Parylene Coating Blog by Diamond-MT

Is Parylene Coating Bio-compatible?

Posted by Sean Horn on Fri, Apr 03, 2015 @ 09:27 AM

Parylene is the most bio-compatible conformal coating currently available. Its chemical properties make it a natural for use in medical and biological applications. In addition, some of its general benefits also make it particularly valuable in healthcare applications. Finally, parylene also enjoys a stringent USP Class VI bio-compatibility certification.

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Tags: parylene, medical device coating

How Easy is Parylene to Rework?

Posted by Sean Horn on Fri, Mar 27, 2015 @ 08:32 AM

When it comes to reworking, parylene's strengths are also its biggest drawbacks. In addition to its ability to comprehensively coat substrates, it is also, by design, very challenging to remove. However, "very challenging" and impossible are two different things. Furthermore, good planning strategy before coating can also help to reduce the need for parylene rework.

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Tags: parylene, parylene rework

Parylene Conformal Coating for Medical Use

Posted by Sean Horn on Fri, Mar 20, 2015 @ 09:29 AM

Parylene conformal coatings have protected medical device components with an extended range of applications for over 40 years. They offer both patients and medical personnel the most reliable level of uniform, biocompatible device-security for cardio- logical and surgical procedures.  Their value and application proliferate, as technology develops.  

Organic Polymers used as Coatings

The overall generic name parylene designates a unique set of organic polymeric coating materials with innumerable applications.  All commercially applied parylene configurations are polycrystalline and linear in nature. 

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Tags: parylene, medical device coating

5 Common Misconceptions of Parylene

Posted by Sean Horn on Wed, Mar 11, 2015 @ 09:11 AM

In the course of our business applying parylene to a range of different products, our clients ask many questions. They also have a few consistent misconceptions. Here are the five biggest ones -- and the facts to clear things up.

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Tags: parylene, parylene C, parylene adhesion, parylene n

Drawbacks of Parylene Coating

Posted by Sean Horn on Thu, Mar 05, 2015 @ 02:09 PM

Parylene has a well-deserved reputation as one of the leading choices for conformal coatings. For many applications, it is the best choice. However, there are some real parylene disadvantages, as well. For many applications, other conformal coatings such as acrylic, epoxy, silicone or urethane offer better performance, lower cost or both.

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Tags: parylene, parylene disadvantages

Protecting MEMS with Parylene Coatings: No Small Feat

Posted by Sean Horn on Fri, Feb 27, 2015 @ 01:08 PM

As engineers continue to seek out the most powerful technologies packed into the smallest footprints possible, the use of microelectromechanical systems (MEMS) are on the rise. At the forefront of progress in miniaturization, MEMS enable small form factors without sacrificing precision and reliability. In many cases, MEMS technologies even offer an increase in performance over their larger, traditional counterparts. MEMS technologies can also be produced at low cost, owing to the use of semiconductor fabrication methods.

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Tags: parylene

Parylene C vs Parylene N

Posted by Sean Horn on Tue, Feb 17, 2015 @ 11:07 AM

Parylene and It's Uses

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Tags: parylene, parylene C, parylene n

Parylene for Defense Applications

Posted by Sean Horn on Wed, Feb 04, 2015 @ 09:54 AM

What is Parylene?

Parylene is a conformal protective polymer used for coating, first postulated by Michael Szwarc in 1947. His early experiments involved the decomposition of the solvent p-xylene. His worked proved that when the vapors of the p-xylene reacted with iodine, para-xylyene di-iodide was the only resulting product. The reaction produced only a low yield and the process was later made more efficient by William F. Gorham.

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Tags: parylene, defense

Sterlization of Parylene

Posted by Sean Horn on Tue, Jan 06, 2015 @ 08:19 AM

Regardless of the variant, Parylene in general garners a great deal of praise for the many advantages it offers as a protective conformal coating for applications as varied as medical, aerospace, defense, LEDs, and automotive. Chief among the coating’s benefits, however, is that it can withstand common sterilization techniques, such as electron beam (e-beam), gamma, ethylene oxide (EtO), and autoclave.

Like many chemicals, para-xylylene actually comes in several common variants:

  • N. The most basic type of the compound is highly elastic and, as such, is very good at penetrating small areas on components.
  • C. The C variant of the chemical replaces one aromatic hydrogen component with a chlorine atom. It is less elastic and is extremely popular in medical applications, in part due to its high degree of moisture resistance.
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Parylene for Industrial MEMS

Posted by Sean Horn on Thu, Oct 02, 2014 @ 01:42 PM

For contemporary industrial uses, sensors collect and respond to analog information, transforming it to a digital format.  Sensor design for many uses has increasingly relied on microelectromechanical systems (MEMS) technology.  MEMS are semiconductor-made micro-mechanisms, which typically work by deflecting optical signals from input-to-output fibers by deploying movable micro-mirrors.  They demonstrate virtually unlimited potential for an exceptional range of rapidly evolving products for information technology (IT), telecommunications, consumer electronics and automotive engines, among many other purposes.  

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Tags: parylene