King Yuan Electronics, a Taiwanese chip-testing supplier to Nvidia, will invest up to $1.4 billion in a new US facility, reported Reuters.
That puts the back end of the chip supply chain, the test-and-assembly step that has stayed almost entirely in Asia, on a path to US soil. Buyers of tested chips get a new option for dual-sourcing and shorter lead times.
What KYEC does: King Yuan is a pure-play OSAT firm, short for outsourced semiconductor assembly and test. It handles the back-end work including wafer probing, final testing, burn-in and packaging. These are the steps that come after a fab like TSMC prints the chip.
The company operates plants in Taiwan and Singapore, and calls itself the world’s largest professional chip-testing house.
King Yuan disclosed little else. It did not name a customer, site or timeline. It framed the investment only as intended “to support operational growth and strengthen its position in the global supply chain,” according to the company statement cited by Reuters. Its stock rose about 1% on the news.
Why the shift: Taiwanese OSAT firms had been sitting out the US buildout. As recently as three months ago, back-end houses had announced no concrete US plans, citing high plant costs and thinner margins than fabs. Instead, they expanded Singapore and Malaysia.
King Yuan’s move comes after a US-Taiwan trade deal struck earlier this year worth $500 billion and including a $250 billion Taiwanese pledge to invest in the US. The Washington Examiner tied King Yuan's decision to the agreement. Tariff pressure to move chip capacity onshore has been building across the sector.
The pattern: Front-end fab reshoring is settled. TSMC has committed $165 billion to US fabs and packaging. On the back end, Amkor has committed $7 billion in Arizona, while SPIL is building testing and packaging capacity for Nvidia. Foxconn and Wistron are also assembling AI servers in Texas.
King Yuan becomes the third independent OSAT company to announce a US investment. The back end is starting to follow the front end. Even so, King Yuan’s $1.4 billion investment is less than 1% of TSMC's US commitment. The back-end segment remains much smaller, even as it begins to expand.
