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Class Information
Number: 257/598
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Voltage variable capacitance device > With plural junctions whose depletion regions merge to vary voltage dependence
Description: Subject matter wherein the device has more than one junction with depletion regions that merge to achieve a capacitance that varies with applied voltage.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7388276 |
Metal-insulator varactor devices |
Jun. 17, 2008 |
| 7112835 |
Semiconductor device including a capacitance |
Sep. 26, 2006 |
| 6943399 |
Varactor and differential varactor |
Sep. 13, 2005 |
| 6882029 |
Junction varactor with high Q factor and wide tuning range |
Apr. 19, 2005 |
| 6878983 |
High performance varactor diodes |
Apr. 12, 2005 |
| 6864528 |
Integrated, tunable capacitor |
Mar. 8, 2005 |
| 6787882 |
Semiconductor varactor diode with doped heterojunction |
Sep. 7, 2004 |
| 6667539 |
Method to increase the tuning voltage range of MOS varactors |
Dec. 23, 2003 |
| 6541814 |
MOS variable capacitor with controlled dC/dV and voltage drop across W of gate |
Apr. 1, 2003 |
| 6541792 |
Memory device having dual tunnel junction memory cells |
Apr. 1, 2003 |
| 6400001 |
Varactor, in particular for radio-frequency transceivers |
Jun. 4, 2002 |
| 6331716 |
Variable capacity device with quantum-wave interference layers |
Dec. 18, 2001 |
| 6320474 |
MOS-type capacitor and integrated circuit VCO using same |
Nov. 20, 2001 |
| 6100770 |
MIS transistor varactor device and oscillator using same |
Aug. 8, 2000 |
| 6037650 |
Variable capacitance semiconductor device |
Mar. 14, 2000 |
| 5965912 |
Variable capacitor and method for fabricating the same |
Oct. 12, 1999 |
| 5859469 |
Use of tungsten filled slots as ground plane in integrated circuit structure |
Jan. 12, 1999 |
| 5789801 |
Varactor with electrostatic barrier |
Aug. 4, 1998 |
| 5747865 |
Varactor diode controllable by surface layout design |
May. 5, 1998 |
| 5714797 |
Variable capacitance semiconductor diode |
Feb. 3, 1998 |
| 5506442 |
Variable-capacitance device and semiconductor integrated circuit device having such variable-capacitance device |
Apr. 9, 1996 |
| 5475242 |
Notched insulation gate static induction transistor integrated circuit |
Dec. 12, 1995 |
| 5220193 |
Variable-capacitance diode device with common electrode |
Jun. 15, 1993 |
| 5136346 |
Photon stimulated variable capacitance effect devices |
Aug. 4, 1992 |
| 4837607 |
Large-area, low capacitance semiconductor arrangement |
Jun. 6, 1989 |
| 4630082 |
Semiconductor device with multi-electrode construction equivalent to variable capacitance diode |
Dec. 16, 1986 |
| 4529994 |
Variable capacitor with single depletion layer |
Jul. 16, 1985 |
| 4529995 |
Variable capacitance device |
Jul. 16, 1985 |
| 4456917 |
Variable capacitor |
Jun. 26, 1984 |
| 4449141 |
Variable capacitor |
May. 15, 1984 |
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