What are standard cell tracks ?

Status
Not open for further replies.
P

praneshcn

Member level 5
Joined
Aug 23, 2007
Messages
90
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,288
Activity points
1,899
hi,


wat are tracks in std cells?
what is meant my 9track,12track std cell?
wat is d diff bt the above 2?
which one is advantageous?
 

standard cell 9 track

track is the path in which wires can pass through
 

routing tracks 12 track 9 track asic

How many tracks means how big your cell is. normally, 8 lambda is one track if I am right. It depends on the technology.
 

what is 9-track standard cell library

Hi,

one track is approximately the minimum spacing between metal1 and metal1 via in a technology node . Track is generally used as a unit to define the height of the std cell. a 12 track cell will be taller than a 9 track cell. a 12 track std cell will be taller , that means more metal1 routing space is available within the cell, hence cells will be faster. where as in a 9 track cell, the cell will be compact, but speed is less compared to 12 track.
9track -> less area, less speed compared to 12 track
12tarck -> more area, more speed compared to 9 trac

Regards
Nav
 
track in standard cell library

hi can u eloborate on the relation between more metal 1 routing space availability and speed of the standard cell......................
 

9/12 track standard cells

Suppose you have a NAND gate. Now with same W/Ls of transitor if you make layout in 9 tracks and 12 tracks, then 12 track NAND gate layout would be somewhat in thinner but taller by 33.33%. Since it is taller that means there is more space horizontally available for routing over this 12 track cell compared to 9 track cell.

Parikshit
 
standard cell and track

hi praneshcn,

the basic funda is simple , bigger cells has better driving capablity , than their equivalent normal cells . i.e they will be faster than their normal counter parts

Regards
Nav
 

What is "via"?
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…