Analysis method of head positioning error for hard disk drives - settling response analysis

In order to increase the areal storage density and improve the data access performance, precise positioning and fast access are required in the head positioning servo system of hard disk drive- The setting response, which is the transient response of a positioning error to the target position, should be improved to meet these demands In particular, the residual vibrations should be reduced and decayed enough before the read/write operation In this paper, the analysis method of the settling response, which is related to the TMR(track misregistration) budget design, IS shown.