Samsung Electronics introduced the photoresist of Dongjin Smicon Semiconductor into its mass production line for the first time. This is also Samsung's first attempt at local mass production of photoresist. However, considering the relationship between Samsung and overseas photoresist suppliers, the specific output is not yet clear, and whether Samsung will introduce additional types of photoresist has not received a response.
Samsung Electronics has introduced extreme ultraviolet photoresist (PR) developed by a South Korean company for high-tech processes into its mass production line, the report said. In July 2019, Japan announced restrictions on the export of three important semiconductor and OLED panel raw materials, including fluorinated polyimide, photoresist, and high-purity hydrogen fluoride, to South Korea. After three years of hard work, South Korea has achieved photolithography. Glue is produced locally.
Samsung Electronics was found to have used Dongjin Semichem's photoresist on one of their semiconductor process (layer) lines, which passed Samsung Electronics' reliability test last year, less than a year later. Used in mass production lines. A process line is only a very small part of the entire process of Samsung Electronics, but because it is a product that was completely dependent on imports before, it has special significance. Previously, South Korea relied 100% on photoresist imports from Japan and other countries.
Since Samsung used this product for actual semiconductor production, Dongjin Smicon became the first company to localize photoresist and reach mass production level. Yongchang Chemical and SK Material Performance is also developing photoresists, but they have not yet reached the level of reliability verification.
Photoresist refers to the etch-resistant film material whose solubility changes after being illuminated or irradiated by ultraviolet light, deep ultraviolet light, electron beam, ion beam, X-ray, etc. It is a key material in the photolithography process and is mainly used in product Micro-patterning of bulk circuits and discrete devices.
From the perspective of the overall industry, the global photoresist market is highly concentrated, and Japan and the United States control most of the market share. Japan's JSR, Tokyo Ohka, Shin-Etsu Chemical, and Fujifilm have occupied more than 70% of the global market share, and their monopoly positions are solid.
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