公开(公告)号：DE69313429D1

公开(公告)日：1997-10-02

申请号：DE69313429

申请日：1993-11-19

Applicant: IBM

Inventor： GREGORY THOMAS ALLEN ,  KELLER CHRISTOPHER GUILD ,  HAGAN JAMES ALOYSIUS

IPC: G11B33/12 ,  G11B17/32 ,  G11B19/02 ,  G11B25/04 ,  G11B33/14 ,  G11B5/71 ,  G11B5/72 ,  G11B23/50

Abstract: The disk drive assembly has a disk assembly and a transducer carrying actuator which are surrounded by a housing and a lubricant film is maintained on the recording surfaces of the disk. A lubricant reservoir is positioned close to the disk recording surface, and a heater element is mounted in heat transfer relationship with the reservoir. A sensor determines the thickness of the lubricant film on the disk recording surface. A controller governs the power delivered to the heating element w.r.t. the lubricant film thickness determined by the sensor. A recirculating device captures lubricant that collects within the housing and returns it to the lubricant reservoir. The recirculator includes a wick structure that extends from a housing location where lubricant collects to the reservoir. The reservoir is planar and overlies the disk data surface with a separation not exceeding 500 microns.

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.

公开(公告)号：SG47370A1

公开(公告)日：1998-04-17

申请号：SG1995002236

申请日：1994-12-20

Applicant: IBM

Inventor： HARTOG VAN DEN BRENT ,  FOX DENNIS LEONARD ,  HAGAN JAMES ALOYSIUS ,  SHEN JOHN CHEN ,  VISWANATHAN KANNIMAGNLAM V

IPC: B24B37/00 ,  C23F1/16 ,  G01Q60/00 ,  G11B5/73 ,  G11B5/82 ,  G11B5/84 ,  H01L21/304

公开(公告)号：DE69313429T2

公开(公告)日：1998-02-26

申请号：DE69313429

申请日：1993-11-19

Applicant: IBM

Inventor： GREGORY THOMAS ALLEN ,  KELLER CHRISTOPHER GUILD ,  HAGAN JAMES ALOYSIUS

IPC: G11B33/12 ,  G11B17/32 ,  G11B19/02 ,  G11B25/04 ,  G11B33/14 ,  G11B5/71 ,  G11B5/72 ,  G11B23/50

Abstract: The disk drive assembly has a disk assembly and a transducer carrying actuator which are surrounded by a housing and a lubricant film is maintained on the recording surfaces of the disk. A lubricant reservoir is positioned close to the disk recording surface, and a heater element is mounted in heat transfer relationship with the reservoir. A sensor determines the thickness of the lubricant film on the disk recording surface. A controller governs the power delivered to the heating element w.r.t. the lubricant film thickness determined by the sensor. A recirculating device captures lubricant that collects within the housing and returns it to the lubricant reservoir. The recirculator includes a wick structure that extends from a housing location where lubricant collects to the reservoir. The reservoir is planar and overlies the disk data surface with a separation not exceeding 500 microns.

公开(公告)号：DE3578101D1

公开(公告)日：1990-07-12

申请号：DE3578101

申请日：1985-11-19

Applicant: IBM

Inventor： HAGAN JAMES ALOYSIUS ,  MALOY JAMES EDWARD ,  WILKE MYRON ANDEN WILHUR

IPC: B05C11/08 ,  B05D1/00 ,  B05D1/40 ,  G11B5/842

Abstract: A rigid magnetic disk substrate (18) is spin coated using a closely confining, stationary air barrier adjacent the surface being coated. The coating is applied through a slotted opening in the air barrier which is progressively closed as the coating is applied and completely sealed during the spin-off operation. During the application of the coating, the air barrier is positioned approximately 3,8 mm from the disk substrate surface and prior to spin-off, the barrier is moved to a position 0,6 mm from the coated surface. Further, during the high speed spin-off cycle a high kinematic viscosity gas, such as helium, is introduced into the space between the barrier and the coated surface to establish a laminar flow condition and eliminate spoking of the coated material.