Electronics Forum | Wed Nov 20 16:53:18 EST 2002 | davef
Q1: How important is the bare PCB baking ? A1: Baking boards is a non-value added activity. Q2: What is the temperature for baking @ what RH ? A2: Search the fine SMTnet Arcives for bake recipes. Q3: What would be the impact for the ENTEK finishe
Electronics Forum | Tue Oct 31 01:32:47 EST 2006 | hanocete
thanks for your reply, actually we bake the PCB assembly prior the rework because the package was exposed for quite some time already. The baking time was 24hrs @ 125 deg.C. We notice that there were flux residues on the connectors after the baking.
Electronics Forum | Wed Apr 04 17:40:39 EDT 2007 | davef
Rob: How do you rework blow-holes and pin-holes? PTH plating thickness SB 1 thou or greater. Epoxy is hydroscopic. So, you should control the environment and/or bake the moisture from the boards before soldering. Search the fine SMTnet Archives f
Electronics Forum | Thu Jul 25 08:58:22 EDT 2019 | Matt
Hey all, i'm hoping to get some feedback from the community on baking process versus a dry box. current process we have for rework of PCBs is to perform a 16 hour bake cycle on hardware before BGA rework is performed. however this process is ineffi
Electronics Forum | Wed Jun 24 18:50:31 EDT 2020 | premkumar_haribabu
Dear experts, We are in stage to fix lapse or hold time between pre-bake to reflow process ( SMT ) for flex-rigid PCB, usually for flex pcb , we need to assemble as early as possible once after baking & if not , we can store in humidifier up to some
Electronics Forum | Mon Apr 26 22:55:53 EDT 2004 | CT
Hi, I'm setting up a procedure for Moisture sensitive IC rework. Would like to understand what is the baking requirement for a board before a moisture sensitive IC can be remove from a board.
Electronics Forum | Thu Apr 09 07:37:18 EDT 2009 | fowlerchang
Another suggestion for it. Baking the whole boards before rework the BGA. It is not only benifit to the BGA but also to the pad.
Electronics Forum | Fri Dec 05 10:09:36 EST 2014 | robl
Hi Rob, Could be moisture getting into the boards or the BGAs or it could be drafts messing with the thermocouples measuring the heat at board level meaning you over cook it. Are you pre-baking the PCBAs & the BGAs before reworking and replacing?
Electronics Forum | Tue Sep 09 16:00:07 EDT 2008 | ppcbs
We always bake our loaded boards before any BGA rework is done. 12 to 16 hours at 100 c. We have had incidents in the past on loaded boards where 125 c has melted parts and the occasional low temp BGA trays. 100 c has proven safe for the past 10 y
Electronics Forum | Tue Oct 15 10:12:44 EDT 2002 | davef
1) Do people always bake, sometimes or never? Does this depend on whether MS sensitive components are near the rework site? If a BGA is to be removed and reballed, baking is a no-brainer. Sometimes, based on the proximity of the MS components. >2)
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