Electronics Forum | Wed Jul 08 17:31:31 EDT 1998 | Dave F
smd: I think the idiom is "schmuck," rather than "putz." ;-) What are you concerned about? That the residual water in the 80 pin connector housing will flow down the boards and rot-out the bottom of your new boxes? Dave F | I am about to place a
Electronics Forum | Sat Jun 13 11:00:21 EDT 1998 | Earl Moon
| We are very concerned about outgassing in wavesoldering. | If anyone knows how to use properly well pcb's before soldering in order to avoid this problem please let me know. I have this problem in FR4 large double sided pcb's. My soldering line is
Electronics Forum | Fri Jun 12 14:22:53 EDT 1998 | Ryan Jennens
| Hey all! | The wave solder warrior is back. I have found a flux which leave almost no residue (the least yet), but because of its super low solids content I absolutely cannot get topside fillets. The multi-layer, two sided board is on a pall
Electronics Forum | Wed Jun 10 21:58:20 EDT 1998 | Dave F
We use them, but we never thought about them. WHAT ARE THEY? The hand lotion we provide for our operators. BACKGROUND: Operators hands take a beating. They 1 Work in a humidity controlled 35 to 50%RH environment that is drying 2 Wash before and
Electronics Forum | Tue May 26 20:24:39 EDT 1998 | Dave F
| Does anybody know a (if possible low-cost) system | which can travel with the PWBs through a reflov oven | (like some temperature profile loggers) for measuring | the residual oxygen? My problem is, it is a batch oven | which does not allow to h
Electronics Forum | Tue Apr 07 18:05:40 EDT 1998 | Roxanne Picou
| Looking for Cleaning solvent to claen missprinted PCB, that will be good for paste (CS) and glue (PS). | One that is easy to evaporate with out leaving | white powder around component leads on CS (when cleaning PS) Solder paste cleaning can be acc
Electronics Forum | Fri Mar 06 22:52:16 EST 1998 | Scott McKee
| I will be starting a conformal coating process soon, I am looking for any pointers on | 1) Best method for masking components, tape mask, liqued mask Masking tape or rubber caps will work, the ligued mask is too hard to remove. | 2) Which is best
Electronics Forum | Wed Jan 14 18:47:55 EST 1998 | Graham Naisbitt
Jerry This is the classic "White powder phenomenon" a little like the X files - loads of information but who do you trust? I know that GEC Hirst Research in the UK, identified over 16 different white powder residues so it is not an easy subject. Plea
Electronics Forum | Tue Aug 21 03:42:55 EDT 2001 | mugen
SMT community, My Fellows, 1) why is No-clean (NC) the preferred process, for BGA mounting by SMT? 2) why is water-soluble (WS) not a hot choice? 3) All I know, *is in layman terms*, that BGA has tendency to trap water, should WS process be the c
Electronics Forum | Tue Nov 27 15:37:15 EST 2001 | Dave G
I've seen some glass melf's fall off in our facility due to the glue not adhering to the body very well. You could pick these off with your finger after they had cured. (With little or no effort - I never bothered to actually measure the force requir