Tech Giants Accelerate In-House Semiconductor Design, Threatening Fabless Chipmakers

A significant shift is underway in the multi-trillion-dollar semiconductor industry, as tech giants increasingly design their own semiconductors in-house. This move threatens to disrupt the business models of fabless chip designers, who outsource the manufacturing of chips to third-party foundries. Companies like Apple, Alphabet, Microsoft, and Meta Platforms are among the largest consumers of semiconductors, using them to power a variety of devices such as phones, PCs, and servers. These tech giants have traditionally purchased chips from companies like Intel, Nvidia, Broadcom, Qualcomm, and Advanced Micro Devices. 

However, in a bid to lower costs and improve product quality, these tech companies are now designing more of their own chips in-house. This shift has already begun, with Apple designing its own chips for its products and Tesla creating its own CPU for its cars and an AI chip for its Dojo Supercomputer. This trend is expected to continue and accelerate, posing a risk to fabless chip designers who may lose their biggest customers. The value proposition of fabless semis is diminishing as big tech companies grow in scale and capability. These tech giants have the resources and talent to design chips in-house, and they can also design the software needed to integrate their own chips with existing hardware and operating systems. They also do not rely on the semiconductor companies to get their products to market. However, the shift to in-house chip design is not without challenges, as evidenced by Apple's recent deal with Qualcomm to supply the iPhone with 5G modems through 2026. The decision to design chips in-house requires considerations of scale, capability, specificity, efficiency/power consumption, and cost. 

 Despite these challenges, the ongoing shift in the semiconductor industry could pose a significant risk to fabless semis. If they lose a large portion of their revenue as their customers start designing their own chips, it could be too late for them to shift strategies to building fabs. This shift further highlights the strategic importance of foundry businesses. Regardless of who designs the chips, someone has to fabricate them. However, building fabs is extremely expensive, and currently, only Taiwan Semiconductor Manufacturing and Intel are investing in fabs. As this multi-trillion-dollar shift in the chip industry continues, it remains to be seen how fabless semis will respond and adapt to these changing market dynamics.