Electronics Forum | Fri May 15 21:59:42 EDT 1998 | Earl Moon
| Hi, | There has been a lot of disputes in our company | about changing present HASL to another Finishing | which can provide more flatter pad surface in fine | pitch applications. ( perhaps Ni/Au, OSP ) | The target is to reduce solder defects, t
Electronics Forum | Fri Apr 06 17:06:43 EDT 2012 | joeherz
Hello, We have been tracking our SMT quality levels using DPMO which has been a great way to monitor our process with a huge variation in products we build (we're an low vol/high mix EMS provider). We are now looking at implementing the same scheme
Electronics Forum | Thu Aug 10 10:00:40 EDT 2006 | slthomas
Temp. and humidity levels are dependant upon your chemical (paste and adhesive) specifications. Ballpark I'd say 70�F and 40%-45% RH are good targets, as our paste spec. says optimal ranges are 70-77� and 30-70 RH. As far as air quality, if you bui
Electronics Forum | Tue Aug 23 18:14:06 EDT 2011 | jlawson
vapor degreaseing has two main flavors mono solvent and co-solvent. the later being the best performance Yes can clean PCB and in many ways is best in cycle time and cleaning quality. Is batch machine based usually or automated batch if budgets all
Electronics Forum | Wed Jan 30 15:10:09 EST 2013 | hegemon
Restoration of the fluxing properties? Can't see adding a liquid flux to a solder paste (assumed expired shelf life) in order to "restore" anything. If the volatiles in the original paste are gone, then adding more carriers and volatiles will not pr
Electronics Forum | Wed Jul 22 12:47:23 EDT 1998 | Earl Moon
| I'm trying to put together a set of design guides for use for new designers | in house or to be sent out for contracted layout work. I would like to start with a top ten list of things that will go wrong if rules aren't available. For example testp
Electronics Forum | Wed Jun 06 20:45:54 EDT 2001 | Deon Nungaray
.020" The logic behind this is that from the time of the initial fiducial check, to the time of the critical parts placement which are typically placed last, there may be changes. What I mean by changes is that depending on what type of assembly equi
Electronics Forum | Thu Sep 09 08:56:07 EDT 1999 | Dave F
| I wonder to knock this site with this question? | Are there some body have applied 6 SIGMA TOOL to improve | the smt process or etc. especilly smt process is better. | I want to hear the difficulties to apply this tool. | and experiences. I dont
Electronics Forum | Mon Oct 23 12:58:28 EDT 2006 | grizzy
"Surface Mount Techniques has approximately 98 > percent of the world market share of large Panel > Stencil Printers". > > It sounds a little bit > strange to me, especially since I work for one of > the companys listed in their advertisement an
Electronics Forum | Mon Jun 19 12:42:16 EDT 2023 | daniel_stanphill
The my700 can dispense 1 million dots per hour. It's not an exaggeration either. It literally never stops moving, and is dispensing without contacting the board. It uses the same type of mathematical calculations that a plane dropping a bomb uses in
