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Browse Prior Art Database

New Disk Stack Method with Adhesive for Small Hard Disk Drive

IP.com Disclosure Number: IPCOM000103907D
Original Publication Date: 1993-Feb-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Ando, H: AUTHOR [+3]

Abstract

Disclosed is a new disk stack method using adhesive in assembling a small hard disk drive.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

New Disk Stack Method with Adhesive for Small Hard Disk Drive

      Disclosed is a new disk stack method using adhesive in
assembling a small hard disk drive.

      In general, disk stack using adhesive is useful to improve hard
disk drive performance and reliability because the distortion of disk
stack is minimum.  The disk distortion affects a head flying figure.
So the minimum disk distortion is very important to prevent a head
crash to the disk and to improve a read-write performance of magnetic
recording.  However, it is very difficult to deal with an adhesive in
the clean-room without pollution.

      In this article, adhesive is applied to the spindle motor hub
or spacer rings and pre-cured so that contaminating materials mostly
go away before it is brought into the clean-room.  Then in the
main-assembly clean room, the disk is stacked on the spindle motor
hub, and heat and pressure are applied to cure the adhesive perfectly
as shown in the figure.  Half-cured adhesive hardly contaminates the
clean-room.

      Therefore, it is possible to use the adhesive for disk stack of
hard disk drive assembly in the clean-room.