The triethyl borate (TEB) industry has good development prospects and my country’s electronic grade TEB production capacity needs to be improved.

Triethyl borate, also known as ethyl borate, triethoxyborane, or TEB for short, is an organic compound with the chemical formula C6H15BO3. It appears as a colorless and transparent liquid, is miscible with ethanol and ether, and is easily mixed with water. Decomposes into alcohol and boric acid. At present, the main production method of triethyl borate is to use absolute ethanol and boric anhydride as raw materials, and react at 80°C to prepare triethyl borate.

Triethyl borate has low toxicity and volatility and can be used as a solvent, catalyst, preservative, lubricant, plasticizer, co-solvent, wet electronic chemicals, etc. in coatings, inks, chemicals, and food. , pharmaceuticals, machinery, rubber, electronics and other fields, it is a type of organic compound widely used.

According to different uses, triethyl borate can be divided into two categories: industrial grade triethyl borate and electronic grade triethyl borate. From the perspective of market segments, electronic grade triethyl borate is currently the mainstream product in the market. Electronic grade triethyl borate is mainly used to form borophosphosilicate glass (BPSG) in the deposition process of wafer manufacturing. Boron phosphorus silicate glass is silicon dioxide doped with boron and phosphorus. It is an insulating medium. It is mainly used for the insulating layer between layers in front of multi-layer metal wiring, reflow dielectric layer, surface passivation protective layer, etc. It is a semiconductor chip. Important materials required for front-end manufacturing thin film deposition processes.

Electronic grade triethyl borate is a type of electronic chemicals with high production requirements. It generally requires a purity of not less than 99.95%, an impurity content of at least less than 7.5N, etc., and high technical barriers. From the perspective of the domestic electronic grade triethyl borate market, under the background of the deepening transfer trend of the global semiconductor industry to China, the domestic demand for electronic grade TEB continues to increase, and the market demand space is vast. Guizhou Weiton Crystal Phosphorus Electronics is a representative enterprise of domestic electronic grade triethyl borate. The purity of the company’s electronic grade TEB products can reach 99.999995%. Industry analysts said that the number of domestic companies with the mass production capacity of electronic grade triethyl borate is still limited. There are relatively few. In the future, local companies will need to accelerate the improvement of their technical level and promote the continuous improvement of domestic electronic-grade TEB production capacity.