An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

Semiconductor device, and manufacturing method thereof

The present invention relates to a process of making a zinc-oxide-based thin film semiconductor, for use in a transistor, comprising thin film deposition onto a substrate comprising providing a plurality of gaseous materials comprising at least first, second, and third gaseous materials, wherein the first gaseous material is a zinc-containing volatile material and the second gaseous material is reactive therewith such that when one of the first or second gaseous materials are on the surface of the substrate the other of the first or second gaseous materials will react to deposit a layer of material on the substrate and wherein the third gaseous material is inert with respect to reacting with the first or second gaseous materials.

Process for atomic layer deposition

Process gas discharged from a bypass pipe to a gas exhaust system can be prevented from diffusing back to the inside of a process chamber without having to install a dedicated vacuum pump at the downstream side of the bypass pipe. The substrate processing apparatus includes a process chamber accommodating a substrate, a gas supply system supplying process gas from a process gas source to the process chamber for processing the substrate, a gas exhaust system configured to exhaust the process chamber, two or more vacuum pumps installed in series at the gas exhaust system, and a bypass pipe connected between the gas supply system and the gas exhaust system. The most upstream one of the vacuum pumps is a mechanical booster pump, and the bypass pipe is connected between the mechanical booster pump and the rest vacuum pumps located at a downstream side of the mechanical booster pump.

Substrate Processing Apparatus

Embodiments of the present invention relate to an apparatus and method of plasma assisted deposition by generation of a plasma adjacent a processing region. One embodiment of the apparatus comprises a substrate processing chamber including a top shower plate, a power source coupled to the top shower plate, a bottom shower plate, and an insulator disposed between the top shower plate and the bottom shower plate. In one aspect, the power source is adapted to selectively provide power to the top shower plate to generate a plasma from the gases between the top shower plate and the bottom shower plate. In another embodiment, a power source is coupled to the top shower plate and the bottom shower plate to generate a plasma between the bottom shower plate and the substrate support. One embodiment of the method comprises performing in a single chamber one or more of the processes including, but not limited to, cyclical layer deposition, combined cyclical layer deposition and plasma-enhanced chemical vapor deposition; plasma-enhanced chemical vapor deposition; and/or chemical vapor deposition.

Apparatus and method for plasma assisted deposition

An apparatus and method for performing a cyclical layer deposition process, such as atomic layer deposition is provided. In one aspect, the apparatus includes a substrate support having a substrate receiving surface, and a chamber lid comprising a tapered passageway extending from a central portion of the chamber lid and a bottom surface extending from the passageway to a peripheral portion of the chamber lid, the bottom surface shaped and sized to substantially cover the substrate receiving surface. The apparatus also includes one or more valves coupled to the gradually expanding channel, and one or more gas sources coupled to each valve.

Gas delivery apparatus for atomic layer deposition

A lid assembly and a method for ALD is provided. In one aspect, the lid assembly includes a lid plate having an upper and lower surface, a manifold block disposed on the upper surface having one or more cooling channels formed therein, and one or more valves disposed on the manifold block. The lid assembly also includes a distribution plate disposed on the lower surface having a plurality of apertures and one or more openings formed there-through, and at least two isolated flow paths formed within the lid plate, manifold block, and distribution plate. A first flow path of the at least two isolated flow paths is in fluid communication with the one or more openings and a second flow path of the at least two isolated flow paths is in fluid communication with the plurality of apertures.

Chamber hardware design for titanium nitride atomic layer deposition

A method for forming a metal interconnect on a substrate is provided. The method includes depositing a refractory metal-containing barrier layer having a thickness less than about 20 angstroms on at least a portion of a metal layer by alternately introducing one or more pulses of a metal-containing compound and one or more pulses of a nitrogen-containing compound. The method also includes depositing a seed layer on at least a portion of the barrier layer, and depositing a second metal layer on at least a portion of the seed layer. The barrier layer provides adequate barrier properties and allows the grain growth of the metal layer to continue across the barrier layer into the second metal layer thereby enhancing the electrical performance of the interconnect.

Integration of ALD tantalum nitride and alpha-phase tantalum for copper metallization application

A method and apparatus of depositing a tungsten film by cyclical deposition in the formation of tungsten silicide for use in capacitor structures is provided. One embodiment of forming an electrode for a capacitor structure comprises depositing a polysilicon layer over a structure and depositing a tungsten layer over the polysilicon layer by cyclical deposition. The tungsten layer is annealed to form a tungsten silicide layer from the polysilicon layer and the tungsten layer. The tungsten silicide layer acts as one electrode in the capacitor structure. In one aspect, the tungsten silicide layer may be used to form three-dimensional capacitor structures, such as trench capacitors, crown capacitors, and other types of capacitors. In another aspect, the tungsten silicide layer may be used to form capacitor structures which comprise a hemi-spherical silicon grain layer or a rough polysilicon layer.

Deposition of tungsten for the formation of conformal tungsten silicide

Methods of depositing titanium nitride (TiN) films on a substrate are disclosed. The titanium nitride (TiN) films may be formed using a cyclical deposition process by alternately adsorbing a titanium-containing precursor and a NH3 gas on the substrate. The titanium-containing precursor and the NH3 gas react to form the titanium nitride (TiN) layer on the substrate. The titanium nitride (TiN) films are compatible with integrated circuit fabrication processes. In one integrated circuit fabrication process, an interconnect structure is fabricated. The titanium nitride films may also be used as an electrode of a three-dimensional capacitor structure such as for example, trench capacitors and crown capacitors.

Formation of titanium nitride films using a cyclical deposition process

A semiconductor system includes a body defining a processing chamber, a holder disposed within the processing chamber to support the substrate, and a fluid injection assembly to facilitate sequential deposition of films. In one embodiment, the fluid injection assembly is coupled to the body and includes high-flow-velocity valves, a baffle plate, and a support. The support is connected between the valves and the baffle plate. In one embodiment the valves are coupled to the support through a W-seal to direct a flow of fluid into the processing chamber, with the flow of fluid having an original direction and a velocity associated therewith. The baffle plate is disposed in the flow path to disperse the flow of fluids in a plane extending transversely to the original direction. In this manner, the baffle plate varies the velocity of the flow of fluids.

Michael Yang

Papers

Chamber hardware design for titanium nitride atomic layer deposition

Integration of ALD tantalum nitride and alpha-phase tantalum for copper metallization application

Deposition of tungsten for the formation of conformal tungsten silicide

Formation of titanium nitride films using a cyclical deposition process

Processing chamber and method of distributing process fluids therein to facilitate sequential deposition of films