In-Line Four Point Probe Tester

FPP230 Auto In-Line Four Point Probe Tester specially designed for photovoltaic process monitoring. It can quickly and automatically scan samples up to 230mm to obtain sheet resistance/resistivity distribution information at different locations of the sample.
As customers' automation levels increase, Millennial Solar's 5-point and 9-point In-Line Four Point Probe Testers have received wide acclaim from automation manufacturers and customers for their ultra-high accuracy and flexible design.

STRENGTHSPECIFICATION DOWNLOAD

Product features

•The accuracy can be benchmarked against the Four-Point Probe Tester machine, allowing customers to calibrate according to a unified standard

•Seamless connection with various automation manufacturers, data supports various transmission methods such as PLC/LAN/MES capture, etc.

•Customer-defined test points 1-9, the test time is up to 10 seconds to complete the 9-point test, minimizing the impact on production

•Compared with non-contact machines on the market, the cost is reduced, the accuracy is improved, and the multi-point testing speed has huge advantages

1% industry leading accuracy

Compared with non-contact eddy current measurement, the four-probe technology has higher resolution, good accuracy, long-term stability and wider measurement range. Non-contact eddy current measurements combine the sheet resistivity of the substrate with the resistivity of the surface layer and result in uncertainty.
Because the probe is spring-loaded, the probe compresses as the sample rises into the probe, creating a constant contact force.

Data collection visualization

Millennial Smart FPP software combines data collection and powerful analysis functions with an intuitive visual interface that can be used on the device itself or offline.
As shown in the figure, Smart FPP can display measurement results in 2D or 3D form to quickly visualize key film uniformity data. The software can easily switch between individual measurement parameter profiles and rotatable 3D plots to provide an optimal view of custom process parameters.

Specification	Content
Measure Size	Maximum size 230mmx230mm
Measuring Range	0. 01-1000 Ω/SQ
Number of Measuring Points	Can be customized according to customer requirements
Measurement Accuracy	<1% (standard resistance), and the measurement accuracy of the same model is guaranteed The test error between different test instruments is ±1%
Measurement Repeatability	The same sample is measured 10 times, and the range of the 10 data at each point is ≤3% (the range calculation formula is: among the data measured 10 times at the same point, the maximum value - the minimum value / the maximum value + the minimum value)
Measurement Speed	Test 5 points at the same time for ≤5 seconds, and test 9 points at the same time for ≤10 seconds. You can set the number of measurement points in the software as needed, up to 9 points.
Measurement data processing	With matching SPC function. Able to match automated equipment, calculate the resistance mapping diagram of each tube and each boat sample, and communicate with MES or automated PLC

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