Abstract:
Semiconductor devices and methods of forming the semiconductor device are provided, the semiconductor devices including a first dielectric layer on a substrate, and a second dielectric layer on the first dielectric layer. The first dielectric layer has a carbon concentration lower than the second dielectric layer.
Abstract:
Provided is a test element group (TEG) pattern for detecting a void in a device isolation layer. The TEG pattern includes active regions which are parallel to each other and extend in a first direction, a device isolation layer that separates the active regions, a first contact that is formed across the device isolation layer and a first one of the active regions that contacts a surface of the device isolation layer, and a second contact that is formed across the device isolation layer and a second one of the active regions that contacts another surface of the device isolation layer.
Abstract:
A semiconductor device may include a semiconductor substrate having a first region and a second region. The nitrogen-incorporated active region may be formed within the first region. A first gate electrode may be formed on the nitrogen-incorporated active region. A first gate dielectric layer may be interposed between the nitrogen-incorporated active region and the first gate electrode. The first gate dielectric layer may include a first dielectric layer and a second dielectric layer. The second dielectric layer may be a nitrogen contained dielectric layer. A second gate electrode may be formed on the second region. A second gate dielectric layer may be interposed between the second region and the second gate electrode. The first gate dielectric layer may have the same or substantially the same thickness as the second gate dielectric layer, and the nitrogen contained dielectric layer may contact with the nitrogen-incorporated active region.
Abstract:
A semiconductor device includes a semiconductor substrate comprising a group III element and a group V element, and a gate structure on the semiconductor substrate. The semiconductor substrate includes a first region which contacts a bottom surface of the gate structure and a second region which is disposed under the first region. The concentration of the group III element in the first region is lower than that of the group V element in the first region, and the concentration of the group III element in the second region is substantially equal to that of the group V element in the second region.
Abstract:
A method of fabricating a semiconductor integrated circuit (IC) device can include forming a first silicide layer on at least a portion of a transistor on a substrate, forming nitrogen in the first silicide layer to form a second silicide layer, forming a first stress layer having a tensile stress on the substrate having the transistor formed thereon, and irradiating the first stress layer with ultraviolet (UV) light to form a second stress layer having greater tensile stress than the first stress layer.
Abstract:
Transistors that include multilayered dielectric films on a channel region are provided. The multilayered dielectric comprises a lower dielectric film that may have a thickness that is at least 50% the thickness of the multilayered dielectric film and that comprises a metal oxide, a metal silicate, an aluminate, or a mixture thereof, and an upper dielectric film on the lower dielectric film, the upper dielectric film comprising a Group III metal oxide, Group III metal nitride, Group XIII metal oxide or Group XIII metal nitride. A gate electrode is provided on the multilayered dielectric film.
Abstract:
There are provided methods of fabricating a metal silicate layer on a semiconductor substrate using an atomic layer deposition technique. The methods include performing a metal silicate layer formation cycle at least one time in order to form a metal silicate layer having a desired thickness. The metal silicate layer formation cycle includes an operation of repeatedly performing a metal oxide layer formation cycle K times and an operation of repeatedly performing a silicon oxide layer formation cycle Q times. K and Q are integers ranging from 1 to 10 respectively. The metal oxide layer formation cycle includes the steps of supplying a metal source gas to a reactor containing the substrate, exhausting the metal source gas remaining in a reactor to clean the inside of the reactor, and then supplying an oxide gas into the reactor. The silicon oxide layer formation cycle includes supplying a silicon source gas, exhausting the silicon source gas remaining in the reactor to clean the inside of the reactor, and then supplying an oxide gas into the reactor.
Abstract:
In a method of manufacturing a dielectric structure, after a first dielectric layer is formed on a substrate by using a metal oxide doped with silicon, the substrate is placed on a susceptor of a chamber. By treating the first dielectric layer with a plasma in controlling a voltage difference between the susceptor and a ground, a second dielectric layer is formed on the first dielectric layer. The second dielectric layer including a metal oxynitride doped with silicon having enough content of nitrogen is formed on the first dielectric layer. Therefore, dielectric properties of the dielectric structure comprising the first and the second dielectric layers can be improved and a leakage current can be greatly decreased. By adapting the dielectric structure to a gate insulation layer and/or to a dielectric layer of a capacitor or of a non-volatile semiconductor memory device, capacitances and electrical properties can be improved.
Abstract:
A method of forming a semiconductor device includes forming a gate electrode and source/drain regions in a semiconductor substrate, forming a first capping nitride layer covering the gate electrode and the source/drain regions, the first capping nitride layer including a Si—H rich SiN layer, annealing the semiconductor substrate having the first capping nitride layer, and removing the first capping nitride layer.
Abstract:
Semiconductor devices and methods of forming the semiconductor device are provided, the semiconductor devices including a first dielectric layer on a substrate, and a second dielectric layer on the first dielectric layer. The first dielectric layer has a carbon concentration lower than the second dielectric layer.