If sperm falls and dries does that place become napaak?

Assalamu Alaykum Mufti ,
If a couple has intercourse or does something of the sexual manner and the sperm happens to fall on the floor etc .. if the sperm dries does that place become paak again?
or would that place have to still be cleaned and how so if carpet and if tiles would we just have to wipe it with a cloth