There are three types of skew that are used in VLSI. The skew are used in clock to reduce the delay or to understand the process accordingly. The skew are as FOLLOWS:

Local skew: This contain the difference between the launching flip-flop and the destination flip-flop. This defines a time path between the two.

Global skew: Defines the difference between the earliest COMPONENT reaching the flip flow and the the latest arriving at the flip flow with the same clock domain. In this delays are not measured and the clock is provided the same.

Useful skew: Defines the delay in capturing a flip flop paths that helps in setting up the environment with SPECIFIC REQUIREMENT for the launch and capture of the timing path. The hold requirement in this CASE has to be met for the design purpose.

There are three types of skew that are used in VLSI. The skew are used in clock to reduce the delay or to understand the process accordingly. The skew are as follows:

Local skew: This contain the difference between the launching flip-flop and the destination flip-flop. This defines a time path between the two.

Global skew: Defines the difference between the earliest component reaching the flip flow and the the latest arriving at the flip flow with the same clock domain. In this delays are not measured and the clock is provided the same.

Useful skew: Defines the delay in capturing a flip flop paths that helps in setting up the environment with specific requirement for the launch and capture of the timing path. The hold requirement in this case has to be met for the design purpose.