By now, it is a tired truism to say that the consumer electronics industry has consistently delivered on its promise to provide products that are smaller, faster, and more feature-rich at an ever cheaper price. The main driver for these trends has been the increasing integration of more functions on a single chip. In spite of its greater performance, the PC of today has far … [Read more...]
High Resolution, Real Time Micro-thermal Imaging — Steady State and Pulse Measurements on Microscopic Semiconductor Targets
Thermal imaging of microscopic targets has evolved over the past 20 years to the point where real time "true-temperature" mapping with 50 milliKelvin sensitivity and 2.75 �m spatial resolution is possible. Recently, the capability to study and evaluate high frequency transient pulses has been added. Infrared imaging methods provide unequaled ease and flexibility for … [Read more...]
Estimating Natural Convection Heat Transfer for Arrays of Vertical Parallel Flat Plates
A simple formula to estimate the natural convection heat transfer coefficient on a flat plate was presented in a preceding column [1]. If, instead of a single plate, we wish to consider a closely spaced array of vertically oriented parallel flat plates, a different formula is required. The geometry to be considered appears in Figure 1 and is typical of that for a vertically … [Read more...]
Diamonds are a Thermal Designer's Best Friends
Different forms of carbon, such as processed natural graphite, pyrolytic graphite, diamond-like carbon, and synthetic diamond, offer lots of possibilities for maximizing conductive heat transfer.Synthetic diamond has already found its place as a common solution for heat spreaders inside semiconductor laser components, where temperature stabilization is of utmost importance for … [Read more...]
Advanced Techniques for IC Surface Temperature Measurement
Introduction: The Need for IC Surface Measurement Techniques Current trends in microelectronic design generate challenges in both the design and test of integrated circuits (ICs). One area that has been gaining increased relevance with regard to the microelectronic evolution is thermal management/analysis, which proves essential in the domain of IC design to prevent reliability … [Read more...]
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