Electronic grade phosphoric acid is an electronic chemical with a purity range of 79% – 86%. Electronic chemicals are special chemicals that are compatible with electronic applications and help enhance the performance of electronic products. Electronic grade phosphoric acid is predominantly used in the microelectronics cleaning application. It is widely used in the electronics industry, especially during VLSI manufacturing and in microelectronics and large screen liquid crystal displays, among other applications. Electronic grade phosphoric acid is used for wet etching and wet cleaning of ICs, chips, and other microelectronic products. Generally, electronic grade phosphoric acid is used for cleaning before substrate coating, etching and final stripping, semiconductor film etching, during lithography cleaning and insulating film etching, conductor film etching, organic material etching and in the fabrication of silicon wafers, among others. Attributing to its excellent performance, electronic grade phosphoric acid has become an indispensable part of the electronics industry and its market is pegged to rise steadily over the forecast period. The usage of electronic grade phosphoric acid in electronic applications depends largely upon the metal impurities and particle requirements.
Generally, electronic grade phosphoric acid is produced by treating high purity phosphorus, high-purity phosphorus trichloride or phosphorus oxychloride, among others. In the high purity phosphorus process, high purity yellow or red phosphorus is burnt in the presence of pure air & dry air to form P2O5 gas. This formed gas P2O5 is sprayed with ultrapure water to prepare electronic grade phosphoric acid. Further, purification of phosphoric acid is done in order to match up with the required purity. In this process, the air and water used must be in pure forms. Industrially, this method is preferred as it offers several advantages such as low-cost production, simple operation and high purity of electronic grade phosphoric acid. Also, in this process, phosphorus oxidation resolves the problem of viscosity of phosphoric acid and provides ease in the filtration and purification of electronic grade phosphoric acid.
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The use of electronic grade phosphoric acid offers several advantages such as enhanced IC product yield, improved electrical performance, higher reliability and better liquid crystal display (LCD) quality, among others. Attributing to such favorable properties, the demand for electronic grade phosphoric acid grows hand in hand with the growth of the electronics industry. With the development of microelectronic technology, the size of electronic components has been continuously shrinking, coupled with increasing chip area with complex integration. Thus, the demand for effective electronic chemicals is increasing, which in turn boosts the demand for electronic grade phosphoric acid.
Electronic Grade Phosphoric Acid: Segmentation
Based on application, the global electronic grade phosphoric acid can be segmented into,
Currently, only a few countries in the world such as the United States, Japan, and Korea are capable of producing electronic grade phosphoric acid. Over the recent past, electronic and solar panel industries in China have been witnessing significant growth and development, owing to which several key manufacturers of IC foundries, semiconductors, LEDs and TFT-LCDs have invested in China. This, in turn, has resulted in an increase in the demand for electronic grade phosphoric acid. Moreover, the domestic production capacity of ultra-clean, high-purity phosphoric acid is significant and accounts for a majority share of global market. Along with this, the availability of raw material in China will in turn help dominate the global electronic grade phosphoric acid market over the forecast period. Although China ranks first in the world in terms of production of yellow phosphorus and phosphoric acid, fine phosphorus chemical products in the country account for nearly 4% of the total. Thus, electronic grade phosphoric acid has become a high value-added product In China. Further, South Korea, Japan and Taiwan are also major markets for electronic grade phosphoric acid, owing to the rising demand from electronic and semiconductor applications. It is expected that the electronic grade phosphoric acid market in these countries will register steady growth over the forecast period.
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Electronic Grade Phosphoric Acid: Market Participants
Some of the key players identified across the value chain of the electronic grade phosphoric acid market include,