Electronics Forum | Mon Aug 16 16:57:06 EDT 2004 | Shean Dalton
Try to observe the board as it exits the wave, look for solder snapping as the leads finally exit the solder. The surface tension could be such that a "string" of solder stretches away from the wave until it finally breaks. Then, as the string reco
Electronics Forum | Wed Aug 11 18:36:03 EDT 2004 | davef
90 Knoop. Q2: Thickness is 4 to 10 u" for Au and 300 to 400 u" for nickel A2: This looks like a ENIG spec. Although, the Ni is quite heavy, 150 uin is sufficient for most applications. [IPC-4552 ENIG specification: * Gold thickness of 0.075 - 0.125
Electronics Forum | Mon Aug 16 13:18:46 EDT 2004 | davef
You bet our reponse changes. Q2R: Hard gold thickness is 4 to 10 u" for Au and 300 to 400 u" for nickel A2R: This is a hard gold spec?? It looks like a ENIG spec. Although, the Ni is quite heavy, 150 uin is sufficient for most applications. The gol
Electronics Forum | Fri Aug 13 18:38:47 EDT 2004 | russ
Your paste manufacturer will have the best guidelines for you. Different paste types and manufacturers sometimes/usually require a little bit different setup. I would also contact your printer manufacturer. As far as stencil concerns the larger/be
Electronics Forum | Mon Aug 16 20:22:54 EDT 2004 | Grant
Hi, Thanks for the info! In the software can you add solder paste specs and heat sensitive components and see where the profile sits against these fast? Measurement is the easiest part I think, but what I thinks harder is good software to analyze th
Electronics Forum | Wed Aug 18 06:20:42 EDT 2004 | Bernard Mulcahy
Thanks for the Feedback -- Yes the hard-disks is taking a dump -- This will be the fourth new hard drive since I did the upgrade from Tpsys 1.6 to Tpsys 2.2 Mydata can't really come up with a reason --I can't believe that I am just being 'unlucky' g
Electronics Forum | Tue Aug 24 05:02:55 EDT 2004 | dj_jago
Hiram, We have just had the same decision to make! I was at Vitronics Soltec, Holland about 4 weeks ago doing trials for Lead Free. The Soltec Delta machine was ultimatly chosen over price verses performance. Both machines are very capable but
Electronics Forum | Thu Sep 02 10:41:41 EDT 2004 | dj_jago
Other way around Dave. We decided that the Delta had more in common with the Electra rather than the Vectra, the Electra being much more expensive. For example, we wanted 3 preheat zones for lead free and this would mean an exernal fluxer unit if
Electronics Forum | Thu Aug 19 15:49:05 EDT 2004 | pjc
Hi Erhard, Go to http://www.globalstencil.com They are the stencil firm that worked with MPM for developing technology for printing with thick stencils that are milled out on the bottom to account for existing components on the top side of a PC boa
Electronics Forum | Fri Aug 27 13:07:44 EDT 2004 | C Lampron
Hello, I believe that the area's of concern are primarily component related. Some component are rated for a temp (usually 260 degrees max) for some length of time. Tant Caps come to mind as being heat sensitive. The other concern would be the inerme
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