Abstract:
Methods of manufacturing semiconductor devices including multilayer dielectric layers are disclosed. The methods include forming a multilayer dielectric layer including metal atoms and silicon atoms on a semiconductor substrate. The multilayer dielectric layer includes at least two crystalline metal silicate layers having different silicon concentrations. The multilayer dielectric layer may be used, for example, as a dielectric layer for a capacitor, or as a blocking layer for a nonvolatile memory device.
Abstract:
A method of manufacturing a capacitor of a semiconductor device includes forming a high-k dielectric pattern on a semiconductor substrate, the high-k dielectric pattern having a pillar shape including a hole therein, forming a lower electrode in the hole of the high-k dielectric pattern, locally forming a blocking insulating pattern on an upper surface of the lower electrode, and forming an upper electrode covering the high-k dielectric pattern and the blocking insulating pattern.
Abstract:
Methods of forming a metal silicate layer and methods of fabricating a semiconductor device including the metal silicate layer are provided, the methods of forming the metal silicate layer include forming the metal silicate using a plurality of silicon precursors. The silicon precursors are homoleptic silicon precursors in which ligands bound to silicon have the same molecular structure.
Abstract:
A capacitor may include a lower electrode structure, a dielectric layer and an upper electrode structure. The lower electrode structure may include a first lower pattern, a first deformation-preventing layer pattern and a second lower pattern. The first lower pattern may have a cylindrical shape. The first deformation-preventing layer pattern may be formed on an inner surface of the first lower pattern. The second lower pattern may be formed on the first deformation-preventing layer pattern. The dielectric layer may be formed on the lower electrode structure. The upper electrode structure may be formed on the dielectric layer. Thus, the capacitor may have a high capacitance and improved electrical characteristics.
Abstract:
A method of manufacturing a capacitor of a semiconductor device includes forming a high-k dielectric pattern on a semiconductor substrate, the high-k dielectric pattern having a pillar shape including a hole therein, forming a lower electrode in the hole of the high-k dielectric pattern, locally forming a blocking insulating pattern on an upper surface of the lower electrode, and forming an upper electrode covering the high-k dielectric pattern and the blocking insulating pattern.
Abstract:
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.
Abstract:
A method of forming a semiconductor device includes loading a semiconductor substrate into a reaction chamber, and providing metal organic precursors including hafnium and zirconium into the reaction chamber to form hafnium-zirconium oxide (HfxZr1-xO; 0
Abstract translation:一种形成半导体器件的方法包括将半导体衬底加载到反应室中,并向反应室中提供包括铪和锆的金属有机前体以形成铪锆氧化物(Hf x Zr 1-x O; 0
Abstract:
In a method of forming a target layer having a uniform composition of constituent materials, a first precursor including a first central atom and a ligand is chemisorbed on a first reaction site of an object. The ligand or the first central atom is then removed to form a second reaction site. A second precursor including a second central atom is then chemisorbed on the second reaction site.
Abstract:
A semiconductor memory device has a hierarchical bit line structure. The semiconductor memory device may include first and second memory cell clusters, which share the same bit line pair and are divided operationally; third and fourth memory cell clusters, which are connected respectively corresponding to word lines coupled with the first and second memory cell clusters, and which share a bit line pair different from the bit line pair and are divided operationally; and a column pass gate for switching one of bit line pairs connected with the first to fourth memory cell clusters, to a common sense amplifier, in response to a column selection signal. Whereby an operating speed decrease caused by load of peripheral circuits connected to the bit line is improved, and the number of column pass gates is reduced substantially with a reduction of chip size.
Abstract:
A sense amplifier circuit of a semiconductor memory device and a method of operating the same, in which the sense amplifier circuit includes a bit line sense amplifier connected with a bit line to sense and amplify a signal of the bit line, and a calibration circuit calibrating a voltage level of the bit line based on a logic threshold value of the bit line sense amplifier. The bit line sense amplifier senses and amplifies the signal of the bit line after the voltage level of the bit line is calibrated. The bit line sense amplifier may include a 2-stage cascade latch, which includes a first inverter having an input terminal connected with the bit line; and a second inverter which has an input terminal connected with an output terminal of the first inverter and an output terminal connected with the bit line and is enabled/disabled in response to a sensing control signal. The calibration circuit includes a switch element that is connected between the output terminal of the first inverter and the bit line and is turned on or off in response to a calibration control signal.