[PEDA] Gold embrittlement in solder joints

[Mark witherite]

Hi Everyone,
Does anyone know the maximum recommended plating thickness you can use for gold with out causing gold embrittlement in the solder joint. My application is for BGAs. I attended a class and PCB east a few years ago and was introduced to a new term "Sacrificial Gold platting" . I interpreted it to mean the minimum thickness required to prevent oxidation and not cause embrittlement of the solder joint. So does anyone know what thickness I should speck for my boards?
Thanks
Mark


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