P

Inventor

HAN CHERNG CHYI

US120 patents
⚠️ This page may combine multiple inventors who share the name “HAN CHERNG CHYI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HEADWAY TECHNOLOGIES INC

42 patents
US7390529B2Jun 24, 2008

Free layer for CPP GMR having iron rich NiFe

HEADWAY TECHNOLOGIES INC67 citations98
US7335960B2Feb 26, 2008

MRAM cell with flat topography and controlled bit line to free layer distance and method of manufacture

HEADWAY TECHNOLOGIES INC100 citations98
US7331100B2Feb 19, 2008

Process of manufacturing a seed/AFM combination for a CPP GMR device

HEADWAY TECHNOLOGIES INC57 citations98
US6322640B1Nov 27, 2001

Multiple thermal annealing method for forming antiferromagnetic exchange biased magnetoresistive (MR) sensor element

HEADWAY TECHNOLOGIES INC59 citations96
US6103136AAug 15, 2000

Method for forming a soft adjacent layer (SAL) magnetoresistive (MR) sensor element with transversely magnetically biased soft adjacent layer (SAL)

HEADWAY TECHNOLOGIES INC62 citations96
US7016165B2Mar 21, 2006

Abutted junction GMR read head with an improved hard bias layer and a method for its fabrication

HEADWAY TECHNOLOGIES INC24 citations93
US6969895B2Nov 29, 2005

MRAM cell with flat topography and controlled bit line to free layer distance and method of manufacture

HEADWAY TECHNOLOGIES INC26 citations93
US6785954B2Sep 7, 2004

Method for fabricating lead overlay (LOL) on the bottom spin valve GMR read sensor

HEADWAY TECHNOLOGIES INC23 citations93
US6668443B2Dec 30, 2003

Process for manufacturing a spin valve recording head

HEADWAY TECHNOLOGIES INC19 citations93
US6632474B1Oct 14, 2003

Robust hard bias/conductor lead structures for future GMR heads

HEADWAY TECHNOLOGIES INC23 citations93
US6524491B1Feb 25, 2003

Double plate-up process for fabrication of composite magnetoresistive shared poles

HEADWAY TECHNOLOGIES INC49 citations93
US6504677B1Jan 7, 2003

Multi-layer stitched write head design for high data rate application

HEADWAY TECHNOLOGIES INC27 citations93
US6496333B1Dec 17, 2002

Dual stripe magnetoresistive (DSMR) head with co-extensive magnetoresistive (MR)/dielectric/magnetoresistive (MR) stack layer edges

HEADWAY TECHNOLOGIES INC24 citations93
US6449131B2Sep 10, 2002

Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof

HEADWAY TECHNOLOGIES INC37 citations93
US6393692B1May 28, 2002

Method of manufacture of a composite shared pole design for magnetoresistive merged heads

HEADWAY TECHNOLOGIES INC35 citations93
US6358635B1Mar 19, 2002

Magnetic recording sensor with stabilizing shield

HEADWAY TECHNOLOGIES INC33 citations93
US6007731ADec 28, 1999

Soft adjacent layer (SAL) magnetoresistive (MR) sensor element with electrically insulated soft adjacent layer (SAL)

HEADWAY TECHNOLOGIES INC20 citations93
US5985162ANov 16, 1999

Method for forming soft adjacent layer (SAL) magnetoresistive (MR) sensor element with electrically insulated soft adjacent layer (SAL)

HEADWAY TECHNOLOGIES INC26 citations93
US5874010AFeb 23, 1999

Pole trimming technique for high data rate thin film heads

HEADWAY TECHNOLOGIES INC59 citations93
US5684658ANov 4, 1997

High track density dual stripe magnetoresistive (DSMR) head

HEADWAY TECHNOLOGIES INC46 citations93
US8031433B2Oct 4, 2011

Method to make an integrated side shield PMR head with non conformal side gap

HEADWAY TECHNOLOGIES INC25 citations92
US7979978B2Jul 19, 2011

Method for manufacturing a self-aligned full side shield PMR

HEADWAY TECHNOLOGIES INC23 citations92
US7978431B2Jul 12, 2011

Method to make a perpendicular magnetic recording head with a bottom side shield

HEADWAY TECHNOLOGIES INC20 citations92
US7898773B2Mar 1, 2011

Perpendicular magnetic recording head with a side write shield

HEADWAY TECHNOLOGIES INC26 citations92
US6857180B2Feb 22, 2005

Method for fabricating a patterned synthetic longitudinal exchange biased GMR sensor

HEADWAY TECHNOLOGIES INC33 citations92
US6591480B1Jul 15, 2003

Process for fabricating a flux concentrating stitched head

HEADWAY TECHNOLOGIES INC26 citations92
US6493926B2Dec 17, 2002

Bi-layer lift-off process for high track density GMR head

HEADWAY TECHNOLOGIES INC35 citations92
US6383574B1May 7, 2002

Ion implantation method for fabricating magnetoresistive (MR) sensor element

HEADWAY TECHNOLOGIES INC46 citations92
US6243939B1Jun 12, 2001

High ion beam etch selectivity for partial pole trim application

HEADWAY TECHNOLOGIES INC46 citations92
US7154708B2Dec 26, 2006

Thermal protrusion reduction in magnet heads by utilizing a heat-spreading pad

HEADWAY TECHNOLOGIES INC23 citations91
US6129957AOct 10, 2000

Method of forming a second antiferromagnetic exchange-coupling layer for magnetoresistive (MR) and giant MR (GMR) applications

HEADWAY TECHNOLOGIES INC37 citations91
US6415500B1Jul 9, 2002

Method to prevent electrostatic discharge for MR/GMR wafer fabrication

HEADWAY TECHNOLOGIES INC34 citations90
US6024886AFeb 15, 2000

Planarizing method for fabricating an inductive magnetic write head for high density magnetic recording

HEADWAY TECHNOLOGIES INC36 citations90
US5878481AMar 9, 1999

Pole trimming method for fabricating a magnetic transducer structure

HEADWAY TECHNOLOGIES INC39 citations90
US6003223ADec 21, 1999

Common alignment target image field stitching method for step and repeat alignment in photoresist

HEADWAY TECHNOLOGIES INC45 citations85
US8379347B2Feb 19, 2013

Perpendicular shield pole writer with tapered main pole and tapered non-magnetic top shaping layer

HEADWAY TECHNOLOGIES INC14 citations84
US7773341B2Aug 10, 2010

Laminated film for head applications

HEADWAY TECHNOLOGIES INC15 citations84
US7646568B2Jan 12, 2010

Ultra thin seed layer for CPP or TMR structure

HEADWAY TECHNOLOGIES INC9 citations84
US7307815B2Dec 11, 2007

Method for making a perpendicular magnetic recording write head with a self aligned stitched write shield

HEADWAY TECHNOLOGIES INC10 citations84
US7221539B2May 22, 2007

Stitched shielded pole structure for a perpendicular magnetic recording write head

HEADWAY TECHNOLOGIES INC17 citations84
US6960281B2Nov 1, 2005

Method to make a wider trailing pole structure by self-aligned pole trim process

HEADWAY TECHNOLOGIES INC12 citations84
US6469875B1Oct 22, 2002

Stitched write head design having a sunken shared pole

HEADWAY TECHNOLOGIES INC15 citations84

HEADWAY TECH INC

3 patents

WU YAN

2 patents

LI MIN

1 patent

HAN CHERNG-CHYI

1 patent

WANG HUI-CHUAN

1 patent

Showing the top 50 of 120 patents by PatentIndex Score.