sector servo field application_number US 1367201 A description as bit density and track density for higher capacity disk drive assemblies increase the total number of sector servo fields typically must increase to meet drive shock and vibration operation requirements which may be dependent on environment in general if disk surface area used for sector servo position information fields can be reduced disk surface area for data storage may be increased 0034 fig5 illustrates a track layout of an interleaved sector servo field arrangement in accordance with an embodiment of the present invention reduced sector servo burst fields b are interleaved between the data fields in place of corresponding regular sector servo bursts fields a specifically the track layout includes in order regular sector servo burst field a 10 followed by data field 20 reduced sector servo burst field b 30 data field 40 regular sector servo burst field a 50 data field 60 reduced sector servo burst field b 70 etc reduced sector servo burst fields b 30 and 70 are inserted in place of regular sector servo burst field a as will be described and understood in greater detail as follows the reduced sector servo burst fields b are smaller than regular.