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
Electronics Forum | Mon Aug 30 23:27:16 EDT 2004 | KEN
I worked for a US leading edge technology company to develop smt and wave solder processes to be transfered to their Tiawan CM. Its not 400K units per year, but800K per month! And yes, your right, no one wants to give away the magic lead free proce
Electronics Forum | Thu Sep 02 16:47:08 EDT 2004 | Irun
Hi all I have a question about DI water for cleaning system. What water quality should ionic exchanger produce for assembly cleaning (SMD and THT components with BGA and microwave application). What is recommend water conduction and minimal level (0.
Electronics Forum | Thu Sep 02 22:07:28 EDT 2004 | davef
It depends. We've known cases where 10 mohm-cm was insufficient and others where 0.1 mohm-cm was more than sufficient. No standard exists. Our final rinse is fed from a recycling unit that produces DI water. We use 0.5 mohm-cm resistivity as the lo
Electronics Forum | Wed Sep 08 20:48:28 EDT 2004 | Darby
Yes I agree with Russ about someone asking up front and everything else. Two tips. 1. Keep the marks at least 5mm in from the conveyor edges of the pcb so that clamping systems do not hide the mark. 2. Make sure the marks are eccentric around the pcb
Electronics Forum | Wed Sep 08 11:03:02 EDT 2004 | dj_jago
Peter, The Siemens placement equipment has a simple coding structure: HS50 - 50,000 CPH S20 - 20,000 CPH S23 - 23,000 CPH S27 - 27,000 CPH Well... you get the idea. I have no idea about the speed of the 'F' machines. We get around 70-80% of this
