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Innodisk, a leading producer of DRAM- and NAND flash-based products, this week announced a wide range of memory modules with conformal coatings that protect against from moisture, dust and chemical contaminants. This allows for normal operation in extreme environments, where unprotected modules would become unreliable.

The conformal coatings are a layer of chemicals applied to the surface of the DRAM module, to create a protective film for components. The layer thickness varies from 0.03mm up to 0.13 mm, depending on the demands of the application and the materials used (acrylics or silicones). These coatings protect against moisture, contaminants, dust and acid or alkaline materials, in line with IPC-A-610 standards for electronic components. They also protect against issues caused by electrical or thermal conduction, static electricity, and heat.

Innodisk standard conformal coating for DRAM modules is composed of acrylics supplied by HumiSeal, a partner who is among the world’s top three manufacturers of conformal coating materials. Innodisk uses the fast-drying type of acrylics to speed up the process and reduce the influence of dust, which is compliant with IPC, UL and MIL standards. This process also provides excellent moisture protection and electric insulation, can be easily repaired, does not shrink during cure, and contains fluorescents for easy inspection under UV light.

Innodisk’s conformal coatings adopt spray method and are completed entirely in-house, to avoid negative effects brought by dust in an outer environment. 100% inspection under UV light is employed to guarantee coating quality.

The tightly controlled QA process eliminates the chance of contamination or damage that typically occurs during third-party handling and transportation. Innodisk quality control also ensures that coatings are applied with an even thickness, and avoid excess chemical buildup.

Reliability is an absolute requirement for industrial computers and their components when used in mission-critical applications. Innodisk conformal coatings completely cover the surface of the DRAM modules, except for the gold conductor interface. The coatings shield the DRAM modules from harsh environmental factors, and they increase the life and reliability of the entire system.

Innodisk Conformal-Coated DRAM Modules are suitable for use in all applications where environmental challenges may be encountered, and reliability is critical. Applications include defense & aerospace, with conformal coatings that observe MIL-I-46058C standards; Outdoor Signage, where conformal-coated DRAM modules help systems withstand wind, rain and direct sunlight for real time data handling; embedded vehicle applications, enabling collection and recording of event data in real time, and while keeping the user connected to the Internet of Things (IoTs); and Factory Automation, in which conformal coatings can protect the system from water sprays, airborne dust and acidic materials.

Tags: Innodisk, DRAM, DDR3

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