How was the Molecular vapor deposition (MVD) technology for protecting electronic circuit boards developed?

Nexus has been examining Molecular Vapor Deposition (MVD), a new novel coating technique that may be able to offer superior protection to electronic circuit boards compared to the standard coating technologies like conformal coatings and Parylene.

The MVD process is a hybrid ALD (Atomic Layer Deposition) / CVD (Chemical Vapor Deposition) technique that uses multiple layers of ultra-thin coatings with differing properties to build a completely protective coating.

The results are proving to be highly effective and could change the industry in time.


But where did the MVD technology come from originally?

NEXUS1

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:

  • MEMS (Microelectromechanical systems)
  • Semiconductors
  • Industrial Inkjet Heads
  • Display Technology
  • Advanced Packaging
  • Data Storage Industry
  • Biomedical
  • Genome Sequencing
  • µfluidics

How is the MVD coating process used in the different industries?

The MVD process provides low temperature vapor deposition of coatings with many different properties in many sectors.

Consider the examples of MVD coating use below:

Surface Energy Control

  • Anti-stiction
  • Hydrophobic
  • Hydrophilic
  • Oleophobic
  • Oleophilic
  • Lubrication
  • Bio-functional layer

Device Protection / Package Sealing

  • Moisture barrier
  • Corrosion barrier
  • Chemical barrier
  • Gas/Oxygen barrier

Optical Films

  • Anti-reflection coatings

 Dielectric Films

  • Electrical insulation
  • Conformal films on high A/R

Adhesion

  • Adhesion promotion
  • Improved thermal stability
  • Improved mechanical durability

The MVD process offers great flexibility of processing thin films and it has now been considered for electronics protection.


Need to find out more?

Click Molecular Vapor Deposition (MVD) for protecting electronics for further information or contact us directly and we can help you.

If you are new to Nexus and our work on conformal coatings then a good place to go is our Start Here page or our free conformal coating eBook.

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What are Atomic Layer Deposition Coatings?

test-tubes low resAtomic Layer Deposition (ALD) belongs to the family of chemical vapor deposition methods (CVD).

It is a deposition process of a coating at a nano-scale level within a vacuum chamber.

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

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

ALD is used in many different areas including:

  • Micro-electronics
  • Semiconductors
  • Photovoltaics
  • Biotechnology
  • biomedical
  • LEDs
  • Optics
  • Fuel cell systems

Find out more here by clicking what is atomic layer deposition?

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