Dear all, From my bottomless ignorance about standard cells: would a cell as described in the link below be a safe bet for implemeting a short pulse generator? https://skywater-pdk.readthedocs.io/en/main/contents/libraries/sky130_fd_sc_hd/cells/clkdlybuf4s15/README.html I simulated it in ngspice and works fine, but I couldn't find info about the internal implementation, I'm just assuming it's a delay element from the name, and it generated longer delay than e.g. a nand4 with shorted inputs any ideas on this are appreciated!

You've got the right idea, and yes, there's not enough documentation on the standard cells so I have had to make some educated guesses about the delay cells. Since timing is sensitive, make sure you simulate in ngspice with full R-C parasitics, even though there won't be much in the way of parasitic delays for a small cell.

super, thanks @Tim Edwards!