Electronics Forum | Wed Jul 04 10:40:51 EDT 2001 | nifhail
I have thousands of old datecode PCBs which has an Entek and HASL finished. Entek PCBs are about 6 � 1.5 years old and HASL boards are at 1 - 2 years old. To make it worse, some of them came in the loose form, no vacuum seal� nothin�. As for the HA
Electronics Forum | Thu Jul 05 11:14:04 EDT 2001 | caldon
We can offer two ways. We have a process control tool for OSP boards to validate the finish......but the dates yer talking may be best to take Daves F suggestion. NOW as far as the HASL finish goes...We may have your answer. We can Chemically revers
Electronics Forum | Thu Jul 05 19:39:19 EDT 2001 | davef
I had forgotten that it was you that was on the Sipad adventure. [But then again, who can keep track of yer aliases? ;-)] You just go from one adventure to the next. Expanding On Dave�s Hi-Test Flux Method Theory � PASTE: Yes, contact your favorit
Electronics Forum | Wed Jul 04 12:35:19 EDT 2001 | davef
I thought I responded this this a while ago, guess NOT!!! Wow, Dano yagot Entek boards that are that old!!!! Coo. Sounds kwazy that you�d end-up with that volume of old boards, but it�s probably one of those deals where correcting the problem keep
Electronics Forum | Sun Jun 13 01:39:49 EDT 2004 | Vahid V
Is there a indutry standard on SMT datecode? My last company's guideline was two years but I don't remember seeing any specific studies. Thanks.
Electronics Forum | Mon Sep 09 07:51:00 EDT 2002 | yngwie
I don't know when I can get done with an old datecode material..anyway, thanx for the help guys. cheers.. zambri
Electronics Forum | Thu Sep 24 09:15:42 EDT 2009 | markgray
I had this issue a few years ago with Kingbright LED's. The problem was extreamly random. When i changed to a different datecode my problem went away.
Electronics Forum | Mon Jul 20 17:40:48 EDT 1998 | socheat khun
| Does anyone know why this typically occurs. We have seen capacitors crack due to stressing. Any good solutions? | Regards, | | Steve. Hi steve! Did you check component date-code, reflow profile and component placement height. it has happen to me
Electronics Forum | Tue Jun 26 12:39:08 EDT 2001 | danial
Our mother company shipped to us a lot of old datecode material and upon running them in the line we experienced non-wetting condition, esplly on the 0402 ( not tombstone ) We have run a dip-and-look test but I guess the method is very subjective as
Electronics Forum | Thu Nov 04 07:53:45 EST 1999 | Chad Notebaert
Sounds like you have a component problem! I say this because you say the sodler is flowing away from the components (leads I assume) This sounds like none wetting of the component. Do a solderability test on the parts. Take the parts and dip the lead
