Tough job to sign up for: You want at least 64 MegaPixel images of 320
boards, and you want high quality optics (can see a 2 pixel wide bond
wire), and you want cheap and you want to do it fairly quickly!
On Fri, Mar 23, 2018 at 11:18 AM, Tempea, Ioan <
[log in to unmask]> wrote:
> Thanks Wayne,
>
> Trouble is hybrid is 4”x4” and I need images of about 320 of them. We have
> an SEM, but it would take weeks to do all the photo shooting.
>
> Best regards,
>
> Ioan
>
> De : Wayne Thayer [mailto:[log in to unmask]]
> Envoyé : March 23, 2018 2:07 PM
> À : TechNet E-Mail Forum; Tempea, Ioan
> Objet : Re: [TN] Industrial scanners
>
> Hi Ioan-
>
> Your problem is that optical systems, particularly inexpensive ones, have
> extremely small depth of field if they have enough magnification to see 1
> mil bond wires. Typically, a 200X optical microscope will have a depth of
> field of under 6 microns. You might get by with 100X, but then it starts
> getting difficult to see the bond wires clearly.
>
> As already suggested, the exception to this is Keyence, but they are
> definitely not cheap!
>
> What about sending the part out in order to get your pictures? Many
> universities have SEMs available which provide beautiful, dimensionally
> accurate images. I don't know if anybody has a Keyence system where they
> will provide images for hire, but that's also a possibility.
>
> Wayne
>
> On Wed, Mar 14, 2018 at 11:55 AM, Tempea, Ioan <
> [log in to unmask]<mailto:[log in to unmask]>>
> wrote:
> Dear Technos,
>
> We need to take HD images of microelectronic modules. By HD I mean I need
> to see 1 mil wires and to be able to accurately measure component spacing
> down to 5 mils.
>
> Do you know of any cheaper, desktop scanner level as opposed to AOI,
> equipment able to do this? ESD safe, etc.
>
> Thank you,
>
> Ioan Tempea, P. Eng.
> Sr. Manufacturing Engineer | Satellite Systems
> +1.514.457.2150 x3556<tel:%2B1.514.457.2150%20x3556>
> office<tel://+1.514.457.2150%20x3556/>
> [log in to unmask]<mailto:[log in to unmask]
> ><mailto:[log in to unmask]<mailto:ioan.tempea@
> mdacorporation.com>>
>
>
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