摘要:
Methods of manufacturing non-volatile memory devices are provided including sequentially forming a tunnel insulating layer, a charge-trapping layer, a blocking layer and a conductive layer on a substrate having a channel region. The conductive layer is patterned to form a word line structure, and the blocking layer and the charge-trapping layer are etched using an aqueous acid solution as an etching solution to form a blocking layer pattern and a charge-trapping layer pattern.
摘要:
Example embodiments of the present invention relates to methods of fabricating a semiconductor device. Other example embodiments of the present invention relate to methods of fabricating a semiconductor device using a metal nitride layer as a gate electrode. The methods may include providing a semiconductor substrate having a first region and a second region. A gate insulating layer, a metal nitride layer and/or an amorphous carbon layer may be sequentially formed on the substrate. The amorphous carbon layer may be selectively etched, forming an amorphous carbon mask covering the first region. The metal nitride layer, exposed by the amorphous carbon mask, may be etched, forming a preliminary metal nitride pattern. The amorphous carbon mask may be removed.
摘要:
In a method of forming a silicon oxide layer, a spin-on-glass (SOG) layer may be formed on an object including a recess using an SOG composition. The SOG layer may be pre-baked and then cured by contacting with at least one material selected from the group consisting of water, a basic material and an oxidant, under a pressure of from about 1.5 atm to about 100 atm. The cured SOG layer may be baked.
摘要:
In a semiconductor device having an enlarged contact area between a contact structure and a substrate, the substrate may include a first region on which a conductive structure is arranged and a second region defining the first region. The first region may include a multi-faced polyhedral recess of which at least one of the sidewalls is slanted with respect to a surface of the substrate. An insulation layer may be formed on the substrate to a thickness that is sufficient to cover the conductive structure. The insulation layer has a contact hole that may be communicated with the recess. The active region of the substrate is exposed through the contact hole. A conductive pattern is positioned in the recess and the contact hole. Accordingly, the contact resistance at the active region of the substrate may be kept to a relatively low value even though the gap distances and line width of pattern lines are reduced.
摘要:
In a semiconductor device having an enlarged contact area between a contact structure and a substrate, the substrate may include a first region on which a conductive structure is arranged and a second region defining the first region. The first region may include a multi-faced polyhedral recess of which at least one of the sidewalls is slanted with respect to a surface of the substrate. An insulation layer may be formed on the substrate to a thickness that is sufficient to cover the conductive structure. The insulation layer has a contact hole that may be communicated with the recess. The active region of the substrate is exposed through the contact hole. A conductive pattern is positioned in the recess and the contact hole. Accordingly, the contact resistance at the active region of the substrate may be kept to a relatively low value even though the gap distances and line width of pattern lines are reduced.