Electronics Forum | Thu Mar 23 12:40:37 EST 2006 | patrickbruneel
Russ, On a serious note it's impossible to optical see the bottom. The only way to verify is cross sectioning. Tin can't handle stress very well unless lead is added to make the alloy more elastic. We come back on the subject when the "field" starts
Electronics Forum | Wed Mar 22 03:00:09 EST 2006 | meritajs
Hi All, We have problem with Zevatech FS-730 This machine shows error E202062: "System error: T axis of head: Parameter error when T axis performs PTP action.(Kind of unit)" and it stop running. It does not pick up components. At low speed it works s
Electronics Forum | Thu Mar 23 13:12:43 EST 2006 | Chunks
I think 10% of us already knew this. I saw the boomerang coming years ago when LF was first mentioned. Did you guys see the tin whisker mention on the History Channel last night? It was on Technological Disasters (I believe). Didn�t see WML, bu
Electronics Forum | Fri Mar 24 09:33:26 EST 2006 | Rob
Hi Samir, That's cos it's already an offence to sell such an item in the EU. If you even paint a childs toy with a coating of more than 0.2% lead you can face 2 years in prison (admittedly with 3 nice meals a day, internet access, gym etc - I think
Electronics Forum | Fri Mar 24 11:45:47 EST 2006 | russ
thanks Rob, that really explained a lot to me. I definitely understand why it is important for the european countries. I never really thought the directive was bad in it's intentions. But you are right it is the implementation of this that is a f
Electronics Forum | Fri Mar 24 12:16:37 EST 2006 | patrickbruneel
Darn Rob you're brilliant You just solved the dilemma of micro cracks and hot tear in lead free, just add a softer metal like.....and the joints won't crack. You wrote "BTW: Lead is far softer & dissolves far more easily than copper or tin, hence wh
Electronics Forum | Sat Mar 25 07:23:05 EST 2006 | davef
Rob It's documented that lead doesn't leach out of landfills. So, how does Eurolanders health become affected by lead in landfilled electronic products? Isn't the potential for lead poisioning from using leaded glass greater a danger? Given that
Electronics Forum | Fri Mar 24 03:39:15 EST 2006 | aj
try using drill holes.. i have used these in the past, just recently we used them and placed 0.5mm pitch devices fine.,. This should sort you out for this batch but get onto the Customer and tell them you need fiducials for reliability on placement.
Electronics Forum | Fri Mar 24 08:44:08 EST 2006 | Mark
I have used tooling holes, connector holes, via holes, and others. As long as the hole is consistent than it should not be a problem. I have never tried a pad for a fiducial before because of the paste being on it and thought it would not work. So ma
Electronics Forum | Fri Mar 31 15:23:10 EST 2006 | jdumont
We have a C-740. I agree with the second pass statement. Be careful how much you overlap. Also make sure the board is very clean before you coat or its worthless. You will be able to get very accurate results without masking. Let me know if you need
