If the father of my child signs his rights over, does he still have to pay child support?

I am currently pregnant but not in a relationship with the father of my child. He had made it clear he is not interested in being a part of the child's life and I'm fine with that. I would ideally like for him to sign his paternal rights over to ensure I have full rights/full custody of my child and am not adamant about forcing him to pay child support. I have heard that we will probably have to go to court and he will probably have to pay child support, but as I said before I'm not concerned with making him pay child support and rather have him sign over his rights. Is this possible and if so what are the steps I have to take to make this plausible?