Fuseable Links - no guarantees??
Warren
wxfield at shore.net
Sat Jun 15 01:25:44 PDT 1996
I have never paid much attention to the protection of firmware or the
technical issues revolving around such schemes...was wondering:
I recently saw an add for a UK based group that says they can take a PIC
OTP micro and read the prom (for a fee, of course) - How the heck is this
done?? I have my suspicion that they (somehow) magically peel off the
ceramic coating (without destroying the chewy center), get a circuit mask
and 'micro probe' the I/O of the IC...they then download the secret recipe
to the afore mentioned 'chewy center'.
Is this close to accurate?? How is it 'done' ???
-Just Curious
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