Rounded Rectangle pads |
Post Reply |
Author | |
chads108
Active User Joined: 17 Oct 2012 Location: Plano, TX Status: Offline Points: 35 |
Post Options
Thanks(0)
Posted: 30 Oct 2012 at 9:42am |
I see in the PCB Design Optimization presentation that recommended maximum radius for rounded rectangle pads is 0.25mm with a 0.01 round-off. Is there a recommended minimum radius before it gets so small that it wouldn't be of any advantage?
|
|
Tom H
Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5716 |
Post Options
Thanks(0)
|
There is no recommendation on the minimum radius because the 20% of the pad width has been tested for the finest 0.4mm pitch component for SOP/QFP. The minimum pad to pad spacing is 0.15 mm (6 mils). Therefore the minimum pad width = 0.25 mm (10 mils) and the corner radius on that pad = 0.05 mm (2 mils).
So 0.05 mm (2 mils) is the minimum radius. |
|
Post Reply | |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |