Electronics Forum | Mon Aug 29 17:59:24 EDT 2011 | garryc
My first printer was a Speed Print machine back in 2001. We still have it as a backup. I needed a printer quickly so I bought an EKRA from a show. We were very disappointed with that machine. The service was terrible. Parts were impossible to get. I
Electronics Forum | Fri Aug 26 10:37:24 EDT 2011 | ndion
I'm looking for some guidance here and would appreciate input from some seasoned professionals. I am the Op. Mgr. for a medium sized electronics contract manufacture, but my background is almost exclusively in the machine tool industry and I would li
Electronics Forum | Mon Aug 29 08:29:05 EDT 2011 | rgduval
We program off-line, and still step through the first board...mostly to verify polarities. As has been mentioned above, the choices are check them before they build, or fix them after the build...which will include the ME time at the machine, plus t
Electronics Forum | Tue Sep 06 12:39:06 EDT 2011 | deanm
According to IPC-7351A, the optimum fiducial is a solid circle with a minimum of 1mm diameter, but can be up to 3mm. There should be a solder mask clearance a minimum of 2x the radius of the copper circle. So the minimum fiducial size is 0.040" with
Electronics Forum | Thu Sep 08 12:50:39 EDT 2011 | deanm
We use both the black conductive and blue static dissipative ESD totes in the production of Class 3 military electronic assemblies. In some cases we use ESD bags, but most board assemblies are placed directly in an ESD tote with a lid. The totes cont
Electronics Forum | Thu Sep 15 19:12:27 EDT 2011 | smtmaxmary
WELCOME TO SMTmax Established in 2009, the Omxie Corp. is headquartered in California, with several offices worldwide. Our primary focus is in the development, manufacturing and marketing of SMT tools and equipment for prototyping and production. Ou
Electronics Forum | Thu Sep 15 21:25:43 EDT 2011 | darby
G'day folks - haven't been around for some time but still soldering on. Question for y'all. One of my design engineers has shown me a Creative PCI audio card with a TQFP48 attached. 0.4mm pitch. Let's say the pin width is 0.2mm and the pad design ha
Electronics Forum | Thu Sep 15 21:36:52 EDT 2011 | darby
I also posted this in the design section... G'day folks - haven't been around for some time but still soldering on. Question for y'all. One of my design engineers has shown me a Creative PCI audio card with a TQFP48 attached. 0.4mm pitch. Let's say
Electronics Forum | Mon Sep 19 19:22:11 EDT 2011 | henrytcx89
Thanks for taking ur time to answer this. =) The pick and place machine is just pick from wafer(on tape) and place into waffle pack. I read from some of the sources saying that the ejecting needle and the vacuum pick up bits could cause the die to c
Electronics Forum | Thu Sep 22 14:54:01 EDT 2011 | hegemon
You might find a lot of experience in the forum here, but maybe not so many consultants for this niche. BGA underfill is not rocket science, and in my opinion, the key items are the material chracteristics, and the dispensing method and pattern. Fo
