What is plasma cleaning?

Plasma cleaning is a process of using plasma energy to clean and modify the surface of a substrate like a circuit board assembly.

It is a highly effective surface cleaning and treatment process before application of conformal coatings and is gaining more popularity due its highly effective performance.

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How to clean “no clean” flux residues and get it right

Cleaning the residues left behind by a no clean flux process is one of the most difficult tasks when considering cleaning.

After all, the residues left on the circuit board are not formulated to be cleaned away easily.

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The ABCs of Atomic Layer Deposition (ALD)

What is ALD?

Atomic Layer Deposition (ALD) belongs to the family of Chemical Vapour Deposition methods (CVD).

It is a deposition process at a nano-scale level within an enclosed vacuum chamber.

The deposition process forms ultra-thin films (atomic layers) with extremely reliable film thickness control.

This provides for highly conformal and dense films at extremely thin layers (1-100nm).

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Introducing a new coating that could offer the ultimate protection for LEDs without compromise to performance or process cost!

The need to protect LEDs from the long –term exposure of a harsh environment is becoming more and more required. This is doubly so for LEDs used outdoors.

The alternative coatings used to protect LEDs are many. They include Parylene, conformal coatings, ultra-thin fluoropolymer materials and encapsulates.

However, none of the material processes offer the perfect protection without adding significant cost to the production process, and ultimately the circuit board and product.

Further, to reduce costs in production some of the coating materials used compromised performance. So, there is a typical balance of costs versus protection.

Now, this may all change with the introduction of a very new coating process that takes many of the performance benefits of the best coatings but does not suffer the associated problems of increased production costs.

This process is a hybrid ALD (Atomic Layer Deposition)/CVD (Chemical Vapor Deposition) technique.

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What are conformal coating masking boots and how can they save you money?

The use of masking materials such as tapes, dots and liquid latex can be a highly effective process in protecting components from ingress of conformal coating.

However, the masking process can be labour intensive, difficult and time consuming.

Using reusable, custom masking boots offers a labour saving alternative in both the masking and de-masking stages of the coating process.

This can save you lots of time and money.

masking boots

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What is Plasma coating?

Plasma treatment of the surface of a circuit board before conformal coating

Plasma coating is the application of a nano-coating material onto a surface via a plasma.

Using a jet nozzle the material is supplied to the plasma. Next, the plasma excites the material and this increases the coatings reactivity.

This extra reactivity allows the material to optimally cover the surface of the substrate and bond much tighter.

The plasma coating process can be adjusted individually to the substrate. It can be used to coat different materials like metals, glass, ceramics and plastics.

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The ABCs of plasma cleaning for conformal coating

Plasma cleaning is a process that is gaining more popularity in thin film applications due its highly effective performance on cleaning and modifying surfaces.

It is also a highly effective surface cleaning and treatment process before application of conformal coatings.

Plasma circuit treatment of circuit board narrow

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The ABCs of Parylene

What is Parylene?

Parylene is an organic polymer, generically known as Poly (p-xylylene).

It is not a liquid like typical acrylic and urethane conformal coatings. It is not therefore processed like standard liquid conformal coatings.

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