Electronics Forum | Sun Oct 15 23:31:39 EDT 2000 | mkwong
I have a question for N2 reflow, I want to know how difference of the O2 PPM in reflow oven then get the result? Now, we use the N2 to purge into BTU oven and measure the O2 PPM is about 1,000. but cannot find the difference to compare to compress ai
Electronics Forum | Wed Jul 31 13:09:17 EDT 2002 | gdstanton
Anyone have experience with Indium NC-SMQ92J solder paste used in an inert (N2) reflow oven?
Electronics Forum | Tue Feb 13 05:11:58 EST 2018 | ameenullakhan
Hi, We are using 10+2 reflow oven ( BTU Pyramax 150 ). We have tried with short TAL ( RTS profile too ). As of Now we are using the attached profile, which has given us lot better results. But the issue is not eliminated. Thanks
Electronics Forum | Thu Dec 19 18:44:06 EST 2019 | tey422
We opened 2 separate holes at the roof. 1 for the SMT 2 reflow ovens to share; another 1 for the wave soldering.
Electronics Forum | Tue Apr 18 07:19:19 EDT 2023 | bukas
hi, does anyone know what type is Carlo Gavazzi sensor on REHM SMS2 reflow oven? The only marking I see on one I have is "Tripleshield tm"
Electronics Forum | Mon Feb 23 14:44:08 EST 2009 | sunny
Are boards produced using Vapor phase ovens dirtier than N2 Reflow oven. Are there any studies/papers someone can point to? if not what are the methods to verify this? is IPC specified SIR test using 24B SIR test coupons? please advise. thanks in adv
Electronics Forum | Fri Feb 01 14:49:52 EST 2013 | emeto
Thank you guys. You keep adding valuable information here. I think we will try to stick with the 3 times reflow(if we count the BGA repair as 2 reflows). However sometimes we will run the board second time through the oven(just flux the suspect part
Electronics Forum | Fri Feb 01 17:53:19 EST 2013 | hegemon
In agreement with Evtimov. Max 5 reflow cycles. Something like this scenario: Build bottomeside 1 Build topside 2 Reflow topside for suspect opens beneath BGA 3 Remove BGA during rework 4 Replace BGA during rework 5 Any convective rework after that,
Electronics Forum | Thu Dec 26 15:27:22 EST 2019 | emeto
Lead Free SMT 1. Stencil printer Squeegees s -should have Pb free pair 2. Reflow oven - should be able support Pb- free higher temperatures. 3. In case you have inspection table on the SMT line - should have Pb-free mats(usually different color)
Electronics Forum | Mon Dec 04 18:29:47 EST 2006 | SWAG
Some production problems we've faced: 1) Delamination; 2) Reflow fixture distortion; 3) Obsolete parts; 4) Failure of blower motor bearings in older reflow ovens; 5) Poor toe fillets with miniSOTs on thicker PCB's; 6) Lack of updated component data s
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