Invisible killer of memory modules – Resistor sulfuration
Unlike the comparatively stable application environment of standard memory modules, the environment in which industrial computers operate is often very hot and highly polluted. In the face of environmental pollution, electronic components exposed to high temperature, humidity and pollution are often prone to sulfuration, weakening and damaging products.
Silver sulfide formation
In a highly polluted environment, excess concentration of airborne sulfur-containing particles (H2S) can easily react with silver (Ag) used in the electrode to form silver sulfide (Ag2S) which is non-conductive. As sulfuration increases, resistance value will also increase, eventually causing an open circuit.
Apacer awarded patent for anti-sulfuration memory
With the issue of sulfuration in industrial environment in mind, Apacer has developed the world’s first range of anti-sulfuration memory modules.
Apacer anti-sulfuration memory modules use special alloy materials as passive components, which have passed the ASTM B809-95 anti-sulfuration test, allowing them to operate steadily even in a harsh sulfur-containing environment to meet high industrial standards.
Anti-sulfuration technology comparison
The most common anti-sulfuration method is to cover an sulfur-tolerant layer to protect the electrode, which prevents silver from reacting with sulfur-containing gases and increases sulfur tolerance of the electrode. However, the anti-sulfuration performance of this method is rather unstable due to process failure, such as layer shift or layer failure.
Apacer awarded patent for anti-sulfuration memory adopts exclusive and improved alloy materials to replace normal electrode and ensure anti-sulfuration performance . Apacer’s anti-sulfuration technology not only effectively solves corrosion problems caused by environmental pollution but also increases overall system lifespan and allows stable system operation over long hours in a harsh environment, ensuring product reliability and durability.
Value-added technologies for extreme environments:
Multiple protections and improved reliability
Conformal coating on the printed circuit board not only protects against humidity, dust and contaminants, increasing the components' durability and corrosion resistance, but also provides a second layer of protection for products in extremely harsh environments.
30µ Gold Finger
The gold finger specifically designed for the anti-sulfuration memory modules is 30µ thick. Not only does the extra thickness offer wear resistance and durability for repetitive plugging/unplugging, it also improves anti-sulfuration, allowing for more stable signal transmission.
As high temperature accelerates sulfuration of resistors and in turn shortens product lifespan, Apacer combines anti-sulfuration with wide temperature support to ensure stable operation even in highly polluted sulfur-rich environments and extreme climatic conditions.