Lianjun Liu
104Patents
14h-index
65Co-inventors
89Inventor score
Filing activity: Mar 17, 1995 → Dec 18, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7305223B2 | Radio frequency circuit with integrated on-chip radio frequency signal coupler | Electricity | 75 | Expired |
| US7446017B2 | Methods and apparatus for RF shielding in vertically-integrated semiconductor devices | Electricity | 43 | Active |
| US7829366B2 | Microelectromechanical systems component and method of making same | Electricity | 36 | Active |
| US7567782B2 | Re-configurable impedance matching and harmonic filter system | Electricity | 36 | Active |
| US6794101B2 | Micro-electro-mechanical device and method of making | Electricity | 34 | Expired |
| US9318376B1 | Through substrate via with diffused conductive component | Electricity | 26 | Active |
| US5609775A | Dry etch process for titanium-tungsten films | Electricity | 25 | Expired |
| US7141989B1 | Methods and apparatus for a MEMS varactor | Electricity | 24 | Expired |
| US7663196B2 | Integrated passive device and method of fabrication | Electricity | 23 | Active |
| US7683733B2 | Balun transformer with improved harmonic suppression | Emerging Cross-Sectional Technologies | 20 | Active |
| US7418251B2 | Compact radio frequency harmonic filter using integrated passive device technology | Electricity | 18 | Active |
| US6225140A | CMOS compatable surface machined pressure sensor and method of fabricating the same | Physics | 17 | Expired |
| US8138062B2 | Electrical coupling of wafer structures | Electricity | 16 | Active |
| US6706548B2 | Method of making a micromechanical device | Performing Operations; Transporting | 15 | Expired |
| US8513042B2 | Method of forming an electromechanical transducer device | Performing Operations; Transporting | 14 | Active |
| US8158492B2 | MEMS microphone with cavity and method therefor | Electricity | 13 | Active |
| US6776170B2 | Method and apparatus for plasma cleaning of workpieces | Electricity | 13 | Expired |
| US5705428A | Method for preventing titanium lifting during and after metal etching | Electricity | 12 | Expired |
| US6809036B2 | Dry silylation plasma etch process | Physics | 12 | Expired |
| US9739842B2 | Magnetic field sensor with skewed sense magnetization of sense layer | Physics | 12 | Active |
| US8149564B2 | MEMS capacitive device and method of forming same | Emerging Cross-Sectional Technologies | 11 | Active |
| US7276420B2 | Method of manufacturing a passive integrated matching network for power amplifiers | Electricity | 11 | Expired |
| US7869784B2 | Radio frequency circuit with integrated on-chip radio frequency inductive signal coupler | Electricity | 11 | Active |
| US7961063B2 | Balun signal transformer and method of forming | Electricity | 8 | Active |
| US7630693B2 | Transmitter with improved power efficiency | Electricity | 7 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.