I didn't know how common that was. Its definitely interesting, I was speaking from personal experience with these packages. I remember being offered chips with

I didn't know how common that was. Its definitely interesting, I was speaking from personal experience with these packages. I remember being offered chips with lower failure rates too, I can't remember the ratios but it was certainly worth considering. We ended up testing the different boards off the line before doing a larger assembly (and further testing of course) because of the component failure rates. If it wasn't the solder it was the chip itself - causing really hard to find bugs I might add. I remember having two boards off the same line together, one chip could do an operation and other couldn't. This bad chip was being used for software production too...