摘要:
A semiconductor memory device includes a titanium layer and a titanium nitride layer formed on a substrate, a thin layer formed on the titanium nitride layer, and a metal layer formed on the thin layer, wherein the thin layer increases a grain size of the metal layer.
摘要:
A semiconductor device includes a substrate, a pattern including a conductive layer and a hard mask layer stacked over the substrate, a capping layer surrounding sidewalls of the pattern, and a stress buffer layer disposed between the hard mask layer and the capping layer. The stress buffer layer is configured to inhibit transfer of stress between the hard mask layer and the capping layer during a thermal process so as to inhibit leaning of the capping layer.
摘要:
A semiconductor device includes a substrate, a pattern including a conductive layer and a hard mask layer stacked over the substrate, a capping layer surrounding sidewalls of the pattern, and a stress buffer layer disposed between the hard mask layer and the capping layer. The stress buffer layer is configured to inhibit transfer of stress between the hard mask layer and the capping layer during a thermal process so as to inhibit leaning of the capping layer.
摘要:
A method for fabricating a semiconductor device includes forming a stacked layer including a tungsten layer, forming a hard mask pattern over the stacked layer, and oxidizing a surface of the hard mask pattern to form a stress buffer layer. A portion of the stacked layer uncovered by the hard mask pattern is removed using the hard mask pattern and the stress buffer layer as an etch mask, thereby forming a first resultant structure. A capping layer is formed over the first resultant structure, the capping layer is etched to retain the capping layer on sidewalls of the first resultant structure, and the remaining portion of the stacked layer uncovered by the hard mask pattern is removed.
摘要:
A method for fabricating a semiconductor device includes forming an insulation layer over a substrate including a pattern for forming a multi-plane channel, forming a columnar polysilicon layer over the insulation layer and filling in the pattern, and performing a thermal treatment process.
摘要:
A method for manufacturing a semiconductor device includes forming a plurality of pillars by etching a semiconductor substrate, forming a gate dielectric layer on sidewalls of the pillars and on surfaces of the semiconductor substrate between the pillars, forming an implant damage in a portion of the gate dielectric layer between two pillars by implanting ions into the portion of the gate dielectric layer, forming vertical gates to cover the sidewalls of the pillars, and removing the implant damage.
摘要:
A method for forming a dual gate oxide layer, including the steps of: a) forming a gate oxide layer on a semiconductor substrate; and b) increasing a thickness of a part of the gate oxide layer by performing a decoupled plasma treatment. Additional heat processes are not necessary because the dual gate oxide layer is formed with the decoupled plasma. Also, the channel characteristic of the semiconductor device can be ensured because the silicon substrate is not damaged. Furthermore, because the threshold voltage in the cell region is increased without additional channel ion implantation, the electrical characteristic of the semiconductor device can be enhanced.
摘要:
A method for forming a dual gate oxide layer, including the steps of: a) forming a gate oxide layer on a semiconductor substrate; and b) increasing a thickness of a part of the gate oxide layer by performing a decoupled plasma treatment. Additional heat processes are not necessary because the dual gate oxide layer is formed with the decoupled plasma. Also, the channel characteristic of the semiconductor device can be ensured because the silicon substrate is not damaged. Furthermore, because the threshold voltage in the cell region is increased without additional channel ion implantation, the electrical characteristic of the semiconductor device can be enhanced.
摘要:
Disclosed are a semiconductor device with dual gate dielectric layers and a method for fabricating the same. The semiconductor device includes: a silicon substrate divided into a cell region where NMOS transistors are formed and a peripheral region where NMOS and PMOS transistors are formed; a targeted silicon oxide layer formed on the silicon substrate in the cell region; an oxynitride layer formed on the silicon substrate in the peripheral region; a first gate structure formed in the cell region; a second gate structure formed on the oxynitride layer in an NMOS region of the peripheral region; and a third gate structure formed on the oxynitride layer in a PMOS region of the peripheral region.
摘要:
A nonvolatile memory device with a blocking layer controlling the transfer of electric charges in a charge storage layer includes the blocking layer having a first blocking layer in contact with the charge storage layer and a second blocking layer over the first blocking layer, wherein the first blocking layer has a greater energy band gap than the second blocking layer and the second blocking layer has a greater permittivity than the first blocking layer.