Patent application number | Description | Published |
20080265371 | Capacitor Unit and Method of Forming the Same - A capacitor unit includes a first capacitor and a second capacitor. The first capacitor includes a first lower electrode, a first dielectric layer pattern and a first upper electrode sequentially stacked. The first capacitor includes a first control layer pattern for controlling a voltage coefficient of capacitance (VCC) of the first capacitor between the first lower electrode and the first dielectric layer pattern. The second capacitor includes a second lower electrode, a second dielectric layer pattern and a second upper electrode sequentially stacked. The second lower electrode is electrically connected to the first upper electrode, and the second upper electrode is electrically connected to the second lower electrode. The second capacitor includes a second control layer pattern for controlling a VCC of the second capacitor between the second lower electrode and the second dielectric layer pattern. | 10-30-2008 |
20090233434 | METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES - In semiconductor devices and methods of manufacturing semiconductor devices, a zirconium source having zirconium, carbon and nitrogen is provided onto a substrate to form an adsorption layer of the zirconium source on the substrate. A first purging process is performed to remove a non-adsorbed portion of the zirconium source. An oxidizing gas is provided onto the adsorption layer to form an oxidized adsorption layer of the zirconium source on the substrate. A second purging process is performed to remove a non-reacted portion of the oxidizing gas. A nitriding gas is provided on the oxidized adsorption layer to form a zirconium carbo-oxynitride layer on the substrate, and a third purging process is provided to remove a non-reacted portion of the nitriding gas. | 09-17-2009 |
20090246949 | Methods of manufacturing semiconductor devices - In a semiconductor device and a method of manufacturing a semiconductor device, a lower electrode is formed on a semiconductor substrate. A first zirconium oxide layer is formed on the lower electrode by performing a first deposition process using a first zirconium source and a first oxidizing gas. A zirconium carbo-oxynitride layer is formed on the first zirconium oxide layer by performing a second deposition process using a second zirconium source, a second oxidizing gas and a nitriding gas, and an upper electrode is formed on the zirconium carbo-oxynitride layer. A zirconium oxide-based composite layer having a high dielectric constant and a thin equivalent oxide thickness can be obtained. | 10-01-2009 |
20100170441 | Method of Forming Metal Oxide and Apparatus for Performing the Same - In a method and an apparatus for forming metal oxide on a substrate, a source gas including metal precursor flows along a surface of the substrate to form a metal precursor layer on the substrate. An oxidizing gas including ozone flows along a surface of the metal precursor layer to oxidize the metal precursor layer so that the metal oxide is formed on the substrate. A radio frequency power is applied to the oxidizing gas flowing along the surface of the metal precursor layer to accelerate a reaction between the metal precursor layer and the oxidizing gas. Acceleration of the oxidation reaction may improve electrical characteristics and uniformity of the metal oxide. | 07-08-2010 |
20100207243 | Semiconductor device and method of fabricating the same - A semiconductor device including a substrate; a bottom electrode on the substrate; a first dielectric layer on the bottom electrode, the first dielectric layer including a first metal oxide including at least one of Hf, Al, Zr, La, Ba, Sr, Ti, and Pb; a second dielectric layer on the first dielectric layer, the second dielectric layer including a second metal oxide including at least one of Hf, Al, Zr, La, Ba, Sr, Ti, and Pb, wherein the first metal oxide and the second metal oxide are different materials; a third dielectric layer on the second dielectric layer, the third dielectric layer including a metal carbon oxynitride; and an upper electrode on the third dielectric layer. | 08-19-2010 |
20100207247 | Semiconductor Integrated Circuit Device and Method of Fabricating the Same - A semiconductor integrated circuit device includes a lower electrode formed on a substrate, a first dielectric layer formed of a metal nitride layer, a metal oxynitride layer, or a combination thereof, on the lower electrode, a second dielectric layer formed on the first dielectric layer that includes a zirconium oxide layer, and an upper electrode formed on the second dielectric layer. | 08-19-2010 |
20110097905 | APPARATUS INCLUDING 4-WAY VALVE FOR FABRICATING SEMICONDUCTOR DEVICE, METHOD OF CONTROLLING VALVE, AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE APPARATUS - An apparatus and method for fabricating a semiconductor device using a 4-way valve with improved purge efficiency by improving a gas valve system by preventing dead volume from occurring are provided. The apparatus includes a reaction chamber in which a substrate is processed to fabricate a semiconductor device; a first processing gas supply pipe supplying a first processing gas into the reaction chamber; a 4-way valve having a first inlet, a second inlet, a first outlet, and a second outlet and installed at the first processing gas supply pipe such that the first inlet and the first outlet are connected to the first processing gas supply pipe; a second processing gas supply pipe connected to the second inlet of the 4-way valve to supply a second processing gas; a bypass connected to the second outlet of the 4-way valve; and a gate valve installed at the bypass. | 04-28-2011 |
20110306171 | METHODS OF FABRICATING SEMICONDUCTOR DEVICES WITH DIFFERENTIALLY NITRIDED GATE INSULATORS - An insulation layer is formed on a substrate having an NMOS region and a PMOS region defined therein. A first conductive layer is formed on the insulation layer in the PMOS region, leaving a portion of the insulation layer in the NMOS region exposed. Nitriding is performed to produce a first nitrogen concentration in the insulation layer in the NMOS region and a second nitrogen concentration less than the first nitrogen concentration in the insulation layer in the PMOS region. A second conductive layer is formed on the insulation layer and the first conductive layer and the first and second conductive layers and the insulation layer are patterned to form a first gate structure and a second gate structure in the NMOS region and the PMOS region, respectively. | 12-15-2011 |
20110306184 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE - A method of fabricating a semiconductor device includes: forming an epitaxial layer on a semiconductor substrate; forming a capping layer having a first thickness on the epitaxial layer; and oxidizing the capping layer in an oxygen atmosphere to form a first gate dielectric layer having a second thickness. | 12-15-2011 |
20120032332 | Semiconductor Devices Having A Diffusion Barrier Layer and Methods of Manufacturing the Same - Methods of manufacturing a semiconductor device include forming a gate insulation layer including a high-k dielectric material on a substrate that is divided into a first region and a second region; forming a diffusion barrier layer including a first metal on a second portion of the gate insulation layer in the second region; forming a diffusion layer on the gate insulation layer and the diffusion barrier layer; and diffusing an element of the diffusion layer into a first portion of the gate insulation layer in the first region. | 02-09-2012 |
20120034752 | METHODS OF FORMING A GATE STRUCTURE AND METHODS OF MANUFACTURING A SEMICONDUCTOR DEVICE USING THE SAME - In a method of forming a gate structure, a gate pattern including a gate insulation layer pattern and a gate electrode sequentially stacked on a substrate is formed. The gate electrode includes a metal. A first plasma process is performed on the gate pattern using a reaction gas to reduce an oxidized edge portion of the gate electrode. The reaction gas includes nitrogen. A spacer is formed on a sidewall of the gate pattern. A threshold voltage is adjusted by reducing the oxidized edge portion of the gate electrode. Therefore, a semiconductor device including the gate pattern has excellent electrical characteristics. | 02-09-2012 |
20120070975 | Methods of Forming Gate Structure and Methods of Manufacturing Semiconductor Device Including the Same - A method of forming agate structure having an improved electric characteristic is disclosed. A gate insulating layer is formed on a substrate and a metal layer is formed on the gate insulating layer. Then, an amorphous silicon layer is formed on the metal layer by a physical vapor deposition (PVD) process. An impurity doped polysilicon layer is formed on the amorphous silicon layer. Formation of an oxide layer at an interface between the amorphous silicon layer and the metal layer may be prevented. | 03-22-2012 |
20120083111 | Methods of Manufacturing a Semiconductor Device - There is provided a method of manufacturing a semiconductor device. In the method, a gate insulation layer including a high-k dielectric material is formed on a substrate. An etch stop layer is formed on the gate insulation layer. A metal layer is formed on the etch stop layer. A hard mask including amorphous silicon is formed on the metal layer. The metal layer is patterned using the hard mask as an etching mask to form a metal layer pattern. | 04-05-2012 |
20120309144 | METHODS OF FORMING MOSFET DEVICES USING NITROGEN-INJECTED OXIDE LAYERS TO FORM GATE INSULATING LAYERS HAVING DIFFERENT THICKNESSES - In some embodiments of the inventive subject matter, methods include forming an oxide layer on a semiconductor substrate, injecting nitrogen into the oxide layer to form a nitrogen injection layer and to change the oxide layer to an oxynitride layer, removing a part of the oxynitride layer to leave a portion of the oxynitride layer in a first area and expose the nitrogen injection layer in a second area and forming an insulating layer comprising a portion on the portion of the oxynitride layer in the first area and a portion on the nitrogen injection layer in the second area. The insulating layer may have a higher dielectric constant than the oxide layer. | 12-06-2012 |
20130029477 | APPARATUS INCLUDING 4-WAY VALVE FOR FABRICATING SEMICONDUCTOR DEVICE, METHOD OF CONTROLLING VALVE, AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE APPARATUS - An apparatus and method for fabricating a semiconductor device using a 4-way valve with improved purge efficiency by improving a gas valve system by preventing dead volume from occurring are provided. The apparatus includes a reaction chamber in which a substrate is processed to fabricate a semiconductor device; a first processing gas supply pipe supplying a first processing gas into the reaction chamber; a 4-way valve having a first inlet, a second inlet, a first outlet, and a second outlet and installed at the first processing gas supply pipe such that the first inlet and the first outlet are connected to the first processing gas supply pipe; a second processing gas supply pipe connected to the second inlet of the 4-way valve to supply a second processing gas; a bypass connected to the second outlet of the 4-way valve; and a gate valve installed at the bypass. | 01-31-2013 |
20130280881 | METHOD OF FABRICATING A SEMICONDUCTOR DEVICE - A semiconductor device including a substrate; a bottom electrode on the substrate; a first dielectric layer on the bottom electrode, the first dielectric layer including a first metal oxide including at least one of Hf, Al, Zr, La, Ba, Sr, Ti, and Pb; a second dielectric layer on the first dielectric layer, the second dielectric layer including a second metal oxide including at least one of Hf, Al, Zr, La, Ba, Sr, Ti, and Pb, wherein the first metal oxide and the second metal oxide are different materials; a third dielectric layer on the second dielectric layer, the third dielectric layer including a metal carbon oxynitride; and an upper electrode on the third dielectric layer. | 10-24-2013 |
20140035050 | SEMICONDUCTOR DEVICES HAVING A DIFFUSION BARRIER LAYER AND METHODS OF MANUFACTURING THE SAME - Methods of manufacturing a semiconductor device include forming a gate insulation layer including a high-k dielectric material on a substrate that is divided into a first region and a second region; forming a diffusion barrier layer including a first metal on a second portion of the gate insulation layer in the second region; forming a diffusion layer on the gate insulation layer and the diffusion barrier layer; and diffusing an element of the diffusion layer into a first portion of the gate insulation layer in the first region. | 02-06-2014 |
20140070325 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor device includes a first interface film on a first area of a substrate, the first interface film including a first growth interface film and a second growth interface film on a lower portion of the first growth interface film, a first dielectric film on the first interface film, and a first gate electrode on the first dielectric film. | 03-13-2014 |
20140141599 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE - A method of fabricating a semiconductor device includes: forming an epitaxial layer on a semiconductor substrate; forming a capping layer having a first thickness on the epitaxial layer; and oxidizing the capping layer in an oxygen atmosphere to form a first gate dielectric layer having a second thickness. | 05-22-2014 |
20140273392 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND METHOD OF FABRICATING THE SAME - A semiconductor integrated circuit device includes a lower electrode formed on a substrate, a first dielectric layer formed of a metal nitride layer, a metal oxynitride layer, or a combination thereof, on the lower electrode, a second dielectric layer formed on the first dielectric layer that includes a zirconium oxide layer, and an upper electrode formed on the second dielectric layer. | 09-18-2014 |