COATING METHODS

Surfatek employs a wide range of proprietary and traditional surface and coating technologies, including various forms of Physical Vapor Deposition (PVD) and Chemical Vapor Deposition (CVD) to create the exact performance that is required. Below is a list of some of the traditional methods used at Surfatek to deliver the performance you require.

Traditional Coating Technologies

Cathodic Arc Vapor Deposition (CAVD)

 

Cathodic arc deposition or Arc-PVD is a physical vapor deposition technique in which an electric

arc is used to vaporize material from a cathode target. The vaporized material then condenses on

a substrate, forming a thin film. The technique can be used to deposit metallic, ceramic, and composite films.

DC Sputtering

 

Sputtering is used extensively in the semiconductor industry to deposit thin films of various materials in integrated circuit processing. Thin antireflection coatings on glass for optical applications are also deposited by sputtering. Because of the low substrate temperatures used, sputtering is an ideal method to deposit contact metals for thin-film transistors. Perhaps the most familiar products of sputtering are low-emissivity coatings on glass, used in double-pane window assemblies. The coating is a multilayer containing silver and metal oxides such as zinc oxide, tin oxide, or titanium dioxide.

RF Sputtering

Charge build-up on insulating targets can be avoided with the use of RF sputtering where the sign of the anode-cathode bias is varied at a high rate (commonly 13.56 MHz).[1] RF sputtering works well to produce highly insulating oxide films.

Atomic Layer Deposition (ALD)

ALD is a thin film deposition technique that is based on the sequential use of a gas phase chemical process. The majority of ALD reactions use two chemicals, typically called precursors. These precursors react with a surface one at a time in a sequential, self-limiting manner. By exposing the precursors to the growth surface repeatedly, a thin film is deposited.

Atomic Layer Deposition (ALD)

ALD is a thin film deposition technique that is based on the sequential use of a gas phase chemical process. The majority of ALD reactions use two chemicals, typically called precursors. These precursors react with a surface one at a time in a sequential, self-limiting manner. By exposing the precursors to the growth surface repeatedly, a thin film is deposited.

Plasma Enhanced ALD (PEALD)

PEALD is a thin film deposition technique that is based on the sequential use of a gas phase chemical process with the added benefit of RF, DC or AC plasma to speed the reactions and to be able to created compounds that are not usually formed via ALD.

Evaporation

Evaporation is a common method of thin-film deposition. The source material is evaporated in a vacuum. The vacuum allows vapor particles to travel directly to the target object (substrate), where they condense back to a solid state. Evaporation is used in microfabrication, and to make macro-scale products such as metalic plastic film.

Plasma Enhanced CVD (PECVD)

PECVD is a process used to deposit thin films from a gas state (vapor) to a solid state on a substrate. Chemical reactions are involved in the process, which occur after creation of a plasma of the reacting gases. The plasma is generally created by RF (AC) frequency or DC discharge between two electrodes, the space between which is filled with the reacting gases.

Chemical Vapor Deposition (CVD)

CVD is a chemical process used to produce high-purity, high-performance solid materials. The process is often used in the semiconductor industry to produce thin films. In typical CVD, the wafer (substrate) is exposed to one or more volatile precursors, which react and/or decompose on the substrate surface to produce the desired deposit. Frequently, volatile by-products are also produced, which are removed by gas flow through the reaction chamber.

Combination Coatings

In addition to all the individual coatings listed above, Surfatek can mix and match the coatings to obtain the specific performance you require for your product. Please visit our Custom page for more information.

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