For logic, you can categorize by Logic Family.  There are also many more specialized processes that are needed to build things like lasers and their serialization, modulation and driver circuits as well as the matching photonic receivers.  Often the underlying processes are not compatible, therefore systems that integrate this into larger systems will need to interconnect multiple chips, either on the boards or with multi-chip packaging.

Silicon wafers cost seems to converge at about 70 cents per square inch one the novelty of the wafer production has warn off.