Hitachi Global Storage Technologies Netherlands B.v.

Jing Fang Pan

Shaoyong Liu

Yi Zhao Yao

Kor Seng Ang

Sivalingam Marimuthu

Yeow Yong Chan

A method and apparatus for a filter for filtering airborne particles present within an enclosure containing equipment sensitive is provided. The filter may be used within the enclosure of a hard disk drive. The filter may comprise a magnetic plate enclosed by a protective layer, which in turn may be enclosed by a non-woven scrim. The magnetic plate has a magnetic property that generates a magnetic field attractive to paramagnetic particles within the enclosure. The protective layer forms a barrier that prevents particles of the magnetic plate from entering into the enclosure. The non-woven scrim may, but need not, have an adhesive property which traps non-paramagnetic particles coming in contact with the non-woven scrim. If the non-woven scrim lacks an adhesive property, then at least a portion of the non-woven scrim may be coated with an adhesive layer which traps non-paramagnetic particles coming in contact with the non-woven scrim.

Airborne particle trap within an enclosure containing sensitive equipment

The present invention relates to HDD screws, and more specifically to lubricating the HDD screws. HDD screws may be coated in a layer of a PFPE based lubricant to reduce friction while fastening the screw into a HDD. In addition to providing superior lubricity and reduced friction during fastening and longer shelf life, PFPE lubricated screws provide narrower clamping load distribution and lower particle generation compared to currently used screw lubricants. Furthermore, because PFPE lubricants are also used to lubricate magnetic disk surfaces, the HDD screws may provide a reservoir for replenishing depleting lubricants on the magnetic disk drive surface.

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Singapore, Singapore

Jing Fang Pan