Hydrogen bromide, with the chemical formula HBr, is an inorganic compound. It can be miscible with water, as well as ethanol and acetic acid. Under standard conditions, hydrogen bromide is a colorless gas. Hydrogen bromide is mainly used to manufacture various bromine compounds, and can also be used in industries such as pharmaceuticals, dyes, and spices. It has a high refractive index and can be used as a substitute for ammonia in the manufacturing of optical fiber products. It can also be used as an alkylating agent and alkyl halide in organic synthesis. In addition, hydrogen bromide plays an important role in the treatment of products and materials containing radioactive substances. It can serve as a reducing agent to reduce high valence radioactive metal elements to lower valence states, reducing their radioactivity. Meanwhile, hydrogen bromide also has certain applications in the fields of photochemistry and electrochemistry. Overall, hydrogen bromide has important roles and uses in multiple fields. It should be noted that hydrogen bromide is corrosive and toxic, and corresponding safety measures need to be taken when in contact. The application of electronic grade hydrogen bromide in the semiconductor industry is mainly reflected in the following aspects: Etching: Electronic grade hydrogen bromide is mainly used for the etching of phosphorus-doped polysilicon, monocrystalline silicon or two-dimensional semiconductors. It is one of the fluorocarbon gas alternatives and one of the core gases in advanced chip processes. Doping: electronic-grade hydrogen bromide can also be used in the doping process in semiconductor manufacturing to adjust the conductive type of semiconductor materials. Cleaning: Electronic grade hydrogen bromide can also be used to clean semiconductor surfaces to remove surface contaminants and oxides. Epitaxial growth: In some cases, electron grade hydrogen bromide can also be used for epitaxial growth of semiconductor materials. In general, electronic grade hydrogen bromide is widely used in the semiconductor industry, mainly for improving the performance of semiconductor materials and improving the reliability and stability of semiconductor devices.
Emergency response editing and broadcasting
Leakage emergency response
Quickly evacuate personnel from the contaminated area and isolate them until the gas has dissipated. It is recommended that emergency personnel wear self-contained positive pressure respirators and chemical protective clothing specifically recommended by the manufacturer (completely isolated). Cut off the air source. Spray ammonia or other dilute alkaline solution for neutralization, and pay attention to collecting and treating wastewater. Then exhaust (indoor) or strongly ventilate (outdoor). If possible, use an exhaust fan to send residual or leaked gas to the water washing tower or a fume hood connected to the tower. The leaking container cannot be reused and must undergo technical treatment to remove any remaining gas.
Protective measures
Respiratory protection: When the concentration in the air exceeds the standard, a gas mask must be worn. When rescuing or escaping in an emergency, it is recommended to wear a positive pressure self-contained breathing apparatus.
Eye protection: Wear chemical safety goggles.
Body protection: Wear corresponding protective clothing.
Hand protection: Wear chemical resistant gloves.
Other: Smoking, eating, and drinking are prohibited at the workplace. After work, take a shower and change clothes. Maintain good hygiene habits.
First aid measures
Skin contact: Immediately rinse with water for at least 15 minutes. If there is a burn, seek medical treatment.
Eye contact: Immediately lift the eyelids and rinse with flowing water or physiological saline for at least 15 minutes. Seek medical attention.
Inhalation: Quickly remove from the scene to a place with fresh air. Pay attention to keeping warm and keeping the respiratory tract unobstructed. Perform artificial respiration if necessary. Seek medical attention.
Leakage emergency response
Quickly evacuate personnel from the contaminated area and isolate them until the gas has dissipated. It is recommended that emergency personnel wear self-contained positive pressure respirators and chemical protective clothing specifically recommended by the manufacturer (completely isolated). Cut off the air source. Spray ammonia or other dilute alkaline solution for neutralization, and pay attention to collecting and treating wastewater. Then exhaust (indoor) or strongly ventilate (outdoor). If possible, use an exhaust fan to send residual or leaked gas to the water washing tower or a fume hood connected to the tower. The leaking container cannot be reused and must undergo technical treatment to remove any remaining gas.
Protective measures
Respiratory protection: When the concentration in the air exceeds the standard, a gas mask must be worn. When rescuing or escaping in an emergency, it is recommended to wear a positive pressure self-contained breathing apparatus.
Eye protection: Wear chemical safety goggles.
Body protection: Wear corresponding protective clothing.
Hand protection: Wear chemical resistant gloves.
Other: Smoking, eating, and drinking are prohibited at the workplace. After work, take a shower and change clothes. Maintain good hygiene habits.
First aid measures
Skin contact: Immediately rinse with water for at least 15 minutes. If there is a burn, seek medical treatment.
Eye contact: Immediately lift the eyelids and rinse with flowing water or physiological saline for at least 15 minutes. Seek medical attention.
Inhalation: Quickly remove from the scene to a place with fresh air. Pay attention to keeping warm and keeping the respiratory tract unobstructed. Perform artificial respiration if necessary. Seek medical attention.