Electronics Forum | Tue Mar 01 10:27:24 EST 2005 | Rob
Hi Alex, I've seen 2 types of feeder test rigs for sale that cover CP6 feeders, one from Alternative - http://www.alternativesmt.co.uk and one called a GAM20 - I think it was ABtech Europe - http://www.abtech-europe.com. The GAM20 was about half th
Electronics Forum | Thu Feb 24 13:52:16 EST 2005 | deyo
I have a quad vmp20b benchtop printer that keeps blowing out the table up\down control FETS. Anybody have any idea what component is before or after these fets that could be causing this? I metered all the surrounding components nothing was out of t
Electronics Forum | Fri Feb 25 10:46:50 EST 2005 | John S
We are developing a new product, and some of the designers are proposing QFN packages. These look like leadless QFP's. We don't currently use anything like this, but we operate in a high reliability automotive market. Can anyone provide advice/com
Electronics Forum | Wed Mar 02 05:01:41 EST 2005 | ABHI
Are your packages mounted on boar using sockets or BGA balls? LGA's are usually no issue and are simple compared to BGA. No issue on missing balls or ball drop issues. However, LGA's need quite a bit of mounting / holding pressures during test and mo
Electronics Forum | Fri Feb 25 11:37:17 EST 2005 | OverTheHill
I believe I read somewhere, that using leadfree solder in the wave, the dross will actually collect in the bottom of the solderpot. I can't remember where I read this (maybe a nightmarrish dream I had one night). If so, how do you remove it from the
Electronics Forum | Fri Feb 25 18:13:17 EST 2005 | davef
Your leadfree dross should float, similar to your leaded dross. It's possible you're thinking about the process for removing excess copper from the solder pot. Following the same process, with: * Leaded solder, the copper floats. So, you scoop the
Electronics Forum | Thu Mar 10 12:11:30 EST 2005 | Rob
Hi P-Y, Nitrogen = 15 euros per hour. Solder replenishement = 1kg per hour at 11.5 euros per hour. Obviously there is also the labour involved in scraping off the dross. Cheers, Rob. NB. For all our US friends a Euro is a strange Belgian inventi
Electronics Forum | Thu Mar 10 19:28:22 EST 2005 | KEN
Euro's....Euro's....ah yes here it is. RoHS, Article 4....shall not contain: Hex Chromium, lead, mercury and Euro's. I heard our sales guys telling a customer tour the other day that we were No Clean, VOC free, lead free and Euro free compliant!
Electronics Forum | Fri Feb 25 15:08:30 EST 2005 | jdengler
John, We tape (usually high temp tape) flex to a fixture (usually 0.090" piece of bare FR4). We make an outline on the fixture to get a rough location then use fiducials on the flex for alignment. Print, place, reflow, cool, remove flex. When the
Electronics Forum | Thu Mar 03 05:58:34 EST 2005 | vinitverma
Hi, At what stage do you get this error? Can you send me your cad data so that we can simulate the same at our end and probably inform you the solution. Also what is the configuraiton of the machine? How many cameras do you have for component alignm
