Positive photoresists have a wide range of applications, and o-quinone azide photoresists are their representative products.

Positive photoresist, also known as positive photoresist, refers to a photoresist in which the unexposed portion of the coating can be retained to form an image after exposure and development in the photolithography process. Positive photoresist has the characteristics of good chemical resistance, good adhesion, and high resolution. It is widely used in biomedicine, optoelectronics, microelectronics, semiconductors and other fields.

The main components of positive photoresist include dispersants, reactive diluents, preservatives and resins. Phenolic resin is widely used in the production process of positive photoresist. It has the characteristics of acid resistance, high temperature resistance, good wettability and high strength. It has broad application prospects in the fields of photoresist, synthetic plastics, adhesives, flame retardant materials and other fields. However, currently, due to factors such as high technical barriers and high production costs, the output of electronic-grade phenolic resin in my country is low, and demand is highly dependent on imports, which brings certain challenges to the development of the positive photoresist industry.

       O-Quinone Azide photoresist is a representative product of positive photoresist, which refers to a photoresist containing o-Quinone Azide compound (DNQ). O-quinone azide compounds will undergo a photodecomposition reaction after ultraviolet irradiation, and then undergo hydrolysis, modification and other processes to prepare a positive photoresist. my country’s o-quinone azide photoresist industry started in the 1960s. After years of development, the technical level of local enterprises has continued to improve, which provides favorable conditions for the development of the positive photoresist industry.

According to the “2023-2028 China Positive Photoresist Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center It shows that positive photoresist has a wide range of applications, including biomedicine, optoelectronics, microelectronics, and semiconductors. In the semiconductor field, positive photoresist can be used to produce high-precision circuit boards, circuit boards and other products. In recent years, thanks to the country’s great emphasis on the development of the semiconductor industry, my country’s positive photoresist market demand has continued to grow. However, at present, there is still a certain gap in the output and quality of positive photoresist in my country compared with developed overseas countries. Local companies urgently need to increase investment in research and development to accelerate the localization process of my country’s positive photoresist market.

Jingrui Electrical Materials, Rongda Photosensitive, Nanda Optoelectronics, Kehua Microelectronics, etc. are the main positive photoresist manufacturers in my country. Jingrui Electronic Materials is my country’s leading positive photoresist company. Its subsidiary Suzhou Ruihong focuses on the research and development of cyclized rubber negative photoresists, G-line UV positive photoresists, thick film photoresists and other products. , production and sales, the photoresist technology level ranks in the leading position in my country.

Industry analysts said that as a subdivided product of photoresist, positive photoresist has excellent performance and is widely used in many fields. In the future, as downstream demand is gradually released, the development speed of the industry will further accelerate. my country’s positive photoresist industry started late, and there is a certain gap in technology level and product quality compared with overseas developed countries. In the future, as local companies improve their independent research and development capabilities, the market share of domestically produced positive photoresists will further increase.