Me
Guest
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 Posted:
Sun Oct 16, 2005 4:35 pm Post subject:
Looking inside parts with x-ray microscope? |
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Hi,
I need a source of above-UV or near x-rays that must be able to look
through the black plastic of electronic components. the object is
checking wafer visually, no high resolution is needed, we only want to
know the position of the wafer (GaAS 0.2*0.2 mm) in the device. It is
a precise Hall sensor. It will be used to check many devices.
We don't care if we just have to shine on it on a fotographic filem or
whatever. But we would like to stay as low in the frequency range as
possible, so prefer a little-above-UV to x-rays.
My question, maybe somebody of you already has experience on this
area:
What would be needed to look trhough the plastic of electronic
devices? What generators could be used? Maybe some kind of near x-ray
microscope? What is there at a reasonable price? Any comment is
welcome.
Regards,
Pieter Hoeben
email: pieterREMOVETHIS@hoeben.com (remove REMOVETHIS)
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Robert Baer
Guest
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| Posted:
Mon Oct 17, 2005 8:35 am Post subject:
Re: Looking inside parts with x-ray microscope? |
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Me wrote:
| Quote: | Hi,
I need a source of above-UV or near x-rays that must be able to look
through the black plastic of electronic components. the object is
checking wafer visually, no high resolution is needed, we only want to
know the position of the wafer (GaAS 0.2*0.2 mm) in the device. It is
a precise Hall sensor. It will be used to check many devices.
We don't care if we just have to shine on it on a fotographic filem or
whatever. But we would like to stay as low in the frequency range as
possible, so prefer a little-above-UV to x-rays.
My question, maybe somebody of you already has experience on this
area:
What would be needed to look trhough the plastic of electronic
devices? What generators could be used? Maybe some kind of near x-ray
microscope? What is there at a reasonable price? Any comment is
welcome.
Regards,
Pieter Hoeben
email: pieterREMOVETHIS@hoeben.com (remove REMOVETHIS)
Try infrared as well; some plastics are relatively clear; the chip i |
think is rather opaque. |
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