What kind of patents, inventions and utility models can an integrated circuit apply for? Or something. Where can I find relevant literature?

1. Integrated circuit layout design is protected by copyright, but registered in China National Intellectual Property Administration;

2. If there are improvements in the circuit and manufacturing process, you can apply for an invention patent;

3, the improvement of the circuit or other structural improvement, you can apply for a patent for utility model.

I suggest sorting out what characteristics I think, and then consulting the patent agency.