KEYWORDS Thermal Resistance | Thermal Interface | Semiconductor Test | Durability | Cycling | Device Under Test NOMENCLATURE DUT Device Under Test OSAT Out-Sourced Assembly and Test Rth Thermal Resistance S/TB Semiconductor Test and Burn-In TIM Thermal Interface Material ABSTRACT Many thousands of thermal interface materials (TIMs) exist due to the very wide … [Read more...]
Probability
INTRODUCTION After a couple of decades in the industry, I have observed that a number of experienced engineers can be intimidated by the topic of statistics—these columns will attempt to reduce the level of intimidation. While I have been interested in statistics for a few decades now, I don’t claim to be an expert. I will do my best to get things as right as I can, as well as … [Read more...]
Duocel® Metal Foam Heat Exchangers
Introduction As power-component technology advances and smaller packaging is required, thermal-management issues threaten to limit the performance of devices. As power dissipation rises, the inability to cool them may force designers to de-rate the devices’ performance by reducing current or switching speed and/or employing higher-voltage devices that are less efficient and … [Read more...]
Increased System Performance in Mobile Electronics Using High Performance Insulation-Graphite Composites
ABSTRACT Graphite foils with ultra-high spreading capacity and insulation sheets with ultra-low thermal conductivity were combined in a thermally stressed Google Pixel 3XL (Pixel) to significantly increase steady-state system performance, while maintaining safe device touch (skin) temperatures (TS ), as compared to the out-of-the-box device configuration. Four unique thermal … [Read more...]
Is That Normal?
Introduction These columns on statistics began by describing the field of statistics as using the mathematical laws of probability to deal with data uncertainty [1]. Many statistical tools developed to apply probability do assume that data are drawn from a normally distributed population, in which the probability distribution function, f(x), of a population follows Equation … [Read more...]
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