Nitrogen Standard for Semiconductor Industry

In the semiconductor industry, nitrogen plays a crucial role, especially in high-purity gas supply. The following is a description of the standards, technical terms and their "soft" (I. e. non-technical, easy-to-understand) explanations of nitrogen in the semiconductor industry:

1. Nitrogen Standard

purity: The semiconductor industry requires a very high purity of nitrogen, usually more than 99.999 percent. This is because any impurity may affect the semiconductor process. High purity nitrogen ensures the quality of semiconductor products.

Humidity: Humidity is also an important consideration for nitrogen quality in the semiconductor industry. Excessive humidity may affect the semiconductor process, such as corrosion, capacitance changes and other issues. Therefore, the humidity of nitrogen should be controlled at a very low level, usually less than 50ppm (parts per million), and some high-end processes even require lower humidity, reaching below 5ppm.

2. professional terminology

n2: Chemical symbol for nitrogen, which means nitrogen gas.

ppm: one part per million, used to express the concentration of impurities in nitrogen.

ppb: One part per billion, used for very low concentrations of impurities in nitrogen.

Purity grade: such as N2.0, N3.0, N4.0, etc., used to indicate the purity of nitrogen. For example, grade N3.0 indicates a nitrogen purity of 99.9 percent.

3. soft interpretation

in the semiconductor manufacturing process, nitrogen acts as a "shielding gas", which prevents other substances that may cause damage to the material from contacting the semiconductor. In order to ensure the quality of semiconductors, manufacturers need to use very pure nitrogen, just like we need to use pure water when cooking. At the same time, they also need to ensure that there is very little moisture in the nitrogen to avoid adverse effects on the semiconductor. These stringent standards are designed to ensure the performance and reliability of the final product.

In summary, the semiconductor industry has very strict requirements on the purity and humidity of nitrogen to ensure the quality of semiconductor products. At the same time, the industry also uses a series of professional terms to describe and measure these standards.