Electronics Forum | Wed Jan 05 15:54:51 EST 2005 | Frank R.
Hi, Now in my wave the PCB TOP Side temperature before WAVE is 110 - 115 DegC and the Peak temp in the wave is 240 - 245. These informations are for an 63/37 Alloy. What is the PCB TOP Side temperature and the peak temperature for Lead Free Wave Sn
Electronics Forum | Wed Aug 29 02:21:42 EDT 2007 | jgrootkoerkamp
It is a lead free process with sac305. We use goldfinish FR4 boards. Preheat is between 110 and 115 degrees. I am sure it is a moisture problem because longer stored boards have more blowholes. What is the maxium period to store the boards without
Electronics Forum | Fri Dec 08 21:26:44 EST 2006 | billwestiet
You already have some good answers. A chemical isolation zone for RMA is a good idea. If you are looking for new see the two references you have and Austin America. If you are looking for used, see us at http://www.ietechnology.net. We presently
Electronics Forum | Thu Feb 12 22:12:41 EST 2004 | Dean
I used to work for a multi-billion, multi-national Contract Manufacturer. I quoted manufacturing (RFQ) for my US site. My counter parts in Beijing were comparison quoting for 1/10 to 1/15 below my quotes. I can't tell you how many builds we did on
Electronics Forum | Thu Oct 04 00:03:28 EDT 2018 | gaintstar
flason smt pick and place machine: http://www.flason-smt.com/product/Hanwha-IC-placer-SM321-High-Speed-SMT-Modular-Chip-Mounter.html http://www.flason-smt.com/product/Hanwha-Pick-and-Place-Machine-DECAN-F2-High-Speed-SMT-Modular-Chip-Mounter.html htt
Electronics Forum | Tue Feb 04 22:28:16 EST 2003 | davef
You could reduce the paste by about 70%. Solder balling and tombstoning will be the issues to fight. The drivers to these don't change with the component size. Use the fine SMTnet Archives for background. Aperture Size and Thickness of Solder Pas
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