Is it a matter of tuning length of a differential pair?

[Se-Hee_Whang]

I pressed 8 to generate a tuning pattern to tune the length of the differential signal pair.
However, the length difference between the two signals was large, so I added a skew tuning pattern.

However, no matter how much I adjusted the skew tuning pattern and generated more, it did not decrease below a certain length.

So in the end, I had to manually add a round pattern to make the signal length similar.

Why doesn’t the length of the differential signal adjust to be the same when adding a skew pattern?
Is this a bug or my mistake?

In other parts where the curved pattern was not added to the differential signal, I confirmed that the two lengths matched after adding the skew pattern.

[dsa-t]

Differential pair tuning patterns tune the max length of tracks in the pair, not the skew.

@Se-Hee_Whang

However, no matter how much I adjusted the skew tuning pattern and generated more, it did not decrease below a certain length.

You can reduce its amplitude to reduce its length. Also disabling “Rounded” and enabling “Single-sided” mode is useful sometimes.

Sometimes there’s not enough space on a track segment to place a skew pattern (but hard to tell without an example project).