BGA Via size

[shereesubahan]

What can be the via size of 0.8 X 0.8 mm pitch 484pin-BGA, Trace tickness

[Paul van Avesaath]

i normally use 18Mil annular ring and 8mil hole

[shereesubahan]

pad size is .45mm X .45mm, pitch is 0.8X0.8mm, Minimum clearance is 0.2mm in this spec if we use above 18Mil annular ring and 8mil hole , getting clearance error wit adjacent pads

[Lakshmi]

You stated that minimum Clearance between the pads is 0.2mm. Is this information given in the datasheet?
Could you please share the Part Number?

[Paul van Avesaath]

this might help

[robertferanec]

shereesubahan, have a look at our OpenRex open source project - that is using 0.8mm BGA.

Here is link to the project, you can download there Altium files: https://www.imx6rex.com/open-rex/