Abstract: The present disclosure is directed to disk drives that have one or more disks and one or more additional disk drive components. The one or more disk can include a first lubricant composition. The one or more additional disk drive components can include a second lubricant composition that is miscible with the first lubricant composition. In some embodiments, the first lubricant composition and the second lubricant composition are the same.

Abstract: An apparatus for collecting condensed vapor during physical vapor deposition includes an enclosure configured to be placed adjacent to one or more vapor sources in a vacuum chamber. The enclosure includes an internal surface of the enclosure partially enclosing a volume of space configured to receive an object wherein the enclosure is maintained at a cooler temperature than the one or more vapor sources. The internal surface of the enclosure is coupled to one or more drainage gutters drainage drainage gutters.

Abstract: Compositions for use in lubricating thin film storage media are provided, as well as storage media formed using the compositions, the compositions including one or more central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein each arm comprises phenol or piperonyl. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.

Abstract: A compound of Formula (I) includes: [L]1-[N]n—OCH2CF2O(CF2CF2O)p(CF2O)qCF2CH2O—[M]m, where L is selected from the group consisting of (AA) M is selected from the group consisting of (BB) and N is (CC) where R1, R2, and R3 may be the same or different, and are selected from the group consisting of hydroxyl, phenyl, piperonyl, carboxylic acid, amide, 2,3-di-hydroxy-1-propoxyl, acetamide, methacrylate, methyl methacrylate and glycidyl ether; and where 1=0, 1, or 2, m=0, 1, or 2, n=1 or 2, and the ratio of p to q is from about 0.1 to 3.0.

Abstract: Apparatus and method for vapor deposition of a uniform thickness thin film of lubricant on at least one surface of a disk-shaped substrate. The invention has particular utility in depositing thin films of polymeric lubricants onto disc-shaped substrates in the manufacture of magnetic and MO recording media.

Abstract: Compositions including one or more a central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein the arms comprise perfluoropolyethers (PFPEs) or its derivatives. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.

Abstract: A compound comprising a backbone with a perfluoropolyether chain. The compound also has one or more cyclophosphazene rings attached to or incorporated into the backbone. The compound further includes at least two functional groups attached to the backbone, attached to the one or more cyclophosphazene rings, or a combination thereof.

Abstract: Apparatus and method for vapor deposition of a uniform thickness thin film of lubricant on at least one surface of a disk-shaped substrate. The invention has particular utility in depositing thin films of polymeric lubricants onto disc-shaped substrates in the manufacture of magnetic and MO recording media.

Abstract: Compositions including one or more a central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein the arms comprise perfluoropolyethers (PFPEs) or its derivatives. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.

Abstract: An apparatus for collecting condensed vapor during physical vapor deposition includes an enclosure configured to be placed adjacent to one or more vapor sources in a vacuum chamber. The enclosure includes an internal surface of the enclosure partially enclosing a volume of space configured to receive an object wherein the enclosure is maintained at a cooler temperature than the one or more vapor sources. The internal surface of the enclosure is coupled to one or more drainage gutters drainage drainage gutters.

Abstract: Compositions for use in lubricating thin film storage media are provided, as well as storage media formed using the compositions, the compositions including one or more central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein each arm comprises phenol or piperonyl. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.

Abstract: A magnetic recording medium comprising a lubricant film comprising a photosynthesized lubricant having a single phase composition of at least a lubricant moiety and an additive moiety is disclosed.

Abstract: A lubricant for improving the durability and reliability of recording media used in hard drives is disclosed. The lubricant comprises a perfluoropolyether main chain with a first end attached to a hexa(trifluoromethylphenoxy)cyclotriphosphazene, a second end attached to a bonding enhancer for enhancing bonding between the lubricant and a carbon-containing layer. The bonding enhancer of the lubricant can contain multiple hydroxyl, amide groups, 2,3-dihydroxy-1-propoxyl, acetamide, methacrylate, methyl methacrylate and glycidyl ether. Some bonding enhancers such as methacrylate, methyl methacrylate or glycidyl ether, can be further activated with ultraviolet light.

Abstract: A method of forming a granular magnetic recording medium comprises etching a cap layer disposed on a granular magnetic recording layer. The etching process is carried out at a varying ion energy, including a first ion energy and a lower subsequent second energy. A device including the etched cap layer is also disclosed.

Abstract: A data/information storage and retrieval medium comprises: (a) a substrate having a layer stack thereon, the layer stack including an outer surface and comprising at least one magnetic or magneto-optical (“MO”) recording layer; and (b) a thin film or layer of a lubricant on the outer surface of the layer stack and comprised of a derivatized perfluoropolyether-based material including at least one generally linear perfluoropolyether chain and at least one phosphite antioxidant/stabilizer moiety attached to at least one end of at least one the chain.

Abstract: A composition comprising a mixture of a low profile lubricant and a compound comprising one or more cyclophosphazene rings. The low profile lubricant comprises a perfluoropolyether backbone, at least one functional group on each end of the backbone and at least one functional group located in a region of the backbone between the ends. Also a device comprising a magnetic disk and the composition on the magnetic disk.

Abstract: Processing equipment for manufacturing magnetic recording medium comprising a chamber, a micro-dispensing valve that can open for a minimum time of less than a few microseconds and can dispense a liquid in an amount of a micro-liter or less each time that the micro-dispensing valve is opened, wherein the liquid comprising a lubricant and a solvent different from the lubricant is dispensed through the micro-dispensing valve.

Abstract: The invention relates to a magnetic recording medium having a solid lubricant film layer which is deposited by plasma-enhanced chemical vapor deposition. The solid lubricant film comprises a perfluoropolyether, which is formed by the polymerization of a perfluorocycloalkane.

Abstract: A compound comprising a backbone with a perfluoropolyether chain. The compound also has one or more cyclophosphazene rings attached to or incorporated into the backbone. The compound further includes at least two functional groups attached to the backbone, attached to the one or more cyclophosphazene rings, or a combination thereof.

Abstract: A lubricant for improving the durability and reliability of recording media used in hard drives is disclosed. The lubricant comprises a perfluoropolyether main chain with a first end attached to a hexa(trifluoromethylphenoxy)cyclotriphosphazene, a second end attached to a bonding enhancer for enhancing bonding between the lubricant and a carbon-containing layer. The bonding enhancer of the lubricant can contain multiple hydroxyl, amide groups, 2,3-dihydroxy-1-propoxyl, acetamide, methacrylate, methyl methacrylate and glycidyl ether. Some bonding enhancers such as methacrylate, methyl methacrylate or glycidyl ether, can be further activated with ultraviolet light.