J. I. Okamura
New Semiconductor Design Programs with Japan’s Open Source Ecosystem
[Society News] in IEEE Solid-State Circuits Magazine, vol. 18, no. 3, pp. 87-88, Summer 2026,
doi: 10.1109/MSSC.2026.3708432
Abstract: Open Source Utilized Silicon Initiatives (OpenSUSI), founded in April 2024 as a nonprofit organization, has been working closely with two Japanese legacy foundries to foster an open source silicon ecosystem in Japan. On 19 September 2025, TOKAI RIKA Co., Ltd., a 6-inch legacy foundry in Japan, announced the release of a non-disclosure-free process design kit (PDK) as an open source platform [1]. This new open source PDK, called TR-1um [2], was released via the OpenSUSI GitHub repository, and, since last October, we have been cleaning up and maintaining it alongside our collaborators.
Fig. First Tapeout application form on the OpenSUSI homepage.
