# What is the triangle symbol in circuit diagrams?

What is the triagular symbols shown in the image, is it a buffer or some kind of delay?

• It looks like a non-inverting buffer, but could just be indicating the direction the signal is being driven. In this example it could possibly be to introduce a delay so the clocks are triggered right-to-left rather than all at once
– Frog
Jun 4 '21 at 9:58
• Given the title "controlling clock skew" it indicates a buffer, which adds some skew. Jun 4 '21 at 12:05
• Please accept an answer as solution once it solves your problem. I have noticed that you are asking questions here, but you never acknowledge any of the answers till now. That's not a fruitful way of using EESE. Jun 5 '21 at 12:35

And yes, it introduces a delay in that path. For instance, in your particular example, the clock edge reaches U2 slightly later than at U3, approximately equal to the buffer delay $$\\delta\$$. This difference is called clock skew.