Studies of bit aspect ratio and areal density using microtracks

摘要: With decreasing trackwidth, track density increases while jitter goes up, limiting the linear density. Overall, we expect a gain in areal with reducing bit aspect ratio (BAR). In order to create narrow trackwidths thereby achieve small BAR, utilized microtrack technique. This novel approach enabled us produce tracks varying widths without using special heads. We measured of microtracks, verified dependence on effective reader width and established relationship BAR.