Date: 2006-07-16 19:45:29
On 2006-07-16, at 18:26, Rainer Buchty wrote: >> Does anyone here have experience how long I need to put them in >> the sun >> to completely erase them? > > Months to years. And even then... > > You should use a dedicated UV EPROM eraser. > > Maybe your grandma has one of those ancient "home tanners" (the ones > which will cause skin cancer over time due to heaviest UVA and UVB > emission) -- they (i.e. the old ones, not newer models with dedicated > filters) usually work also. That's what I always used... but the problem was that it was made to "imitate" the sun and as the sun itself it emitted a lot of IR, next to UV, which made the chip extremely hot during the erasing process. I even tried to decouple the heaters from the UV lamp but it was constructed in such a "clever" way that I found it not worth to try. Still it worked and I never fried neither melted the ICs with it. :-) Message was sent through the cbm-hackers mailing list
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