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Reflow Oven Evaluation Using The ECD OvenRIDER

Posted on Mar 20, 2002

Characterization of the thermal performance of modern convection reflow ovens is important in ascertaining the process window for a particular product or application. This is especially true for lead free processes. Using typical manufacturing materials such as FR4 can be problematic in that the product changes thermal characteristics after a relatively short number of thermal excursions. Other potential test vehicles such as a stainless steel or aluminum plate are more robust and able to withstand repeated thermal cycles, however, introduce significantly different thermal conductivities that masks potential weaknesses in oven design. Trying to match these physical properties within a single test vehicle is necessary in order to characterize the various oven parameters. Such materials exist in composites with highly insulating properties similar to typical FR4 material as well as a high tolerance to numerous thermal excursions. This paper investigates the performance of three ...

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