- Fri Oct 18, 2013 11:36 pm
#164634
I've been looking for a PCB manufacturer that does hobby-size orders and supports edge castellation, so finally I just bit the bullet and sent in an order to SeeedStudio with a castellated design, just to see how it ended up. I specified the castellations by creating square vias (16 mil drill) along the edge of the board with the dimension layer drawn straight through the middle of them. I also put pads on the bottom of the board just to increase the bottom surface area, but that probably isn't necessary. This board is a 1.27mm pitch for the castellation contacts.
My camera doesn't do great macro photos, sorry, but the end result turned out great, no milling problems like I've seen some people talk about.
I just figured I'd post my results here in case anybody else was interested in doing the same thing. SeeedStudio doesn't mention castellations anywhere on their page, so I figured this may help somebody else. YMMV, especially for different size pads, different pitch, different PCB thickness (mine were 0.8mm thick), etc. but there ya go. Here's it is, mounted on the target board:
My camera doesn't do great macro photos, sorry, but the end result turned out great, no milling problems like I've seen some people talk about.
I just figured I'd post my results here in case anybody else was interested in doing the same thing. SeeedStudio doesn't mention castellations anywhere on their page, so I figured this may help somebody else. YMMV, especially for different size pads, different pitch, different PCB thickness (mine were 0.8mm thick), etc. but there ya go. Here's it is, mounted on the target board: