公开(公告)号：JPH11353865A

公开(公告)日：1999-12-24

申请号：JP13348599

申请日：1999-05-14

Applicant: IBM

Inventor： THOMAS ROBERT ALBRECHT ,  BIJAISHUWAA DAS KANNA ,  SURESH KUMAR ,  SRI MUSHZAMBI SREEJAYANZA

IPC: G11B33/12 ,  G11B25/04 ,  H04L25/03

Abstract: PROBLEM TO BE SOLVED: To provide a microminiature disc drive employing a tab base of sheet metal and plastic conformable to CompactFlash (trade mark) type II form factor and interface specifications. SOLUTION: A base 10 supports the components of a disc drive, i.e., a spindle motor with a loaded disc, a voice coil motor actuator fixed with a read/write head, and preamplifier/write driver electronic module. The composite base is a metal plate 12 having a flange extending on the periphery, and a plastic flame 14 surrounding the metal plate 12 while wrapping the flange. Since the metal plate 12 supporting the spindle motor and the voice coil motor actuator of the disc drive is made of a substance having high permeability and low coercive force, it can form a part of the magnetic circuit of the spindle motor and the actuator.