Inventor
LEE SANG HEUNG
KR41 patents
⚠️ This page may combine multiple inventors who share the name “LEE SANG HEUNG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOREA ELECTRONICS TELECOMM
21 patentsUS7554416B2Jun 30, 2009
Multi-band LC resonance voltage-controlled oscillator with adjustable negative resistance cell
KOREA ELECTRONICS TELECOMM21 citations92
US6346861B2Feb 12, 2002
Phase locked loop with high-speed locking characteristic
KOREA ELECTRONICS TELECOMM22 citations91
US8841969B2Sep 23, 2014
Automatic gain control feedback amplifier
KOREA ELECTRONICS TELECOMM8 citations84
US7902577B2Mar 8, 2011
Image sensor having heterojunction bipolar transistor and method of fabricating the same
KOREA ELECTRONICS TELECOMM10 citations84
US7902930B2Mar 8, 2011
Colpitts quadrature voltage controlled oscillator
KOREA ELECTRONICS TELECOMM8 citations84
US7741665B2Jun 22, 2010
High-quality CMOS image sensor and photo diode
KOREA ELECTRONICS TELECOMM9 citations84
US7511581B2Mar 31, 2009
Wide-band multimode frequency synthesizer and variable frequency divider
KOREA ELECTRONICS TELECOMM9 citations84
US7414488B2Aug 19, 2008
Low phase noise differential LC tank VCO with current negative feedback
KOREA ELECTRONICS TELECOMM14 citations84
US7157977B2Jan 2, 2007
Automatic gain control feedback amplifier
KOREA ELECTRONICS TELECOMM10 citations80
US9178474B2Nov 3, 2015
Feedback amplifier
KOREA ELECTRONICS TELECOMM6 citations73
US8901608B2Dec 2, 2014
Transistor and method of fabricating the same
KOREA ELECTRONICS TELECOMM4 citations73
US9012920B2Apr 21, 2015
Wafer level packaged GaN power semiconductor device and the manufacturing method thereof
KOREA ELECTRONICS TELECOMM3 citations63
US7852165B2Dec 14, 2010
Capacitive-degeneration double cross-coupled voltage-controlled oscillator
KOREA ELECTRONICS TELECOMM2 citations63
US7666749B2Feb 23, 2010
SiGe semiconductor device and method of manufacturing the same
KOREA ELECTRONICS TELECOMM3 citations63
US7550796B2Jun 23, 2009
Germanium semiconductor device and method of manufacturing the same
KOREA ELECTRONICS TELECOMM4 citations63
US7303966B2Dec 4, 2007
Semiconductor device and method of manufacturing the same
KOREA ELECTRONICS TELECOMM5 citations63
US7170355B2Jan 30, 2007
Voltage-controlled oscillator using current feedback network
KOREA ELECTRONICS TELECOMM5 citations58
US9209266B2Dec 8, 2015
High electron mobility transistor and manufacturing method thereof
KOREA ELECTRONICS TELECOMM0 citations52
US9166011B2Oct 20, 2015
Semiconductor device having stable gate structure and method of manufacturing the same
KOREA ELECTRONICS TELECOMM0 citations52
US7461235B2Dec 2, 2008
Energy-efficient parallel data path architecture for selectively powering processing units and register files based on instruction type
KOREA ELECTRONICS TELECOMM1 citations52
US9224830B2Dec 29, 2015
Transistor and method of fabricating the same
KOREA ELECTRONICS TELECOMM0 citations42
ELECTRONICS & TELECOMMUNICATIONS RES INST
13 patentsUS9634112B2Apr 25, 2017
Field effect transistor and method of fabricating the same
ELECTRONICS & TELECOMMUNICATIONS RES INST2 citations73
US9537458B2Jan 3, 2017
Feedback amplifier
ELECTRONICS & TELECOMMUNICATIONS RES INST2 citations73
US10256811B2Apr 9, 2019
Cascode switch circuit including level shifter
ELECTRONICS & TELECOMMUNICATIONS RES INST2 citations70
US10608102B2Mar 31, 2020
Semiconductor device having a drain electrode contacting an epi material inside a through-hole and method of manufacturing the same
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations60
US12131978B2Oct 29, 2024
Semiconductor device with high heat dissipation property using hexagonal boron nitride and method of manufacturing the same
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations59
US12166101B2Dec 10, 2024
High-electron-mobility transistor device and method of manufacturing the same
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations58
US11632117B2Apr 18, 2023
Frequency modulation system based on phase-locked loop capable of performing fast modulation independent of bandwidth and method of the same
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations56
US11223333B2Jan 11, 2022
Microwave amplification circuit
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations52
US9438199B2Sep 6, 2016
Component package including matching circuit and matching method thereof
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations52
US10134854B2Nov 20, 2018
High electron mobility transistor and fabrication method thereof
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations51
US9780176B2Oct 3, 2017
High reliability field effect power device and manufacturing method thereof
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations51
US12176306B2Dec 24, 2024
Electrical circuit of semiconductor channel resistor and apparatus and method for generating the same
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations49
US9837719B2Dec 5, 2017
Patch antenna
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations40