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[FAQ] Why do the leadframes look strongly oxidized or corroded?

FAQ: Logic and Voltage Translation > Quality and Manufacturing >> Current FAQ

Texas instruments has decided to change from non-roughened leadframe to single-side roughened leadframe for some of its parts. For this reason these devices look as if they have been corroded. Roughened leadframes are an improvement to the older leadframe technology and provide improved solder adhesion.

The parts previously had a non-roughened leadframe  as seen in the image below.

Here is an example of a roughened leadframe as seen by our customer. 

There is no reason to be worried if your leadframes look like this. The part will still operate correctly as per the datasheet.

Looking for a low voltage translator? Check out the AXC family that supports 0.7V to 3.3V translation!

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