Electronics Forum | Thu Dec 16 04:14:16 EST 2010 | kemasta
Hi, I am new in this industrial. I learnt that PCB may absorb moisture and eventually caused delaminate after heat apply on it (reflow or wave). But I don't quite understand, if the PCB was keep in sealed bubble bag, and with the humidity control wit
Electronics Forum | Fri Mar 18 14:22:37 EDT 2011 | bradbriggs
We recently ran into a situation where a SMT header with tin plated tails would not wet properly during reflow. Someone told us that tin plating has a shelf life and needs to be re-tinned after a length of time. I have not heard of that before. Do
Electronics Forum | Thu Nov 30 00:41:23 EST 2017 | abhilash4788
Dear All, I have OSP finsh pcb on my production, the pcb thickness is 1.5mm and the product is one sideded pcba. After reflow process, Is there any specific time frame defined for smt completed OSP finish pcba before going for wave soldering proce
Electronics Forum | Wed Dec 06 09:09:54 EST 2017 | davef
Suppliers have improved the utility and quality of OSP [organic solderability preservative] solderable surface protection over the years. Be cautious reading too much into older SMTnet [and web in general] conversations about handling OSP. When prop
Electronics Forum | Thu Feb 08 11:39:51 EST 2001 | slthomas
Any adhesive tape, or stuff that uses it in packaging, like radial and axial parts. Ever try to get 5 year old 1/2 watt resistors to hold still in an axial sequencer dispense head? Yeesh.
Electronics Forum | Thu Mar 22 10:44:59 EST 2001 | davef
E-mail Dennis Fritz [DDFRITZ@AOL.COM] He works at MacDermid, Inc. Tell him what you know, what you're trying to figure-out, and I'm sure he'd try to help you.
Electronics Forum | Wed Apr 11 23:47:14 EDT 2001 | zam_bri
Thank you for the feedback guys. The concerns I have is related to components' performance as well as chipped-off & cracks. Does the performance also degrading over the time? thx
Electronics Forum | Fri Apr 13 17:08:57 EDT 2001 | davef
root around the following site http://www.faradnet.com/ ... you should find some good stuff on capacitors
Electronics Forum | Mon Jul 09 20:46:22 EDT 2001 | davef
Is the glue intended for printed SMD attach? 3 Are you following all the manufacturer�s glue shelf life recommendations? 4 Are you observing all the manufacturer�s glue working life guidelines? Finally, what level of skewing are we talking about?
Electronics Forum | Wed Sep 04 15:04:53 EDT 2002 | melo_guy
You said that you were sole sourced. Are you in need of a second source for crystals or oscillators? My company manufactures these components. send me an e-mail if you are interested.
