Electronics Forum | Wed Nov 13 16:48:19 EST 2013 | spoiltforchoice
I would expect any half decent machine to place 0603 parts slap bang on target to the typical defined accuracy for such parts on most machines of perhaps ~60 microns or better. Self correction during reflow is IMHO much less pronounced with lead-free
Electronics Forum | Fri Jun 09 09:52:03 EDT 2023 | tommy_magyar
I agree with Mainteneer on this. Depending on the active components, I would check the datasheets of them. Particular groups of components to pay attention to: microphones, microprocessors, transformers, relays, switches. Washing may be in some cases
Electronics Forum | Tue Apr 11 10:36:35 EDT 2000 | Russ
Quick question for Dave, Out of curiosity, why concave? I ask because we are soldering RNETs that come in either style and have not payed much attention to this. Russ
Electronics Forum | Wed Jan 05 11:53:28 EST 2000 | Dave F
Josue: Many variables, which you control affect paste height, but paste height is not (or correctly shouldn't be) the issue. Paste volume is where you should focus your attention. Check the archives Good luck. Dave F
Electronics Forum | Tue Nov 16 18:10:15 EST 1999 | Richard
Michael, IMP Printed Circuits in Adelaide ( Australia) have an old XY table / Digitiser head system that just needs a Maher controller to get it up and running. Their email is imppcb@codan.com.au attention Bob Armstrong. Regards Richard
Electronics Forum | Tue Jul 06 11:26:38 EDT 1999 | Carol Zhang
We are looking for some subcontractors to do surface mount technology boards for us. Is there anything I should pay specific attention when I visit the subcontractor's site? Thank you for any advice
Electronics Forum | Wed Jun 09 11:38:20 EDT 1999 | Roseann
In past PCB designs I have cleared all traces from all layers (except pwr/gnd) from fiducial area. It has come to my attention that this is only necessary on the side where fud is placed. Which is the correct method of design using a fidicial?
Electronics Forum | Tue Dec 01 10:28:05 EST 1998 | Dave F
| I am locking for inspection machines. Can someone indicates some manufacturer of this kind of machines? | | Thanks for help. | Sergio: Please help focus our attention. What type of machine? Comparitors, automated optical inspection, microscop
Electronics Forum | Tue May 05 19:32:21 EDT 1998 | Wayne Bracy
Cnuli Jia: Thanks for the nicely spoken message. We will check the new mart out shortly. Most of us enjoy reading the technical writings and will input advise or suggestions from time to time. Thanks Wayne
Electronics Forum | Sun Dec 16 04:55:33 EST 2001 | Ramanandkini
Mr.Dave.F has given an exhaustive answer. I just want to mention that some attention could be paid to the plating & contaminants on the PCB. We have experienced longer soldering time due to the presence of contaminants on the plated surface.
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