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Table 1 Op-shock test results of unmodified HDD and HDD with dampening layer on the baseplate (all shock is of 0.5-ms duration)

From: Polymer-based dampening layer application to improve the operating shock tolerance of hard disk drive

 

200 G

225 G

250 G

275 G

300 G

325 G

Unmodified HDD

HDD #1

Pass

Pass

Pass

Fail

Fail

Fail

HDD #2

Pass

Pass

Pass

Pass

Fail

Fail

HDD with dampening layer

HDD #4

Pass

Pass

Pass

Pass

Pass

Fail

HDD #5

Pass

Pass

Pass

Pass

Pass

Fail

HDD #6

Pass

Pass

Pass

Pass

Pass

Fail