Firms are advising on semiconductor manufacturer Onto Innovation’s USD710 million 27% acquisition of X-ray technology maker Rigaku Holdings Corporation in a strategic Japanese partnership to advance next-gen processing solutions.
Nishimura & Asahi assisted Onto Innovation on its purchase of Rigaku shares from Atom Investment, an affiliate of the Carlyle Group. Tokyo-based partners Yuki Oi, Toshihito Yasaki, Yuki Sakurada and Tomonori Maezawa led the team.
Simpson Thacher & Bartlett also acted as legal adviser to Onto Innovation, while Greenhill, an affiliate of Mizuho Financial Group, served as financial adviser. Goldman Sachs advised and provided committed financing, subject to customary conditions.
Mori Hamada & Matsumoto counselled Rigaku Holdings Corporation, with partners Kenichi Sekiguchi and Junichi Tsuji, and associates Yuta Arimura and Keigo Hirashima leading the team.
Nagashima Ohno & Tsunematsu and Latham & Watkins represented the Carlyle Group, along with Morgan Stanley, who acted as the financial adviser.
In addition to entering into a definitive share-purchase agreement, Onto Innovation has the right to nominate one director to Rigaku’s board under the strategic collaboration.
The transaction, which will advance next-generation process control solutions for semiconductor manufacturing, is expected to close in the second half of 2026. It is subject to customary closing conditions, including receipt of customary regulatory approvals.
AloJapan.com