公开(公告)号：SG45430A1

公开(公告)日：1998-01-16

申请号：SG1996007610

申请日：1996-04-03

Applicant: IBM

Inventor： STARKE STEVEN FRANCIS ,  AMUNDSON JOHN DAVID ,  PILTINGSRUD DOUGLAS HOWARD

IPC: C03C21/00 ,  G11B5/73 ,  G11B5/82 ,  G11B5/84 ,  G11B7/24 ,  G11B7/26 ,  G11B23/00 ,  G11B5/62

Abstract: An edge strengthened substrate of a data storage disk and a method for fabricating same is disclosed. A strengthening agent is preferably applied to selected portions of a disk-shaped glass substrate to increase the overall strength of the glass substrate. In one embodiment, a strengthening agent is preferably applied along an inner diameter portion of a disk-shaped glass substrate. A binder is preferably mixed with the strengthening agent to limit the mobility of the strengthening agent to the selected inner diameter portion of the substrate during the strengthening process. The glass substrate is then heated to a diffusion temperature for a sufficient duration of time to permit diffusion of the strengthening agent into the glass substrate. Selective application of a strengthening agent to an outer diameter portion of the glass substrate may be performed to further strengthen the glass substrate. Further application of a strengthening agent to an intermediate diameter surface portion of the glass substrate defined substantially between the inner and outer diameter portions may be performed to further increase the strength of the glass substrate.

公开(公告)号：SG44796A1

公开(公告)日：1997-12-19

申请号：SG1996007726

申请日：1996-04-01

Applicant: IBM

Inventor： STARCKE STEVEN FRANCIS ,  AMUNDSON JOHN DAVID ,  PILTINGSRUD DOUGLAS HOWARD ,  HAGAN JAMES ALOYSIUS

IPC: C23C18/28 ,  C03C17/36 ,  C04B41/52 ,  C23C18/18 ,  G11B5/66 ,  G11B5/73 ,  G11B5/738 ,  G11B5/84 ,  G11B23/00 ,  C23C18/36

Abstract: The invention is a method of plating a nonmetallic substrate comprising the steps of depositing an adhesion enhancing film on the substrate, treating the adhesion enhancing film to make the film catalytic, and forming an outer coating and passivating plate on the adhesion enhancing film. The resulting plated, nonmetallic substrates may comprise any number of materials used as an inner substrate such as compounds of oxide, nitride, phosphide, carbide, glass, ceramic, and mixtures thereof. In use, the resulting substrate may find application in any number of data storage and retrieval application.