SK hynix HBM4 Yield Reportedly Exceeds 70%

According to South Korean media outlet Chosunbiz, citing semiconductor industry sources, SK hynix's HBM4 yield has recently surpassed 70%. However, SK hynix has not yet officially disclosed specific yield figures. Yield refers to the ratio of qualified products to total output; under the same calculation standard, an increase in yield from 60% to 70% means that with the same production input, the output of qualified products increases by approximately 16.7%. Improving HBM4 yield is directly related to competitiveness in supplying major AI semiconductor customers, including NVIDIA. As AI accelerator performance improves and demand grows for memory bandwidth and energy efficiency, the ability to ensure stable supply while meeting customer performance and quality requirements is regarded as a key competitive advantage.