Abstract:
An apparatus and/or method for controlling an ion beam may be provided, and/or a method for preparing an extraction electrode for the same may be provided. In the apparatus, a plurality of extraction electrodes may be disposed in a path of an ion beam. At least one extraction electrode may include a plurality of sub-grids.
Abstract:
Semiconductor devices and methods for manufacturing the same are disclosed. An example method includes loading a first substrate to be provided with an oxynitride layer along with a second substrate having a nitride layer in a boat, and forming the oxynitride layer on the first substrate by placing the boat into a furnace and thermally treating the boat under an oxygen atmosphere.
Abstract:
Provided is a semiconductor apparatus using an ion beam. The semiconductor apparatus may include a first grid to which a voltage applied. The voltage applied to the first grid may have the same potential level as that of a reference voltage applied to a wall portion of a plasma chamber in which plasma may be generated. The first grid may adjoin the plasma. Therefore, a potential level difference between the first grid and the wall portion of the plasma chamber may be zero, and thus the plasma may be stable.
Abstract:
A method for making a capacitor of a semiconductor memory device capable of providing increased capacitance without degraded resolution, as well as without the removal of any interlayer insulation layers upon formation of a lower electrode for the capacitor, wherein after formation of an access transistor on a semiconductor substrate, a first interlayer insulation layer for planarization of a surface of the semiconductor substrate and a second interlayer insulation layer for formation of the capacitor lower electrode are formed. After formation of an opening for exposing a part of an impurity diffusion region of the access transistor by etching a part of the first and second interlayer insulating layers, a spacer is formed within the opening. Further, after deposition of a conductive layer for the capacitor lower electrode onto a surface of the substrate, a planarization process is carried out until a part of the upper surface of the spacer is exposed. Finally, after removal of the exposed spacer, the dielectric layer and a conductive layer for the upper electrode of the capacitor are formed in sequence. The method does not require any additional insulation layer evaporation process, since the interlayer insulation layer for formation of the reverse storage electrode could be used for formation of a gate contact of a logic region, without removal. Consequently, simplification of fabrication process for a capacitor is achieved.
Abstract:
A conductive pattern on a substrate is formed. An insulating layer having an opening exposing the conductive pattern is formed. A bottom electrode is formed on the conductive pattern and a first sidewall of the opening. A spacer is formed on the bottom electrode and a second sidewall of the opening. The spacer and the bottom electrode are formed to be lower than a top surface of the insulating layer. A data storage plug is formed on the bottom electrode and the spacer. The data storage plug has a first sidewall aligned with a sidewall of the bottom electrode and a second sidewall aligned with a sidewall of the spacer. A bit line is formed on the data storage plug.
Abstract:
Semiconductor devices and methods for manufacturing the same are disclosed. An example method includes loading a first substrate to be provided with an oxynitride layer along with a second substrate having a nitride layer in a boat, and forming the oxynitride layer on the first substrate by placing the boat into a furnace and thermally treating the boat under an oxygen atmosphere.
Abstract:
A method of manufacturing a DRAM cell includes forming an isolation layer on a given region of a substrate to define an active region having a plurality of line shaped sub-regions; forming at least a pair of cell transistors in each line shaped sub-region, each cell transistor of a pair having a common drain region and respective source regions; forming a bit line pad on each common drain region and a storage node pad on each source region; forming a bit line pad protecting layer pattern having portions parallel to the word line, that covers the bit line pad; and forming storage nodes on storage node pads. The storage nodes of the DRAM cell contact with the storage node pads and are insulated electrically from the bit line pad by the bit pad protecting layer pattern.
Abstract:
A method for manufacturing highly integrated NAND and NOR logic mask read only memory (MROM) devices is disclosed. Over the top surface of a semiconductor substrate, where a first polysilicon layer is formed, a pattern of a gate electrode is formed along a word line in the order of odd numbers or even numbers. Next, an insulation layer having a thickness of a submicron range is formed over the top surface of the substrate. And then a photoresist is covered and an etch back process is performed. Thereafter, the exposed insulation layer caused by the etch back process and the polysilicon layer are selectively etched to form a word line spacing corresponding to a thickness of the insulation layer. Thus, spacing between adjacent word lines can be minimized and a process margin can be sufficiently ensured.
Abstract:
A substrate processing method may include forming a plasma; extracting ions from the plasma and accelerating the ions to have uniform or substantially uniform directivity using a grid system; irradiating the ions at a reflector, wherein the reflector includes a plurality of reflecting plates each having a metal plate and an insulating layer on the metal plate, wherein the reflecting plates are parallel or substantially parallel such that the insulating layers are exposed to the ions; reflecting the ions incident on the reflecting plates away from the insulating layers of the reflecting plates; colliding the ions reflected away from the insulating layers with the metal plates to convert the ions into neutral beams; and irradiating the neutral beams onto a substrate to process the substrate.
Abstract:
A substrate processing apparatus may include a processing chamber including a plasma generating unit arranged in an upper region thereof. A grid system, which may extract ions from plasma formed by the plasma generating unit and may accelerate the ions to have substantially uniform directivity. The grid system may be positioned below the plasma generating unit. A reflector may be arranged below the grid system and may include parallel reflecting plates for converting the ions accelerated from the grid system into neutral beams.