Exploring Innodisk’s Industrial DRAM

Innodisk customers are spoiled for choice when it comes to industrial DRAM offerings. Wide Temperature, Ultra Temperature, 30µ” gold finger, 45µ” gold finger, and side fill are just some of the excellent industrial features that Innodisk provides, but not everyone may be familiar with what they are, and what benefits they offer. In this article, we will discuss what those features are, what use cases best suit them, and how you can decide what to choose.

What is Wide Temperature DRAM?

Wide Temperature DRAM offered by Innodisk is designed with extreme environments in mind, and is essential for ensuring high performance in a wide variety of vertical markets. All Wide Temperature modules can operate in conditions as cold as −40° C, and as hot as 85°C. Wide Temperature modules incorporate a 30µ” gold finger, and are tested to withstand the cycles of contraction and expansion induced by changes in temperature. The modules are available in a variety of different module types including UDIMM, SODIMM, ECC UDIMM, ECC SODIMM, and RDIMM.

Who is Wide Temperature DRAM For?

Due to their wide temperature range, and comprehensive selection of module types, data rates and capacities, Wide Temperature DRAM modules have a broad use case and are suited to a variety of industrial implementations, especially outdoor AIoT applications.

What is Ultra Temperature DRAM?

Ultra Temperature DRAM takes the impressive temperature variation capabilities of Wide Temperature DRAM to the next level, and can operate from -40° to 125°C, an increase in heat of 40°C. This additional heat protection, as well as Ultra Temperature’s other industrial grade protective capabilities, which are achieved in part thanks to Ultra Temperature’s 45µ” gold finger are verified by third-party testers who perform rigorous testing, including:

  • Vibration test (MIL-STD-810G 514.7)
  • Thermal shock test (MIL-STD-810G 503.6)
  • Drop test (ISTA-1A)
  • Bending test (EIAJ-4072)
  • Gold finger insert and extract tests (100 cycles)

Who is Ultra Temperate DRAM For?

Due to Ultra Temperature’s unique ability to withstand temperatures up to 125°C, it is most suited to applications that are exposed to extreme heat, prolonged exposure to the sun, or in poorly ventilated areas. Systems inside trucks and other vehicles are particularly vulnerable to heat, not only because of the environments the vehicle may operate in, but due to the prolonged heat the components may be exposed to from the nearby engine.

What Are Gold Fingers?​

Gold fingers are gold-plated connectors that appear along the interfaces of PCBs. Coating the connectors of PCBs protects the connectors from various industrial issues, including temperature variation, shock, chemical corrosion, air pollution and humidity changes.

What’s the Difference Between 30µ” and 45µ” Gold Finger?​

Wide Temperature DRAM modules feature a 30µ” gold finger, which offers fantastic protection against the elements, and is suited for most industrial applications. Ultra Temperature DRAM uses a 45µ” gold finger, which allows even further protection due to the thicker layer of gold plating on the connecting interface of the modules.

What is Side Fill?

Innodisk’s Side Fill technology is a tried and tested solution of applying resin to three sides of a DRAM integrated circuit board during manufacturing. The Side Fill method of applying resin improves the strength of the module, and helps resist thermal and mechanical stress.

What is Anti-Sulfuration?

Anti-Sulfuration is a technology offered by Innodisk to combat sulphur gas corrosion, which is pervasive in many industries. Sulfuration can lead to lower connectivity and can shorten the lifespan of DRAM, and other components. To combat this, Innodisk’s Anti-Sulfuration products have a protective layer around vulnerable parts, which safeguards the silver alloys.

What is Conformal Coating?

Conformal coating is the process of applying a coating agent to components to protect them from the elements. Since Innodisk performs the entire conformal coating process internally, it is easy to adapt the coating to the demands of the customer. Innodisk can design the ideal coating thickness, coating technique, or coating substance for any application or use case.

How Can You Find the Right DRAM for Your Application?

With all these great industrial features, you may be wondering how you can pinpoint the perfect module for your use case. Instead of surfing through product pages and comparing specs, Innodisk offers SmartFilter™, a quick and easy way to find the product you need.

With the tool, you are able to select your application, such as healthcare or surveillance, and choose the technologies you need, like Wide Temperature, Side Fill or Anti-Sulfuration. After picking a suitable combination for your application, you will be recommended a series of products to consider, and you can compare until you find the best solution for your use case.

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