Browse Prior Art Database

Disk Storage Device with Intra-Disk Air Cleaning

IP.com Disclosure Number: IPCOM000015079D
Original Publication Date: 2002-Sep-08
Included in the Prior Art Database: 2003-Jun-20
Document File: 1 page(s) / 38K

Publishing Venue

IBM

Abstract

Small particles, that adhere to components, are often created during manufacture or operation of a disk storage device. These particles may find their way onto the disk surface where they create defects. This idea reduces the number of particles by trapping them on a device close to the disk surface.

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Disk Storage Device with Intra-Disk Air Cleaning

Small particles, that adhere to components, are often created during manufacture or operation of a disk storage device. These particles may find their way onto the disk surface where they create defects. This idea reduces the number of particles by trapping them on a device close to the disk surface.

There are a number of possible embodiments of this invention. Five such embodiments are as follows:

1. Adhesive material on the comb and/or suspension.

One embodiment is to cover the suspension and comb with a sticky material to catch the particles that could otherwise come in contact with the disk.

2. An attachment on the comb and/or suspension covered with a sticky material.

This embodiment is similar to the one above, except that the shape of the comb is altered, by adding surface area in the direction perpendicular to the airflow, the cross-section for collecting particles increases.

In a third embodiment, a filter is attached directly on the comb and the air is cleaned as it flows over the disk.

To improve its particle trapping efficiency, especially for dielectric or charged debris, the filter could be electrostatically charged.

In a fourth embodiment, a separate comb covered with sticky material is inserted between the disks. An advantage is that the delicate head suspension assembly is not altered or weighted with a debris collection device.

Embodiment five is very similar to embodiment four, except that instea...