Apple PCB Shift: Zhen Ding, Compeq Build Thai HDI Capacity

Apple is pushing more iPhone production to India—roughly 14% of global output in 2024, with a target of 25% by 2025—and its PCB suppliers are following. Taiwan’s Zhen Ding and Compeq are adding HDI and rigid-flex capacity in Thailand, while AT&S expands advanced substrate lines in Malaysia, to keep next-gen board supply close to Indian assembly and outside China tariff risk.

The geographic shift is paired with a technology step-up. Apple’s next-generation iPhones require substrate-like PCBs with 10+ layers, finer line/space and tighter impedance control to support AI-driven on-device processing. Zhen Ding, already a top Apple SLP supplier, is ramping a second Thailand plant focused on HDI any-layer and rigid-flex boards. Compeq has broken ground on a high-layer count HDI line targeting battery and display module boards. AT&S is adding IC substrate capacity in Kulim, Malaysia for advanced packaging of Apple silicon. These moves pull high-margin HDI volume out of China, making Thailand and Malaysia the lowest-risk supply nodes for boards above 8 layers.

PCB and PCBA buyers should treat Apple’s moves as an early signal. Where Apple goes, volume HDI and rigid-flex capacity follows within 12-18 months. Suppliers offering Thailand- or Malaysia-based fabrication plus local SMT assembly will win dual-sourcing contracts from OEMs hedging against China tariffs and India import duties. At the same time, advanced packaging substrates are tightening as chiplet-based AI processors ramp, and Apple’s M-series and A-series packages already consume significant substrate capacity. Non-Apple OEMs planning high-layer count boards for AI servers, automotive electronics or 5G infrastructure should secure capacity early. China’s HDI ecosystem remains large, but the highest-margin, highest-layer-count work is being duplicated elsewhere, changing negotiation power in 2025.

For buyers tracking Apple’s PCB shifts, LT CIRCUIT supplies HDI any-layer, rigid-flex, IC substrate and high layer count PCB manufacturing with Asia-based capacity and DFM support for OEMs building telecom, automotive and AI hardware. Engaging suppliers with flexible regional options now can protect against tariffs and lead-time spikes.