摘要:
The present invention pertains to a method for measuring the amount of fluid disposed on an object. The method includes weighing the object with the fluid disposed thereon. The object is then heated at a substantially constant temperature until all the fluid disposed thereon is removed, where a substantially constant temperature is maintained from the point at which the heating is initiated. The object is then re-weighed. The weight of the fluid disposed on the object is then calculated by subtracting the weight of the object after heating from the weight of the object before heating.
摘要:
Removing contaminants from an electroless nickel (EN) plated surface. A surface of an EN plated object is washed in a first deionized water to remove a first portion of surface contaminants. The surface is immersed into a chemical solution wash for a pre-determined duration to remove nickel phosphate particles from the surface, wherein the chemical solution wash comprises at least one type of chelating agent dissolved in a solvent. The chemically washed surface is then washed in a second deionized water to remove a second portion of the surface contaminants.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A system and method for opening a vacuum package is disclosed. The method includes providing a chamber at a normal pressure and loading the chamber with a vacuum package wherein the vacuum package is at a first pressure. The method also includes applying a vacuum to the chamber such that the pressure inside the chamber is substantially equal to the first pressure. The method further includes opening the vacuum package and equalizing the pressure inside the chamber to the normal pressure.
摘要:
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.
摘要:
A method and apparatus for sealing a pivot axle and bearing assembly during submersion cleaning of a head stack assembly with the pivot axle and bearing assembly installed is described. The sealing apparatus includes a pair of caps, one cap for sealing the top of the pivot axle and bearing assembly and a second cap for sealing the bottom of the pivot axle and bearing assembly. The sealing apparatus also includes a retaining device for retaining the pair of caps on the pivot axle and bearing assembly during the submersion cleaning process.