摘要:
Embodiments of the invention provide a manufacturing method which permits a high quality perpendicular magnetic recording medium to be manufactured with a high yield by preventing abnormal discharge which sputters particles from the target. In one embodiment, while the perpendicular magnetic recording medium is formed, DC pulses are applied to the target. During the reversal period (Reversal Time) between sputtering periods, a voltage of the opposite polarity is applied. During the sputtering period, a negative voltage is applied which biases the target surface to a negative potential, causing Ar+ to collide with and sputter CoCrPt and SiO2 for deposition on the intermediate layer. The top surface of the insulation material (SiO2) on the target is charged by Ar+ to have a voltage larger than the target voltage. However, arcing can be prevented since the charge on the surface of the insulation material is neutralized due to a positive voltage applied to the target during the non-sputtering period.
摘要:
Embodiments of the invention provide a manufacturing method which permits a high quality perpendicular magnetic recording medium to be manufactured with a high yield by preventing abnormal discharge which sputters particles from the target. In one embodiment, while the perpendicular magnetic recording medium is formed, DC pulses are applied to the target. During the reversal period (Reversal Time) between sputtering periods, a voltage of the opposite polarity is applied. During the sputtering period, a negative voltage is applied which biases the target surface to a negative potential, causing Ar+ to collide with and sputter CoCrPt and SiO2 for deposition on the intermediate layer. The top surface of the insulation material (SiO2) on the target is charged by Ar+ to have a voltage larger than the target voltage. However, arcing can be prevented since the charge on the surface of the insulation material is neutralized due to a positive voltage applied to the target during the non-sputtering period.
摘要:
A magnetic recording medium having excellent fly-ability and corrosion resistance is provided in a high yield by controlling protuberant on a medium surface caused by deposition of giant silicon oxide particles, which are created during the film deposition of a granular recording layer including Si and oxygen. In one embodiment of the invention, a recording layer is deposited by a sputtering method using a target which is composed of a mixture of an alloy including at least Co and powdered crystalline SiO2.
摘要:
A perpendicular magnetic recording medium is manufactured having excellent thermal stability and recording performances across the entire disk surface. In one embodiment, the recording layer includes at least two layers deposited by using a reactive sputtering method under an oxygen-containing atmosphere at a deposition rate larger than the second recording layer which is formed on the first recording layer while depositing the first recording layer on the intermediate layer.
摘要:
A perpendicular magnetic recording medium is manufactured having excellent thermal stability and recording performances across the entire disk surface. In one embodiment, the recording layer includes at least two layers deposited by using a reactive sputtering method under an oxygen-containing atmosphere at a deposition rate larger than the second recording layer which is formed on the first recording layer while depositing the first recording layer on the intermediate layer.
摘要:
A magnetic recording medium having excellent fly-ability and corrosion resistance is provided in a high yield by controlling protuberant on a medium surface caused by deposition of giant silicon oxide particles, which are created during the film deposition of a granular recording layer including Si and oxygen. In one embodiment of the invention, a recording layer is deposited by a sputtering method using a target which is composed of a mixture of an alloy including at least Co and powdered crystalline SiO2.
摘要:
An ultraviolet light generating target 20 includes a substrate 21 made of sapphire, quartz, or rock crystal; and a light-emitting layer 22 that is provided on the substrate 21 and that generates ultraviolet light upon receiving an electron beam. The light-emitting layer 22 includes powdered or granular Pr:LuAG crystals. By using such a light-emitting layer 22 as the target, the ultraviolet light generating efficiency can be increased more remarkably than when a Pr:LuAG single crystal film is used.
摘要:
According to one embodiment, an information processing apparatus with a display includes a wireless transfer module configured to receive an input operation request from an input operation module by use of a close proximity wireless transfer, and a controller configured to be connected to an external apparatus via the close proximity wireless transfer module, and to transit a mouse cursor displayed on the display to a display of the external apparatus in order to control the mouse cursor displayed on the display of the external apparatus with the information processing apparatus as a master.
摘要:
A document referencing computer applying relationships or links between documents, wherein the documents are managed by a document managing computer, and the relationships or links are managed by a knowledge managing computer. The display of the links is controlled according to a variety of conditions. The display of a respective link between documents can be controlled by either a user who sets the respective link (the link setting user) or by a user using the document referencing computer to reference documents(a referencing user), thereby enabling related documents to be referenced easily.
摘要:
A protective film having a very low coefficient of friction, a good wear resistance, a good adhesion, and prolonged lubricating and moisture-resistant properties is formed on a substrate by sputtering of a target consisting of at least one of organic polymers and at least one of boron compounds.