Electronics Forum | Thu Mar 19 12:26:10 EDT 2020 | yuaanliie
You have mostly set in your mind before purchasing PCB i.e. PCB is an acronym for the printed circuit board. Last month I purchased PCB from Great PCB.
Electronics Forum | Wed Mar 11 04:05:02 EDT 2020 | floravictor
Due to the impact of the epidemic, will everyone's purchases be affected? We are pcb factory in Shenzhen, we are already back to work. skype: qjthomasxiao
Electronics Forum | Wed Apr 23 07:27:21 EDT 2008 | realchunks
Floor life of a PCB is rated in years. Are you asking about the solder paste or something else?
Electronics Forum | Wed Apr 23 03:19:30 EDT 2008 | jkhiew
Hi all, Can anyone advise me what is the recommended floor life for pcb assembly prior to wave soldering before drying/degassing ? Thks Joseph
Electronics Forum | Fri Apr 25 04:44:56 EDT 2008 | jkhiew
Hi all, I mean after post adhesive oven curing (SMD at bottom side) prior to manual insert of PTH components (top side), what is the recommended storage time prior to wave soldering in order to avoid pin/blow holes and sunken joints issues (pcb asse
Electronics Forum | Wed Apr 23 17:28:46 EDT 2008 | davef
The need to prebake boards to remove moisture from the board [to prevent voiding] prior to wave soldering is driven by the thickness of through hole plating. * 1 thou [25um] or greater requires no prebaking * LT 1 thou [25um] requires prebaking
Electronics Forum | Wed Apr 23 19:00:39 EDT 2008 | stevek
It depends on the laminate but a PWB is like any other MSL component. Some fab shops are only waranting standard FR4 laminates for 45-60 days when processed at lead free temperatures. The best thing I can say is to try some weight gain/loss experim
Electronics Forum | Mon May 24 14:44:21 EDT 2004 | ekcinieh
My snmall company out-sources all of it's SMT assemblies. We do through work and have dome rework experience with SMT. All of our assemblies are built to "IPC610 Class II". We currently have no one trained to inspect to this standard. What is a pract
Electronics Forum | Wed Nov 06 19:59:39 EST 2002 | davef
Consider checking with your CC materials supplier for suggestions. It's to their benefit to help you do a good job using their product. Regardless of your current requirements, consider basing your workmanship on NASA-STD-8739.1 Workmanship Standar
Electronics Forum | Tue May 05 08:18:28 EDT 1998 | Jon Medernach
Good luck, I would advise you to contact the National Training Center for Microelectronics in Bethlehem, PA. They have actual courses in all aspects of SMT assembly and they are reasonable. As far as equipment for startup, I would look for used if
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