Electronics Forum | Wed Jul 23 12:01:28 EDT 2008 | Jdd
Can anybody know the acceptable PPM (part per million) on AOI machines on Low volume-high mix also on High volume-Low mix. We are a Low volume-high mix company, we have Agilent SJ50 Series 3 machines Can anybody have the idea how many PPM are good
Electronics Forum | Thu Oct 07 06:16:18 EDT 1999 | Ken Fong
Hi, We are using mixed technology in our PCBA. Would like to know whether there is any criteria governing/guiding the use of mixed technology in such aspects as: 1. Some SMDs cannot be used in some kind of PCB materials such as FR1? 2. Some SMDs are
Electronics Forum | Fri Jun 14 14:32:05 EDT 2002 | davef
There is no real reason why you shouldn�t use your current paste. Paste for printing usually is a coarser mesh than paste for dispensing. Dispensing paste is more expensive, because of the mesh and the packaging, but that doesn�t matter now. Compa
Electronics Forum | Mon Nov 01 16:22:47 EDT 2010 | jax
Who Cares... Mix Away! Although you should not mix different Solder Pastes' together in a container or on a stencil (Mostly due to the flux, although solder sphere size and shape could cause an issue), mixing solder brands or chemistries on a board
Electronics Forum | Tue Jun 19 20:42:49 EDT 2001 | davef
So, they want you to talk through a justification for mixing fluxes? That's GREAT, if you can get away with it!!! Tell us more about Safety Clean.
Electronics Forum | Wed Jun 17 19:44:31 EDT 1998 | Eldon Sanders
Rob, I think the change over on the Quad QSP2 is about as easy and fast as it can get without swapping out the feeder bases. In a high mix environment I think it is worth looking at. Regards,
Electronics Forum | Thu Sep 27 08:00:22 EDT 2001 | Steve
We are a high mix, low volume shop. Average lot size would be 50 - 150 boards. My concern is how the machine will handle the high mix environment.......
Electronics Forum | Mon Apr 29 03:01:53 EDT 2002 | Bob Willis
Had a similar problem recently where there were scatered balls and voids in joints and on the surface of the joints. The paste was dispenced from a cartridge with no kneeding or mixing before printing. The result was spitting and voids. Mixed the pa
Electronics Forum | Mon May 20 23:01:16 EDT 2002 | dwoon
Hi guys, What are the major inefficiencies that most EMS companies faced in a high-mix/low-volume manufacturing? And, what in general an equipment manufacturer (especially surface-mounting equipment manufacturer) can help them to improve the product
