The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
White light emitting diodes (LEDs) are appearing in general illumination applications. Clusters of such LEDs can replace an incandescent light bulb of equal luminosity on the merit of considerably low power consumption. However the optical performance and working life of these LED packages are strongly dependent on the temperature of the p-n junction of the LED. Hence it is very critical to determine...
A transient thermal model used to monitor the temperature distribution in real-time in a long-stroke moving-magnet planar actuator is presented. The temperature distribution in the stator coils of the planar actuator depends on the trajectory of the levitated magnet plate as the set of active coils changes with the position of the translator. Using the presented real-time model, the transient thermal...
Calibrated 3-D numerical simulations are employed to quantify the influence of design parameters like emitter area, aspect ratio, distance to trenches, and thickness of AlN heatspreaders on the thermal transient behavior of silicon-on-glass (SOG) bipolar transistors. A larger silicon island enclosed in the trenches reduces the thermal resistance at the expense of a slower thermal response of the system...
A new method was developed for modeling electronic packages. The method is applied to a BGA 256 on board. The simulation results were compared to measured results of a thermal cycle test and a thermal shock test. The methodology has shown to be accurate and efficient. This work also shows that thermal transient behavior must be considered in situations where high gradients can occur, like thermal...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.