公开(公告)号：SG53020A1

公开(公告)日：1998-09-28

申请号：SG1997002634

申请日：1997-07-25

Applicant: IBM

Inventor： BAREBOIM MICHAEL ,  BAUMGART PETER MICHAEL ,  CHRUSCH PETER PAUL ,  HARPER BENNY MICHAEL ,  KARNI BENJAMIN ,  KERSTENS PIETER J M ,  KRAJNOVICH DOUG JOHN ,  POUR IRAJ KAHKESH ,  SEING HONG S ,  TAM ADREW CHING

IPC: C04B41/80 ,  C03C23/00 ,  G11B5/84

Abstract: A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power control optics block includes means for attenuating and measuring each of the two beams. A shuttling mirror directs these two beams alternately at a disk within each of the two disk handling stations.