Electronics Forum | Mon Nov 12 16:10:46 EST 2001 | davef
There is no doubt that we reflowed topside BGA on our wave solder machine. We run our wave pot at 450�F and that�s plenty hot enough to reflow solder on topside SMT components. When the solder balls on the BGA melt, the package is over 200�C, trust
Electronics Forum | Wed Mar 21 13:16:11 EDT 2012 | grahamcooper22
What solder alloy are you using at the moment which is coming to the end of its limits ? Normally in general for safe operation of an alloy we don't like to recommend any operation temp that is higher then two thirds of the solders melt point, but th
Electronics Forum | Thu Jul 15 04:33:56 EDT 2010 | jevans
We've recently purchased a second hand smt line which contains an Ersa Hotflow 9 reflow oven.We were informed that this oven was capable of handling a lead free process.The oven was manufactured in 2000,and it has come to our attention that it can on
Electronics Forum | Tue Nov 13 11:22:50 EST 2001 | fmonette
Dave, Hany, I was actually surprised to hear that topside SMT components can reach such a high temperature during wave soldering. If this is the case then the concern for component damage is very valid. This morning I discussed this issue with Jac
Electronics Forum | Mon Oct 06 11:13:32 EDT 2003 | marmotzj
Dear All, I'm encountering a problem on mounting Intel E7501 and P64H2 FC-BGA chips. After the SMT process, these two BGAs were defected. Both had power-to-ground short circuits on the die package itself, and also the die resin had cracking tracks
Electronics Forum | Tue Jun 08 17:51:37 EDT 2010 | vmorina
Hi Vee, We are planing on doing low-medium volume and prototyping boards with the following packages. TQFP, BGA and other SMT packages. I would like to go with some thing like batch/tabletop oven for now, but I am not excluding conveyor reflow oven
Electronics Forum | Wed Nov 07 17:13:51 EST 2001 | fmonette
Hany, The guidelines for proper handling and storage of moisture sensitive components, like PBGAs are clearly documented in the joint IPC/JEDEC standard J-STD-033 (free download at http://www.jedec.org). In short you need to keep track of exposur
Electronics Forum | Fri Oct 29 04:07:27 EDT 2004 | Nick.W (TWN)
Hi, > > Has anyone had any experience with lead > free Sn-8Zn-3Bi solder paste? Apparently in Japan > it's becoming popular because it's got a melting > point of below +200C. > > Can anyone confirm that, > or does anyone have experience with >
Electronics Forum | Fri Aug 30 02:12:19 EDT 2013 | raqz
Hi! I have been studying the reflow process. And now, I am researching for a recommended reflow oven that can process a small to low-medium production SMT soldering. For the experts in the reflow field, please recommend a reliable reflow oven. Here
Electronics Forum | Fri Jan 21 14:51:08 EST 2000 | Dave F
Mike: I�d hate to see you making design decisions, based solely on the discussion here, but that this would be an impetus to consult IPC-D-279, "Design Guidelines ... " and take a course on designing reliable boards. Werner Engelmaier (Engelmaier
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