Electronics Forum | Mon Mar 12 09:55:55 EDT 2007 | coop
I am aware of the IPC A-610 standards on acceptability of electronics, but this place builds our products to an even higher standard. the problem is on the two leading corners of the IC's as they go into the wave.
Electronics Forum | Fri Mar 16 08:01:53 EDT 2007 | ck_the_flip
SAC coated leads on certain components require more dwell time. If you find that you have top-side wetting issues, slow the conveyor down a bit or increase your wave height, or, a combination of the 2.
Electronics Forum | Mon Mar 19 03:59:25 EDT 2007 | dougie001
is the component placed off all the time or does it vary? if the placement offset is consistent then there is every chance that the machine requires calibration (providing your program is correct) If it varies then there could be lots of things caus
Electronics Forum | Mon Mar 19 11:20:10 EDT 2007 | realchunks
When you say "No wetting" you mean the paste looks the same as it did going in but dried out? Or is it that you are not getting toe fillets?
Electronics Forum | Tue Mar 20 17:53:44 EDT 2007 | diesel_1t
is not getting toe fillet, you can se like a "paste dome" on the pad so the paste is not flowing to the pin...
Electronics Forum | Thu Mar 22 21:31:47 EDT 2007 | davef
Don't know a thermal couple that will meet your "+/- 1 degree C in a 700 degree C" requirement. Look here: http://www.pentronic.se/eng/teori/termoel/termo9.asp Anyhow, have you considered screwing the leads to a terminal block?
Electronics Forum | Sat Mar 24 07:50:04 EDT 2007 | davef
It's possible that 90/10 is being replaced by LF in many ball suppliers' [Alpha Metals, Kester, AIM] inventories.
Electronics Forum | Mon Apr 02 09:03:35 EDT 2007 | P.Saravanan
What i want to know is If we are using RoHS compliance component in Non RoHS process means leaded process is there any solderability issue ?
Electronics Forum | Fri Apr 13 03:20:57 EDT 2007 | bart.lozie@page.be
Hello, why focuss only on the printer and the paste, maybe the problem isn't there, maybe the problem is in the oven, is the component a havy one? because leadfree solder can't lift as mutch as a leadcontaining solder. regards Bart
Electronics Forum | Tue Apr 17 02:42:58 EDT 2007 | Wayne
Obviously, it is not considered the ROHS compliance product already. One or few components are not ROHS, how can it be ROHS product? If it is agreeable by your end customer, you should list down the part which are using leaded product before hand, at
