>From: "Dr. Imre Bartfai" >Hi, >your experiment was unsuccessfull, because of normal window glasses filter >the UV component out. That's why EPROM's have special quartz window. A >direct exposure can tamper the EPROM's content in less than one hour I >guess (at least at us, in a Summer Noon). In Canada? Hehe :) I guess I'll have to replace all the windows in my house with quartz glass :) - Keelan