Methods for manufacturing a magnetoresistive structure utilizing heating and cooling

C Kaiser, Q Leng, M Pakala - US Patent 9,093,639, 2015 - Google Patents
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 …

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 …

Data storage system having an optical processing flying head

JF Heanuc, JP Wilde, JE Hurst Jr, JH Jerman - US Patent 6,781,927, 2004 - Google Patents
2. Background Art In data recording and retrieval Systems, using a moving media having a
varying material characteristic, detectable variations from previously encoded media …

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 …

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 …

Micro-mirror apparatus and production method therefor

R Sawada, E Higurashi, T Maruno - US Patent 6,431,714, 2002 - Google Patents
The micro-mirror apparatus of the invention has, a mirror 33, a plurality of torsion springs 35,
36 for supporting the mirror 33 so as to be tiltable relative to an upper substrate 27, a lower …

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 …

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 …

Method and system for reducing undesirable reflections in a HAMR write apparatus

A Krichevsky, CB Wolf, FD Bello, KE Ballantine… - US Patent …, 2016 - Google Patents
(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 …

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 …