摘要:
A method for fabricating vertical channel transistors includes forming a plurality of pillars which have laterally opposing both sidewalls, over a substrate; forming a gate dielectric layer on both sidewalls of the pillars; forming first gate electrodes which cover any one sidewalls of the pillars and shield gate electrodes which cover the other sidewalls of the pillars and have a height lower than the first gate electrodes, over the gate dielectric layer; and forming second gate electrodes which are connected with upper portions of sidewalls of the first gate electrodes.
摘要:
A method for fabricating vertical channel transistors includes forming a plurality of pillars which have laterally opposing both sidewalls, over a substrate; forming a gate dielectric layer on both sidewalls of the pillars; forming first gate electrodes which cover any one sidewalls of the pillars and shield gate electrodes which cover the other sidewalls of the pillars and have a height lower than the first gate electrodes, over the gate dielectric layer; and forming second gate electrodes which are connected with upper portions of sidewalls of the first gate electrodes.
摘要:
A semiconductor device includes trenches defined in a substrate, buried bit lines partially filling the trenches, a first source/drain layer filling remaining portions of the trenches on the buried bit lines, stack patterns having a channel layer and a second source/drain layer stacked therein and bonded to the first source/drain layer, wherein the channel layer contacts with the first source/drain layer, and word lines crossing with the buried bit lines and disposed adjacent to sidewalls of the channel layer.
摘要:
Disclosed is a method for fabricating a semiconductor memory device capable of preventing a bunker defect caused by a pinhole or a crack on a single metal layer used as a storage node. The method includes the steps of: forming a plurality of storage node plugs on a substrate; forming an insulation layer with a plurality of openings exposing surfaces of the plurality of storage node plugs on the substrate; forming a plurality of cylinder-type storage nodes inside of the plurality of opening in a structure that a different kind of conductive layer is formed between the same kinds of conductive layers; selectively removing the insulation layer; forming a dielectric layer on the plurality of cylinder type storage nodes; and forming a plate electrode on the dielectric layer.
摘要:
A method of chemically depositing a copper film in which a bromine or iodine-containing catalyst component is employed to enhance the deposition rate. The present invention is characterized in that the catalyst component floats on the film surface during the film formation. Accordingly, a film deposition having superior step coverage and high deposition rate is obtained.
摘要:
A method for fabricating a semiconductor device includes etching a substrate to form trenches that separate active regions, forming an insulation layer having an opening to open a portion of a sidewall of each active region, forming a silicon layer pattern to gap-fill a portion of each trench and cover the opening in the insulation layer, forming a metal layer over the silicon layer pattern, and forming a metal silicide layer as buried bit lines, where the metal silicide layer is formed when the metal layer reacts with the silicon layer pattern.
摘要:
Disclosed is a method for fabricating a semiconductor memory device capable of preventing a bunker defect caused by a pinhole or a crack on a single metal layer used as a storage node. The method includes the steps of: forming a plurality of storage node plugs on a substrate; forming an insulation layer with a plurality of openings exposing surfaces of the plurality of storage node plugs on the substrate; forming a plurality of cylinder-type storage nodes inside of the plurality of opening in a structure that a different kind of conductive layer is formed between the same kinds of conductive layers; selectively removing the insulation layer; forming a dielectric layer on the plurality of cylinder type storage nodes; and forming a plate electrode on the dielectric layer.
摘要:
The present invention relates to a method for fabricating a diffusion barrier layer of a semiconductor device. The method includes the steps of: forming an insulation layer a metal interconnection line; etching the insulation layer, thereby forming an opening to expose a portion of the metal interconnection line; forming a soaking layer on the insulation layer and the opening; forming a diffusion barrier layer on the soaking layer; and filling a metal layer into the opening.