摘要:
A method for manufacturing a capacitor of a semiconductor memory device by a two-step thermal treatment is provided. A lower electrode is formed on a semiconductor substrate. A dielectric layer is formed over the lower electrode. An upper electrode formed of a noble metal is formed over the dielectric layer. The resultant having the upper electrode undergoes a first thermal treatment under a first atmosphere including oxygen at a first temperature which is selected to be within a range of 200-600° C., which is lower than the oxidation temperature of the upper electrode. The first thermally treated resultant undergoes a second thermal treatment under a second atmosphere without oxygen at a second temperature which is selected to be within a range of 300-900° C., which is higher than the first temperature.
摘要:
A method for manufacturing a capacitor of a semiconductor memory device by controlling thermal budgets is provided. In the method for manufacturing a capacitor of a semiconductor memory device, a lower electrode is formed on a semiconductor substrate. The lower electrode is heat-treated with a first thermal budget. A dielectric layer is formed on the heat-treated lower electrode. The dielectric layer is crystallized by heat-treating the dielectric layer with a second thermal budget which is smaller than the first thermal budget.
摘要:
A method of manufacturing a semiconductor device having a metal layer is provided in which variation of surface morphology resulting from thermal oxidation is suppressed. The metal layer is pretreated at a first temperature so that an upper surface of the metal layer is changed into a mixed phase of metal and oxygen and becomes substantially resistant to further oxidation during a subsequent heating at a higher temperature in an oxygen atmosphere.
摘要:
A method of manufacturing a semiconductor device having a metal layer is provided in which variation of surface morphology resulting from thermal oxidation is suppressed. The metal layer is pretreated at a first temperature so that an upper surface of the metal layer is changed into a mixed phase of metal and oxygen and becomes substantially resistant to further oxidation during a subsequent heating at a higher temperature in an oxygen atmosphere.
摘要:
A metal-insulator-metal (MIM) capacitor includes a lower electrode, a dielectric layer, and an upper electrode. The lower electrode includes a first conductive layer, a chemical barrier layer on the first conductive layer, and a second conductive layer on the chemical barrier layer. The chemical barrier layer is between the first and second conductive layers and is a different material than the first and second conductive layers. The dielectric layer is on the lower electrode. The upper electrode is on the dielectric layer opposite to the lower electrode. The first and second conductive layers can have the same thickness. The chemical barrier layer can be thinner than each of the first and second conductive layers. Related methods are discussed.
摘要:
A metal-insulator-metal (MIM) capacitor includes a lower electrode, a dielectric layer, and an upper electrode. The lower electrode includes a first conductive layer, a chemical barrier layer on the first conductive layer, and a second conductive layer on the chemical barrier layer. The chemical barrier layer is between the first and second conductive layers and is a different material than the first and second conductive layers. The dielectric layer is on the lower electrode. The upper electrode is on the dielectric layer opposite to the lower electrode. The first and second conductive layers can have the same thickness. The chemical barrier layer can be thinner than each of the first and second conductive layers. Related methods are discussed.
摘要:
A metal-insulator-metal (MIM) capacitor includes a lower electrode, a dielectric layer, and an upper electrode. The lower electrode includes a first conductive layer, a chemical barrier layer on the first conductive layer, and a second conductive layer on the chemical barrier layer. The chemical barrier layer is between the first and second conductive layers and is a different material than the first and second conductive layers. The dielectric layer is on the lower electrode. The upper electrode is on the dielectric layer opposite to the lower electrode. The first and second conductive layers can have the same thickness. The chemical barrier layer can be thinner than each of the first and second conductive layers. Related methods are discussed.
摘要:
A semiconductor device including a multilayer dielectric film and a method for fabricating the semiconductor device are disclosed. The multilayer dielectric film includes a type-one dielectric film having a tetragonal crystalline structure, wherein the type-one dielectric film comprises a first substance. The multilayer dielectric film also comprises a type-two dielectric film also having a tetragonal crystalline structure, wherein the type-two dielectric film comprises a second substance different from the first substance and a dielectric constant of the type-two dielectric film is greater than a dielectric constant of the type-one dielectric film.
摘要:
A semiconductor device includes a lower electrode of a capacitor, a dielectric layer disposed on the lower electrode, and an upper electrode of the capacitor disposed on the dielectric layer. The upper electrode includes a doped poly-Si1-xGex layer. An interlayer insulating layer is disposed on the doped poly-Si1-xGex layer and has a contact hole partially exposing the doped poly-Si1-xGex layer. A metal contact plug is in the contact hole and an interconnection layer is disposed on the interlayer insulating layer and connected to the metal contact plug. Related interconnection structures and fabrication methods are also disclosed.
摘要翻译:半导体器件包括电容器的下电极,设置在下电极上的电介质层和设置在电介质层上的电容器的上电极。 上电极包括掺杂的多晶硅层1-x层Ge层。 层间绝缘层设置在掺杂的多晶硅层上,并且具有部分暴露掺杂的多晶硅1-x层的接触孔 sub> Ge 层。 金属接触插塞在接触孔中,并且互连层设置在层间绝缘层上并与金属接触插塞连接。 还公开了相关的互连结构和制造方法。
摘要:
Provided is an in-situ method of cleaning a vaporizer of an atomic layer deposition apparatus during a dielectric layer deposition process, to prevent nozzle blocking in the vaporizer and an atomic layer deposition apparatus. During the dielectric layer deposition process, the following steps are repeated: supplying a first source gas for dielectric layer deposition into a chamber of an atomic layer deposition apparatus; purging the first source gas; supplying a second source gas into the chamber of the atomic layer deposition apparatus; purging the second source gas, the in-situ method of cleaning the vaporizer is performed after supplying the first source gas for dielectric layer deposition and before supplying the first source gas again.