摘要:
A method for fabricating a transistor including a bulb-type recess channel includes forming a bulb-type recess pattern in a substrate, forming a gate insulating layer over the substrate and the bulb-type recess pattern, forming a first gate conductive layer over the gate insulating layer, forming a void movement blocking layer over the first gate conductive layer in the bulb-type recess pattern, and forming a second gate conductive layer over the void movement blocking layer and the first gate conductive layer.
摘要:
A semiconductor device includes a first conductive layer, a first intermediate structure over the first conductive layer, a second intermediate structure over the first intermediate structure, and a second conductive layer over the second intermediate structure. The first intermediate structure includes a metal silicide layer and a nitrogen containing metal layer. The second intermediate structure includes at least a nitrogen containing metal silicide layer.
摘要:
A dual polysilicon gate of a semiconductor device includes a substrate having a first region, a second region, and a third region, a channel region with a recessed structure formed in the first region of the substrate, a gate insulating layer formed over the substrate, a first polysilicon layer filled into the channel region, and formed over the gate insulating layer of the first and second regions, a second polysilicon layer formed over the gate insulating layer of the third region, and an insulating layer doped with an impurity, and disposed inside the first polysilicon layer in the channel region.
摘要:
A method for fabricating a semiconductor device includes forming a gate insulation layer over a substrate, forming a first gate conductive layer over the gate insulation layer, forming a barrier metal over the first gate conductive layer, sequentially forming a second gate conductive layer and a gate hard mask over the barrier metal, patterning the gate hard mask, the second gate conductive layer, the barrier metal, the first gate conductive layer, and the gate insulation layer to form a gate pattern, and performing a plasma selective gate re-oxidation process on the gate pattern.
摘要:
The present invention relates to a semiconductor device and a method of manufacture thereof, being capable of improving the high integration by increasing a cell region while securing the reliability of device and the process margin through forming a cell region and a core region with the stacking structure.
摘要:
A semiconductor device includes a first conductive layer, a first intermediate structure over the first conductive layer, a second intermediate structure over the first intermediate structure, and a second conductive layer over the second intermediate structure. The first intermediate structure includes a metal silicide layer and a nitrogen containing metal layer. The second intermediate structure includes at least a nitrogen containing metal silicide layer.
摘要:
Disclosed is a method for manufacturing a semiconductor device. This method includes the step of forming a diffusion barrier film, which is interposed between a silicon film and a metal film and functions to prevent diffusion between the silicon and metal films. The diffusion barrier film is formed of a WSixNy film or a WSix film by using an ALD process.
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 gate electrode with a double diffusion barrier and a fabrication method of a semiconductor device including the same are provided. The gate electrode of a semiconductor device includes: a silicon electrode; a double diffusion barrier formed on the silicon electrode and including at least a crystalline tungsten nitride-based layer; and a metal electrode formed on the double diffusion barrier.
摘要:
Disclosed are a semiconductor devices and method of fabricating the same. Anti-etch films are formed in the top corners of the device isolation film using a material that has a different etch selectivity ratio from nitride or oxide and is not etched in an oxide gate pre-cleaning process. It is thus possible to prevent formation of a moat at the top corners of the device isolation film and the gate oxide film from being thinly formed, thereby improving reliability and electrical characteristics of the device.