Electronics Forum | Fri Dec 18 09:27:51 EST 2009 | sforman1
Tom: Once again - why are you using solvent based conformal coating. 1B31 is OK as a CC but it contains Toluene and MEK!! It is only 35% solids which means you are trying to get rid of 65% solvent. If you must use it due to customers requirement then
Electronics Forum | Tue Jan 25 13:06:47 EST 2000 | Bill Schreiber
When switching from cleaning RMA to a no-clean flux, one area that is commonly overlooked is the stencil cleaning operation. Stencil cleaners that are effective in cleaning RMA often fail when cleaning no-clean (especially alcohol cleaners). Pallet
Electronics Forum | Thu Sep 02 15:50:30 EDT 1999 | R Scheller
Has anyone done or seen any studies done documenting what may be the affect of hardware such as screws in the parimeter vicinity of BGAs on a circuit board? What I'm really after is anything describing how close a screw/washer/nut combination which
Electronics Forum | Thu May 09 11:59:34 EDT 2002 | russ
One thing I have done in the past although it may not be feasable in your case, is to process through normal reflow and then saturate parts with a high solids water soluble flux and re-reflow with hot air, iron, or even another pass through the oven.
Electronics Forum | Thu May 09 12:00:32 EDT 2002 | russ
One thing I have done in the past although it may not be feasable in your case, is to process through normal reflow and then saturate parts with a high solids water soluble flux and re-reflow with hot air, iron, or even another pass through the oven.
Electronics Forum | Tue May 09 02:18:45 EDT 2006 | Helmi
Hi, My company is using HEPA filter to improve air quality coming out of oven/wave solder. But the cost of such filter is quite high and we need to improve the consumption. Any suggestion from fellow experts out there? a. Anybody did a cost reduc
Electronics Forum | Tue Jun 27 01:41:42 EDT 2006 | grantp
Hi, How come so many good threads get off track because of this Guru fool. To get back on track, we have been running SN100C in our pot for a few weeks now, and it's incredible, and working really well. Glad I listened to the advise of people on th
Electronics Forum | Wed Oct 15 07:31:29 EDT 2008 | davef
Similar to Jax's comment, concern yourself with the the activity level of the flux. A more active flux would be more aggressive in removing tarnish. Certainly, the choice depends on the type and amount of tarnish. Probably, you need to consider your
Electronics Forum | Fri Jan 09 09:43:48 EST 2009 | boardhouse
Hi Simon, The main reason that it would probably be removed would be do to lack of clearance for a soldermask dam from pad to pad. typically if the clearance from pad to pad is under .008 the solder mask dam would be removed. Min recomended dam siz
Electronics Forum | Thu Jan 08 17:36:02 EST 2015 | jeff701
The machine supports indexing, so it'll do one part of the board, advance it to a stop, read fiducials in the second stage of the board, and then paste that section. The MY500/600 reportedly do not support this feature, though there are usually ways
