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 patentsUS7390529B2Jun 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 patentsUS9852752B1Dec 26, 2017
Plasmon generator with metallic waveguide blocker for TAMR
HEADWAY TECH INC45 citations94
US10262683B2Apr 16, 2019
Self-aligned hybrid Au—Rh near field transducer for enhanced reliability
HEADWAY TECH INC14 citations85
US10586560B1Mar 10, 2020
Rhodium film with thin template layer and its application to a thermally assisted magnetic recording (TAMR) writer
HEADWAY TECH INC8 citations84
WU YAN
2 patentsLI MIN
1 patentHAN CHERNG-CHYI
1 patentWANG HUI-CHUAN
1 patentShowing the top 50 of 120 patents by PatentIndex Score.