Core Functions and Key Applications

Inert Protection (Anti-oxidation/Moisture Prevention): Chemically stable, nitrogen isolates oxygen and moisture, thereby preventing the oxidation or contamination of sensitive materials such as silicon wafers, metal interconnects, and photoresists. Typical scenarios include: wafer storage/transport, photoresist coating, CVD/ALD thin-film deposition, rapid thermal annealing (RTA), and wire bonding.

Process Control and Carrier Gas: It acts as a carrier gas to transport precursors, ensuring their uniform delivery into the reaction chamber. It also serves as a dilution or background gas to stabilize plasma, regulate reaction rates, and enhance thin-film uniformity as well as etching profile precision. Typical scenarios include: CVD/ALD, plasma etching, and ion implantation buffering.

Purging and Purification: It thoroughly purges residual substances from equipment chambers and pipelines to prevent cross-contamination. Additionally, it maintains positive pressure within cleanrooms and establishes protective air curtain barriers. Typical scenarios include: chamber switching in lithography/etching tools, gas line switching, and cleanroom positive pressure maintenance.

Auxiliary and Specialized Applications: Protecting chips during high-temperature processes; inhibiting solder oxidation and enhancing wettability during SMT reflow and wave soldering; minimizing surface oxidation during laser processing; and providing an inert storage environment for sensitive components (such as magnetic heads and LEDs) to reduce failure rates.