Abstract
The discrete track technology is promising as the technology that makes high track density. It decreases cross talk from the adjacent track because the track is separated in physically and magnetically by the grooves. However, the magnetic head does not fly stably on the disk with grooves. Therefore, it’s necessary to make smooth surface by refilling the grooves with non-magnetic material. We tried to flatten the discrete track media surface by using the bias sputtering method and the etching back method in dry process.
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