Electronics Forum | Tue Jan 23 09:47:02 EST 2018 | dleeper
I've used VJ Electronics Summit series of rework machine. I liked the programing interface. You can used canned scripts for basic removal/replacement processes or you edit/write your own if you want a customized work flow. The machines are very ope
Electronics Forum | Fri Apr 23 12:10:41 EDT 1999 | Dave F
| A customer told me that pad geometry was to be different depending on soldering process. | | I think this is untrue. What is stated in the IPC - SM -782 standards is that parts should be placed to elimanate a trailing edge. This however should
Electronics Forum | Thu Oct 23 08:13:44 EDT 2003 | davef
The SEMA listing [ http://www.smema.org/smema5.pdf ] says: * D CUT SQUEEGEE: A single diamond edge squeegee which is shaped like an upside down house and made of polyurethane. * FOUR-SIDED DIAMOND EDGE SQUEEGEE: A polyurethane 3/8 x 3/8 four sided, f
Electronics Forum | Tue Mar 15 22:04:56 EST 2005 | KEN
The hasl joint looks fuller (and is easier to inspect)because it has more solder volume. Think about it. Your pre-plating your board with solder (before you add more solder). I doubt your getting 0.3 mils of hasl.....probably more like 1.3 to 3.0
Electronics Forum | Fri Dec 28 11:33:36 EST 2007 | realchunks
It really depends on several things. Is solder paste inspection driven from the customer? Do you have a lot of time and bodies to do solder paste inspection? Does it add value to your process? If you answered �Yes� to any of the above, then you a
Electronics Forum | Fri Apr 17 21:34:02 EDT 1998 | D.Lange
| Hello Ya'll, | I've got what may be a silly question, but why does it seem so important to everybody that you have x-ray capability if you're thinking about doing BGA? | I know what most people will tell me; "Steve, that's a pretty silly qu
Electronics Forum | Wed May 09 10:40:10 EDT 2001 | davef
First, your primary side component pads should be designed according to SM-782A, "Surface Mount design & Land Pattern Standard". Next if you did that and your secondary side component pads are the same size as your primary side components, your diff
