Shin-Etsu Chemical Co., Ltd. has developed new process technologies that can be applied for the manufacturing of Micro LED displays. The size of a Micro LED chip is not visible to the naked eye, with the length of one side being less than 50 µm (micrometers). For example, in order to manufacture one 4K display that has 4 times the resolution of a conventional high-definition screen, it is necessary to precisely array about 24.90 million chips.

In order to implement improvements in the complexity and yield ratio in the processes of Micro LED chip manufacturing and the transfer process of each chip, Shin-Etsu Chemical has been working together with Shin-Etsu Group companies to take advantage of unique materials technologies. The company have proceeded to develop various advanced innovative transfer equipment and transfer parts to solve the key manufacturing challenges of Micro LED display manufacturing. The new process technologies the company is announcing were jointly developed with Dexerials Corporation (Head Office: Shimotsuke City, Tochigi Prefecture, Japan; President: Yoshihisa Shinya) and introduces innovative technology that will transfer singulated anisotropic conductive film (ACF) of F80µm or less onto the targeted location by laser equipment.

Employing this technology, it becomes possible to transfer the singulated ACF only to the designated plate and mount the Micro LED chip on it and makes the repair process in Micro LED display manufacturing easy to carry out, a matter which had been a large issue up until now. In addition, in order to meet the requests of customers for such matters as achieving further improvements in productivity and in the handling of a wide variety of chips, working in cooperation with two Shin-Etsu Chemical Group companies, Shin-Etsu Engineering Co, Ltd. (Head Office: Tokyo; President: Kenji Sugii) and Shin-Etsu Polymer Co., Ltd. (Head Office Tokyo; President: Yoshiaki Ono), Shin-Etsu Chemical developed the following transfer equipment and transfer parts and expanded the company's products line-up. Combining the advantages of these Shin-Etsu transfer equipment and transfer parts, the company will be able to offer the most optimized manufacturing processes to the company's customers: SQDP-B Series, cure type donor plate; EZ-PETAMP Series, multi-stage dot-type large stamp (6 inch); Invisi LUM-X4, a 4-in-1 system that makes it possible to perform 4 processes using 1 laser; BM encapsulant film for Mini LED displays.