Chipmaker MediaTek has announced a 5 billion dollar investment to expand its AI data centre chip business. The move comes as smartphone demand keeps softening. MediaTek is best known for mobile processors. It is now betting that booming AI infrastructure demand will drive its next phase of growth. The company wants to diversify beyond phones into the data centres that power AI. Data centre chips are a high-value segment led by rivals like Nvidia. MediaTek plans to design processors for AI servers and cloud infrastructure. The announcement follows a wave of huge AI hardware investments this year. Analysts say the AI chip market will stay one of the fastest-growing parts of semiconductors. MediaTek’s shift shows even mobile-first firms are chasing AI infrastructure money. Global spending on AI data centres has surged as companies race to build bigger AI models. Analysts expect AI infrastructure investment to keep rising through the decade. MediaTek’s move shows even mobile-first chipmakers now chasing AI money.