Electronics Forum | Thu Oct 25 14:16:43 EDT 2007 | jsloot
Is anyone able to help me out on a typical aperture design for a castellated lead.
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 | 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 | Mon Jul 26 18:28:10 EDT 1999 | Jon Prokop
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 pr
Electronics Forum | Tue Jul 25 13:40:04 EDT 2017 | davegoad
I have some CERSOT-23 transistor packages with castellated terminals. The 4th lead (drain castellation) is electrically connected to the top of the device by the castellation. The castellation goes up the ceramic body and contacts the metal package
Electronics Forum | Tue Jul 27 16:30:35 EDT 1999 | Earl Moon
| 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 | 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 | 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
