A novel maize variety designated PHR0C and seed, plants and plant parts thereof. The permanent magnets are configured in a relatively light weight manner to project a substantially cylindrical magnetic holding field or spherical holding field in space. Thereafter, the mask layer is patterned to form a first pattern and a second pattern therein, and the first and second patterns are partially transferred to the ARC layer using a transfer process, such as an etching process or a developing process.