Electronics Forum | Tue Jan 31 13:20:15 EST 2006 | mgdrouin1
Does anyone have any information regarding damaged caused to components due to overheating primarily with a heatgun? I'm having a hard time getting engineering to comply. Thanks
Electronics Forum | Tue Jan 31 13:22:15 EST 2006 | mgdrouin1
Does anyone have any information regarding damaged caused to components due to overheating primarily with a heatgun? I'm having a hard time getting engineering to comply. Thanks
Electronics Forum | Tue Jan 31 13:41:12 EST 2006 | outgasser
We are currently experiencing problems with delamination during rework/2nd op activity on lead free. I am suspecting this is a result of the use of a heat gun to rework components. My assumption is that the high heat and time in area greatly increa
Electronics Forum | Tue Jan 31 14:14:03 EST 2006 | samir
Ah, yes. The age-old battle of Production Supervision versus Process Engineering. I guess you just need to tell your Process Engineer, "Pretty please with sugar on top, investigate this f*cking issue."
Electronics Forum | Wed Feb 01 08:18:28 EST 2006 | slaine
RS sell a heat cun that is fully temperature adjustable buy one of them and pre set it to the right temp then put a calibration sticker over the control.
Electronics Forum | Tue Jan 31 15:44:08 EST 2006 | John S.
We're looking at lead free surface finishes for some of our products. On one supplier's site, I found a note that tenting vias on ENIG boards can lead to the black pad phenomenon. How does this compare to your design guidelines and experience? Than
Electronics Forum | Tue Jan 31 15:52:39 EST 2006 | russ
I have never related Solder mask layout to Black Pad. I don't see how they could be related but.......
Electronics Forum | Wed Feb 01 08:20:04 EST 2006 | Chunks
Can you post the site where you saw this? I've never heard of such a thing.
Electronics Forum | Wed Feb 01 14:31:03 EST 2006 | John S.
http://www.saturnelectronics.com/docs/Getting_the_Lead_Out.pdf This is a document provided by one of our suppliers discussing lead free PCB considerations. Within the document, it mentions black pad being associated with tented vias. Thanks John S.
Electronics Forum | Wed Feb 01 16:04:10 EST 2006 | russ
Yes it does doesn't it! I wonder how this can cause black pad. Can you contact Saturn and ask them specifically? I browsed other PCB MFGrs. for this type of info and cannot find anyone else who claims this.
