TSMC is quietly building an EMIB style rival to Intel’s chip packaging, and the stock market noticed

6:30 AM ET · July 31, 2026

According to a report from The Information, Taiwan Semiconductor Manufacturing Company is developing a new advanced packaging architecture, internally referred to as “EMIB-like,” in partnership with substrate maker Kinsus Interconnect Technology Corp. The approach uses a silicon bridge design similar in concept to Intel’s Embedded Multi-die Interconnect Bridge technology and is intended to support larger multi-die AI chips than TSMC’s current CoWoS-L process can economically handle. The motivation is capacity, not just competition: TSMC’s CoWoS-L packaging is sold out through 2026 and well into 2027, with lead times reportedly stretching to as long as 78 weeks in some cases, a bottleneck that risks pushing customers toward Intel’s own advanced packaging services instead. Intel’s next generation EMIB-T packaging has reportedly achieved a 98 percent yield rate and picked up orders from Nvidia, Google, and OpenAI, giving Intel a genuine opening in a market TSMC has dominated for years. Kinsus is expected to handle design, testing, and manufacturing of the advanced substrates housing the micro silicon bridges, and the project remains in early stages with no disclosed commercial launch timeline. Markets reacted quickly to the report: TSMC shares rose about 7.6 percent and Intel shares jumped roughly 13 percent, with AMD also gaining as investors weighed the prospect of more competition, and more capacity, in the advanced packaging bottleneck that has constrained AI chip supply for the past two years.