piclist 2000\06\08\125546a >
Thread: Silicon af PIC's
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face BY : Jilles Oldenbeuving email (remove spam text)



Today, at work a PIC16C558 JW blew up. That gave me the chance to take it
apart
(the ceramic that is) and put the silicon under a microscope. The microscope
showed
nice pictures of the silicon. I think i could see the program memory (not
sure about this)
becouse there was a 'smooth' area (when viewed with the naked eye) that
consisted
of 14 rows (instruction width = 14 bits)...

I also noticed the microchip logo between 2 bonding pads! It constisted of
the cicle-with-the-M-cut-out-of-it (tm). Also, under the logo where 4 lines
of
alphanumeric characters. My best guess is that it is the silicon rev number
and some other things. Does anybody know what the 4 lines below the logo
mean?


Regards,

Jilles Oldenbeuving
spamBeGonejilles.....spam.....rendo.dekooi.nl

<003601bfd16a$6e64c6a0$04653dc3@oldenbeuvingpc> 7bit

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