INTEGRATED CIRCUIT THERMAL TEST METHOD ENVIRONMENTAL CONDITIONS – JUNCTION-TO-BOARD CONTENTS 1 Scope 12 Normative references 13 Definitions, symbols, and abbreviations 24 Specification of environmental conditions 24.1 Thermal test board 24.2 Ring style cold plate 24.2.1 Material 24.2.1 Clamp location 34.2.3 Example designs 34.3 Insulation requirements 34.4 Fluid temperature 44.5 Board temperature measurement 45 Measured and calculated parameters 55.1 Junction-to-board thermal resistance 55.2 Temperature sensitive parameter 55.3 Determination using Kfactor 65.4 Calibration equation 66 Test procedure 66.1 TSP calibration 66.2 Thermal equilibrium 66.3 Initial readings 66.4 Apply power 66.5 Steady state 66.6 Steady state measurements 77 Usage 77.1 Thermal simulation models 77.2 Simulation validation 77.3 JB junction-to-board thermal characterization parameter 78 Test conditions to be reported 8Figures1 Illustration of ring style cold plate 32 Top view with insulation removed 4Tables1 Thermal measurement test conditions and data parameters 8Annex A 9-i- JEDEC Standard No. 51-8