thin film partners

Five reasons to use custom masking boots in a conformal coating process

The problems of masking and de-masking Parylene on a circuit board assembly compared to traditional liquid conformal coating

There are several reasons why Parylene conformal coating has a more difficult masking and de-masking process compared to normal liquid conformal coatings.

These reasons include:

The science behind thin film Nano-coatings in protecting electronic circuit boards from harsh environments

Nano-coatings are being used all the time to protect electronic circuit board assemblies.

This is because the base materials they are formulated from are fluorinated polymers that have very different properties to traditional conformal coatings.

So, how are the Nano-coatings different to conformal coatings?

To understand the properties of a Nano-coating you have to understand what a fluoropolymer coating is made of.

Five key facts about plasma cleaning and surface treatment

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Here are five key reasons to use plasma cleaning and surface treatment to improve surface properties:

How was the new Molecular Vapor Deposition (MVD) technology developed for protecting electronic circuit boards?

The Molecular Vapor Deposition (MVD®) process was found in 2003 by the SPTS MVD group located in San Jose, California.

SPTS provided Nano-film technology processing, equipment and coating services, supplying to multiple markets including:

Five key facts about Parylene for protecting electronic circuit boards

Parylene is a high performance coating used to protect electronic circuit boards against environmental attack.

It is an organic polymer thin film that is created via a controlled Chemical Vapor Deposition (CVD) process.

This involves the vaporization and subsequent pyrolysis of a feedstock (dimer), resulting in the formation of a monomer that is then polymerized in a vacuum chamber (at low pressure and at room temperature).

What sectors are acrylic conformal coatings used in protecting electronic circuit boards?

Acrylic conformal coatings are used in protecting circuit boards in every sector of the modern world.

Historically, they are the oldest material to be used as a conformal coating and the acrylic resin continues to dominate for the time being.

There are many reasons why the acrylic conformal coating is the most popular.

These reasons include:

Ten reasons to use Molecular Vapor Deposition (MVD) in protecting electronic circuit boards

Molecular Vapor Deposition (MVD) is a new coating from Thin Film Partners that uses a hybrid coating process of alternating layers of ALD (Atomic Layer Deposition)  and CVD (Chemical Vapor Deposition) films combined with a hydrophobic final top coat.

The MVD method uses multiple alternate layers of these ultra-thin coatings with differing properties to build a completely protective coating.

Why use silicone (SR) conformal coatings to protect electronic circuit board assemblies?

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Silicone (inorganic) conformal coatings can be very different in nature to the organic chemistry coatings like the acrylics and polyurethane materials.

For example, they tend to have a much wider temperature range of operation compared to the other conformal coatings.

Why use plasma cleaning for cleaning circuit boards?

For a conformal coating to be effective in protecting a circuit board it should be applied evenly over the circuit board assembly and it should have good adhesion.

Otherwise, the circuit may suffer an early failure in the field.  

For good coverage and good adhesion the surface properties of the circuit board should be compatible with the conformal coating.

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