摘要:
This invention relates to a method for manufacturing silicon nitride films on a silicon substrate through chemical reaction of a surface, and then manufacturing a silicon nanometer structure using the silicon nitride films under ultra high vacuum condition. A method for manufacturing silicon nano structures using silicon nitride film, includes the following steps: performing a cleaning process of the silicon surface and implanting nitrogen ions having low energy into the silicon substrate; performing first heat treatment of the silicon substrate having ions implanted therin, and cooling the silicon substrate to room temperature to form monolayer thick silicon nitride islands; implanting oxygen gas on the silicon surface on which silicon nitride islands are used as masks while maintaining the surface of the silicon substrate at a temperature of 750 to 800.degree. C. and forming silicon nano pillars by etching silicon portions selectively; and removing the silicon nitride islands by implanting reactive ions having energy of 100 to 200 eV on the surface of silicon nano pillars and performing second heat treatment at the temperature of 800 to 900.degree. C.
摘要:
A new conceptional transistor and a method for manufacturing, which increases the integration of semiconductor devices using conventional MOS devices are provided. The present invention provides a transistor in which a structure of metal-insulator film-metal dot-metal (MIMIM), metal-insulator film-metal dot-semiconductor (MIMS), or semiconductor-metal dot-semiconductor (SMS) is formed, using junction of electrodes operating as a source and a drain having a metal dot of nm therebetween, and the current flow between source and drain is controlled by controlling tunneling and Schottky barrier formed between the source and the metal dot using the method of controlling electrical potential of metal dot through charging effect of gate electrode isolated by a thick insulator.
摘要:
This invention relates to a fabrication method of field emission device by using a carbon nano-tubes and, more particularly, to a fabrication method of field emission device by using the carbon nano-tubes, gathering much attention as a new material, as a field emission tips which have thin and stiff edges so that a threshold voltage required for emitting electron of the field emission device is to be lowered drastically. This invention provides a fabrication method of the field emission device using a thermally and chemically stable carbon nano-tubes, which have very stiff and nano-meter-thick edges, as a field emission tips so that the field emission device using the carbon nano-tubes as the tips, which have an excellent electron beam coherency, can emit electrons at a very low voltage and very stable during a long period.