Electronics Forum | Fri Jun 10 13:54:01 EDT 2022 | davef
Solder connections to the castellated and other components need improvement. Are you profiling on the problem leads? Microchip Technology Inc. RN4678 Bluetooth module reflow recommendations - http://ww1.microchip.com/downloads/en/DeviceDoc/RN4678-Bl
Electronics Forum | Thu Oct 25 14:18:16 EDT 2007 | jsloot
Is anyone able to help me out on a aperture design for a lead free castellated part? please contact me if you can.
Electronics Forum | Mon Jun 13 12:52:33 EDT 2022 | leeg1
Has the part not got a pad underneath and therefore the flow up the castellated side doesn't have to be as crucial?
Electronics Forum | Mon Jun 13 15:27:15 EDT 2022 | llawrence
No there are no pads except for the castellated ones on the side. These boards are being used on agricultural machinery though so a less than ideal solder joint would likely be prone to failure over time
Electronics Forum | Mon Jul 26 19:32:03 EDT 1999 | Steve Gregory
| Can anyone give me the virtues of SMT package castellations vs. no castellations with particular reference to the ruggedness and reliability of the solder joints? Any references or studies that you can point me to? Also, although I'm in favor of
Electronics Forum | Thu Jun 09 20:16:28 EDT 2022 | llawrence
Hi, We are producing a board that contains an RN4678 bluetooth module, and an STLINK-V3MODS module, both of which are castellated modules. I am constantly having issues with the modules being soldered to the PCB incorrectly. It seems that the RN4678
Electronics Forum | Thu Dec 14 21:54:50 EST 2000 | Joseph Scott Dowsett
I am student at Northern Illinois University and am doing a senior design project on applying castellated solder pads (pads on the side of the substrate) to a hybrid circuit. I have had difficulty finding related articles. I found this website and
Electronics Forum | Sun Oct 28 08:32:47 EDT 2007 | davef
With a 7 thou stencil, we'd go 1 to 1. So for a more typical 6 thou stencil, we'd bump the aperture area by 1.15, maybe 1.2. We make no distinctions between 'innies' and 'outies'. Are you talking about castellations on land grid devices [ie, BCC�, L
Electronics Forum | Thu Oct 25 21:33:24 EDT 2007 | hussman
Castellated is the easiest lead design. Anything longer than the out side dimension of the part should be OK. However, you will never get an inspection person to say it looks OK, yet the solder joint occurs on the bottom side of the part - like a B
Electronics Forum | Fri Dec 27 13:16:18 EST 2019 | slthomas
Can you describe the failure mode of the soldering defect, i.e., is it failing to meet the height requirement for a castellated termination due to not wetting of the component terminations, or not wetting the pads sufficiently, or....? We install a
