Electronics Forum | Wed Mar 26 20:48:22 EDT 2008 | davef
Sealing clip, clamps used in semiconductor, hybrid packaging * Connor Manufacturing Services; 16233 N.E. Cameron Blvd., Portland, OR 97230; 503-256-0230 F503-256-0246 connorms.com * Electro Assembly Source; 602 Sciandro Dr, Greensburg PA 15601; 724-8
Electronics Forum | Sat Nov 21 01:42:28 EST 2009 | Sean
Hi Patric, You are right...WE found that this problem disappear once we seal the PCBA bottom side (Intel's Northbridge area). Once we remove the seal, the problem is coming back.. In this case, I thnk conformal coating is necessary... Besides, I
Electronics Forum | Fri Mar 19 13:18:03 EDT 2010 | deanm
Regarding your question about buying equipment to vacuum seal the MBBs, according to the IPC/JEDEC standard, "Full air evacuation is not needed or recommended; light air evacuation will reduce the packaging bulk and enhance carton packing. Excessive
Electronics Forum | Wed Aug 31 14:45:35 EDT 2011 | ryanr
Non-Hermetically sealed parts are parts are not air tight and gasses and liquids will pass into the package of the part and come in contact with the electrical or other components within the package (i.e. some switches, relays, transformers, etc.) D
Electronics Forum | Tue Jul 29 14:25:20 EDT 2014 | kenkay
We have been struggling for a while with some through hole sealed mechanical relays that fail at test after they have been sitting a while. They will initially pass test, but seem to fail if they sit for a few days. We made sure our wave process was
Electronics Forum | Tue Apr 19 10:09:33 EDT 2016 | swag
Try a nozzle changer teach. Machine will look for fids on the changer block. If that doesn't work, clean the rubber seals in the bottom of the block. No alcohol - dries them out. Might need to replace them if they are dry or cracked. Clean your
Electronics Forum | Tue Mar 05 07:42:03 EST 2019 | charliedci
We've noticed that bare PCB from fab house use bubble wrap vacuum sealed, however most of the time at the corners of stack of PCB bubble wrap is broken. Can't get our PCB house to change. For moisture sensitive components in house after partial use
Electronics Forum | Thu Aug 11 20:03:41 EDT 2022 | SMTA-69946521
I have a question about Humidity Indicator Cards (HIC) in sealed PCB packages. If a PCB package is temporarily opened where the HIC card indicates 20% humidity exposure and then the PCB package is resealed with a new HIC card. How is the 20% moisture
Electronics Forum | Fri Nov 11 22:14:11 EST 2022 | kumarb
I would certainly test the boards but from our experience, the vacuum sealed in room temp, no issues at all with our PCBs sourced from Suntak / PCB Founder / Fastprint / Yaxinda / JLCPCB well past the 12 month mark. We building boards purchased 5-10
Electronics Forum | Wed Feb 22 08:31:42 EST 2006 | davef
Q1 Are there any standard regulating the subject? Very few infos found on IPC. A1 We�re unaware of standards for packing and storage for most types of boards. * IPC 4553 standard for Immersion Silver Finish, 3.8 Packing and Storage. * J-STD-033 and E
