The IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm) was held at the Sheraton Hotel & Marina in San Diego, CA, May 31 – June 3, 2022. This was the 21st ITherm, which was first held in 1988. The conference was historically held every other year until 2016 when it switched to an annual schedule. ITherm 2022 was sponsored by … [Read more...]
Calculating Interface Resistance
Introduction The exposed surface area of many of today’s high-powered electronic packages is no longer sufficient for the removal of the heat generated during normal operation. Heat sinks are a commonly-used, low cost means of increasing the effective surface area for dissipating heat by means of convective air cooling. While the use of a heat sink lowers the fluid-side … [Read more...]
Statistics Corner: Probability
Statistical analysis is needed because data always have some degree of uncertainty; a value that we determine from a single measurement, or even set of measurements, is not necessarily going to tell us exactly what value we will determine with additional measurements. Statistical analysis uses the mathematics of probability to create tools that we can use to deal with … [Read more...]
Statistics Corner: Weibull Distribution
A little over a pandemic ago, the first article in this series on statistical analysis mentioned that a fundamental aspect of statistics is that one assumes a mathematical model that describes the distribution of a data set and then uses that model to estimate the probability that a given value or set of values will occur [1]. This allows us, for example, to estimate whether … [Read more...]
Thermal Comfort Considerations for Electronics Cooling and Design
Written by: Mark Hepokoski, ThermoAnalytics and Alex Ockfen, Meta Reality Labs Introduction ASHRAE defines thermal comfort as “that condition of mind that expresses satisfaction with the thermal environment” [1]. While engineers and designers are typically familiar with the thermal safety and compliance standards required in their industry [2], thermal comfort is less well … [Read more...]
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