Patent classifications
H01L21/28506
Methods, apparatus, and system for protecting cobalt formations from oxidation during semiconductor device formation
Methods comprising forming a cobalt formation on an active feature of a semiconductor device, wherein the semiconductor device comprises an inactive feature above the cobalt formation; forming a cap on the cobalt formation; removing at least a portion of the inactive feature, wherein the cobalt formation is substantially not removed; forming a dielectric material above the cap; and forming a first contact to the cobalt formation. Systems configured to implement the methods. Semiconductor devices produced by the methods.
METHODS OF MITIGATING COBALT DIFFUSION IN CONTACT STRUCTURES AND THE RESULTING DEVICES
One illustrative method disclosed includes, among other things, forming a first dielectric layer and forming first and second conductive structures comprising cobalt embedded in the first dielectric layer. A second dielectric layer is formed above and contacting the first dielectric layer. The first and second dielectric layers comprise different materials, and a portion of the second dielectric layer comprises carbon or nitrogen. A first cap layer is formed above the first and second conductive structures and the second dielectric layer.
Methods Of Operating A Spatial Deposition Tool
Apparatus and methods to process one or more wafers are described. A spatial deposition tool comprises a plurality of substrate support surfaces on a substrate support assembly and a plurality of spatially separated and isolated processing stations. The spatially separated isolated processing stations have independently controlled temperature, processing gas types, and gas flows. In some embodiments, the processing gases on one or multiple processing stations are activated using plasma sources. The operation of the spatial tool comprises rotating the substrate assembly in a first direction, and rotating the substrate assembly in a second direction, and repeating the rotations in the first direction and the second direction until a predetermined thickness is deposited on the substrate surface(s).
Metal insulator metal capacitor with extended capacitor plates
A capacitor structure is described. A metal insulator metal capacitor in an integrated circuit device includes a first dielectric layer on a substrate. The first dielectric layer has a linear trench feature in which the capacitor is disposed. A bottom capacitor plate is in a lower portion of the trench. The bottom capacitor plate has an extended top face so that the extended top face extends upwards in a central region of the bottom capacitor plate metal relative to side regions. A high-k dielectric layer is disposed over the extended top face of the bottom capacitor plate. A top capacitor plate is disposed in a top, remainder portion of the trench on top of the high-k dielectric layer.
METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
A method of manufacturing a semiconductor device according to the present invention includes a step of forming an opening portion in a resist coated on a substrate, a step of coating a thermally-shrinking shrink agent on the resist to fill the opening portion with the shrink agent, a shrinking step of heating and thermally shrinking the shrink agent to reduce a width of the opening portion, a removing step of removing the shrink agent after the shrinking step, a step of forming a metal layer on the resist and in the opening portion after the removing step and a step of removing a portion of the metal layer above the resist and the resist, wherein in the shrinking step, a side surface of the resist forming the opening portion forms a curved surface protruding toward a center portion of the opening portion.
METHODS, APPARATUS, AND SYSTEM FOR PROTECTING COBALT FORMATIONS FROM OXIDATION DURING SEMICONDUCTOR DEVICE FORMATION
Methods comprising forming a cobalt formation on an active feature of a semiconductor device, wherein the semiconductor device comprises an inactive feature above the cobalt formation; forming a cap on the cobalt formation; removing at least a portion of the inactive feature, wherein the cobalt formation is substantially not removed; forming a dielectric material above the cap; and forming a first contact to the cobalt formation. Systems configured to implement the methods. Semiconductor devices produced by the methods.
Method for forming semiconductor device structure
A method for forming a semiconductor device structure is provided. The method includes providing a semiconductor substrate, a gate structure, a first doped structure, a second doped structure, and a dielectric layer. The method includes forming a through hole in the dielectric layer. The method includes performing a physical vapor deposition process to deposit a first metal layer over the first doped structure exposed by the through hole. The method includes reacting the first metal layer with the first doped structure to form a metal semiconductor compound layer between the first metal layer and the first doped structure. The method includes removing the first metal layer. The method includes performing a chemical vapor deposition process to deposit a second metal layer in the through hole. The method includes forming a conductive structure in the through hole and over the second metal layer.
Methods for depositing fluorine/carbon-free conformal tungsten
Provided are atomic layer deposition methods to deposit a tungsten film or tungsten-containing film using a tungsten-containing reactive gas comprising one or more of tungsten pentachloride, a compound with the empirical formula WCl.sub.5 or WCl.sub.6.
Enhanced spatial ALD of metals through controlled precursor mixing
Methods of depositing a film by atomic layer deposition are described. The methods comprise exposing a substrate surface to a first process condition comprising a first reactive gas and a second reactive gas and exposing the substrate surface to a second process condition comprising the second reactive gas. The first process condition comprises less than a full amount of the second reactive gas for a CVD process.
CVD BASED OXIDE-METAL MULTI STRUCTURE FOR 3D NAND MEMORY DEVICES
Implementations described herein generally relate to a method for forming a metal layer and to a method for forming an oxide layer on the metal layer. In one implementation, the metal layer is formed on a seed layer, and the seed layer helps the metal in the metal layer nucleate with small grain size without affecting the conductivity of the metal layer. The metal layer may be formed using plasma enhanced chemical vapor deposition (PECVD) and nitrogen gas may be flowed into the processing chamber along with the precursor gases. In another implementation, a barrier layer is formed on the metal layer in order to prevent the metal layer from being oxidized during subsequent oxide layer deposition process. In another implementation, the metal layer is treated prior to the deposition of the oxide layer in order to prevent the metal layer from being oxidized.