摘要:
The present invention can provide methods of manufacturing a thin film including hafnium titanium oxide. The methods can include introducing a first reactant including a hafnium precursor onto a substrate; chemisorbing a first portion of the first reactant to the substrate, and physisorbing a second portion of the first reactant to the substrate and the chemisorbed first portion of the first reactant; providing a first oxidant onto the substrate; forming a first thin film including hafnium oxide on the substrate; introducing a second reactant including a titanium precursor onto the first thin film; chemisorbing a first portion of the second reactant to the first thin film, and physisorbing a second portion of the second reactant to the first thin film and the chemisorbed first portion of the second reactant; providing a second oxidant onto the first thin film; and forming a second thin film including titanium oxide on the first thin film. The present invention can further provide methods of manufacturing a gate structure and a capacitor.
摘要:
A method of forming transistor gate structures in an integrated circuit device can include forming a high-k gate insulating layer on a substrate including a first region to include PMOS transistors and a second region to include NMOS transistors. A polysilicon gate layer can be formed on the high-k gate insulating layer in the first and second regions. A metal silicide gate layer can be formed directly on the high-k gate insulating layer in the first region and avoiding forming the metal-silicide in the second region. Related gate structures are also disclosed.
摘要:
A semiconductor device having a dual gate is formed on a substrate having a dielectric layer. A first metallic conductive layer is formed on the dielectric layer to a first thickness, and annealed to have a reduced etching rate. A second metallic conductive layer is formed on the first metallic conductive layer to a second thickness that is greater than the first thickness. A portion of the second metallic conductive layer formed in a second area of the substrate is removed using an etching selectivity. A first gate structure having a first metallic gate including the first and the second metallic conductive layers is formed in a first area of the substrate. A second gate structure having a second metallic gate is formed in the second area. A gate dielectric layer is not exposed to an etching chemical due to the first metallic conductive layer, so its dielectric characteristics are not degraded.
摘要:
A method of forming a semiconductor device includes forming a three-dimensional structure formed of a semiconductor on a semiconductor substrate, and isotropically doping the three-dimensional structure by performing a plasma doping process using a first source gas and a second source gas. The first source gas includes n-type or p-type impurity elements, and the second source gas includes a dilution element regardless of the electrical characteristic of a doped region.
摘要:
Example embodiments relate to a gate electrode, a method of forming the gate electrode, a transistor having the gate electrode, a method of manufacturing the transistor, a semiconductor device having the transistor and a method of manufacturing the semiconductor device. The gate electrode may include an embossing structure including a metal or a metal compound and having a first work function and a conductive layer pattern having a second work function formed on the embossing structure. A work function of the gate electrode may be adjusted between a work function of the embossing structure and a work function of the conductive layer pattern formed on the embossing structure. An NMOS transistor and a PMOS transistor having different work functions respectively may be formed on a substrate.
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:
A SONOS type non-volatile semiconductor device includes a semiconductor substrate, source/drain regions doped with impurities formed in the semiconductor substrate, a channel region formed in the semiconductor substrate between the source/drain regions, a tunnel insulation layer formed on the channel region, a charge-trapping layer formed on the tunnel insulation layer, a blocking insulation layer formed on the charge-trapping layer, and a gate electrode formed on the blocking insulation layer. The charge-trapping layer includes aluminum nitride having a chemical formula AlxNy and/or the blocking insulation layer includes aluminum nitride having a chemical formula AlpNq, such that x, y, p, and q are positive integers, x and y satisfy a relation x>y, and p and q satisfy a relation p
摘要翻译:SONOS型非易失性半导体器件包括半导体衬底,掺杂在半导体衬底中形成的杂质的源/漏区,形成在源/漏区之间的半导体衬底中的沟道区,形成在沟道区上的隧道绝缘层 形成在隧道绝缘层上的电荷俘获层,形成在电荷俘获层上的阻挡绝缘层,以及形成在阻挡绝缘层上的栅电极。 电荷捕获层包括具有化学式Al x N y Y的氮化铝和/或阻挡绝缘层包括具有化学式为Al < x,y,p和q是正整数,x和y满足关系x> y,p和q满足关系p
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 may include a gate structure having a gate insulation layer formed on a substrate, and a gate electrode formed on the gate insulation layer. A composite barrier layer may be formed on the gate structure.
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.