Independent innovation to realize the localization of chip polishing materials

　　Integrated circuit chips have a key process - chemical mechanical polishing, and CMP polishing pads, the key material used in domestic polishing, are almost all imported. Now, Hubei Dinglong Holding Co., Ltd., headquartered in Wuhan Economic and Technological Development Zone, has been deeply involved in this field for 9 years. Through continuous high investment in research and development, it has grown into a leading enterprise in the domestic CMP polishing pad industry, and has fully entered the supply of all mainstream domestic fabs. chain.

　　Dinglong holding light display material production line
According to the latest financial report of Dinglong Holdings for the first half of 2021, its polishing pad products achieved profit again in the second quarter after the first quarterly profit. In the first half of this year, Dinglong Holding's polishing pad products achieved sales revenue of more than 100 million yuan and a net profit of more than 30 million yuan. Among them, the sales volume of polishing pad products increased by more than 50% compared with the first quarter, and the monthly sales volume in July exceeded 10,000 pieces for the first time.
Eating "hard bones", focusing on new material products with high-tech thresholds
Polishing is to ensure the chip has better performance and structural stability. CMP polishing pad is a key material in the wafer chip manufacturing process. Previously, the production technology was mainly mastered by several large companies abroad. With the vigorous development of the "optical core screen terminal network" industry in Wuhan in recent years, the demand for chip polishing is increasing day by day.
After completing the integration of the whole industry chain of "color powder + toner cartridge + chip" printing consumables, Dinglong Holdings established the optoelectronic semiconductor process material industry in 2012, and started the research and development and manufacture of CMP polishing pads and flexible OLED display substrate materials PI slurry.
Why did you choose such a "hard bone" to chew on? Zhu Shuangquan, chairman of Dinglong Co., Ltd., said: "Starting from the independent research and development of core high-tech products in the field of laser printing and copying consumables, and then entering the semiconductor and optoelectronic display industry, we have a relatively clear development idea, aiming at "the domestic urgent need but also relying on imports" related industry segments', focusing on new material products with high technology thresholds."
In this regard, Dinglong Holdings spared no expense and continued to maintain high-intensity R&D investment. From 2018 to 2020, Dinglong Holdings has invested more than 500 million yuan in research and development, accounting for about 12% of its total revenue in the past three years. In the first half of this year, Dinglong Holdings invested 116 million yuan in research and development, a year-on-year increase of more than 60%.
Build the only domestic and international advanced CMP polishing pad production and research base
After 9 years of hard research and development, breakthroughs have been made, and the leap from small batch experiments to large-scale production has been successfully completed. Dinglong Holdings has built the only domestic and international advanced polishing pad production and research base for integrated circuit chips CMP.
Dinghui Microelectronics, a subsidiary of Dinglong Holdings, is the only CMP polishing pad supplier in China that fully masters the core R&D and manufacturing technology of the entire polishing pad process. The polishing pad products have covered domestic mainstream wafer customers, filling the domestic production of this product field. blank.
According to industry evaluation, Dinglong's breakthrough innovation can effectively promote the localization process of materials required by my country's semiconductor integrated circuit industry and panel display industry.
After 9 years of sharpening a sword, Dinglong Holdings finally cleared the clouds and saw the sun. The CMP polishing pad business will see a large volume in 2020, with a sales revenue of 78.57 million yuan, a year-on-year increase of 537%, and the first profit in the first quarter of 2021. In the second quarter, the sales of Dinglong Holding's polishing pad products continued to grow rapidly. The sales volume increased by more than 50% compared with the first quarter. The monthly sales volume in July exceeded 10,000 pieces for the first time.
Zhu Shuangquan said: "Our CMP polishing pad business has entered the stage of independent innovation from the introduction and follow-up, and will enter the leading stage in the future."
We can produce these key materials ourselves
As a listed company in Hubei, Dinglong Holdings has always regarded the realization of localization as its innovative mission. While becoming a leader in the polishing pad industry, the PI slurry for flexible display substrates developed and manufactured by Dinglong Holdings is also the first in China.
The bendable display is called a flexible screen, and its scientific name is flexible OLED display. It is now mostly used in high-end smartphones and will be used in wearable electronic devices in the future. The PI paste used in the manufacture of flexible screen substrates can only be produced by foreign companies for a long time.
Rouxian Technology, a subsidiary of Dinglong Holdings, is mainly engaged in the R&D and production of PI slurry, and is the first domestic company to achieve mass production of PI slurry. In 2020, Rouxian Technology's yellow high-temperature resistant PI product PY102 achieved positive results in client verification, and successfully obtained the first ton-level orders from customers at the end of 2020, achieving a zero breakthrough.
At present, the PI slurry production line of Dinglong Holdings with an annual output of 1,000 tons has been put into operation, with a continuous and stable supply capacity, and the ability to meet the increasing order demand of downstream customers.
The carrier, the key consumable for high-speed copiers, has also been localized by Dinglong Holdings. According to reports, the threshold of carrier technology is high and the research and development is difficult, and it has long relied on overseas imports. Dinglong Holdings has established the only carrier R&D team in China, and has successfully built a complete set of domestic only and internationally advanced carrier R&D and production lines. The equipment is domestic.