Electronics Forum | Tue Aug 16 15:43:32 EDT 2022 | emeto
Humidity card should show actual humidity in the package accurately. If it shows below 10%, actual humidity should be less than 10%. There is nothing to account for from previous cards.
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 | Wed Feb 11 08:04:16 EST 2004 | autissier
I'm looking for input from anyone who has experience assembling the LGA package on PCBs. Design, stencil opening, or other requirements are welcoming
Electronics Forum | Mon Nov 06 03:00:03 EST 2023 | roachindignant
The humidity card must reflect the precise level of humidity present in the shipping container. If the reading is less than 10%, then the relative humidity is less than 10%.
Electronics Forum | Thu Aug 30 12:31:26 EDT 2018 | emeto
We all agree that you have a PCB issue. It would be for the best if you use a lab to investigate a few of these PCBs. It would be interesting to investigate the plating specs and contamination levels. For a start you should insist on proper packaging
Electronics Forum | Tue Nov 15 22:33:16 EST 2022 | kumarb
Yes, solderbility. I recall one case of a vendor we met at a past HK electronic fair. Pricing was ok, we selected them and ordered a batch of boards. After a few months of leaving the PCBs in a sealed package (vacuum), we attempted to use the PCBs. W
Electronics Forum | Mon Jul 22 14:38:33 EDT 2013 | jorge_quijano
Hola; I have some PCBs with more than 1 year in its original package at warehouse, I'm supposed to "validate" these PCBs to be in "good shape" so they can be used, but honestly I have no idea what can I do to check them besides a visual inspection. W
Electronics Forum | Fri Nov 11 03:19:29 EST 2022 | angela t
There is a big difference between SMD and SMT. One term denotes a device and the other a process.SMD, or surface mount devices, are electronic resistors that sit on a printed circuit board (PCB).SMT, or surface mount technology, is a method of placin
Electronics Forum | Tue Mar 23 03:42:51 EDT 2010 | grahamcooper22
Hi, It is very important to follow IPC JEDEC 33 specification for storage and handing of all MSDs. In many instances defects caused by excess moisture in packages is not immediately evident (pcbs may pass final test) but when pcb has been in the fiel
Electronics Forum | Tue Apr 01 09:03:39 EST 2003 | kmorris
Hi: I'm looking for input from anyone who has experience assembling the MLP package on PCBs. We are experiencing solder opens after assembly, and I'm curious to see how others are processing these critters. The part we are using is a Semtech SH3000
