Electronics Forum | Mon Feb 12 13:15:14 EST 2007 | realchunks
Does this meet the SMQ230 recommended time above liquidous? Do you have any parts that cannot withstand 239 degress C? If meet SMQ230's recommended time and temps and your parts are rated for this temp, then you should be OK. The real proof is ref
Electronics Forum | Mon Feb 12 13:58:10 EST 2007 | campos
Tks for the answers,, My concern is about the intermetalic layer,,I run SMQ230 LEAD FREE paste.. its liquidous at 217C..the oven have 7 zone, but I run in 5 zones also with a more agressive profile (due to the line rate)..I would like to know if runn
Electronics Forum | Mon Mar 12 13:57:50 EDT 2007 | davef
That your problem is not related to component solderability or wave process related makes us believe this has to do with bare board design. Look at how your designer did the thermal relief on the two pins that don't solder well. If you can't get a
Electronics Forum | Thu Apr 12 13:23:18 EDT 2007 | slthomas
On the contrary, IPC-610 refers to flat ribbon leads in the same context as gullwing and "L" leads. I've always assumed that they were one in the same (could be wrong here...certainly wouldn't be anything new) and have never seen L or flat ribbon r
Electronics Forum | Mon Jul 16 12:13:51 EDT 2007 | fredericksr
Interesting, thanks for the info. All that I know right now is that running the jaws through an "el-cheapo" demagnetizer was one of the actions taken that resulted in a reduction of missing components. It is possible that this is not a dominant fac
Electronics Forum | Fri Jul 27 12:13:57 EDT 2007 | jdumont
We have issues with these also. They need to be flat to solder well. Reduce the square under the part for the heat sink and youll improve yields. That pad keeps the part lifted high while the other smaller joints reflow and partially attach. You can
Electronics Forum | Wed Sep 12 13:11:50 EDT 2007 | nitro
Usually the bearings lock up. I keep one spare blower on hand and change it out when I have one go bad, then take the bad one apart and change the bearings. The bearings are about $4.00 per set and are pretty common. Not too hard to find. I am using
Electronics Forum | Thu Dec 13 19:19:44 EST 2007 | bga_kid
First of all you need to profile your board.....no one is going to be able to tell you what setting to run without know the product and components. You are also going to want to check the paste spec. against you temp. ramp/rise rates. Just guessing y
Electronics Forum | Thu Dec 13 10:30:42 EST 2007 | slthomas
I would never have guessed that McM-Carr would carry that stuff (antistatic belts) but you learn something new every day....thanks! Question, though. Their online catalog says to order by the inch of circumference (OC, or outer circle), implying tha
Electronics Forum | Thu Dec 13 10:11:35 EST 2007 | kpm135
Management at my shop is interested in the Fuji CP6-4000. I have no experience with the Fuji machines and was hoping anyone familiar with this machine would share thier thoughts. I was most curious about what people thought about the ease of programi
