Electronics Forum | Tue Jun 01 11:51:48 EDT 1999 | Dave F
| We have experienced problems with chlorine damaging certain components, is there anyone with similar problems and possible solutions ? preferably info about a source for chlorine free solder paste | | Thanks | | James | James: There is no chlor
Electronics Forum | Tue Dec 29 04:11:59 EST 1998 | Richard Sin
I have an inbteresting problem on my N2 wave soldering lines. We have two N2 wave soldering line. Line A is old one and Line B is new. We found solder balling Phenomenon on PCB After soldering in the new N2 Atmosphere Wave Soldering Machine. In the c
Electronics Forum | Fri Sep 25 11:07:45 EDT 1998 | Chris Fontaine
We use dry boxes manufactured by DMS Clean Room Products in Lawrence, MA. The phone number on the tag is (508)683-2325, but I think their area code changed to either 978 or 781 recently. We flow dry nitrogen through the box in order to ensure that
Electronics Forum | Mon Jun 22 13:56:17 EDT 1998 | Upinder Singh
hi all. I am looking for a oven which can cure the conformal coating providing heat and the humid atmosphere. I am looking for a temperature range of 60 deg C to 80 deg C and a humidity range of around 80%. Can anybody refer to me the right vendors
Electronics Forum | Thu Apr 16 08:07:05 EDT 1998 | Stan
Currently I am in the buisness of soldering bare die to the top surface of a copper heat sink. Is any one else have some exprience in this process that can help. We heat a copper slug through a contolled atmosphere, place a preform then a bare die.
Electronics Forum | Wed Mar 11 00:09:13 EST 1998 | Fabian Morales
I haven't worked with Protecto but I have seen very good results using a no-clean flux and a nitrogen atmosphere in the reflow oven. | Entek or Protecto? | I've hear Kester's Protecto is a very good OSP that may be more assembly process-friendly th
Electronics Forum | Sun Sep 09 10:53:05 EDT 2001 | bentzen
For reflow soldering, you are correct ! The higher surface tension of the solder paste in nitrogen atmosphere can increase the number of solder bridges if the component or solder paste print is inaccurate. Another defect that might increase is tomb
Electronics Forum | Wed Jul 03 22:35:02 EDT 2002 | Stephen
If you can solder in an inert atmosphere you'll find the problem will disappear, even blowing N2 over the surface while soldering will solve the problem. 10�C over peak is not excessive, I've run up to 350�C in some cases, protected by N2 the flux wi
Electronics Forum | Tue Jun 25 07:12:46 EDT 2002 | Daan Terstegge
Because BGA's are so hard to rework, you'll want the maximum process window for your reflow equipment, and this includes an inert atmosphere. But as long as solderability and temperature profile are well controlled you can have perfect results with a
Electronics Forum | Mon Aug 12 19:35:42 EDT 2002 | sleech
Been there, ... done that,...got the T-shirt. When with a major IC manufacturer, we tried this. IT DIDN'T WORK! The problem was that most convection ovens leak. We could not achieve a significant N2 atmosphere.Eventually went to vacuum-assisted bak
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