The AST Singapore substrate plant adds a capability that sits between chip design and finished electronics. The workforce question is who can show that the new line produces the same result from lot to lot, and how much engineering time to protect for that work before output ramps up.
Advanced Substrate Technologies (AST), a joint venture between TOPPAN and Broadcom, opened its Jurong facility on 29 September 2026. The announcement carried by Broadcom says the plant is Singapore’s first capable of producing high-end flip chip ball grid array (FC-BGA) substrates and TOPPAN’s first such facility outside Japan. AST said it had hired more than 200 engineers and technicians, alongside operational staff, since breaking ground in March 2024. TOPPAN’s 30 September release listed December 2026 as the planned start of operations. The opening and the production target are separate milestones.
What a substrate plant has to prove
An FC-BGA substrate connects a chip to the board it will sit on. It routes electrical signals through layers of fine wiring. The AST site will focus on large, high-layer-count substrates for applications such as AI computing and networking. The more demanding the product, the more important it is to understand whether materials, tools, and measurements behave consistently together.
Consider a board that meets electrical checks but measures differently on flatness at two inspection stations. Before increasing throughput, a team needs to determine whether the difference comes from the board, the fixture, the measurement method, or the condition under which the test runs. That distinction changes who needs to be involved. More machine operators can help run additional lots. A metrology specialist and a process engineer can establish whether the measurements justify releasing those lots.
That is why a new line can need more technical capacity before it needs a full shift of production staff. For Singapore manufacturers and suppliers reading the investment announcement, the distinction matters more than the total number of hires. A supplier providing fixtures, materials, or inspection services needs to know which qualification decisions it can support at short notice.
How employers can plan the qualification team
Start by asking which test results the receiving team must reproduce independently before the first customer lots are approved. Name the people who can run the test, review the data and investigate a disagreement. These three responsibilities can sit with different people. A coverage plan should show who can do each job on the shift or day the issue arises.
That plan can also inform which skills to build locally and which to bring in for the ramp. A fixture design review may only need a supplier specialist at set points. Resolving conflicting measurements can be a recurring job during early lots, so the team needs an owner who can investigate while the relevant setup and sample are still available. Treating both tasks as on-call engineering can leave the line waiting for a decision.
As new projects reach production, track which qualification decisions the local team can make reliably. That gives a clearer view of workforce readiness than counting training completions or assuming the opening date means every product is ready to ship.
Building a substrate manufacturing or process qualification team? Contact Us to discuss hiring in metrology, quality and process engineering.
