31 Mar '12, 3pm

looks like there is gonna be some reflow skillet action in my near future

looks like there is gonna be some reflow skillet action in my near future

Ben and I have found that many plastic connectors have low melting points while other connectors (SMD USB connectors with metal housings) have very high reflow points. This was a major problem on the GM862 EVK v2 boards. Time and time again, either the USB connector would fail to reflow because of the metal housing reflecting the heat, or we would bake the board so long that the USB would reflow but the plastic Camera connector would be completely hosed. In other words, you have to destroy the plastic connectors or have larger connectors pop off in your hand. The main culprit in our case was the over-head heating elements in our industrial reflow oven. Since our toaster oven has elements on both top and bottom (the top elements heats up much faster), a toaster oven would have the same Achilles heal, melting the softer components on the top side of the PCB.

Full article: http://www.sparkfun.com/tutorials/59

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