0402s...

[Mike]

I was a bit skeptical about how well the RV would cope with a dense 1.2mm array of 0402s, but the trial run with resistors looks good....

[phonoplug]

Likewise - recently I had to build a board for an array of 150x SOD323 diodes, which needed to be as close together as possible. Was a bit nervous designing the board in how close I dared to go, but in the end with a small tweak here and there on the machine it was placing them very well.

[Mike]

Why would you want an array of diodes like that...?
(My job will be LEDs, just tested with R's as they're rather cheaper!)

[phonoplug]

To be honest I'm not 100% sure, but they are a very specific diode and its part of something that's very high speed, hence why they needed to be as close together as possible.

I do a lot of seemingly 'odd' things for this client, but they really know what they are doing!

[Jason]

I bet it's not that high speed any more as that array must have quite a bit of capacitance and lead inductance.

[phonoplug]

I think in this case it depends on how you are using it!

I do know a little bit more about it than I'm letting on but I can't really go into more detail because of NDA. The 3 directors of the company I build this for all have doctorates in physics, so I don't pretend to understand everything I build for them!