Inventor
YAN HONGWEN
US39 patents
⚠️ This page may combine multiple inventors who share the name “YAN HONGWEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
28 patentsUS6838347B1Jan 4, 2005
Method for reducing line edge roughness of oxide material using chemical oxide removal
IBM28 citations92
US6541320B2Apr 1, 2003
Method to controllably form notched polysilicon gate structures
IBM32 citations92
US6345399B1Feb 12, 2002
Hard mask process to prevent surface roughness for selective dielectric etching
IBM20 citations92
US7863123B2Jan 4, 2011
Direct contact between high-κ/metal gate and wiring process flow
IBM8 citations84
US7820552B2Oct 26, 2010
Advanced high-k gate stack patterning and structure containing a patterned high-k gate stack
IBM10 citations84
US7671421B2Mar 2, 2010
CMOS structure and method for fabrication thereof using multiple crystallographic orientations and gate materials
IBM8 citations84
US7435652B1Oct 14, 2008
Integration schemes for fabricating polysilicon gate MOSFET and high-K dielectric metal gate MOSFET
IBM11 citations84
US8018005B2Sep 13, 2011
CMOS (complementary metal oxide semiconductor) devices having metal gate NFETs and poly-silicon gate PFETs
IBM11 citations83
US7691701B1Apr 6, 2010
Method of forming gate stack and structure thereof
IBM16 citations83
US6509219B2Jan 21, 2003
Fabrication of notched gates by passivating partially etched gate sidewalls and then using an isotropic etch
IBM17 citations83
US7077903B2Jul 18, 2006
Etch selectivity enhancement for tunable etch resistant anti-reflective layer
IBM9 citations74
US6908806B2Jun 21, 2005
Gate metal recess for oxidation protection and parasitic capacitance reduction
IBM10 citations74
US10276384B2Apr 30, 2019
Plasma shallow doping and wet removal of depth control cap
IBM2 citations73
US7790559B2Sep 7, 2010
Semiconductor transistors having high-K gate dielectric layers and metal gate electrodes
IBM7 citations73
US7081393B2Jul 25, 2006
Reduced dielectric constant spacer materials integration for high speed logic gates
IBM8 citations73
US6294102B1Sep 25, 2001
Selective dry etch of a dielectric film
IBM10 citations69
US11575077B2Feb 7, 2023
Microfabricated air bridges for quantum circuits
IBM3 citations68
US7863124B2Jan 4, 2011
Residue free patterned layer formation method applicable to CMOS structures
IBM2 citations63
US7329602B2Feb 12, 2008
Wiring structure for integrated circuit with reduced intralevel capacitance
IBM6 citations63
US12048254B2Jul 23, 2024
Sacrificial material facilitating protection of a substrate in a qubit device
IBM0 citations61
US11018225B2May 25, 2021
III-V extension by high temperature plasma doping
IBM0 citations60
US9087927B2Jul 21, 2015
Thermally stable high-K tetragonal HFO2 layer within high aspect ratio deep trenches
IBM0 citations52
US7820555B2Oct 26, 2010
Method of patterning multilayer metal gate structures for CMOS devices
IBM1 citations52
US7438822B2Oct 21, 2008
Apparatus and method for shielding a wafer from charged particles during plasma etching
IBM0 citations52
US9240452B2Jan 19, 2016
Array and moat isolation structures and method of manufacture
IBM1 citations51
US7749830B2Jul 6, 2010
CMOS (complementary metal oxide semiconductor) devices having metal gate NFETS and poly-silicon gate PFETS
IBM0 citations51
US11882771B2Jan 23, 2024
Smooth metal layers in Josephson junction devices
IBM0 citations45
US10366918B2Jul 30, 2019
Self-aligned trench metal-alloying for III-V nFETs
IBM0 citations38
CHEN TZE-CHIANG
2 patentsUS8158481B2Apr 17, 2012
CMOS structure and method for fabrication thereof using multiple crystallographic orientations and gate materials
CHEN TZE-CHIANG5 citations73
US8785281B2Jul 22, 2014
CMOS structure and method for fabrication thereof using multiple crystallographic orientations and gate materials
CHEN TZE-CHIANG2 citations62