摘要:
In some embodiments of the present invention, methods of forming a tantalum carbon nitride layer include introducing a source gas including a tantalum metal complex onto a substrate, wherein one or more of the ligands of the tantalum metal complex include nitrogen and one or more of the ligands of the tantalum metal complex include carbon; and thermally decomposing the tantalum metal complex to form a tantalum carbon nitride layer on the substrate. In some embodiments, the tantalum metal complex includes Ta(NR1)(NR2R3)3, wherein R1, R2 and R3 are each independently H or a C1-C6 alkyl group. In some embodiments, the tantalum metal complex may be [Ta(═NC(CH3)2C2H5)(N(CH3)2)3]. Methods of forming a gate structure, methods of manufacturing dual gate electrodes and methods of manufacturing a capacitor including tantalum carbon nitride are also provided herein.
摘要翻译:在本发明的一些实施例中,形成氮化钽层的方法包括将包含钽金属络合物的源气体引入到基底上,其中一个或多个钽金属络合物的配体包括氮和一个或多个 钽金属络合物的配体包括碳; 并且在所述衬底上热分解所述钽金属络合物以形成钽碳氮化物层。 在一些实施方案中,钽金属络合物包括Ta(NR 1)3(NR 2 R 3)3, 其中R 1,R 2和R 3各自独立地为H或C 1 -C 3 - 6烷基。 在一些实施方案中,钽金属络合物可以是[Ta(-NC(CH 3)2)2 H 2 H 5, (N(CH 3)2)3)3。 形成栅极结构的方法,制造双栅电极的方法以及制造包括氮化钽的电容器的方法也在本文中提供。
摘要:
Provided herein is a non-volatile semiconductor device that includes a tunnel insulation layer pattern formed on a semiconductor substrate, a charge trapping layer pattern formed on the tunnel insulation layer pattern, a blocking dielectric layer pattern formed on the charge trapping layer pattern and a tantalum carbon nitride layer pattern formed on the blocking dielectric layer pattern. The tantalum carbon nitride layer pattern may be formed by a CVD process using a source gas including a tantalum metal complex, wherein one or more of ligands of the tantalum metal complex include nitrogen and carbon. Since the non-volatile semiconductor device includes the tantalum carbon nitride layer pattern as an electrode, the non-volatile semiconductor device according to embodiments of the invention may have improved response speed and require relatively low driving voltage.
摘要:
A semiconductor device includes a gate structure on a channel region of a semiconductor substrate adjacent to a source/drain region therein and a surface insulation layer directly on the source/drain region of the substrate adjacent to the gate structure. The device further includes a spacer on a sidewall of the gate structure adjacent to the source/drain region. A portion of the surface insulation layer adjacent the gate structure is sandwiched between the substrate and the spacer. An interface between the surface insulation layer and the source/drain region includes a plurality of interfacial states. Portions of the source/drain region immediately adjacent the interface define a carrier accumulation layer having a greater carrier concentration than other portions thereof. The carrier accumulation layer extends along the interface under the spacer. Related methods are also discussed.
摘要:
Methods of manufacturing semiconductor devices having at least one single crystal silicon layer are provided. Pursuant to these methods, a first seed layer that includes silicon is formed. A first non-single crystalline silicon layer is then formed on the first seed layer. The first non-single crystalline silicon layer is irradiated with a laser to transform the first non-single crystalline silicon layer into a first single crystalline silicon layer. Corresponding semiconductor devices are also disclosed.
摘要:
In methods of manufacturing a recessed channel array transistor, a recess may be formed in an active region of a substrate. A plasma oxidation process may be performed on the substrate to form a preliminary gate oxide layer on an inner surface of the recess and an upper surface of the substrate. Moistures may be absorbed in a surface of the preliminary gate oxide layer to form a gate oxide layer. A gate electrode may be formed on the gate oxide layer to fill up the recess. Source/drain regions may be formed in an upper surface of the substrate at both sides of the gate electrode. Thus, the oxide layer may have a uniform thickness distribution and a dense structure.
摘要:
Methods of fabricating semiconductor devices include forming a transistor on and/or in a semiconductor substrate, wherein the transistor includes a source/drain region and a gate pattern disposed on a channel region adjacent the source/drain region. An insulating layer is formed on the transistor and patterned to expose the source/drain region. A semiconductor source layer is formed on the exposed source/drain region and on an adjacent portion of the insulating layer. A metal source layer is formed on the semiconductor source layer. Annealing, is performed to form a first metal-semiconductor compound region on the source/drain region and a second metal-semiconductor compound region on the adjacent portion of the insulating layer. The first metal-semiconductor compound region may be thicker than the second metal-semiconductor compound region. The metal source layer may include a metal layer and a metal nitride barrier layer.
摘要:
In a fin field effect transistor (FET), an active pattern protrudes in a vertical direction from a substrate and extends across the substrate in a first horizontal direction. A first silicon nitride pattern is formed on the active pattern, and a first oxide pattern and a second silicon nitride pattern are sequentially formed on the substrate and on a sidewall of a lower portion of the active pattern. A device isolation layer is formed on the second silicon nitride pattern, and a top surface of the device isolation layer is coplanar with top surfaces of the oxide pattern and the second silicon nitride pattern. A buffer pattern having an etching selectivity with respect to the second silicon nitride pattern is formed between the first oxide pattern and the second silicon nitride pattern. Internal stresses that can be generated in sidewalls of the active pattern are sufficiently released and an original shape of the first silicon nitride pattern remains unchanged, thereby improving electrical characteristics of the fin FET.
摘要:
In a method of manufacturing a stacked semiconductor device, a seed layer including impurity regions may be prepared. A first insulation interlayer pattern having a first opening may be formed on the seed layer. A first SEG process may be carried out to form a first plug partially filling the first opening. A second SEG process may be performed to form a second plug filling the first opening. A third SEG process may be carried out to form a first channel layer on the first insulation interlayer pattern. A second insulation interlayer may be formed on the first channel layer. The second insulation interlayer, the first channel layer and the second plug arranged on the first plug may be removed to expose the first plug. The first plug may be removed to form a serial opening. The serial opening may be filled with a metal wiring.
摘要:
Disclosed is a fin transistor and a planar transistor and a method of forming the same. The fin transistor and the planar transistor are formed to have gate electrodes with similar thicknesses by selectively recessing a semiconductor substrate in a planar region where the planar transistor is formed.
摘要:
A method of forming an integrated circuit can be provided by successively laterally forming single crystalline thin film regions from an amorphous thin film using a lower single crystalline seed layer.