Re: Erasing OTP's and EPROMS by heat?


nermal wrote:
Interesting: I tried zapping a bunch (with windows) at 60 KV @ 10 mA for
about 60 minutes but with no effect. These were '2716' series.

How far from the target? I had mine a few cm away in a microfocal
system and I think it took around 20 or 30 minutes to erase/destroy
them. I can't remember the exact details as this was around 20 years
ago - although I may still have my lab notebook from then.

It may be that at 60keV there is much less interaction with the silicon
- the x-rays don't do much if they are passing straight through.

John

.

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