Masking a New Path to Protected Digital Devices

Posted on May 26th, 2015 by

Part of the challenge in working with many conformal protective layers, including Parylene and Parylene-base protective layers like those developed by HZO, are based on certain properties of the material after it has been applied to a PCBA.

We’ve written before about masking, and the artful steps that make this part of the protective layering process a requirement for some devices. But what is it about certain protective layering materials that make masking and de-masking on certain points of devices, like connectors or screens, a mandatory step?

Simply put, once deposited through the unique chemical vapor deposition polymerization process, HZO conformal protective layers are dielectric. This means the protective layering material is an insulator, and thus is a poor conductor of electrical current. In other words, points on a PCB, like connectors, will not function properly in some cases once a Parylene protective layers has been applied.

Waterproof Electrical Connectors

HZO acknowledges and understands the complication this presents for protecting certain device boards and components from things like water, humidity, or industrial liquids and gases. That’s why the company is committed to developing custom solution plans for each project. It’s also why HZO continues to invest and innovate in the development and implementation of semi-automated and fully automated masking and de-masking processes.

The history of conformal protective layers is littered with manufacturing pitfalls and barriers to market entry, but HZO has changed that. Since 2011 we’ve been working to make Parylene-based solutions a viable option for more industries and more companies seeking reliable protection.

We’ve developed CVD equipment that is capable of supporting high volume production and we’re continually improving process efficiencies in order to lower application costs that are driven in part by masking and de-masking.

HZO is proven as a top performing technology for protecting devices, and uniquely positioned to help protect devices that no other company can. Is it right for you? Contact us today to find out.

Discover how HZO can protect your product

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