In the European project SEED (Supplier Evaluation and Exploitation of DELPHI), the methods for thermal characterization of active components developed in the predecessor DELPHI (Development of Libraries of PHysical models for an Integrated design environment) were evaluated by component suppliers. The methods were improved for practical application and extended to a large … [Read more...]
The thermal conductivity of aluminum oxide
Aluminum Oxide (Al2O3) is an important ceramic for the electronics industry. Besides its use as a passivation layer on Silicon, the ceramic is often used as a carrier for thick and thin film passive components and for other small printed circuit boards. A relatively low cost is combined with a relatively high thermal conductivity, especially when compared to FR4 board material. … [Read more...]
Test methods for characterizing the thermal transmission properties of phase-change thermal interface materials
All phase change thermal interface materials are designed to minimize the thermal resistance in an interface between a heat generating component and a heat sink. How well they achieve this goal in a specific application depends on how judiciously their phase change characteristics are matched to the interface specifications. The purpose of this paper is to present the results … [Read more...]
Heatsink attachment and thermal interface effects on production assembly and repair
Today's market offers many heatsink attachment and thermal interface options. Your design decisions usually aim to optimize product performance at minimum cost. Secondary effects, not always sufficiently considered, significantly impact production cost, delivery performance, and reliability. These effects stem from the impact of the heat sink attachment design on the product … [Read more...]
Heat pipe fundamentals
The use of heat pipes in thermal management is increasing rapidly as power densities in electronics continue to rise. Heat pipes are attractive because they can typically carry 100 or more times as much heat as an equivalent piece of solid copper. The basic principle of heat pipe operation is very simple. A small amount of working fluid, typically water, is sealed inside a … [Read more...]
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