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Modeling the Low- and High-Frequency Impedance of Thermal Reliefs

Boekbijdrage - Boekhoofdstuk Conferentiebijdrage

Thermal reliefs are structures that decouple a via thermally from a large conductor plane and as such create a thermal barier in order to obstruct heat conduction through these planes during the soldering process. Two models have been developed that describe the impedance of a thermal relief structure at DC and at RF. The first model gives an estimate of the excess resistance that is added by introducing a thermal relief on the connection of a hole to a large conductor plane, which is directly related to the thermal resistance. The second model estimates the excess inductance that is introduced in the connection by the thermal relief at RF frequencies. © 2013 EMC Europe Foundation.
Boek: Proceedings of EMC Europe 2013, Brugge
Pagina's: 138 - 142
ISBN:9781467349796
Jaar van publicatie:2013