Electronics Forum | Wed Mar 11 10:58:58 EST 1998 | Earl Moon
| | What does the term "poor wetting" mean as a defect code ? "Poor" should mean unacceptable when surface (component or PCB solder termination areas) wetting does not provide acceptable solder joints. Unacceptable wetting of PCB solder termination
Electronics Forum | Tue Mar 10 11:32:01 EST 1998 | Richard
Hello, I know nobody asked, but here are my 2cents on the newer, more comercialized layout of the forum. I frequent many of the SMT/Assembly forums and the ones I prefer to stay with are the ones that are NOT comercially oriented. Not having comercia
Electronics Forum | Tue Mar 10 03:01:30 EST 1998 | Pete Sorenson
| Cold Welding | I'm presently doing a project on reflow profiling. | I came across this expression. Can someone please give me a definition. | Best Regards | Tom Mc Grath A cold weld is a joint between two metals produced by the application of pr
Electronics Forum | Fri Mar 06 23:09:11 EST 1998 | Scott Cook
| We have a double sided pcb that is surface mount on both sides. Now a Through Hole connector has been added. Appart from hand soldering does anyone have info. on reflow soldering the part. The connector is 0.1mm pitch, square legs. | 1) Do you need
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 Mar 04 21:24:04 EST 1998 | Ron Costa
Hello everyone! Does any know anything about bare board size variations? Is there a spec. or tolerance? I'm running small lots of boards and during the screen printing process I find that I cannot paste each board perfectly.I've tried other screen pr
Electronics Forum | Thu Mar 05 16:25:27 EST 1998 | Brian Stumm @ ETS
| I am looking for information on reflow temps for a flex board. There is only one 6 pin IC but the board has a 3M double sided tape. | Is it possible to reflow without damaging the tape. Any suggestions? Do you have a profiler for your reflow oven?
Electronics Forum | Thu Mar 05 16:29:22 EST 1998 | Brian Stumm @ ETS
| Can anyone advise a good starting point for a temp profile for | on 0.05" and 1206 component boards? These boards are simple | by todays standards and do not contain any fine pitch or | other special components. | Thanks in advance... | MM Be hap
Electronics Forum | Sun Mar 01 15:52:13 EST 1998 | Earl Moon
| From several months I am investigation about the VOIDS PERSENCE and his important as reliability. | One question now is : | It is possible that on the BGA components the voids are already present into the balls, before the mounting on the pcb ? | I
Electronics Forum | Fri Feb 27 10:31:04 EST 1998 | Justin Medernach
Anybody, I am really up the creek. I run an RMA process for a lot of my product so I'm dependent on a degreaser. The degreaser we have is a Delta Sonics DS10R. This model is no longer supported by Delta Sonics as they were bought by Branson (spell
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