Inventor
CHEN CHANGHUA
US19 patents
⚠️ This page may combine multiple inventors who share the name “CHEN CHANGHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LUMILEDS LIGHTING LLC
5 patentsUS6194742B1Feb 27, 2001
Strain engineered and impurity controlled III-V nitride semiconductor films and optoelectronic devices
LUMILEDS LIGHTING LLC135 citations98
US6274399B1Aug 14, 2001
Method of strain engineering and impurity control in III-V nitride semiconductor films and optoelectronic devices
LUMILEDS LIGHTING LLC113 citations97
US6914272B2Jul 5, 2005
Formation of Ohmic contacts in III-nitride light emitting devices
LUMILEDS LIGHTING LLC40 citations95
US6657300B2Dec 2, 2003
Formation of ohmic contacts in III-nitride light emitting devices
LUMILEDS LIGHTING LLC37 citations95
US6794731B2Sep 21, 2004
Minority carrier semiconductor devices with improved reliability
LUMILEDS LIGHTING LLC1 citations52
SIFOTONICS TECH CO LTD
3 patentsUS9977187B2May 22, 2018
Polarization rotator-splitter/combiner based on silicon rib-type waveguides
SIFOTONICS TECH CO LTD11 citations83
US9946029B2Apr 17, 2018
Optical coupler having anchored cantilever structure with multi-stage inverse taper core waveguide and fabrication method thereof
SIFOTONICS TECH CO LTD8 citations83
US9429776B2Aug 30, 2016
Silicon-based rib-waveguide modulator and fabrication method thereof
SIFOTONICS TECH CO LTD3 citations72
SIFOTONICS TECHNOLOGIES CO LTD
2 patentsUS9285651B2Mar 15, 2016
Electro-optic silicon modulator with longitudinally nonuniform modulation
SIFOTONICS TECHNOLOGIES CO LTD3 citations70
US9223185B2Dec 29, 2015
Electro-optic silicon modulator with alternative capacitance-loaded coplanar waveguide structures
SIFOTONICS TECHNOLOGIES CO LTD1 citations45