Ossila FOUR-POINT PROBE User Manual Download Page 19 | Manualshive

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Four-Point Probe System

User Manual

18

Ossila Limited © 2022

Figure 10.2.

Measurement settings for the test head.

5.

Start the measurement.

6.

The system should measure a sheet resistance between 9.9 and 10.1

kΩ/square

(within

1% of 10 kΩ/square).

Figure 10.3.

Example measurement of the test head.

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Summary of Contents for FOUR-POINT PROBE

Page 1: ...Manual version 3 1 G Product code T2001A Product Version 3 0 Software version 1 0 ...

Page 2: ...7 4 Requirements 8 5 Unpacking 9 5 1 Packing List 9 5 2 Damage Inspection 9 6 Specifications 10 7 System Components 11 8 Installation 11 9 Operation 12 9 1 Taking a Measurement 12 9 2 Software Settings 12 9 2 1 Basic Settings 13 9 2 2 Saving Results 14 9 2 3 Advanced Settings 14 10 Test Head 17 10 1 Taking a Measurement 17 11 Troubleshooting 19 11 1 Installation and Setup 19 11 2 Error Messages an...

Page 3: ...imising damage to delicate samples e g polymer films that are only a few nanometres thick It is operated via the specifically designed PC software which automatically calculates appropriate geometrical correction factors for the sample to give accurate values for the sheet resistance If the sample thickness is provided the software will further calculate resistivity and conductivity The Ossila Sol...

Page 4: ...ail Address info ossila com declare that the DoC is issued under our sole responsibility and belongs to the following product Product Four Point Probe System T2001A3 Serial number T2001A3 xxxx Object of declaration Four Point Probe System T2001A3 The object of declaration described above is in conformity with the relevant Union harmonisation legislation EMC Directive 2014 30 EU RoHS Directive 2011...

Page 5: ...ναφερόμενος εξοπλισμός συμμορφώνεται με τη σχεnκή νομοθεσία εναρμόνισης της ΕΕ που υπάρχει σnς προηγούμενες σελίδες του παρόντος εγγράφου Español Declaración de conformidad UE Fabricante Ossila BV Biopartner 3 building Galileiweg 8 2333 BD Leiden NL Declaramos bajo nuestra única responsabilidad que el siguiente producto se ajusta a la pertinente legislación de armonización de la UE enumerada en la...

Page 6: ...nto indicado está em conformidade com a legislação de harmonização relevante da UE mencionada na s página s anterior es deste documento Română Declaraţie de conformitate UE Producător Ossila BV Biopartner 3 building Galileiweg 8 2333 BD Leiden NL Declară pe proprie răspundere că echipamentul prezentat este în conformitate cu prevederile legislaţiei UE de armonizare aplicabile prezentate la pagina ...

Page 7: ...on regulations and British Standards Use of any other electrical power cables adaptors or transformers is not recommended 3 3 Hazard Icons The following symbols can be found at points throughout the rest of the manual Note and read each warning before attempting any associated operations associated with it Table 3 1 Hazard warning labels used in this manual Symbol Associated Hazard Electrical shoc...

Page 8: ...odification or service has been carried out by anyone other than an Ossila engineer The Unit has been subjected to chemical damage through improper use The Unit has been operated outside the usage parameters stated in the user documentation associated with the Unit The Unit has been rendered inoperable through accident misuse contamination improper maintenance modification or other external causes...

Page 9: ...ystem and the minimum computer specifications for the Ossila Sheet Resistance software Table 4 1 Four Point Probe System requirements Power 24 VDC Operating Systems Windows 10 or 11 32 bit or 64 bit CPU Dual Core 2 GHz RAM 2 GB Available Hard Drive Space 194 MB Monitor Resolution 1440 x 900 Connectivity USB 2 0 Ethernet requires DHCP ...

Page 10: ...tick pre loaded with the user manual software installer QC data and USB drivers 400 450 nm FTO coated glass substrate 60 x 60 x 2 2 mm 10 kΩ resistor test head 5 2 Damage Inspection Examine the components for evidence of shipping damage If damage has occurred please contact Ossila directly for further action The shipping packaging will come with a shock indicator to show if there has been any mish...

Page 11: ...imum deviation from the true value Precision is the maximum deviation between identical measurements useful for comparative measurements Sheet Resistance Accuracy Precision Measured at Range 100 mΩ square 8 3 200 mA 1 Ω square 2 0 5 200 mA 10 Ω square 1 0 5 200 mA 100 Ω square 1 0 05 20 mA 1 kΩ square 1 0 03 20 mA 10 kΩ square 1 0 02 2 mA 100 kΩ square 2 0 05 200 μA 1 MΩ square 8 0 5 20 μA 10 MΩ s...

Page 12: ...le Ossila Sheet Resistance Lite Installer vX X X X exe on the USB memory stick provided II Follow the on screen instructions to install the software 2 Connect the 24 VDC power adaptor to the power socket on the rear of the unit 3 Connect the unit to your PC using the provided USB B cable or an Ethernet cable if preferred I If you are using a USB connection and the unit is not detected please refer...

Page 13: ...te software The window shown in Figure 9 1 will open 4 Set the appropriate settings in the software explained in more detail in Section 9 2 5 Click the on off toggle button I The system will attempt to pass a current between through the sample II If a current can be passed though the sample the system will measure the sheet resistance which will be displayed in the program III If a thickness has b...

Page 14: ...hape of the sample is irregular consider whether it is closer to rectangular or circular and then estimate what size of that shape could fit within the sample III Long Side Rectangular Sample Sets the length of the long side of the sample in mm if the sample is rectangular I This is required for calculating the appropriate geometrical correction factor IV Short Side Rectangular Sample Sets the len...

Page 15: ...of measurements to save II Save Opens a file dialog window to choose where to save the data III Saved Data Format The applied current measured voltage and measured sheet resistance are saved to the file The mean and standard deviation of the sheet resistance measurements are saved to the same file placed after the data readings If a thickness is provided the resistivity and conductivity values are...

Page 16: ... the spacing between each of the probes in mm I This is required to determine the appropriate geometric correction factors for the sample being measured II Samples per Point Select the number of samples to be taken for each measurement I A higher number of samples per point will improve the accuracy and precision of the measurement However this will increase the time taken for it to be performed ...

Page 17: ...h ranges as needed III The maximum current values for each range are shown in the range selection box IV Polarity Sets whether the measurement polarity is positive or negative V Voltage Limit Sets the maximum voltage the measurement can apply to the sample in volts I If the voltage limit is exceeded the measurement will stop VI Current Limit Sets the maximum current the measurement can apply to th...

Page 18: ... the four point probe head on the system with the test head I To do this first disconnect the cables then remove the 5 screws attaching the head to the system II Remove the four point probe head and place the test head on the system III Attach the test head using the screws then connect the cables 2 Plug in and switch on the system 3 Allow at least 30 minutes for the system to warm up 4 Start the ...

Page 19: ...18 Ossila Limited 2022 Figure 10 2 Measurement settings for the test head 5 Start the measurement 6 The system should measure a sheet resistance between 9 9 and 10 1 kΩ square within 1 of 10 kΩ square Figure 10 3 Example measurement of the test head ...

Page 20: ...n the computer Install the software on a computer with Windows Vista or newer The software has not installed properly Try reinstalling the software Cannot connect to the system via USB The USB cable may not be connected properly Ensure the USB cable is firmly plugged in at both ends The USB cable may not be connected to a working USB port Try connecting the unit to a different USB port on the comp...

Page 21: ...eter must be able to fit all probes The diameter of a circular samples is shorter than 3 times the probes spacing Short edge cannot be longer than the long edge The short edge is greater than the long edge for a rectangular sample Sample removed stopping measurement The system has detected that the sample has been removed Error communicating with system The software is unable to connect to the sys...

Page 22: ...rates for a variety of processing techniques Product codes S301 S302 S303 S304 Product code E101 12 2 Related Equipment Spin Coater Syringe Pump Product high quality coatings without any substrate warping Perfect for busy labs with limited space High precision programmable single and dual syringe pumps for automatic dispensing of solutions Product code L2001A3 Product codes L2003S1 L2003D1 UV Ozon...

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