摘要:
A field emission electron source includes a substrate. A wiring layer is formed on the substrate, and an insulation layer is formed over the wiring layer. In the insulation layer, a plurality of through holes are provided, and conductive via plugs are disposed in the through holes. A diamond layer is formed to cover tops of the insulation layer and the conductive via plugs.
摘要:
A discharge electrode emitting electrons into a discharge gas, encompasses an emitter and current supply terminals configured to supply electric current to the emitter. The emitter embraces a wide bandgap semiconductor having at 300 K a bandgap of 2.2 eV or wider. Acceptor impurity atoms and donor impurity atoms being doped in the wide bandgap semiconductor, the activation energy of the donor impurity atoms being larger than the activation energy of the acceptor impurity atoms.
摘要:
A semiconductor light-emitting device includes: a first semiconductor layer; a light-emitting layer being disposed on the first semiconductor layer; a second semiconductor layer being disposed on the light-emitting layer, and metal electrodes connected to the first semiconductor layer and the second semiconductor layer. The light-emitting layer is lower in refractive index than the first semiconductor layer. The second semiconductor layer is lower in refractive index than the light-emitting layer. The metal electrodes supply a current to the light-emitting layer.
摘要:
A cold cathode discharge lamp includes: a transparent hollow housing; a fluorescent film formed on inner surfaces of the hollow housing; a pair of cold cathodes that are located in the hollow housing; and a discharge gas that contains hydrogen gas sealed within the hollow housing. Each of the cold cathodes includes: a supporting body that has conductivity; an insulating diamond film formed on the supporting body; and an insulating layer that insulates the supporting body from the insulating diamond film.
摘要:
A cold cathode for a discharge lamp includes a metal plate that has bending portions; a diamond film that is formed on a face of the metal plate, except for the bending portions; and a metal member that is mounted on the metal plate.
摘要:
The electron emission device includes a first electrode; a semiconductor barrier that has a first face disposed to face the first electrode and a second face which is opposite face of the first face, and is formed with a wide bandgap semiconductor; an insulating material that forms a space sealed between the first electrode and the semiconductor barrier; an inert gas that is encapsulated in the space; a second electrode that is disposed to face a second face of the semiconductor barrier interposing vacuum therebetween; a first voltage applying unit that applies a voltage between the first electrode and the semiconductor barrier; and a second voltage applying unit that applies a voltage between the semiconductor barrier and the second electrode.
摘要:
A diamond film formation method includes forming, in a composite of a metal material and a semiconductor material, diamond nuclei on a surface of the metal material at a temperature below 650° C. in a first mixed gas containing at least carbon and hydrogen, and growing the diamond nuclei formed in the composite at a temperature below 750° C. in a second mixed gas containing at least carbon and hydrogen to form a diamond film.
摘要:
A heat sink includes a base portion formed of insulating diamond, and a plurality of pressure contacting members formed of the insulating diamond and arranged on the base portion
摘要:
A discharge light-emitting device includes an outer envelope filled with discharge gas and a pair of electrodes contained in the outer envelope is provided. At least one of the electrodes includes an electrically conductive substrate, an n-type semiconductor layer provided on the substrate, and a p-type diamond layer provided on the n-type semiconductor layer.
摘要:
A heat sink includes a base portion formed of insulating diamond, and a plurality of pressure contacting members formed of the insulating diamond and arranged on the base portion