Abstract:
A method of manufacturing a vertical-cell-type semiconductor device may include stacking alternately first insulating layers and second insulating layers on a substrate, forming a channel hole through the first and second insulating layers, and forming dielectric layers. A channel layer and a gap fill pattern may be formed within the channel hole. The channel layer may cover a top surface of an uppermost first insulating layer. The top surface of the gap fill pattern is at the same level with the top surface of the channel layer. A first conductivity type impurities may be implanted into the channel layer to form a channel impurity region. A top surface of the gap fill pattern may be recessed. A contact pad on the recessed surface of the gap fill pattern may be formed. A ground selection gate electrode, cell gate electrodes, and string selection gate electrodes may be formed in interlayer spaces that be formed by removing the second insulating layers. String selection gate electrodes may formed in the channel impurity region.
Abstract:
A chemical mechanical polishing machine includes a polishing head assembly including a polishing head body and a membrane disposed at a bottom of the polishing head body. The bottom surface of the membrane includes a hydrophobic area and a hydrophilic area.
Abstract:
A chemical mechanical polishing machine includes a polishing head assembly including a polishing head body and a membrane disposed at a bottom of the polishing head body. The bottom surface of the membrane includes a hydrophobic area and a hydrophilic area.
Abstract:
A nonvolatile memory device including a substrate which includes a cell array region and a connection region, an electrode structure formed on the cell array region and the connection region and including a plurality of laminated electrodes, a first recess formed in the electrode structure on the connection region and disposed between the cell array region and a second recess formed in the electrode structure on the connection region, and a plurality of vertical wirings formed on the plurality of electrodes exposed by the first recess.
Abstract:
A chemical mechanical polishing machine includes a polishing head assembly including a polishing head body and a membrane disposed at a bottom of the polishing head body. The bottom surface of the membrane includes a hydrophobic area and a hydrophilic area.