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Class Information
Number: 257/335
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Field effect device > Having insulated electrode (e.g., mosfet, mos diode) > Short channel insulated gate field effect transistor > Active channel region has a graded dopant concentration decreasing with distance from source region (e.g., double diffused device, dmos transistor)
Description: Subject matter wherein the short channel IGFET"s active channel region has a graded dopant concentration decreasing with distance from source region, e.g., double diffused device or a DMOS transistor.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7427795 |
Drain-extended MOS transistors and methods for making the same |
Sep. 23, 2008 |
| 7423319 |
LDPMOS structure with enhanced breakdown voltage |
Sep. 9, 2008 |
| 7417298 |
High voltage insulated-gate transistor |
Aug. 26, 2008 |
| 7408222 |
Charge trapping device and method of producing the charge trapping device |
Aug. 5, 2008 |
| 7394156 |
Semiconductor integrated circuit device and method of producing the same |
Jul. 1, 2008 |
| 7391080 |
LDMOS transistor device employing spacer structure gates |
Jun. 24, 2008 |
| 7391084 |
LDMOS transistor device, integrated circuit, and fabrication method thereof |
Jun. 24, 2008 |
| 7385246 |
Depletable cathode low charge storage diode |
Jun. 10, 2008 |
| 7382020 |
Semiconductor integrated circuit |
Jun. 3, 2008 |
| 7378708 |
Transistor having a protruded drain |
May. 27, 2008 |
| 7372104 |
High voltage CMOS devices |
May. 13, 2008 |
| 7372105 |
Semiconductor device with power supply impurity region |
May. 13, 2008 |
| 7368352 |
Semiconductor devices having transistors with vertical channels and method of fabricating the same |
May. 6, 2008 |
| 7365402 |
LDMOS transistor |
Apr. 29, 2008 |
| 7361955 |
High-voltage MOS device with dummy diffusion region |
Apr. 22, 2008 |
| 7358567 |
High-voltage MOS device and fabrication thereof |
Apr. 15, 2008 |
| 7358564 |
Semiconductor device |
Apr. 15, 2008 |
| 7355263 |
Semiconductor device and manufacturing method thereof |
Apr. 8, 2008 |
| 7355246 |
Memory cell without halo implant |
Apr. 8, 2008 |
| 7348621 |
Non-volatile memory cells |
Mar. 25, 2008 |
| 7348628 |
Vertical channel semiconductor devices and methods of manufacturing the same |
Mar. 25, 2008 |
| 7345340 |
Semiconductor integrated circuit and a semiconductor device |
Mar. 18, 2008 |
| 7345341 |
High voltage semiconductor devices and methods for fabricating the same |
Mar. 18, 2008 |
| 7339234 |
Semiconductor device and fabrication process thereof, and application thereof |
Mar. 4, 2008 |
| 7339237 |
Connection, configuration, and production of a buried semiconductor layer |
Mar. 4, 2008 |
| 7332750 |
Power semiconductor device with improved unclamped inductive switching capability and process for forming same |
Feb. 19, 2008 |
| 7329922 |
Dual-gate metal-oxide semiconductor device |
Feb. 12, 2008 |
| 7326975 |
Buried channel type transistor having a trench gate and method of manufacturing the same |
Feb. 5, 2008 |
| 7315060 |
Semiconductor storage device, manufacturing method therefor and portable electronic equipment |
Jan. 1, 2008 |
| 7315062 |
Semiconductor device, mask for impurity implantation, and method of fabricating the semiconductor device |
Jan. 1, 2008 |
| 7309894 |
High voltage gate driver integrated circuit including high voltage junction capacitor and high voltage LDMOS transistor |
Dec. 18, 2007 |
| 7309896 |
Electrostatic discharge protection device |
Dec. 18, 2007 |
| 7307314 |
LDMOS transistor with improved gate shield |
Dec. 11, 2007 |
| 7307315 |
Scalable planar DMOS transistor structure and its fabricating methods |
Dec. 11, 2007 |
| 7304348 |
DMOS transistor |
Dec. 4, 2007 |
| 7304356 |
IGBT or like semiconductor device of high voltage-withstanding capability |
Dec. 4, 2007 |
| 7301202 |
Semiconductor device and method of manufacturing the same |
Nov. 27, 2007 |
| 7301201 |
High voltage device having polysilicon region in trench and fabricating method thereof |
Nov. 27, 2007 |
| 7298007 |
SRAM formation using shadow implantation |
Nov. 20, 2007 |
| 7294886 |
Power semiconductor device |
Nov. 13, 2007 |
| 7291894 |
Vertical charge control semiconductor device with low output capacitance |
Nov. 6, 2007 |
| 7288816 |
Semiconductor device |
Oct. 30, 2007 |
| 7288822 |
Semiconductor structure and fabricating method thereof |
Oct. 30, 2007 |
| 7285822 |
Power MOS device |
Oct. 23, 2007 |
| 7282763 |
Field effect transistor formed on an insulating substrate and integrated circuit thereof |
Oct. 16, 2007 |
| 7280327 |
Mechanism for preventing ESD damage and LCD panel utilizing the same |
Oct. 9, 2007 |
| 7279757 |
Double-sided extended drain field effect transistor |
Oct. 9, 2007 |
| 7279745 |
Semiconductor device |
Oct. 9, 2007 |
| 7279744 |
Control of hot carrier injection in a metal-oxide semiconductor device |
Oct. 9, 2007 |
| 7276773 |
Power semiconductor device |
Oct. 2, 2007 |
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