Method of Forming a Probe Type Head for Vertical Recording
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11
Batch fabrication of probe-type heads for vertical recording is accomplished by photolithographic methods. The process employs a ferrite wafer 1 that is slotted, as illustrated in Fig. 1. The width of the slot corresponds to one-half of the predetermined height of a finished head slider support. The surface of the wafer is coated with a non-magnetic hard material 2, such as alumina, by vapor deposition or other known methods (Fig. 2a). The coated wafer is lapped to expose the ferrite surface (Fig. 2b), leaving the slots filled with the oxide-coated material 2.