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Class Information
Number: 257/10
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Thin active physical layer which is (1) an active potential well layer thin enough to establish discrete quantum energy levels or (2) an active barrier layer thin enough to permit quantum mechanical tunneling or (3) an active layer thin enough to permit carrier transmission with substantially no scattering (e.g., superlattice quantum well, or ballistic transport device) > Low workfunction layer for electron emission (e.g., photocathode electron emissive layer)
Description: Subject matter wherein a layer of material from which electrons are emitted with less input energy than that necessary to emit them from adjacent material is provided.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7432533 |
Encapsulation of electronic devices with shaped spacers |
Oct. 7, 2008 |
| 7432521 |
Logical operation element field emission emitter and logical operation circuit |
Oct. 7, 2008 |
| 7420261 |
Bulk nitride mono-crystal including substrate for epitaxy |
Sep. 2, 2008 |
| 7417227 |
Scanning interference electron microscope |
Aug. 26, 2008 |
| 7417367 |
Patterned light emitting devices |
Aug. 26, 2008 |
| 7399987 |
Planar electron emitter (PEE) |
Jul. 15, 2008 |
| 7394091 |
Composite nano-particle and method for preparing the same |
Jul. 1, 2008 |
| 7375366 |
Carbon nanotube and method for producing the same, electron source and method for producing the same, and display |
May. 20, 2008 |
| 7375400 |
Field emission display device |
May. 20, 2008 |
| 7365356 |
Photocathode |
Apr. 29, 2008 |
| 7362048 |
Light emitting device with blue light led and phosphor components |
Apr. 22, 2008 |
| 7354781 |
Method of manufacturing field emission device |
Apr. 8, 2008 |
| 7355268 |
High reflector tunable stress coating, such as for a MEMS mirror |
Apr. 8, 2008 |
| 7348531 |
Photoelectric conversion device and image pickup device using electron emission devices |
Mar. 25, 2008 |
| 7339201 |
Light emitting diode and process for producing the same |
Mar. 4, 2008 |
| 7332736 |
Article comprising gated field emission structures with centralized nanowires and method for making the same |
Feb. 19, 2008 |
| 7329552 |
Field effect transistor fabrication methods, field emission device fabrication methods, and field emission device operational methods |
Feb. 12, 2008 |
| 7301271 |
Light-emitting devices with high light collimation |
Nov. 27, 2007 |
| 7268361 |
Electron emission device |
Sep. 11, 2007 |
| 7259444 |
Optoelectronic device with patterned ion implant subcollector |
Aug. 21, 2007 |
| 7227172 |
Group-III-element nitride crystal semiconductor device |
Jun. 5, 2007 |
| 7220984 |
Influence of surface geometry on metal properties |
May. 22, 2007 |
| 7202511 |
Near-infrared visible light photon counter |
Apr. 10, 2007 |
| 7195723 |
Colloidal solutions and nanocomposites of electrides and alkalides and methods of use |
Mar. 27, 2007 |
| 7170771 |
Method of reading a data bit including detecting conductivity of a volume of alloy exposed to an electron beam |
Jan. 30, 2007 |
| 7166830 |
Light detecting sensor |
Jan. 23, 2007 |
| 7141807 |
Nanowire capillaries for mass spectrometry |
Nov. 28, 2006 |
| 7132730 |
Bulk nitride mono-crystal including substrate for epitaxy |
Nov. 7, 2006 |
| 7129513 |
Field emission ion source based on nanostructure-containing material |
Oct. 31, 2006 |
| 7119487 |
Semiconductor light emitting device with stacked light emitting elements |
Oct. 10, 2006 |
| 7109515 |
Carbon containing tips with cylindrically symmetrical carbon containing expanded bases |
Sep. 19, 2006 |
| 7102145 |
System and method for improving spatial resolution of electron holography |
Sep. 5, 2006 |
| 7095040 |
Electron-emitting device and method of manufacturing the same and display apparatus using the same |
Aug. 22, 2006 |
| 7091513 |
Cathode assemblies |
Aug. 15, 2006 |
| 7078855 |
Dielectric light device |
Jul. 18, 2006 |
| 7067336 |
Electron-emitting device, electron source and image-forming apparatus, and manufacturing methods thereof |
Jun. 27, 2006 |
| 7064090 |
Method of manufacturing a semiconductor integrated circuit device |
Jun. 20, 2006 |
| 7061006 |
Light emission from semiconductor integrated circuits |
Jun. 13, 2006 |
| 7056753 |
Field emission display with double gate structure and method of manufacturing therefor |
Jun. 6, 2006 |
| 7057203 |
Low work function material |
Jun. 6, 2006 |
| 7057262 |
High reflector tunable stress coating, such as for a MEMS mirror |
Jun. 6, 2006 |
| 7057333 |
Method and device for extraction of electrons in a vacuum and emission cathodes for said device |
Jun. 6, 2006 |
| 7057202 |
Ultra-high density storage device using phase change diode memory cells and methods of fabrication thereof |
Jun. 6, 2006 |
| 7049158 |
Method of manufacturing an emitter |
May. 23, 2006 |
| 7044823 |
Method of making a tunneling emitter |
May. 16, 2006 |
| 7045807 |
Field emission device, field emission display adopting the same and manufacturing method thereof |
May. 16, 2006 |
| 7042060 |
Backside thinning of image array devices |
May. 9, 2006 |
| 7038233 |
Semiconductor optical devices and optical modules |
May. 2, 2006 |
| 7030405 |
Method and apparatus for resistance variable material cells |
Apr. 18, 2006 |
| 7030406 |
Semiconductor photocathode and photoelectric tube using the same |
Apr. 18, 2006 |
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