Patent ID: 8169727

Claim:
A hard disk drive, comprising: a disk base; a spindle motor mounted on said disk base and rotatably coupled to at least one disk to create at least one rotating disk surface including at least two sector zones and at least two servo pattern wedges; and a head stack assembly pivotably mounted to said disk base to position at least one slider at a flying height over said rotating disk surface near a track comprising a data sector in said sector zone, for each sector zone and a servo pattern in said servo pattern wedge, for each of said servo pattern wedges, with a radial cross section of said data sector including a land of a first width above a groove of a second width by a first depth, with a circumferential cross section of said servo pattern including a second land of a fourth average width above a second groove of a third average width at a second depth differing from said first depth and having the second land formed radially in the servo pattern wedge and contiguously between a servo wedge inner edge and a servo wedge outer edge.