Semiconductors & Electronics

Nine wafer fabs anchor Singapore's semiconductor sector, all run by multinational subsidiaries or joint ventures — GlobalFoundries, Micron, UMC, SSMC, STMicroelectronics and others. JTC's wafer fab parks host 14 global semiconductor firms. Each fab is a 300 mm plant and a capital project running into billions of dollars, so the front end has no long tail: 52 entities register under the wafer-fabrication activity code (SSIC 26112), but only nine operate fabs.

Depth sits behind the fabs, not inside them. The SME layer is the supply chain that keeps the plants running — parts cleaning and process-kit refurbishment, sub-assemblies and modules for equipment makers, and ultra-high-purity gas and chemical delivery. The contractor and hook-up cluster, several firms in Ang Mo Kio Industrial Park 2, competes on orbital-welding qualification and weld-coupon records, tracing back to the first wave of fabs.

Assembly and test (OSAT) is the second multinational layer: seven to eight verified operators — UTAC, STATS ChipPAC, ASE, Silicon Box — against 92 entities in the assembly-and-test code (SSIC 26113). Printed-circuit-board assembly and electronics manufacturing services, plus semiconductor test and failure analysis, complete the sector. The work runs from cleanrooms at STMicroelectronics in Ang Mo Kio to precision-welding shops nearby.