Faulty 32LQFP

[jesuscf]

Today I received a tray of 250 micro-controllers.  One of them was not like the others: pins 25 to 32 were not bent properly (see picture, the one to the left).   It is the first time I see something like that.  Anybody has seen it before?  Any idea of how common this problem may be?

[zapta]

It's a collector item.

[dannyf]

It is a highly automated process so if it happens it must be extremely rare - I would suspect if the chips come from a legit source.

[Precipice]

This is what happens when you shut a tray on a chip that's not centred. I suspect the chip started out fine...

[Psi]

This is what happens when you shut a tray on a chip that's not centred. I suspect the chip started out fine...

yeah, thats my conclusion as well.

[Jeroen3]

This is what happens when you shut a tray on a chip that's not centred. I suspect the chip started out fine...

Seems most likely. But do not forget that packaging the die is the part of the process with the highest failure rate.

[true]

I've had this happen on some orders, QFPs between 32 and 64 pins, from Mouser. I've also had only half of the pins on an edge bent like this, the other half completely fine, no transition period...weird stuff.

I would say about 1/200 QFPs I get have failures like this out of the box/tray/bag/packaging.