Electronics Forum | Fri Oct 04 11:34:42 EDT 2002 | Bob Willis
Some additional comments from a paper may be of interest. Baking Printed Circuit Boards - Why and How Baking printed boards prior to conventional and surface mount assembly should not be necessary. Often boards are baked for historical reasons; in
Electronics Forum | Thu Jul 01 11:48:10 EDT 2010 | mb_mfg
Sid, Try baking the boards before running, to insure no moisture. Baking out the moisture will help prevent warping. Should you need further assistance, we supply fixtures to force the board to stay flat to reduce to thermo shock during wave solde
Electronics Forum | Mon Apr 18 20:44:30 EDT 2005 | davef
Charly: Why do you "need to bake the PCb due to moisture issue", if you're not going to use the board? Why bake the board, just to put it back in storage, absorb moisture, and require baking again?
Electronics Forum | Mon Apr 01 20:10:24 EST 2002 | davef
Oh. [Howabout if I smack you?] If ahma connectin� wif whut yer sayin�, you: * Don�t like the appearance of the glue slobberin� out from under the component even though there is no apparent glue on solderable surfaces. * Concerned about the hydrosco
Electronics Forum | Mon Nov 06 12:19:25 EST 2000 | Tom Gervascio
I ma trying to get some information on possible causes and screening tests for PCB delamination. Is the main cause moisture absorption of PCB material or entrapped chemicals and or air in innerlayers that expand when expsoed to subsequent reflow and
Electronics Forum | Thu Jan 26 17:59:07 EST 2006 | GS
How is RH% inside your Dry Cabinet ? What is the most critical MDL of your MSDs soldered on your board ? Best instructions about Handling of MSD you can get from Standard J-STD-033B/C. The defects you encountered at test it could be moisture absor
Electronics Forum | Mon Jan 04 21:03:22 EST 2010 | cman
1) I'm not familiar with the acronym CAF. Could you spell that one out for me? 2)Why do you feel they need to be baked? Are they in a high humidity enviornment? the only time we bake is when we are dealing with moisture sensitive components. Do you b
Electronics Forum | Fri Jul 04 21:09:04 EDT 2003 | ramanandkini
I have a CEM-1 PCB board with 35 microns copper. This is PCB is finished with SMOBC+HALS. We do solder SMT LEDs, but till date we do not have problems that you have listed. The LEDs are good & bright. It even passed high & low temp cycle tests (-40 t
Electronics Forum | Mon May 20 16:56:24 EDT 2002 | Gary
Excess slump of paste and mis-registration can cause solder balls along with moisture. Use same date code of pcb and run with no components, paste only. Also pre-bake boards with humidity sensor in oven. If high humidity, moisture and solvent residue
Electronics Forum | Wed Jul 13 11:59:06 EDT 2016 | emeto
Moisture before reflow is consideration, because damages parts and boards in the reflow process. It is all about this water expanding as gas and cracks part or causes PCB delamination. Moisture after reflow is still affecting the work of the product
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