Rainer,

I understand what you are looking for, as we did it ourselves.

You need to find a thin film house that can deposit NiC [or Ti], Ni [or Cu], Au [flash] in the pattern you desire onto the glass substrate.  

My experience has been that this works well for cleaning evaluations and underfill flow evaluations [but the wetting characteristics are not exactly the same as a laminate...], but I would not put any merit in mechanical test results [such as temp cycle, etc.] as the pads are much more likely to lift off the glass than your solder is to fail.

Once the array of patterns is deposited on the glass, just dice them apart and pick & place as if they were normal parts.

When I get back later today, I will see if I can dig up any possible sources for you.  In the mean time, I suggest looking for those that have thin film capability, or those that sputter [or evaporate] on glass routinely, such as optical filter manufacturers, etc.


Steve Creswick
Sr Associate - Balanced Enterprise Solutions
http://www.linkedin.com/in/stevencreswick
                         616 834 1883




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