Need microscope for IC inspection

"Nima Rezai" <Nima@ngi.de> wrote in message
news:39oaqgF614s62U1@individual.net...
Dear readers,

I work as distributor of electronic components. To recognize used ICs
(also
called "Pulls" or "Refurbs") I need a microscope, which enables me to
better
see scratches on the surface, bent leads, tin traces, etc.

Do you have any recommendations about what kind of microscope is well
suited
for this purpose and where to buy?

Best regards
Nima
Click to expand...
A jewelry supply. They call them 'findings'.
 
N

Nima Rezai

Guest
Dear readers,

I work as distributor of electronic components. To recognize used ICs (also
called "Pulls" or "Refurbs") I need a microscope, which enables me to better
see scratches on the surface, bent leads, tin traces, etc.

Do you have any recommendations about what kind of microscope is well suited
for this purpose and where to buy?

Best regards
Nima
 
In article <39oaqgF614s62U1@individual.net>, "Nima Rezai" <Nima@ngi.de>
wrote:

Dear readers,

I work as distributor of electronic components. To recognize used ICs (also
called "Pulls" or "Refurbs") I need a microscope, which enables me to better
see scratches on the surface, bent leads, tin traces, etc.

Do you have any recommendations about what kind of microscope is well suited
for this purpose and where to buy?

Best regards
Nima
Click to expand...
In the US,
http://www.capovani.com/dp/cat/107/63160/search_results.cfm?side=2&subjec
t=1

Al
 
"Nima Rezai" <Nima@ngi.de> wrote in message
news:39oaqgF614s62U1@individual.net...
Dear readers,

I work as distributor of electronic components. To recognize used ICs
(also
called "Pulls" or "Refurbs") I need a microscope, which enables me to
better
see scratches on the surface, bent leads, tin traces, etc.

Do you have any recommendations about what kind of microscope is well
suited
for this purpose and where to buy?

Best regards
Nima
Click to expand...
I use a Zoom Microscope to 0.5 to 7X. You can find one on eBay.
 
On Tue, 22 Mar 2005 06:10:28 GMT, EN <res808c4@earthlink.net> wrote:

I use a Zoom Microscope to 0.5 to 7X. You can find one on eBay.
Click to expand...
http://www.sciencekit.com/category.asp_Q_c_E_740725 that's a neat one. if
i was going local i'd try canadawide scientific, besides microscopes in
price ranges from that's 'nice' to 'who would you like me to kill this
time?', it's the only place i know off hand that supplies prepackaged
frozen cats.

--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
 
On Tue, 22 Mar 2005 06:10:28 GMT, "EN" <res808c4@earthlink.net> wrote:
"Nima Rezai" <Nima@ngi.de> wrote in message
news:39oaqgF614s62U1@individual.net...
Dear readers,
I work as distributor of electronic components. To recognize used ICs
(also called "Pulls" or "Refurbs") I need a microscope, which enables me to
better see scratches on the surface, bent leads, tin traces, etc.
Do you have any recommendations about what kind of microscope is well
suited for this purpose and where to buy?
Best regards
Nima
I use a Zoom Microscope to 0.5 to 7X. You can find one on eBay.
Click to expand...
Hi Nima, I do the same. In the last years we went from development of
electronics to distribution, buying and selling, and now we even
starting to make our own parts (fabless, we let others produce). We
now do all: development, trade etc.

What you need is a good magnifying glass. You can find them at shops
that sell glasses and/or jewelry. Go for 10x, 20x. I have such a
magnifying glass. But I also use a microscope of Biolux (a cheap one),
40X to 1024X. Only the 40X is useful for your purposes.

The problem with a microscope is that the parts have to be very near
to the glass of you microscopy. It is difficult to focus on pins of
the component that can't get near enough. Also the light source is
difficult as most microscopes are made to check things with light
passing through. So you would have to use several lamps to light the
components. I would really go for a good magnifying glass, like the
foldable ones with a millimeter scale. Or use the ones that are used
for pcb inspection. Probably available at Farnell / RS components etc?

And yes, I have encountered refurbs too. Even put in tape again! One
of my customers even told me a story of his friend buying a reel of
expensive components - they tested them, they were ok. Only to find
out later that only the first 50 on the reel were real parts, and the
others 4950 fake...

Often such activities take place in China. Trading with China is
totally different than trading in our countries. You have to make sure
the Chinese buyer/seller has no "loss of face" etc. That is why we
have a man there who checks out companies, makes contacts etc, with
insight in the Chinese culture. Feel free to ask our services.

I have a question: I am searching for lists of unreliable companies,
and of foto's or refurbs or fake parts. If you have any, I would
welcome them very much.

Regards,
Pieter Hoeben
email: pieter@NOSPAMhoeben.com (remove NOSPAM to send me email)
 
"jim dorey" <skaar@ns.sympatico.ca> wrote in message
news:eek:psn075iy0fr5e9h@trebuchet...
On Tue, 22 Mar 2005 06:10:28 GMT, EN <res808c4@earthlink.net> wrote:

I use a Zoom Microscope to 0.5 to 7X. You can find one on eBay.

http://www.sciencekit.com/category.asp_Q_c_E_740725 that's a neat one.
.... snip...
Click to expand...


I just went to eBay, search for zoom microscope and I got a whole bunch of
zoom microscopes,

http://search.ebay.com/zoom-microscope_W0QQfkrZ1QQfromZR8

All of these would do the job. Seems there's alot of good feedback from the
sellers too.
 
On Tue, 22 Mar 2005 06:10:28 GMT, "EN" <res808c4@earthlink.net> wrote:

"Nima Rezai" <Nima@ngi.de> wrote in message
news:39oaqgF614s62U1@individual.net...
Dear readers,

I work as distributor of electronic components. To recognize used ICs
(also
called "Pulls" or "Refurbs") I need a microscope, which enables me to
better
see scratches on the surface, bent leads, tin traces, etc.

Do you have any recommendations about what kind of microscope is well
suited
for this purpose and where to buy?

Best regards
Nima

I use a Zoom Microscope to 0.5 to 7X. You can find one on eBay.
Click to expand...
A good quality (640 x 480 x 30 fps) USB2 webcam works remarkably well.
They can be made to focus very close in. Show / store the results on
PC.

--
- René
 
Dave VanHorn wrote:
Walmart has a nice USB microscope on sale.
Click to expand...

It looks like the Intel/Mattel QX3 microscope has been upgrades to
the QX5 with white LED lighting, better resolution and a faster frame
rate. It might actually make a usable digital microscope now.
http://www.compuvisor.com/qx5diblmicom.html

--
?

Michael A. Terrell
Central Florida
 
I have a 3, and the only real complaint I have with it is the lighting.
I've used it many times, and it always makes a good impression.. "wow you
have a video microscope?" When I tell them I only paid $50 for it, they are
amazed.
 
Dave VanHorn wrote:
I have a 3, and the only real complaint I have with it is the lighting.
I've used it many times, and it always makes a good impression.. "wow you
have a video microscope?" When I tell them I only paid $50 for it, they are
amazed.
Click to expand...

I have the QX3 as well but the slow frame rate bothers me. I have
vision problems and any visible flicker gives me headaches. I used to
work at a TV station running 16 mm film. I could see the single frame
"Inset commercial here" with the film running at 24 frames per second.
No one else could see it, but after trying with several films that just
arrived they finally believed me. The new one is supposed to have a
faster frame rate and I'd like to try one to see if its any better for
my needs.

--
?

Michael A. Terrell
Central Florida
 
"Michael A. Terrell" <mike.terrell@earthlink.net> wrote:
The new one is supposed to have a
faster frame rate and I'd like to try one to see if its any better for
my needs.
Click to expand...
I've got one on the way for my son's birthday, hopefully we can make
some of the third-party Mac software work. Plenty of PeeCees around,
but this would be an ideal Mac toy...
 
William, P.N., Smith wrote:
"Michael A. Terrell" <mike.terrell@earthlink.net> wrote:
The new one is supposed to have a
faster frame rate and I'd like to try one to see if its any better for
my needs.

I've got one on the way for my son's birthday, hopefully we can make
some of the third-party Mac software work. Plenty of PeeCees around,
but this would be an ideal Mac toy...
Click to expand...

Its a TWAIN compliant USB camera so it should work OK, even if you
can't make the supplied software work. Its a simple graphics
manipulation program that's rather irritating to use.

--
?

Michael A. Terrell
Central Florida
 
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