During the ISAL 2015 automotive lighting symposium, Osram Opto Semiconductors introduced a 2,000 lm prototype headlamp LED called the Oslon Black Flat S. Compared with its predecessor, the headlamp LED has enhanced chips and thermal management. “Larger contact pads are partly responsible for better cooling – at 3.75×7.9mm it is slightly larger than its predecessor. When … [Read more...]
Solution to Heat Transfer in Phase Change Materials Unveiled
Dr. Patrick Shamberger, assistant professor at Texas A&M University, has found an “analytical solution to heat transfer in PCMs (Phase Change Materials) used in thermal energy storage and has identified the relative role of thermo-physical properties of different materials,” according to Phys.org. Shamberger is one of the lead researchers studying high-energy storage … [Read more...]
Thermal Invisibility Cloak Improves Heat Distribution in Electronics
A team of researchers from the Nanyang Technological University (NTU) in Singapore has developed a thermal invisibility cloak that would improve heat distribution in electronic devices by redirecting incoming heat. The cloaks are capable of guiding heat around a hidden object, thus resulting in complete thermal invisibility. “Based on carefully engineered metamaterials – … [Read more...]
Presentation on 4H SiC Epitaxial Wafer Quality and Layer Growth
Dow Corning will present at the 16th International Conference on Silicon Carbide and Related Materials (ICSCRM) Oct. 4 through 9. ICSCRM is a technical conference that provides information on electronics device technology based on silicon carbide (SiC) and related materials. It brings qualified experts together to discuss crystal growth and characterization, control of … [Read more...]
Effective Heat Spreading Angle
Dirk Schweitzer, Infineon Technologies AG, Am Campeon 1-12, 85579 Neubiberg, Germany dirk.schweitzer@infineon.com Introduction To accurately compute the thermal resistance of a layered structure, such as the Junction-to-Case thermal resistance of a power semiconductor, the heat spreading inside the structure has to be considered. The calculation of the spreading resistance is … [Read more...]
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