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| Date: | Fri, 28 Jan 2005 06:28:22 -0600 |
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Some Flash memory chips can be damaged by magnets. Very strong magnet. X ray
can also corrupt Flash (Electromagnetic radiation) Still not very likely. Too
bad I did not learn this before I X-Rayed my watch.
-----Original Message-----
From: Brian Ellis [mailto:[log in to unmask]]
Sent: Thursday, 27 January 2005 2:32 AM
To: [log in to unmask]
Subject: Re: [TN] Rework with magnets
Don't believe everything you hear. I cannot see how a magnetic field
could affect any semiconductor or ferrite components, once it was
removed. Yes, ferrites could become saturated with the magnet close by,
but would revert to normal as the magnet was removed. I suppose any
component using Hall effect may be affected (unlikely), but these don't
grow on trees.
Brian
Arturo Medellin wrote:
> Hello everyone :
>
> In our Process we have a PCA with shields covering components like
flash memories and ICīs
> We tested different rework methods in order to remove the shields but we
do not have successfully , somebody told me that the magnets can help us ,
but my concern is that the magnetism can delete the information recorded in
the flash memory or affect the frequencies in coils and transformer with
ferrite core
>
> does anyone can help me to clarify my concern
>
> Thanks in Advance
> Arturo Medellin
>
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