Electronics Forum | Tue May 16 16:54:14 EDT 2000 | Ashok Dhawan
For a typical assembly facility ( where assembly of circuit cards and shelves is carried out), what are usual recommendation for : 1.Ambient conditions ( Temp and Relative Humidity) 2.Use of Smocks If humidity is less than 40%, what are special prov
Electronics Forum | Wed Oct 05 10:52:28 EDT 2005 | Rob
Sorry for the miss-understanding - there are at least 2 types of MSD cards - reversible & non reversible. We use the non-reversible type. Once exposed they record the max humidity through a one way chemical reaction.
Electronics Forum | Tue May 15 21:57:06 EDT 2001 | davef
Welcome!!! Where the hay ya been??? Sorry bud, were lining-up with your fab [it hurts me to say that, but when yer ] We used to dry pack with desiccants, also. Its probably an old MIL-STD-2073-1C requirement [er something like that]. We qui
Electronics Forum | Mon Feb 22 12:20:51 EST 1999 | Dave F
| Does anybody have any reliable alternatives to device bake out for plastic bodied components. We do not use a whole package at time and therefore have to oven bake the balance before we can use them. | I have come accross dry nitrogen storage cham
Electronics Forum | Mon Jan 06 11:41:52 EST 2020 | robl
JDT http://www.DEKHEAD.com if you are in the USA Adamtech http://www.adamtech.co.uk/contact.asp if you are in Europe There are some good Chinese suppliers, but a lot of Far East cards can be tarnished & with a reduced life due to running in a high h
Electronics Forum | Wed May 05 14:37:58 EDT 2004 | Gaz
I'm not in production, but I do repairs by replacing CSP & LGA components on PCB's. Our components are supplied sealed in packs of 5 with a humidity indicator card and desiccant. I recently failed an audit by the company I do the work for because th
Electronics Forum | Wed Mar 16 06:46:59 EST 2005 | -=Verm=-
Hi lads long time no post... I have an issue with a PCB, its a PCI card that we manufacture for a customer of ours. The customer is seeing a problem with contact on a PCI card with the motherboard, the PCI card is removed from the board wiped and th
Electronics Forum | Wed Jan 19 17:01:18 EST 2000 | Chad Notebaert
You can buy desicant packs and indicator cards to place back in the original or a new bag with the BGA's and re-seal using a heat sealer (Vac Seal being the best). If properly done the material will be kept below the 20% RH level. Another option woul
Electronics Forum | Wed Apr 06 04:18:03 EDT 2011 | emmanueldavid
TK, Hope you got it right only for this round of assemblies. Well, passing through a Reflow belt is not an ultimate process to dry circuit cards & take out moisture from Solder finished layers. First of all, if the packs were not unsealed (even s
Electronics Forum | Fri Aug 12 22:10:24 EDT 2005 | Mika
I agree with all the prior postings! But I have some additional thoughts about this. If there is a build up of moistures (% humidity) inside the pcb; before you reflow the pcba; then you will have the result out of the oven, just as you described. My
