9 track and 12 track in standard cells

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Vijay
Posts: 25
Joined: Sun Apr 13, 2014 1:39 pm
Location: Bangalore, India

9 track and 12 track in standard cells

Post by Vijay » Tue Apr 15, 2014 11:59 am

What is the basic difference between 9 track and 12 track in standard cells? Who does a track means?

bhavneetsingh1
Posts: 2
Joined: Mon Apr 21, 2014 12:22 am

Re: 9 track and 12 track in standard cells

Post by bhavneetsingh1 » Mon Apr 21, 2014 2:04 am

Firstly track can be related to lanes, eg like we say 6 lane road, implies 6 vehicles can run in parallel. So 10 tracks would imply we can route 10 wires in parallel with minimum pitch.

Now, 9/12 track implies 9 routing tracks are available for routing 9 wires in parallel with minimum pitch. For example if for 28nm we are using 9 track standard cell library with minimum metal pitch of 100n. In this case we will have standard cell of height 0.9um (100n*9) where 9 horizontal tracks are available for routing.

tejaNSRP
Posts: 1
Joined: Mon Nov 30, 2015 2:57 pm

Re: 9 track and 12 track in standard cells

Post by tejaNSRP » Mon Nov 30, 2015 2:59 pm

what is the limitation on number of metal tracks?
why cant we reduce less than 7 tracks? how do we fix them this many number of tracks should be there?
i mean supporting calculation of tracks and their widths.

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