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 | 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 | 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 | 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 | 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 | Thu Jul 20 13:57:04 EDT 2000 | Boca
I am not answering for Techguy2000, but I am chiming in here, I have the same problem. Our resistor packs are ceramic body with no leads, they have a metalized area reminicent of the old castelation leads of year gone by. The lead pitch is 50 mil
Electronics Forum | Thu Jan 24 16:17:31 EST 2002 | mzaboogie
I have recently been asked to look into some problems that we are having at wave. It is common for us to have unsoldered joints for boards that have SMT parts epoxied to the bottom side. Recently we have had a problem with a gold plated board. The wa
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 | Wed Feb 10 18:26:04 EST 1999 | Earl Moon
| Has anyone had any experience in using SMT to mount an organic (FR-4, Getek) rider card onto an organic (FR-4, Getek) mother board? By SMT I mean the attachment of the rider card would be through pads directly to pads on the mother board. | | Than
