is there any relatioship with track vs via size
if i have a track width of 30 mils
what will be the via size that to used
is there any standards for vias
The minimum via hole size used will have a significant effect on the cost of the board as it limits the number of PCBs that can be drilled as a stack. Not withstanding the radio performance implications of small diameter via holes, typical minimum sizes of 0.25 mm are commonly used. A reduced cost will be achieved if the minimum hole diameter of 0.5 mm can be used.
hi
for a four layer board of thickness 2mm
wat will be the thickness of conductor dielectric and plane
can any one help me by giving more details about that
or is there any standards to be followed
Its a reliability issue,According to the current density u can place the via size.generally we used to take 3-4 times the min current density required..
is there any relatioship with track vs via size
if i have a track width of 30 mils
what will be the via size that to used
is there any standards for vias
Track width normally has nothing to do with via size. Aspect ratio of the board does in a normal drilled board set-up.
The accepted ratio is 6:1. So, for a .062" board, .010" would be the minimum drill size for a via.
Anything smaller would mean a premium fabrication charge, including Laser Vias which are usually smaller than .007 dia.
Its a reliability issue,According to the current density u can place the via size.generally we used to take 3-4 times the min current density required..
i wonder if in that case the via size will increase with respect to current !.
then iam sorry my friend. u can use multiple via for a better connectivity, named as seeding!