Methods for manufacturing a magnetoresistive structure utilizing heating and cooling
This invention describes a novel tunnel magnetoresistive (TMR) deposition process that can
enhance the signal-to-noise ratio (SNR) of a TMR reader. A method of manufacturing a …
enhance the signal-to-noise ratio (SNR) of a TMR reader. A method of manufacturing a …
Double patterning hard mask for damascene perpendicular magnetic recording (PMR) writer
X Xiang, YF Li, J Zhang, H Yuan, X Zeng… - US Patent …, 2015 - Google Patents
Various embodiments of the subject disclosure provide a double patterning process that
uses two patterning steps to produce a write structure having a nose shape with sharp …
uses two patterning steps to produce a write structure having a nose shape with sharp …
Differential dual free layer magnetic reader
D Mauri, S Gider, H Zhao - US Patent 9,472,216, 2016 - Google Patents
CPC........... GIIB 5/3932 (2013.01); GIIB 5/3912 (2013.01)(57) ABSTRACT (58) Field of
Classification Search A magnetic read apparatus has an air-bearing Surface (ABS) None …
Classification Search A magnetic read apparatus has an air-bearing Surface (ABS) None …
Methods of forming semiconductor devices including tunnel barrier materials
M Siddik, W Kula, S Ramarajan - US Patent 10,439,131, 2019 - Google Patents
A semiconductor device comprises an array of magnetic cell structures each comprising a
magnetic tunnel junction over an electrode on a substrate. Each of the magnetic tunnel …
magnetic tunnel junction over an electrode on a substrate. Each of the magnetic tunnel …
Memory cells, methods of fabrication, and memory devices
M Siddik, W Kula - US Patent 10,454,024, 2019 - Google Patents
A magnetic cell includes a magnetic region formed from a precursor magnetic material. The
precursor magnetic material included a diffusible species and at least one other species. An …
precursor magnetic material included a diffusible species and at least one other species. An …
Write transducer having a magnetic buffer layer spaced between a side shield and a write pole by non-magnetic layers
F Liu, Z Li - US Patent 9,111,550, 2015 - Google Patents
A write transducer for a disk drive magnetic head includes a ferromagnetic write yoke having
a write pole protruding towards an air bearing surface. The write transducer also includes a …
a write pole protruding towards an air bearing surface. The write transducer also includes a …
Dual free layer magnetic reader having a rear bias structure having a high aspect ratio
D Mauri, S Gider, H Zhao, M Mao - US Patent 9,449,621, 2016 - Google Patents
(57) ABSTRACT A magnetic read apparatus has an air-bearing surface (ABS) and includes
a read sensor and a rear magnetic bias structure. The read sensor includes first and second …
a read sensor and a rear magnetic bias structure. The read sensor includes first and second …
Heat assisted magnetic recording head having a plurality of diffusion barrier layers
K Vossough, MA Finot, J Love, MR Gibbons… - US Patent …, 2016 - Google Patents
GIIB II/00(2006.01)(57) ABSTRACT GIIB 5/48(2006.01) GIB 5/27(2006.01) A heat assisted
magnetic recording (HAMR) writer is GI IB5/OO(2006.01) described. The HAMR writer is …
magnetic recording (HAMR) writer is GI IB5/OO(2006.01) described. The HAMR writer is …
Method and system for reducing undesirable reflections in a HAMR write apparatus
(57) ABSTRACT A heat-assisted magnetic recording (HAMR) write appara tus is coupled
with a laser that provides energy. The HAMR write apparatus includes a pole, at least one …
with a laser that provides energy. The HAMR write apparatus includes a pole, at least one …
Gradient write gap for perpendicular magnetic recording writer
L Zeng, D Han, Z Bai, L Wang - US Patent 9,042,051, 2015 - Google Patents
The present disclosure provides for a magnetic writer pole for use in a hard drive. The
magnetic writer pole comprises a first bevel formed by a non-magnetic layer, the first bevel …
magnetic writer pole comprises a first bevel formed by a non-magnetic layer, the first bevel …