# Applied Materials buys 9% of Besi to deepen their hybrid bonding partnership

Canonical page: https://technooptimist.io/stories/applied-materials-buys-9-of-besi-to-deepen-their-hybrid-bonding-5ddfdfe9
Date: 14 Apr 2025
About: [Besi (BE Semiconductor Industries)](https://technooptimist.io/companies/besi.md) · [Besi hybrid bonding systems](https://technooptimist.io/computing/hybrid-bonding.md)
Original source: https://www.sec.gov/Archives/edgar/data/6951/000119312525080269/d939298dex991.htm

Applied Materials bought 9% of Besi's shares on the market, building on a collaboration since 2020 to make the first fully integrated equipment for die-based hybrid bonding. Applied said copper-to-copper bonds raise connection density and shorten wiring between chiplets, improving performance, power and cost.

## Key facts

- 9% stake bought through market transactions; no regulatory approval needed.
- Applied said it would not seek a board seat or buy more shares.
- The two firms extended their agreement to co-develop an integrated hybrid bonding system.

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