Samsung Sdi Co., Inc.

Other

Samsung Electronics Co., Ltd.

Nae-Sung Lee

Jong-Min Kim

Hang-woo Lee

Yong-soo Choi

Sung-Hee Cho

Shang-hyeun Park

Yo-sep Min

Jong-Hwan Park

Jo-won Lee

Jun-hee Choi

Deuk-seok Chung

Byong-man Kim

Jae-Sang Ha

Deok-Hyeon Choe

Myung-Ick Hwang

Ji-Hyun Jeon

Young-hee Lee

Jun-Seop Kim

Provided is a method of manufacturing an electron emission device. The method includes: forming electron emission sources including a carbon-based material; and emitting electrons from the electron emission sources in a chamber containing a gas. Accordingly, an electron emission display device employing the electron emission device can improve uniformity between pixels and increase device lifespan.

Method of manufacturing electron emission device and electron emission device manufactured by the method

A rewritable data storage using a carbonaceous material writes or erases information represented by the carbonaceous material by means of a current induced electrochemical reaction on a conductive layer, by controlling a voltage applied across the space between a cantilever tip and the conductive layer. Also, the size of the carbonaceous material representing information is controlled by the level of the applied voltage or the application duration.

Rewritable data storage using carbonaceous material and writing/reading method thereof

A triode field emission display using carbon nanotubes having an excellent electron emission characteristic is provided. By forming extraction electrodes for controlling emitted electrons around an anode on a front substrate, the triode field emission display (FED) using carbon nanotubes has a simple structure like a diode FED, thereby facilitating manufacture using vapor deposition of carbon nanotubes and allowing control of anode current using extraction electrodes. Accordingly, a large FED can be simply manufactured.

Triode field emission display using carbon nanobtubes

A method of manufacturing a field emitter array using carbon nanotubes, low voltage field emission material, is provided. The method includes the steps of (a) forming a conductive thin film layer on the top of a transparent substrate having a transparent electrode and exposing a predetermined portion of the transparent electrode; (b) forming an opaque thin film layer on the exposed predetermined portion of the transparent electrode; (c) depositing an insulation material on the entire top surface of the transparent substrate and removing the insulation material from the top surfaces of the conductive thin film layer and the opaque thin film layer, thereby forming an insulation layer; (d) forming a gate layer on the top of the insulation layer; and (e) removing the opaque thin film layer and forming carbon nanotube tips on the top of the exposed transparent electrode. Accordingly, the triode carbon nanotube field emitter array can be easily manufactured using a small number of mask layers and without using a special aligner.

Method of manufacturing triode carbon nanotube field emitter array

A method of vertically aligning pure carbon nanotubes on a large glass or silicon substrate at a low temperature using a low pressure DC thermal chemical vapor deposition method is provided. In this method, catalytic decomposition with respect to hydro-carbon gases is performed in two steps. Basically, an existing thermal chemical vapor deposition method using hydro-carbon gases such as acetylene, ethylene, methane or propane is used. To be more specific, the hydro-carbon gases are primarily decomposed at a low temperature of 400-500&deg; C. by passing the hydro-carbon gases through a mesh-structure catalyst which is made of Ni, Fe, Co, Y, Pd, Pt, Au or an alloy of two or more of these materials. Secondly, the catalytically- and thermally-decomposed hydro-carbon gases pass through the space between a carbon nanotube growing substrate and an electrode substrate made of Ni, Fe, Co, Y, Pd, Pt, Au or an alloy of two or more of these materials or an electrode substrate on which Ni, Fe, Co, Y, Pd, Pt, Au or an alloy of two or more of these materials is thinly deposited by sputtering or electron-beam evaporation, the space to which DC voltage has been applied.

Method of vertically aligning carbon nanotubes on substrates at low pressure using thermal chemical vapor deposition with DC bias

A triode field emission device using a field emission material and a driving method thereof are provided. In this device, gate electrodes serving to take electrons out of a field emission material on cathodes are installed on a substrate below the cathodes, so that the manufacture of the device is easy. Also, electrons emitted from the field emission material are controlled by controlling gate voltage.

Triode structure field emission device

A method for fabricating a triode field emitter array using carbon nanotubes having excellent electron emission characteristics is provided. In the method for fabricating a triode-structure carbon nanotube field emitter array, a catalyst layer is formed on a cathode electrode without forming a base layer, and carbon nanotubes are grown on the catalyst layer using a Spind't process. In this method, a non-reactive layer is formed on a catalyst layer outside the micro-cavity such that the carbon nanotubes can be grown only on the catalyst within the micro-cavity. Accordingly, even through a separation layer is etched and removed, since carbon nanotubes do not exist outside the micro-cavity, it does not happen that carbon nanotubes are drifted into the micro-cavities. Therefore, the fabrication yield is increased, and the fabrication cost is decreased.

Method for fabricating triode-structure carbon nanotube field emitter array

Growing community of inventors

Seoul, South Korea

Nae-Sung Lee