Jolt Capital puts €20M into Tempress as it buys SPT Microtechnologies USA

Jolt Capital is investing €20 million in Dutch semiconductor equipment maker Tempress, while Tempress has agreed to acquire San Jose-based SPT Microtechnologies USA. The move is meant to build a stronger European platform in high-end chip manufacturing equipment through consolidation and broader product coverage.

Why it matters: - Jolt Capital is backing Tempress as part of a consolidation strategy in high-end semiconductor equipment. - The deal could expand Tempress’ reach in thermal processing tools for power, SiC, photonics and MEMS markets. - The acquisition adds product lines, customer relationships and geographic coverage across Europe, the U.S., Germany and Taiwan.

What happened: - Jolt Capital committed €20 million to Tempress. - Tempress signed an agreement to acquire SPT Microtechnologies USA, Inc., a San Jose, California-based subsidiary of SPP Technologies Co., Ltd. - The two moves were announced together on July 16, 2026. - Tempress is based in Vaassen, Netherlands.

The details: - Tempress makes thermal diffusion and deposition furnaces for “more-than-Moore” semiconductor segments. - The company’s systems use high-temperature diffusion and chemical vapor deposition processes for semiconductor doping and functional coatings. - Tempress says its legacy patent base supports uniform, high-quality material layers at industrial scale. - The company sells to global semiconductor fabs and major R&D centers. - SPT Microtechnologies USA specializes in vertical furnaces for complex thermal processing. - The acquisition includes SPT Microtechnologies USA’s subsidiaries in Germany and Taiwan. - Tempress intends to integrate SPT Microtechnologies USA while maintaining operational continuity. - The combined group expects synergies in technology development, manufacturing efficiency and global service support. - Jolt Capital is a private equity firm focused on growth investments in European deeptech companies. - Innovation Industries is also a shareholder in Tempress.

Between the lines: - The transaction pairs capital with M&A, signaling an effort to build scale faster in a sector where specialized equipment and customer relationships matter. - The combination of non-rival product portfolios suggests Tempress is trying to broaden its offering without directly cannibalizing existing lines. - The move fits Jolt Capital’s stated approach of backing European deeptech companies and using acquisitions to create larger platforms. - Tempress CEO Pieter de Groot said the financing and acquisition mark a dual step toward building a leading semiconductor equipment platform.

What's next: - Tempress will move to close and integrate the SPT Microtechnologies USA deal. - The company plans to use the added scale to expand its installed base and customer support worldwide. - Jolt Capital and Tempress are likely to pursue further growth through consolidation if the strategy performs as planned.

The bottom line: - Jolt Capital is funding Tempress while Tempress buys a complementary U.S. rival, aiming to create a stronger European semiconductor equipment platform with global reach. - Jolt Capital’s website is more information. - Tempress’ website is more information.