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 our unique materials technologies. We have proceeded to develop various advanced innovative transfer equipment and transfer parts to solve the key manufacturing challenges of Micro LED display manufacturing.
Shin-Etsu Chemical
The new process technologies we are 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 Φ80μm 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.
Shin-Etsu has also developed a film-type black matrix encapsulation for miniLEDs to improve the displays contrast while protecting the component parts of the diode. Shin-Etsu is on a bit of roll right now, with strong financial growth, some great product offerings, and an amalgam of technologies that come together pretty nicely to deliver tangible results. One uncertainty is the impact of the US sanctions on Chinese manufacturing that the Japanese government has aligned itself with. That is a pretty big customer base for the company.
