiang’s 5-in-1 Four-Probe Test Machine provides a highly precise, versatile, and efficient solution for resistivity and block resistance measurement. Its wide measurement range, multi-point testing, and automation features make it suitable for:

• Semiconductor manufacturing

• Scientific research institutions

• Material science labs

• Quality control in electronics manufacturing

By integrating multiple testing functions into a single instrument, Chuanxiang enables laboratories and manufacturers to optimize workflow, improve measurement accuracy, and enhance operational efficiency, setting a new benchmark in precision electronic testing.

CTA: Contact Chuanxiang Electronic to explore advanced Four-Probe Test Machines and upgrade your material measurement capabilities.

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​Dongguan Chuanxiang Electronic Equipment Co., Ltd.