Hermetically sealed data storage device with adhesive seal

摘要

Hermetic seals that maintain a data storage device atmosphere enable the use to alternate atmospheres to reduce the aerodynamic drag and turbulent excitation within the head disk assembly (HDA). A metallic seal having a base layer and a plating layer is compressed between the data storage device cover and base such that the plating layer fills surface asperities of the cover and base to create a hermetic seal therein between. Alternatively, the data storage device is encased inside a metallic can formed by seam sealing two housings together. Alternatively, an epoxy seam is dispensed around the periphery of the data storage device base to seal the cover thereon. An O-ring acts as a barrier to isolate the epoxy from the HDA atmosphere.