Patent classifications
H01L21/32053
Method for fabricating a semiconductor device
A new method for fabricating a semiconductor device with high selection phosphoric acid solution and eliminating the step of oxide removal and thus reducing oxide loss to improve yield gain and cost saving.
SEMICONDUCTOR DEVICE PRE-CLEANING
An ammonium fluoride gas may be used to form a protection layer for one or more interlayer dielectric layers, one or more insulating caps, and/or one or more source/drain regions of a semiconductor device during a pre-clean etch process. The protection layer can be formed through an oversupply of nitrogen trifluoride during the pre-clean etch process. The oversupply of nitrogen trifluoride causes an increased formation of ammonium fluoride, which coats the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) with a thick protection layer. The protection layer protects the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) during the pre-clean process from being etched by fluorine ions formed during the pre-clean process.
METHODS AND APPARATUS FOR METAL SILICIDE DEPOSITION
Methods and apparatuses for processing substrates, such as during metal silicide applications, are provided. In one or more embodiments, a method of processing a substrate includes depositing an epitaxial layer on the substrate, depositing a metal silicide seed layer on the epitaxial layer, and exposing the metal silicide seed layer to a nitridation process to produce a metal silicide nitride layer from at least a portion of the metal silicide seed layer. The method also includes depositing a metal silicide bulk layer on the metal silicide nitride layer and forming or depositing a nitride capping layer on the metal silicide bulk layer, where the nitride capping layer contains a metal nitride, a silicon nitride, a metal silicide nitride, or a combination thereof.
Memory device with dielectric blocking layer for improving interpoly dielectric breakdown
A memory device with a dielectric blocking layer for improving interpoly dielectric breakdown is provided. Embodiments include.
Integrated circuit heat dissipation using nanostructures
An approach for heat dissipation in integrated circuit devices is provided. A method includes forming an isolation layer on an electrically conductive feature of an integrated circuit device. The method also includes forming an electrically conductive layer on the isolation layer. The method additionally includes forming a plurality of nanowire structures on a surface of the electrically conductive layer.
Apparatus comprising monocrystalline semiconductor materials and monocrystalline metal silicide materials, and related methods, electronic devices, and electronic systems
An apparatus comprising a memory array comprising wordlines, digit lines, and memory cells, with each memory cell coupled to an associated wordline and an associated digit line. Each memory cell comprises a monocrystalline silicon material adjacent to an access device, a monocrystalline metal silicide material directly contacting the monocrystalline semiconductor material, a metal material directly contacting the monocrystalline metal silicide material, and a storage device adjacent to the metal material. Electronic devices, electronic systems, and methods of forming an electronic device are also disclosed.
Methods and apparatus for metal silicide deposition
Methods and apparatuses for processing substrates, such as during metal silicide applications, are provided. In one or more embodiments, a method of processing a substrate includes depositing an epitaxial layer on the substrate, depositing a metal silicide seed layer on the epitaxial layer, and exposing the metal silicide seed layer to a nitridation process to produce a metal silicide nitride layer from at least a portion of the metal silicide seed layer. The method also includes depositing a metal silicide bulk layer on the metal silicide nitride layer and forming or depositing a nitride capping layer on the metal silicide bulk layer, where the nitride capping layer contains a metal nitride, a silicon nitride, a metal silicide nitride, or a combination thereof.
3D circuit provided with mesa isolation for the ground plane zone
A production of a device with superimposed levels of components including in this order providing on a given level N.sub.1 provided with one or more components produced at least partially in a first semiconductor layer: a stack including a second semiconductor layer capable of receiving at least one transistor channel of level N.sub.2, above said given level N.sub.1, the stack including a ground plane layer situated between the first and second semiconductor layers as well as an insulator layer separating the ground plane layer from the second semiconductor layer, one or more islands being defined in the second semiconductor layer. A gate is formed on at least one island. Distinct portions are etched in the second semiconductor ground plane layer. An isolation zone is formed around the island by the gate and the island.
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.
Integrated circuit heat dissipation using nanostructures
An approach for heat dissipation in integrated circuit devices is provided. A method includes forming an isolation layer on an electrically conductive feature of an integrated circuit device. The method also includes forming an electrically conductive layer on the isolation layer. The method additionally includes forming a plurality of nanowire structures on a surface of the electrically conductive layer.