Electronics Forum: pcb baking (Page 1 of 35)

Bare PCB baking

Electronics Forum | Tue Nov 19 02:59:24 EST 2002 | yngwie

Hi Experts out there, pls help me with the following matters. How important is the bare PCB baking ? What is the temperature for baking @ what RH ? What would be the impact for the ENTEK finished board should the baking is really necessary ? For t

Bare PCB baking

Electronics Forum | Thu Nov 21 14:17:27 EST 2002 | MA/NY DDave

Hi I can't give you the answer for your question because I have too many questions and would have to know a lot more before I was comfortable giving any advice. I have done mass Baking of piles of PCB's as a needed evil when piles of boards were ex

PCB baking for rework

Electronics Forum | Tue Jul 16 01:12:31 EDT 2002 | ppcbs

We find that baking PCB assemblies at 90 degrees C in a Blue M forced air oven is safe for most all PCB's that we have encountered over the past 12 years. We remove any external plactic hardware that may be attached to the assembly and also like to

Bare PCB baking

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

PCB baking for rework

Electronics Forum | Tue Jul 16 00:53:39 EDT 2002 | kennyg

What is a typical time/temp baking cycle for an assembly prior to BGA rework? This bake is intended to prohibit PCB or nearby component damage as well as protect the component being removed for reball. A 24 hr bake at 125C would be great, but often

Bare PCB baking

Electronics Forum | Fri Nov 22 08:57:56 EST 2002 | davef

Q1: What do you mean by "if the board is manufactured properly"? A2: If the epoxy is noy cured prooperly, for instance, the copper will not be well attached to the glass. So, peel strength will be lower. Q2: I don't believe that the peel off/or lif

Bare PCB baking

Electronics Forum | Wed Nov 20 21:04:15 EST 2002 | yngwie

Hi Dave, What do you mean by "if the board is manufactured properly". If the board is not manufactured properly, humidity will have an impact on the peel strength? Is that what you mean. How does the Humidity impacted the peel strength ? Thru' which

PCB baking for rework

Electronics Forum | Wed Jul 17 11:45:48 EDT 2002 | fmonette

The current IPC/JEDEC standard J-STD-033 for moisture-sensitive devices does not include a bake cycle at 90C (it includes cycles at 40C and 125C for non-assembled components in reels or trays). However, the upcoming revision, which should be release

Bare PCB baking

Electronics Forum | Fri Nov 22 10:38:30 EST 2002 | slthomas

The follwing is from the Technet archives, per IPC's Jack Crawford. I dug it up during some investigation of a supplier's issues with humidity in an Asian plant: There is support for this in IPD-HDBK-001 w/Amendment 1 Handbook and Guide to Suppleme

baking boards, revisited

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

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