Seagate Technology Incorporated

Raytheon Technologies Corporation

United Technologies Corporation

Raytheon Technoiogies Corporation

Andrew Joseph Boyne

Joseph V Mantese

John Joseph Marcin

David Ulrich Furrer

James Tilsley Auxier

Kurt W Wierman

Ryan C Breneman

Dustin Wayne Davis

Thomas Anthony Rebbecchi

Michael Allen Seigler

Yuhang Cheng

Scott Michael Franzen

Ed F Rejda

Michael C Kautzky

Tong Zhao

Sethuraman Jayashankar

Joel William Hoehn

Jie Gong

Daniel Richard Buettner

Amy Jo Bergerud

The present disclosure includes methods of using a sacrificial, protective head overcoat during the manufacture of sliders. In some embodiments, the final trailing edge topography of the transducer devices is formed before applying the sacrificial, protective head overcoat. In some embodiments, the final trailing edge topography of the transducer devices is formed after removing the sacrificial, protective head overcoat.

Method of forming one or more sliders

Methods of manufacturing one or more sliders, and related sliders

A process for directional solidification of a cast part comprises energizing a primary inductive coil coupled to a chamber having a mold containing a material; energizing a primary inductive coil within the chamber to heat the mold via radiation from a susceptor, wherein the resultant electromagnetic field partially leaks through the susceptor coupled to the chamber between the primary inductive coil and the mold; determining a magnetic flux profile of the electromagnetic field; sensing a magnetic flux leakage past the susceptor within the chamber; generating a control field from a secondary compensation coil coupled to the chamber, wherein the control field controls the magnetic flux experienced by the cast part; and casting the material within the mold under the controlled degree of flux leakage.

Method for magnetic flux compensation in a directional solidification furnace utilizing a stationary secondary coil

A process for directional solidification of a cast part comprises energizing a primary inductive coil coupled to a chamber having a mold containing a material; generating an electromagnetic field with the primary inductive coil within the chamber, wherein said electromagnetic field is partially attenuated by a susceptor coupled to said chamber between said primary inductive coil and said mold; determining a magnetic flux profile of the electromagnetic field after it passes through the susceptor; sensing a component of the magnetic flux in the interior of the susceptor proximate the mold; positioning a mobile secondary compensation coil within the chamber; generating a control field from a secondary compensation coil, wherein said control field controls said magnetic flux; and casting the material within the mold.

Method for magnetic flux compensation in a directional solidification furnace utilizing an actuated secondary coil

An induction furnace assembly comprising a chamber having a mold; a primary inductive coil coupled to the chamber; a layered susceptor comprising at least two layers of magnetic field attenuating material surrounding the chamber between the primary inductive coil and the mold to nullify the electromagnetic field in the hot zone of the furnace chamber.

Multi-layer susceptor design for magnetic flux shielding in directional solidification furnaces

Devices having an air bearing surface (ABS), the devices include a write pole; a near field transducer (NFT) including a peg and a disc, wherein the peg is at the ABS of the device; an overcoat, the overcoat including a low surface energy layer.

Devices including metal layer

An induction furnace assembly comprising a chamber having a mold; a primary inductive coil coupled to the chamber; a susceptor surrounding the chamber between the primary inductive coil and the mold; and a shield material contained in a reservoir coupled to or proximate the mold between the susceptor and the mold; the shield material configured to attenuate a portion of an electromagnetic flux generated by the primary induction coil that is not attenuated by the susceptor.

Separate vessel metal shielding method for magnetic flux in directional solidification furnace

A device that includes a near field transducer (NFT), the NFT having a disc and a peg, and the peg having an air bearing surface thereof; and at least one adhesion layer positioned on at least the air bearing surface of the peg, the adhesion layer including one or more of platinum (Pt), iridium (Ir), ruthenium (Ru), rhodium (Rh), palladium (Pd), yttrium (Y), chromium (Cr), nickel (Ni), and scandium (Sc).

Devices including at least one adhesion layer and methods of forming adhesion layers

Devices that include a near field transducer (NFT), the NFT having a disc and a peg, and the peg having an air bearing surface; and at least one adhesion layer positioned on the air bearing surface of the peg, the adhesion layer including one or more of the following: tungsten (W), molybdenum (Mo), chromium (Cr), silicon (Si), nickel (Ni), tantalum (Ta), titanium (Ti), yttrium (Y), vanadium (V), magnesium (Mg), cobalt (Co), tin (Sn), niobium (Nb), hafnium (Hf), and combinations thereof; tantalum oxide, titanium oxide, tin oxide, indium oxide, and combinations thereof; vanadium carbide (VC), tungsten carbide (WC), titanium carbide (TiC), chromium carbide (CrC), cobalt carbide (CoC), nickel carbide (NiC), yttrium carbide (YC), molybdenum carbide (MoC), and combinations thereof and titanium nitride (TiN), zirconium nitride (ZrN), hafnium nitride (HfN), and combinations thereof.

Devices that include a near field transducer (NFT), the NFT having a disc and a peg, and the peg having five surfaces thereof; and at least one adhesion layer positioned on at least one of the five surfaces of the peg, the adhesion layer including one or more of the following: rhenium, osmium, iridium, platinum, hafnium, ruthenium, technetium, rhodium, palladium, beryllium, aluminum, manganese, indium, boron, and combinations thereof beryllium oxide, silicon oxide, iron oxide, zirconium oxide, manganese oxide, cadmium oxide, magnesium oxide, hafnium oxide, and combinations thereof tantalum carbide, uranium carbide, hafnium carbide, zirconium carbide, scandium carbide, manganese carbide, iron carbide, niobium carbide, technetium carbide, rhenium carbide, and combinations thereof chromium nitride, boron nitride, and combinations thereof.

Growing community of inventors

West Hartford, CT, United States of America

Andrew Joseph Boyne