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The ABCs of plasma cleaning for improving surface adhesion and processing

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

What is Plasma?

Plasma is an energy-rich gas state that can be used to modify the surface of a product to improve its performance.

How does Plasma work?

Plasma technology is based on a simple physical principle.

What is Atomic Layer Deposition (ALD)?

Atomic Layer Deposition (ALD) belongs to the family of chemical vapor deposition methods (CVD). It is a nano-scale deposition process within a 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).

What is plasma cleaning?

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

What is Plasma?

Plasma is an energy-rich gas state that can be used to modify the surface of a product to improve its performance. This modification can be improving the adhesion of a surface or changing the surface characteristics.

Plasma technology is based on a simple physical principle.

Why cleaning "no clean" flux residues from a circuit board assembly can be difficult and how to get it right

Author: Dr Lee Hitchens

So why is no clean flux so difficult to clean?

Cleaning no clean flux residues is one of the most complex processes when considering cleaning.

No clean fluxes are by definition harder to clean than conventional rosin or modified resin based residues.  After all, the flux residues left on a printed circuit board assembly are supposed to be permanent. It was designed to be a no clean process.

So, what do you do when you want to clean the no clean residues?

A superior coating solution for LEDs using a novel new process

Author: Dr Lee Hitchens

Why protecting LEDs with a coating is a challenge

Protecting LEDs with a protective coating is big business.  The volume of manufactured LEDs globally is growing at an exponential rate and there is no end in sight.

However, the challenges to protect the LEDs themselves with the right coating are not insignificant especially in an outdoor environment.

How do conformal coating masking boots save money in your production process?

Masking materials such as tapes, dots and liquid latex can be highly effective in protecting components from ingress of conformal coating.

However, the masking process itself can be labor intensive, difficult and time consuming. It can add a lot to the total conformal coating costs.

Using reusable, custom masking boots offer an alternative solution.

These pre-formed shapes work by fitting simply over the components to be shielded. This process quickly replaces the masking tape and the process time is significantly reduced.

What is Plasma coating?

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

The material is injected into the plasma via a jet nozzle. The plasma excites the coating material and this increases the coatings reactivity.

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