摘要:
In the method for forming a capacitor of a nonvolatile semiconductor memory device, a TaON glue layer is formed over a semiconductor substrate, and a lower electrode is formed on the TaON glue layer. A ferroelectric film is then formed on the lower electrode, and an upper electrode is formed on the ferroelectric film.
摘要:
In the method for forming a capacitor of a nonvolatile semiconductor memory device, a TaON glue layer is formed over a semiconductor substrate, and a lower electrode is formed on the TaON glue layer. A ferroelectric film is then formed on the lower electrode, and an upper electrode is formed on the ferroelectric film.
摘要:
A capacitor for a semiconductor device is manufactured by forming a lower structure on a semiconductor device, forming a lower electrode on the lower structure of the semiconductor device, forming a dielectric thin film by depositing an amorphous TaON film on the surface of the lower electrode, and supplying a Ta source gas in a mono-pulse manner and continuously supplying a reaction gas even when the Ta source gas is not supplied, and forming an upper electrode on the upper portion of the dielectric thin film.
摘要:
The present invention discloses a method for manufacturing a capacitor of a semiconductor memory device. The disclosed present invention comprises steps of forming a lower electrode made of a conductive polysilicon film or a conductive amorphous silicon film on a semiconductor substrate; forming a nitride film over the lower electrode; depositing an amorphous TaON thin film over the nitride film; subjecting the amorphous TaON thin film to a thermal treatment to effect a crystallization thereof; and forming a laminated structure composed of a TiON film and a doped silicon film for an upper electrode on the crystallized TaON thin film.
摘要:
A method for fabricating a semiconductor device having a bulb-type recessed channel including forming a mask layer on the semiconductor substrate to expose a region where a trench for a bulb-type recessed channel can be formed, forming the trench in the semiconductor substrate, implanting dopant ions in three-dimensional radial directions with a predetermined tilt angle in the exposed region of the semiconductor substrate, removing the mask layer, forming a gate stack in the region including the trench, and forming a source/drain in the semiconductor substrate.
摘要:
A capacitor in a semiconductor device and a method for fabricating the same is disclosed. Disclosed the method for fabricating the capacitor in a semiconductor device comprises the steps of: forming a lower electrode made of doped silicon materials on a semiconductor substrate; depositing a thin silicon nitride layer on the lower electrode; forming a silicon oxynitride layer on the surface of the silicon nitride layer through oxidation of the silicon nitride layer; depositing a dielectric layer on the silicon oxynitride layer; and forming an upper electrode on the dielectric layer. According to the method, after the deposition of the silicon nitride layer on the dielectric layer, oxidation treatment of the resultant structure is performed and the dielectric layer is formed on the oxidized silicon nitride layer, thereby improving the interface characteristics between the lower electrode and the dielectric layer and resulting in a decrease of the leakage current and an increase of the breakdown voltage of the capacitor in the semiconductor device.
摘要:
Disclosed herein is a method of forming a capacitor for a semiconductor memory device. The method comprises a step of:forming a lower electrode on the semiconductor substrate; forming an O3-oxide film on the lower electrode; forming Si—O—N bonds on the surface of the O3-oxide film; forming a TaON film on the Si—O—N bonds by a chemical vapor deposition of a Ta chemical vapor, an O2 gas and an NH3 gas; and forming an upper electrode on the TaON film.
摘要:
A method for forming a capacitor includes forming a concave mold over a semiconductor substrate. A storage node is formed on the concave mold. A dielectric layer including a zirconium oxide (ZrO2) layer is deposited over the storage node at a first temperature. A radical pile-up treatment on the dielectric layer is performed in an atmosphere including radicals at a second temperature higher than the first temperature to induce crystallization of the dielectric layer. A plate node is formed over the dielectric layer.
摘要:
Disclosed is a method of manufacturing a semiconductor device. The method includes the steps of forming a gate in a cell region and a peripheral region of a substrate, depositing a buffer oxide layer on the gate and the substrate, annealing a resultant structure of the substrate, depositing a nitride spacer layer on the buffer oxide layer, depositing an oxide spacer layer on the nitride spacer layer, forming an oxide spacer at the peripheral region of the substrate, and removing the oxide spacer layer remaining in the cell region. The annealing step is additionally carried out after depositing the buffer oxide layer so as to improve the interfacial surface characteristic and film quality, so that oxide etchant is prevented from penetrating into the silicon substrate during the wet dip process. Unnecessary voids are prevented from being created in the silicon substrate.
摘要:
In fabricating a dielectric layer, a semiconductor substrate which has been washed is provided. A first nitride film is formed by loading the substrate in a first furnace and subjecting the substrate to a first nitride treatment. A first oxide film is formed by unloading the substrate having the first nitride film out of the first furnace and subjecting the substrate to a first nitride treatment by introducing air while the substrate is unloaded. A second nitride film is formed by loading the substrate having the first oxide film in a second furnace and subjecting the substrate to a second nitride treatment. A second oxide film is formed by subjecting the top surface of the second nitride film to a second oxide treatment.