VCEsat and VF are given for terminal and chip. How can we use them properly? (What is the meaning?)

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VCEsat and VF of the terminal are ON voltages measured on the main terminals and include voltages induced on the internal wiring of the module. Use them as a reference when On voltage is measured on the terminal.
On the other hand, VCEsat and VF characteristics of the chip indicate IN voltage closest to the semiconductor chip. To obtain the conduction loss that occurs in IGBT and FWD, calculate it from the ON voltage value of the chip.”

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