grinding down chips was Re: QX10 graphics board

Chuck Guzis cclist at
Thu Jan 26 23:21:00 CST 2006

On 1/26/2006 at 9:24 PM Richard wrote:

>Aren't there chips (i.e. crypto) that are designed to be destroyed
>if they are disassembled?  I don't know what they do to the package,
>but if I had an IC with an EPROM containing my crypto keys, I'd want
>the chip to self-destruct during an attempt to pry open the package

I don't know about grinding, but the guy at MIT who figured out the Xbox
innards did something of the sort (regardless, it's a great read):

The operative term is "decapsulating";  if you google on it, you can find
some interesting stuff, like:


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