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The worldwide market for high-density interconnect (HDI) PCBs came to more than $10 billion in production value in 2018, with Taiwan accounting for about 40% of the total value, according to data compiled by Taiwan Printed Circuit Association (TPCA).
Compeq Manufacturing, Tripod Technology, Unimicron Technology and Zhen Ding Technology are among the major Taiwan-based HDI PCB manufacturers.
Sales generated from the smartphone sector accounted for as high as nearly 80% of Taiwan's overall HDI PCB industry output value, TPCA indicated. With smartphones being the single largest target application, Taiwan's HDI PCB sector remains an oligopoly where only a few large-scale firms are capable of winning orders from smartphone vendors, TPCA said.