Patent ID: 6987648

Claim:
A magnetic media having a timing based servo track prepared by a process comprising the steps of: providing a magnetic recording head having a timing based gap pattern, the magnetic recording head comprising: a substrate; a magnetically permeable thin film deposited onto the substrate; a gap pattern forming a timing based servo track, the gap pattern being milled through the magnetically permeable thin film using a focused ion beam, wherein the focused ion beam is oriented in a direction that is parallel with a resulting gap depth through the magnetically permeable thin film; and a coil coupled to the substrate, wherein the coil controllably causes magnetic flux to flow through the substrate and the thin film; moving a magnetic media, which does not have a timing based servo track recorded thereon, across an upper surface of the magnetic recording head in a transducing direction; causing electrical current to flow through the coil; and causing magnetic transitions to occur on a surface of the magnetic media, a magnetic pattern being formed in substantially the same pattern as the gap pattern of the magnetic recording head which forms the timing based servo track on the magnetic media.