Electronics Forum | Fri Apr 01 10:27:58 EST 2005 | chunks
Wow, Daja Vu! Besides a 9 iron, there isn�t any official physical test you speak of. You can run a design of experiments to prove your joints are strong, but I wouldn�t suggest pushing, slapping or prying on a customers solder joints. Any such pok
Electronics Forum | Mon Apr 04 09:45:55 EDT 2005 | Homer
IPC may help, otherwise there are many factors: Are the PTH clinched or straight? If straight, what length protrusion? What direction are the parts running thru wave? Is product on a pallet? Not to mention your soldering process: What type of mach
Electronics Forum | Sun Apr 03 10:07:40 EDT 2005 | davef
In 2001, IVF evaluated the reliability of IBM CBGA and CCGA, i.e. packages with "hard" balls and columns, in space applications for the European Space Agency. One clear result was that amount of solder paste printed on the solder lands is very critic
Electronics Forum | Wed Apr 06 00:36:32 EDT 2005 | vinitverma
Hi, Well said Grant! I guess this margin on the component procurement is the largest contributor in the overall margin for big EMS companies who have global component sourcing and hence very competitive pricing for the same! As regards conversion co
Electronics Forum | Mon Apr 18 14:58:36 EDT 2005 | halal
I have checked the links that you and Will gave to me. I have new info about my task: The task is to summarize the mask aligning methods. The first method: The factory already has an UV machine for the exposure, so they search some positions with a
Electronics Forum | Tue Apr 05 11:03:13 EDT 2005 | cyber_wolf
There are several things that can cause these errors. It sounds as if you have 2 problems. A (Z) problem and a theta problem. 1. Check that the Z-locks are functioning properly in the service program. Make sure that when they are un-locked they don'
Electronics Forum | Wed Apr 06 05:08:07 EDT 2005 | blueflag
New morning but still the same agro'. The story so far - Have checked the fuse on the back plane and it had blown again, changed it has been ok. Swapped the mot-z board around with piggyback mi card, no new other/moved problems. When doing base cente
Electronics Forum | Tue Apr 05 09:27:49 EDT 2005 | russ
These sound like european machines, From what I can tell so far Lead Free capable ovens just mean that they have hotter heating elements, and blower fans that can take the additional heat supposedly. It does not appear to have anything to do with t
Electronics Forum | Tue Apr 05 08:41:39 EDT 2005 | aj
Guys, I posted a thread on this sublect a while back and I thought we had it sorted but we have the same issue again. One of the SMT operators has chapped skin,sores which sometimes cause cuts. This looks extremely uncomfortable. We thought it was
Electronics Forum | Wed Apr 06 12:36:53 EDT 2005 | smt_rookie
I've tried a different lot of the same double header connector (yes its double level right angled header conector) twice but nothing has improved. I've also suspected that top row of the connector has greater heat sinking capacity (which should hold
