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Introduction to Helium Gas and its Applications by Gas Purification Equipment Manufacturers

Introduction to Helium Gas and its Applications by Gas Purification Equipment Manufacturers

The element's name comes from the Greek word for "sun". In 1868, Pierre Janssen of France used a spectroscope to observe the sun's surface and discovered a new yellow spectral line, which he believed belonged to an unknown element on the sun, hence the name helium. Helium is normally a colorless, odorless gas that cannot be solidified under standard atmospheric pressure. Helium is a very inert element. Its main applications are as a protective gas, a working fluid in gas-cooled nuclear reactors, and a cryogenic refrigerant.

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Common helium leak detection methods for helium mass spectrometer leak detectors include the helium hood method and the injection method

Common helium leak detection methods for helium mass spectrometer leak detectors include the helium hood method and the injection method

The applications of gases are becoming increasingly widespread, seen in both industry and our daily lives. High-purity helium gas should be used with a pressure reducer such as YQY-12 or 152IN-125. Before use, check for leaks in the gas pipeline with soapy water to ensure there are no leaks. Ensure that the helium does not leak and that the workplace is well-ventilated.

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2025

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Application Notes for High-Purity Helium: A Gas Purification Equipment Manufacturer Tells You!

Application Notes for High-Purity Helium: A Gas Purification Equipment Manufacturer Tells You!

The applications of gases are becoming increasingly widespread, appearing in both industrial settings and our daily lives. High-purity helium gas should be used with a pressure reducer such as the YQY-12 or 152IN-125 before use. Before use, check for leaks in the gas pipeline with soapy water to ensure that the gas pipeline is leak-free. Ensure that the helium does not leak and that the workplace is well-ventilated.

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2025

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Issues to Note When Using a Helium Leak Detector with the Suction Gun Method

Issues to Note When Using a Helium Leak Detector with the Suction Gun Method

Helium leak detection using a suction gun (positive pressure method). When using pure helium, a helium recovery device can be used for reuse to reduce costs. Alternatively, a helium gas mixture with a concentration of no less than 5-10% can be used and directly discharged into the atmosphere after use. Pay attention to the concentration of helium in the surrounding environment and the airflow, as this will affect the detection accuracy of the suction gun method.

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2025

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Why can helium be used as a leak detection gas?

Why can helium be used as a leak detection gas?

First, because helium's outermost electron shell contains only two electrons, and helium only has one electron shell, this means it has achieved a stable structure. Therefore, helium's chemical properties are relatively stable, making it resistant to reactions and explosions. In some valuable equipment such as airplanes and spaceships, helium is preferred as a leak detection gas. However, helium is scarce in nature and relatively expensive, so to save costs, some companies choose a hydrogen-nitrogen mixture as a leak detection gas, or use nitrogen directly.

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The leak detection role of helium in semiconductors

The leak detection role of helium in semiconductors

To prevent the performance degradation of semiconductor devices, integrated circuits, and other components due to surface contamination from moisture and other impurities, sealing with a shell is necessary. However, small holes that are difficult to detect with the naked eye often occur at the sealing points of the shell or at the lead connection points due to various reasons. Therefore, after the component is packaged, certain methods are required to detect the presence or absence of these small holes. Helium leak detection uses helium gas to check for small holes in the shell of the electronic component package. Because helium atoms are very small and easily pass through small holes into the shell, this detection method can detect very small holes (i.e., it can detect holes with a leak rate of approximately 10−11～10−12cm3/sec), with a sensitivity comparable to that of radioactive leak detection, but simpler than radioactive leak detection. Helium leak detection test method: First, place the packaged components in a container filled with helium gas and pressurize it, allowing the helium gas to enter the shell through the small holes; then take it out and use compressed air to blow away the residual helium gas on the shell surface; then use a mass spectrometer to detect the helium gas leaking from the shell surface.

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