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Old 11th July 2010, 08:23 PM   #1
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Default Erasing EPROMs

I have a few Eproms here I need to get erased to fill them with new data. I don't have an eraser, though. You'll probably have noticed by now, I'm a cheap guy. So the sun is currently roasting like 10-12 hours a day. Can I just put the little fellas outside in the sun to get them erased?
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Old 12th July 2010, 11:38 AM   #2
marce is offline marce  United Kingdom
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Try a high speed tanning booth, you can top up the tan and erase the Eproms at the same time.
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Old 12th July 2010, 04:11 PM   #3
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I just took a look at some datasheets. For erasing, Eproms need light with a wavelength of about or lower than 253 nm. This is rather hard UV light neither present in tanning boothes nor that much in the sunlight thanks to our ozone layer. I should try the mercury vapor lamps we have at work. Even our frequency multiplied Nd:YAG is only able to produce 266 nm. >_<

Last edited by EBM_dude; 12th July 2010 at 04:19 PM.
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Old 12th July 2010, 04:47 PM   #4
kevinkr is offline kevinkr  United States
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Might try to find a cheap used, but working eraser on eBay.
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
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Old 13th July 2010, 12:44 PM   #5
djQUAN is offline djQUAN  Philippines
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go to your nearest hospital and ask if you could use one of their UV sterilizing devices. I have seen some with four 40watt tubes vertically mounted 360degree array to sterilize entire rooms. (might not be a good idea to stay in the room while erasing :P ) or something that looks like an industrial dish washer with UV germicidal lamps inside and stick the eprom in there.
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