Electronics Forum | Tue Feb 24 15:32:10 EST 2015 | swiese242
Hi there. I have an IP3 machine that refuses to > power up the MFU cart on side 1. I have already > replaced the I/O card but still no dice. Is > there a relay or fuse that I need to check to get > this to power up? The machine will not operate
Electronics Forum | Mon Jul 26 19:32:03 EDT 1999 | Steve Gregory
| Can anyone give me the virtues of SMT package castellations vs. no castellations with particular reference to the ruggedness and reliability of the solder joints? Any references or studies that you can point me to? Also, although I'm in favor of
Electronics Forum | Thu Aug 31 18:59:55 EDT 2000 | Brian W.
Our customers use OSP, HASL, immersion tin and immersion gold as board finishes. If I recommend a finish to the customer, it is one of the immersion finishes or OSP. Those finishes have the advantage of a flat surface to deposit paste. HASL has va
Electronics Forum | Fri May 17 10:08:47 EDT 2013 | shrikant_borkar
HI, We are facing problem of Dry solder due to QFN Grounding Solder not Drain out in Via hole. also No drain hole on PCBs now we have 15k stock. which is leading to massive Rework. We have Tried by minimizing Ground Square apertures. but no Improvem
Electronics Forum | Thu Jul 17 11:36:41 EDT 2003 | caldon
My AOI wish list would include features that: 1)Character recognition, 2) Correct Placement (including missing), 3) Solder joint inspection (solder present), 4) Shorts, 5)Polarity check, 6)Coplanarity, 7)gerber/or Cad compatible (no gold boards), 8)e
Electronics Forum | Tue Jul 12 16:03:09 EDT 2005 | autoequip
I have recently been testing a new Iron that will be introduced on the market soon. The temp drop is coming in at 30c versus most other irons I have tested drop about 70c the tips are elctroplated and designed for lead free we have been very impresse
Electronics Forum | Thu Sep 26 20:43:51 EDT 2002 | davef
"OK. If the connection doesn't look like I expect it to look, how do I know that the metallurgy is correct?" Comments are: * There are no pictures that will get you though this. * You should expect that gold that is dissolved in Pb/Sn solder to make
Electronics Forum | Sat Jun 24 07:34:03 EDT 2017 | tch
We bought a new lead free wave from Electrovert about a year ago and opted to not have the nitrogen options installed on this machine. We could not justify the cost of the nitrogen used versus the benefits that we would see. One downfall is that you
Electronics Forum | Tue Jan 30 18:25:25 EST 2018 | aqueous
This is one of the most common questions I get asked. Why clean no-clean flux. It was stated earlier that no-clean residues are benign. This may or may not be accurate. It depends on several factors including the reflow process. In a perfect world, t
Electronics Forum | Wed Dec 20 20:34:09 EST 2006 | davef
We're not real clear on the issue. [Got ourselves wrapped around lead (Pb) versus lead (termination), we think.] That aside, comments are: * Boiling point of lead [Pb] is [/K]: 2022 [or 1749 �C (3180 �F)] * It's possible that the material that com
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