Letter 26128

Does Electroless Ni require post treatment?  

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A 2-3 microns thickness of Electroless Ni applied on Al sputtered layer (of about 3 microns thick)- does it require any post-treatment if the major object is to achieve high resistance to corrosion? If so, what is the adequate treatment?

Meirav Shaham
FA engineer - Jerusalem, Israel, Israel

You did not specify what environment will this be exposed to. Also, what is your definition of high resistance to corrosion. For most commercial aplications a minimum of 12 microns is specified. The thickness you mention might work well but just for solderability purposes.

Guillermo Marrufo
Monterrey, NL, Mexico

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