Electronics Forum | Tue Feb 08 03:14:37 EST 2000 | Roni H.
Hi Jose, J-lead are very sesitive to coplanarity, which is the major cause for the defect you described. Other posibility is that there is not enough solder paste ; J-lead need around 10% more solder past then L-lead, You have to consider the screen
Electronics Forum | Tue Sep 30 21:00:41 EDT 2003 | davef
We're not clear on what you seek. So, as a starting point for our discussion, we wouldn't get agitated if we saw "routine" coplanarity of 4 thou. For instance: Maximum Lead Coplanarity [Altera] Package||Acronym||Lead material||Finish||Maximum Lead
Electronics Forum | Wed Jan 16 15:22:29 EST 2002 | Terry Burnette
In his book titled "Manufacturing Techniques for Surface Mount Assemblies" author R.J. Klein Wassink describes the relationship between solder land dimensions, component lead coplanarity, board warpage, solder volumes, and solder paste flux wetting b
Electronics Forum | Mon May 07 09:47:45 EDT 2001 | orbotech
An ultimate truth in AOI is that "you can not avoid what you can not see". At the post solder stage, 2D inspection is typically not enough as it simply "can not see" everything using a single perspective, and therefore, can not detect all of the faul
Electronics Forum | Fri Feb 19 09:14:52 EST 1999 | Justin Medernach
| During inspection and test we find leads which do not get soldered. Some are because of insufficient paste, but with others everything looks right. This will only happen on 1 to 2 pins, and it is not isolated to a specific type of ic or location o
Electronics Forum | Tue Jul 14 07:37:31 EDT 2009 | tony_d
Hello Reese, We currently own two MIRTEC MV-3 desktop machines and one MV-7 inline machine (so you can tell right away that I am a little biased.) We had an opportunity to evaluate both the YESTech and MIRTEC machines on our production floor. The
