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Apparatus for manufacturing magnetic recording disk, and in-line type substrate processing apparatus

a technology of magnetic recording disk and processing apparatus, which is applied in the direction of magnetic layer protection, vacuum evaporation coating, transportation and packaging, etc., can solve the problems of abnormal film growth, affecting the adhesion strength of the lubricant layer, and increasing the demands of the manufacturing process

Inactive Publication Date: 2005-05-19
CANON ANELVA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018] To accomplish this object, the invention presents a method and an apparatus for manufacturing a magnetic recording disk, where steps from magnetic-film deposition to lubricant-layer preparation are carried out without breaking vacuum. The invention also presents a method and an apparatus for manufacturing a magnetic recording disk, where a substrate is cleaned prior to lubricant-layer preparation. The invention also presents a method and an apparatus for manufacturing a magnetic recording disk, where burnishing is carried out in vacuum after magnetic-film deposition. The invention also presents a method and an apparatu...

Problems solved by technology

As the spacing S becomes smaller, demands to the manufacturing process have been becoming severer by years.
In addition, minute protrusions are easily formed on the overcoat 92 in the CVD method, resulting from abnormal film growth.
If the lubricant layer 93 is prepared over the overcoat 92 on which the contaminants or the protrusions exist, there easily arise problems such as the adhesion strength of the lubricant layer 93 may decrease, and the thickness of the lubricant layer 93 may lose uniformity.
If the contaminated layer is formed, it may become difficult to obtain an accurate bonded ratio by the post-preparation treatment.
Including such a point, the current situation is that huge investment is inevitable for coordinating manufacture environment.

Method used

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  • Apparatus for manufacturing magnetic recording disk, and in-line type substrate processing apparatus
  • Apparatus for manufacturing magnetic recording disk, and in-line type substrate processing apparatus
  • Apparatus for manufacturing magnetic recording disk, and in-line type substrate processing apparatus

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second embodiment

[0145] Next is described a magnetic disk manufacturing apparatus of the invention.

[0146]FIG. 15 shows a main part of the magnetic recording disk manufacturing apparatus of the second embodiment. The apparatus shown in FIG. 15 is different from the described first embodiment in the composition of the plasma-enhanced ashing to clean the substrate 9. Concretely, in the embodiment shown in FIG. 15, the ashing is carried out in the overcoat deposition chamber 15. FIG. 15 shows components on the overcoat deposition chamber 15.

[0147] The components on the overcoat deposition chamber 15 are nearly the same as those in FIG. 6, except the gas-introduction system 152. The gas-introduction 152 shown in FIG. 15 can introduce a gas mixture of carbon hydride and hydrogen, or an oxygen gas selectively to the overcoat chamber 15.

[0148] In FIG. 15, when an overcoat is deposited, a gas mixture of hydrocarbon and hydrogen is introduced. After the overcoat deposition, without moving the first substrat...

first embodiment

[0157] Description about the rotation mechanism 8 and the burnishing tape 212 are omitted because those are the same as in the described The lubricant coater 213 is mainly composed of an ejector 214 ejecting the lubricant from a tip thereof, a feeding tube 215 connected with the ejector 214, and a pump (not shown) that feeds the lubricant from a lubricant storing vessel (not shown) to the ejector 214 through the feeding tube 215. The lubricant coater 213 is provided at each side of the substrate location.

[0158] An operation of the burnishing-preparation chamber 210 is described.

[0159] In a state that the burnishing-preparation chamber 210 is pumped to obtain a specific vacuum pressure, the second substrate holder 52 holding the substrates 9 is moved into the burnishing-preparation chamber 210 and is stopped at a specific position. Then, the rotation mechanism 8 holds one of the substrates 9 and rotates it. During this rotation, the pressure members 247 at both sides of the substra...

fourth embodiment

[0175] Though the surface of the burnishing tape 242 is cleaned by the ion beam in this embodiment, it is possible to clean it by plasma or laser. It is also possible to clean the surface of the burnishing tape 242 using the method in the

[0176] Next is described about an in-line type substrate processing apparatus of an embodiment of the invention. The magnetic-recording disk manufacturing apparatus shown in FIG. 1 is concurrently an in-line type substrate processing apparatus. The apparatus comprises a plurality of vacuum chambers 10-17, 20-29 connected along two circumventive transfer paths 1, 2, and the shifting robot 63 that transfers the substrate 9 in vacuum without exposing the substrate 9 to the atmosphere along the third transfer path 3 that interconnects the first path 1 and the second path 2.

[0177] The described structure is a kind of circumventive in-line type apparatus. U.S. Pat. No. 5,846,328 discloses the same kind of apparatus. This type of apparatus has a merit tha...

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Abstract

An apparatus for manufacturing a magnetic recording disk includes a magnetic-film deposition chamber in which a magnetic film for a recording layer is deposited on a substrate; a lubricant-layer preparation chamber in which a lubricant layer is prepared on the substrate in vacuum; and a cleaning chamber in which the substrate is cleaned in vacuum after the magnetic-film deposition in the magnetic-film chamber and before the lubricant-layer preparation in the lubricant-layer chamber. The apparatus may further include a transfer system that transfers the substrate from the cleaning chamber to the lubricant-layer preparation chamber without exposing the substrate to the atmosphere.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This is a divisional application of a patent application Ser. No. 10 / 405,487 filed on Apr. 3, 2003, which is a divisional application of a patent application Ser. No. 09 / 774,887, filed on Feb. 1, 2001.BACKGROUND OF THE INVENTION AND RELATED ART STATEMENT [0002] This invention relates to an apparatus for manufacturing magnetic recoding disks. Especially, this invention relates to an apparatus performing a manufacturing method including a step of removing protrusions on a substrate and a step of forming a lubricant film on the substrate. [0003] The manufacture of a magnetic recording disk such as a hard disk is roughly divided into former steps and latter steps. The former steps include deposition of an underlying film, deposition of a magnetic film for a recording layer, and deposition of an overcoat. The latter steps include preparation of a lubricant layer and other required steps. The lubricant layer is prepared considering contact of ...

Claims

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Application Information

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IPC IPC(8): G11B5/84
CPCC23C14/352C23C14/50G11B5/8408C23C16/26G11B5/84C23C14/568Y10S414/135Y10S414/136Y10S414/137Y10S414/138Y10S414/139Y10S414/14Y10S414/141
Inventor WATANABE, NAOKIWATANABE, NOBUYOSHITANI, KAZUNORIFURUKAWA, SHINJISASAKI, HIROMIWATABE, OSAMU
Owner CANON ANELVA CORP
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