Electronics Forum | Tue Oct 14 10:03:17 EDT 2008 | dwelch123
The bread pans are stackable, same size at top but smaller at the bottom. I also do this inside the solder wave. Just press the other bread pan on top of the other. It helps to have some guns on you, some little stick boy might not squeeze enough, bu
Electronics Forum | Mon Nov 17 13:26:05 EST 2008 | evtimov
With the gun you can do removal. Than clean the pads, put some flux, place new BGA(or reballed one) and put it in the reflow oven(if you have one). That's the cheap way you can go without buying an equipment. The other way is to buy machine for BGA
Electronics Forum | Sat Nov 22 09:51:51 EST 2008 | realchunks
You need to take it a few steps farther. The main reason you would want to reject a certain % off print is because it made defects. So you need to see how far you can go without creating a defect and then establish that as your cut off and the need
Electronics Forum | Tue Nov 25 10:00:27 EST 2008 | wavemasterlarry
I use a alcohol rag and compressed air to blow out them via holes. I think washing is over rated. A simple wipe is all you need. Plus it keeps the planet green which is what everyone seems to be squacking about these days. Thats why I wash one a
Electronics Forum | Tue Dec 02 18:10:39 EST 2008 | sys_steven
Need your opinion guys.. The old timers at the plant here feel that we should clean our board after Misprints withe the solvent cleaner over water wash. This is so they don't have to rebake the pcb for 24 hours before smt again. I don't believe th
Electronics Forum | Mon Dec 08 16:47:50 EST 2008 | pwilson1
Hi All, Does anyone know of a method (automated if possible) for removing cured Conformal Coating, silicone based, from plastic?? I m looking into a method of cleaning our internal packaging (mainly plastic boxes etc), which have cured sil
Electronics Forum | Tue Dec 09 14:03:05 EST 2008 | pms
Steve, We use stencils for applying adhesives to PCB's, with our DEK Proflow system. Works well for us. Once in a while, we have to manually add adhesive to a specific location depending on the component height. Vary rare though. You shouldn't have
Electronics Forum | Wed Dec 10 00:15:07 EST 2008 | jeffjarmato
Are there any good solutions for getting good barrel fill on PTH boards using Pb Free solder and No Clean flux. All of our boards are having issues getting minimum required fill per IPC. It does not matter if the board is 062 or thicker, any pin conn
Electronics Forum | Mon Dec 29 07:23:57 EST 2008 | ghenning
Watch out for workmanship specs. I don't believe this is covered under IPC-A-610. You may have to write your own. Alignment of the fixture and coplanarity of the bar and substrate are key. Also, pay close attention to stencil aperture and thicknes
Electronics Forum | Fri Jan 16 12:03:46 EST 2009 | black5629
We are encountering similar problem as yesterdays posting, with solder not sticking to the pads but wicking to the leads on Leaded HAL finish boards, except we have tried two different solder paste lots with similar result. The oven profile and paste
