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Ramp structure for L/UL Hard disk drive with inertial latch Disclosure Number: IPCOM000013326D
Original Publication Date: 2000-Feb-01
Included in the Prior Art Database: 2003-Jun-18

Publishing Venue



Disclosed is ramp structure of Hard Disk Drive (HDD) with Load/Unload technology to improve anti-rotational shock resistance for depop model. (Figure) HDD with Load/Unload technology has latch mechanism to prevent head/disk stiction by rotational shock. This latch mechanism well works when high rotaional G shock. In case of low rotaional G shock with long duration, latch mechanism does not work correctly. And in case of depop model (less number of head), friction of ramp/suspension is lower than full model (full number of head). So actuator can move easily by low rotaional G shock. To improve anti-rotaional shock (especially for low G shock with long duration), it need to increase ramp/suspension friction. To increase ramp/suspension friction, it need to increase the angle of ramp at initial engauge. ("A" and "B" in Figure)