International Business Machines Corporation

Other

Western Digital Technologies, Inc.

Stormedia, Inc.

Hung-Chang W Huang

Cherngye Hwang

James K Howard

Atef H Eltoukhy

Paul A Totta

Edward F Teng

Nader Mahvan

Da-Yuan Shih

Charles Hampton Perry

Steven G Barbee

Robert Otto Schwenker

Ciuter Chang

Anthony W Wu

Jae M Park

Jungihl Kim

Jih-Ping Peng

Ji-Feng Ying

Masanori Murakami

Donald J Hunt

Charles J Kircher

Wolfgang M Goubau

James C Uy

An aspect of the invention can be regarded an air bearing slider for use in a disk drive including a rotatable magnetic disk. The slider includes a leading side and a trailing side. The slider further includes opposing lateral sides extending between the leading and trailing sides. The slider further includes a transducer pad disposed adjacent the trailing side. The transducer pad includes a transducer for reading and writing data from and to the magnetic disk. The slider further includes a pair of pressurized side pads each respectively disposed laterally between the transducer pad and a respective one of the lateral sides. Each side pad includes a forward shallow etched surface, a trailing shallow etched surface extending from adjacent the trailing side toward the leading side, and a side pad air bearing surface disposed between and above the forward and trailing shallow etched surfaces.

Air bearing slider including pressurized side pads with forward and trailing shallow etched surfaces

Thin film media characterized by the utilization of a substantially peritectic seed alloy layer which is sputter deposited so as to provide dispersed, substantially peritectic and homogenous globules underlying subsequently deposited media layers. These media layers may include a metal layer such as chrome and a magnetic layer such as an alloy of cobalt, chromium, and platinum and possibly other ingredients.

Magnetic recording medium having an intermediate layer comprising

A magnetic recording disk has an improved surface film formed on the disk blank. A sputter-deposited surface coating containing nickel, chromium and oxygen (Ni--Cr--O) is formed on a AlMg disk blank, after which a cobalt alloy magnetic layer is formed over the Ni--Cr--O coating and a protective overcoat is formed over magnetic layer. The use of the Ni--Cr--O coating on the disk blank eliminates the need for a wet electroless deposition process for creation of a surface coating and results in an inherent texturing of the subsequently deposited magnetic film and protective overcoat which conform to the surface texture of the sputter-deposited Ni--Cr--O. The disks made with the Ni--Cr--O surface film exhibit a very low static friction force between the air-bearing slider and the disk surface when the disks are used in contact start/stop (CSS) disk files.

Thin film magnetic recording disk comprising a metallic disk blank, a

Method for enhancing the magnetic and roughness properties of thin film

A magnetoresistive (MR) sensor having electrically conductive lead structures which are in electrical contact with the MR element at spaced positions. The lead structures comprise a thin film layer of body-centered-cubic tantalum which is separated from the MR element by a thin film seed layer formed of a material taken from the group consisting of TiW, TaW, Cr and W.

Magnetoresistive transducer having tantalum lead conductors

A method for forming contact studs to connect the substrate component devices to the overlying wiring patterns is disclosed herein. The contact studs are formed by a combination of blanket depositing an adhesive and reactive layer into the contact opening. Onto said adhesive and reactive layer is deposited a seed layer and said contact stud is completed by filling the contact opening with a third metal layer. Preferably, the adhesive and reactive layer is a transition metal and the seen and fillter layers are refractory metals.

Contact stud structure for semiconductor devices

A method for forming contact studs to connect the substrate component devices to the overlying wiring patterns is disclosed herein. The contact studs are formed by a combination of blanket depositing an adhesive and reactive layer into the contact opening. Onto said adhesive and reactive layer is deposited a seed layer and said contact stud is completed by filling the contact opening with a third metal layer. Preferably, the adhesive and reactive layer is a transistion metal and the seed and filler layers are refractory metals.

Process for improved contact stud structure for semiconductor devices

A magnetoresistive sensor having spaced electrically conductive lead structures comprising a thin film of tungsten having a thin film overlayer, or, alternatively a thin film underlayer and a thin film overlayer, with both the thin film underlayer and the thin film overlayer formed of a material taken from the groups consisting of Ti, Ta, Cr, Zr, Hf, and TiW.

Magnetoresistive read transducer

Strengthened ceramic and a method for increasing the mechanical strength of fully sintered ceramic articles, in particular alumina type ceramic and glass-ceramic articles. Such articles are strengthened by forming a compresssive material layer of amorphous silicon dioxide or refractory metal nitride on the surface of the article to be strengthened.

Strengthening a ceramic by post sinter coating with a compressive

Thin film electrodes particularly suited for Josephson devices of improved thermal cyclability are prepared by depositing thin films of superconductive metal and an intermetallic compound former on a substrate held at a temperature below about 100.degree. K. and at a pressure below about 1.times.10.sup.-7 Torr so that intermetallic compound formation occurs at the grain boundaries of the metal to inhibit grain growth. The thin film electrodes are characterized by median grain size &lt;100 nm.

Josephson devices of improved thermal cyclability and method

Growing community of inventors

San Jose, CA, United States of America

Hung-Chang W Huang