# Spare cell


![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1653392241113/j_DVCpnIl.png align="left")


![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1653392267614/IqV-sjjaN.png align="left")



![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1653395484846/VUceZpoeW.png align="left")



![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1653395549213/778_TrEr7.png align="left")


![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1653395569401/HwLBfXHeA.png align="left")




![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1653395616880/pn34G1q41.png align="left")

Spare cells can't be used as filler cells because 
1. It will consume more area and power 
2. Spare cells are not available in all size 
But vice versa can be possible we can use filler in place of spare with appropriate logic.