14 Jun
2009
14 Jun
'09
9:05 p.m.
Eric Smith wrote:
Though even if you remove the filter or lens, you
still won't get that
much shortwave UV, because the bulb in those is usually in a glass
envelope, and glass blocks a lot of the shortwave UV. That's why tubes
made for shortwave UV, and the windows on EPROMs, are made of quartz
rather than normal glass.
I have a gadget which erases EPROMs using a flash tube. It is
the Dataman Strobe Eraser, and has a mains-powered flash tube
that's similar to a camera flash. You place the tube over the
EPROM window, pull the trigger and presumably test that the EPROM
has been erased. If not, give it another burst.
--
John Honniball
coredump at gifford.co.uk