Electronics Forum | Sat Jul 16 13:53:52 EDT 2022 | yannick_herzog
Hello all, we use a reflow oven from Rehm in our SMT production. At the moment we solder under nitrogen atmosphere (approx. 500ppm). Now we want to reduce the nitrogen consumption (costs etc.). What consequences can occur here? Especially on the s
Electronics Forum | Tue Sep 22 10:52:31 EDT 1998 | Wayne Bracy
| We have problems with voids when we solder lids to | ceramic flatpackages. | The sealring of the package is gold(100 micro inches or 2.5 micro meters)with a underlayer of Nickel | The solder is attached to the lid (preform) and the solder material
Electronics Forum | Fri Sep 24 07:31:13 EDT 2021 | mun4o
Hi all, our company planning to buy a new /third/ smd line.I have choose P&P ,and solder paste printer , but I hesitate about reflow oven.Now we have two smd lines.The first oven is a old ersa hotfow5 - very robust machine. The second reflow oven is
Electronics Forum | Thu Oct 31 17:24:53 EDT 2019 | slthomas
Sorry I can't really answer any of your questions, but I'm curious about your idea. I've done vacuum drying of implantable medical components (made mostly of a proprietary bio-absorbable composition) but never electronic components. You're right to
Electronics Forum | Thu Feb 08 17:35:45 EST 2024 | stephendo
fluctuating PPM is not the Nitrogen if you are using liquid Nitrogen. It is the Oxygen. Your problem is not with the Nitrogen flow, it is Oxygen getting in your oven.
Electronics Forum | Thu Dec 02 23:43:23 EST 1999 | Kantesh Doss
We have a serious misalignment problem of D-Pak components (Specifically Motorola's part number MJD-3055/MJD-2955)following reflow soldering process. We are using Alpha Metals UP78 solder paste. Our reflow oven is Nitrogen inerted and our oxygen leve
Electronics Forum | Mon Jan 04 18:56:25 EST 1999 | Marc P.
| We have a Vitronics SMR400N oven and many times need to use N2 inerting. My problem is that it takes close to an hour of operation to purge the system to achieve the desired O2 levels (~40PPM). This is not only time consuming but results in an inor
Electronics Forum | Mon Dec 28 12:36:31 EST 1998 | Mark D.
We have a Vitronics SMR400N oven and many times need to use N2 inerting. My problem is that it takes close to an hour of operation to purge the system to achieve the desired O2 levels (~40PPM). This is not only time consuming but results in an inordi
Electronics Forum | Tue Oct 12 15:20:44 EDT 1999 | Jim Schultz
I need your help! We have been doing double sided surface mount for 4 years now. Up until 6 months ago I have not had a tombstoning problem. Since then I have a fairly high incidence rate of tombstones on the 0603 size resistors (no other parts).
Electronics Forum | Wed Oct 03 23:59:44 EDT 2018 | gaintstar
Flason SMT problem solving: http://www.flason-smt.com/new/PRINCIPLE-OF-SURFACE-MOUNT-PROCESS-SMT-PROCESS.html http://www.flason-smt.com/new/Printed-Circuit-Board-PCB-Price-Estimator.html http://www.flason-smt.com/new/Printed-Circuit-Board-Solder-res
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