A way to erase OTP components?

From: Dwight K. Elvey <dwightk.elvey_at_amd.com>
Date: Wed Jan 22 18:53:00 2003

>From: "Eric Smith" <eric_at_brouhaha.com>
>Doug Jackson wrote:
>> A UV LED?????
>> I was aware that we have White, and blue (Through Phospor, and funky
>> doping), but these UV devices are new to me...
>Blue LEDs don't require any phosphor. The phosphors are used to get
>*other* colors from blue or UV LEDs, such as white. Agilent made some
>really nice white LEDs that didn't have the remaining blue tint of
>the common ones, but they were expensive and no one wanted to pay
>the premium, so they've been discontinued.
>The earliest blue LEDs (Silicon Carbide) had very low output, so RGB LEDs
>needed two blue dice to one each red and green to get decent matching.
>However, so much R&D has been done to improve them that now blue LEDs
>(gallium nitride) are now the *most* efficient, at least in the visible

 That doesn't explain short wave UV LED's. If you had
enough energy to erase an EPROM, it would be strong
enough to damage the cornea of your eye. I've experimented
with long wave UV when I was at Intel ( years ago ).
Even a week under one of these had no effect.
Received on Wed Jan 22 2003 - 18:53:00 GMT

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