Help Needed for PCB Design for SMD device !

[saumya_85]

previously I made discrete board design using Orcad V16.0 tool.
But now plan to SMD based board design using design.

Generally what i was doing for discrete PCB board in Orcad as follows:

pad to pad 8mil
pad via 8mil
pad to track 8mil

track width .8mm

I heard that there is a rule for track width According to that track width will be set?


what is the Rule ?

How it is applicable for through hole component as well as for SMD on?

How should be the consideration taken for both the cases as for the rule?

 

[dipnirvana]

In view track width depends on current rating of your track and also on the capablity of your PCB manufacturer