Electronics Forum | Thu May 29 14:21:22 EDT 2003 | swagner
Thanks for the clarification, I have worked with both application, especially pre reflow. The data you should consider collecting pre reflow is missing, skew degrees, x,y shift, bill boarding, polarity and match the failure data (ref. desg.) to feed
Electronics Forum | Thu Jun 05 16:44:19 EDT 2003 | blnorman
The data we have is from an IBM report. Below 100�C the SAC reliability is almost double that of SnPb (-40 to 100�C thermal cycle). When the upper end temp is increased to 125�C the reliability drops to 75% of SnPb. I'd like to see the data that s
Electronics Forum | Fri Jun 06 18:44:26 EDT 2003 | davef
No, no. It's koscher to have thermal planes. You just need to: * Work with your fabricator to keep the layup balanced. * Relieve the plane so that it doesn't cause assembly problems. While probably not directly for your part, it gives a starting p
Electronics Forum | Wed Jun 04 06:37:10 EDT 2003 | cdowny
I am looking into pick and place for medium to medium-high production with semi frequent changeovers. I have been looking for a little while and nosed around at APEX also. I am not interested in any used products, I have been down that road before
Electronics Forum | Sun Jun 08 19:30:25 EDT 2003 | MA/NY DDave
Hi Gee I got computer crashed at my last try. I am glad to see my note got through pointing you to the other contributors. One thought about that profile they give is that they JEITA or Jedec or ??? with a J is striving to balance what they know
Electronics Forum | Fri May 07 12:39:01 EDT 2004 | rontdc
Bruce, Using a foam fluxer with no-clean flux is a very touchy situation. It is imperative that the specific gravity of any flux be maintained within the manufacturers recommendations. If it is not, you will get icicles and bridging. Maintaining the
Electronics Forum | Wed May 12 11:17:34 EDT 2004 | gregoryyork
Hi Solderdoctor! Days been great especially as it's nearly over. Don't see many of those machines over here anymore due to healthy competition from local supplier. Only been in industry myself nineteen years so spring chicken I suppose. Mind you sold
Electronics Forum | Wed Jun 11 08:23:50 EDT 2003 | rmurtuza
I am running A Universal Chip shooter 4792 HSP machine. I would like to know the optimum speeds this machines can be run at. I am currently running the machine at a tact time of 18S-14S depending on the types of components and the complexity of the b
Electronics Forum | Thu Jun 12 08:45:40 EDT 2003 | stefwitt
Nobody seemed to notice, when Genrad started to collect license fee on used machines. These were different times and customers could effort the extra $ 15,000 software license fee. I totally agree with Jason that in these days, we turn the dime twic
Electronics Forum | Mon Jun 16 08:52:42 EDT 2003 | stefwitt
I don�t see how we could make any impact on the OEM�s to review their decision on the registration fees. Companies, who used to make things happen, are the big ones and they don�t care and don�t buy used machines. You could: Ask the broker/ dealer
