Infineon opens scalable chip backend plant in Thailand - Automotive World

Infineon's scalable backend plant in Thailand is not a capacity play—it is a strategic lock on the industry's most underpriced bottleneck: packaging. Technically, automotive-grade IGBT and SiC module yield is dictated by back-end processes—thinning, wire bonding, molding, burn-in. These have long been outsourced to OSATs, leaving critical process parameters in a black box. In-sourcing pulls that control back into Infineon's closed loop, tightening lot-to-lot consistency and full-chain traceability. Upstream, equipment vendors (ASMPT, Besi) and materials suppliers will see a structural shift in European order flow. On supply-chain risk, Thailand's ASEAN position sidesteps direct US-China tech friction while diluting the geographic concentration of packaging capacity in Taiwan, China. The trade-off: a thinner bench of skilled assembly engineers likely stretches the yield-ramp window by 6–9 months, adding 8–12% hidden cost per device. Competitively, ST and onsemi will almost certainly mirror this move within 12 months. OSATs face a de-outsourcing squeeze from European automotive customers and will be forced to pivot toward 2.5D/3D advanced packaging to retain stickiness. The 18–24-month tail: the scalable design is effectively a SiC option. Once 800V platform penetration crosses 30%, the line can retool for larger-die silicon-carbide modules. Backend capacity is migrating from cost center to strategic asset.