BiCMOS
Technology for high-performance optical and RF ICs
Demand for new data centers is rising fast, driven by digitalization and AI.
Optical solutions are key to connecting servers, switches, and storage units in data centers. They also support short-reach GPU-to-GPU links in AI clusters. As data rates increase, so does the need for higher-performance optical ICs.
LEO satellite constellations, 5G networks, and emerging microwave applications are also driving demand for high-performance RF devices. Applications such as automotive radar, 60 GHz LAN RF transceivers, point-to-point radio, security, and instrumentation need strong RF performance in demanding conditions, with higher integration, lower power consumption, and optimized cost.
To meet these needs, we are investing in BiCMOS technology. Today, ST BiCMOS is used in advanced optical modules, LEO satellite terminals, wireless base stations, automotive radar, and instrumentation solutions worldwide.
Enabling global connectivity with BiCMOS
ST’s BiCMOS technology plays an important role in Starlink’s phased-array antennas, helping deliver fast, reliable high-speed internet. This technology helps SpaceX provide connectivity to more than 8 million customers in over 150 countries.
BiCMOS: the best of two worlds
BiCMOS brings two process technologies together on a single chip.
Bipolar transistors provide the speed and gain needed for high-frequency analog functions, while CMOS is well suited to medium-complexity, low-power logic.
By integrating RF, analog, and digital functions on one chip, our BiCMOS technology helps reduce the number of external components and optimize power consumption.
Typical cellular base station or point-to-point radio receiver
Typical optical fiber and active optical cable module
Our BiCMOS technology delivers high performance with strong integration advantages.
Compared with bulk CMOS, the BiCMOS heterojunction bipolar transistor provides a higher cutoff frequency at the same technology node. To reach similar frequencies, bulk CMOS typically needs smaller process nodes, which can increase design complexity, reduce overall performance, and raise cost.
With its competitive cost profile, our BiCMOS technology supports a broad range of applications.
ST leads in BiCMOS process technology
With deep expertise in design, architecture, and process integration, we offer advanced SiGe BiCMOS technology for high-performance RF ICs.
Our B55 and B55X technologies are manufactured on 300 mm wafers in Europe, supporting high-volume production.
A complete offering for optimal design and manufacturing
Our BiCMOS design platform is backed by advanced CAD tools, a complete design flow, and highly accurate simulation models. Its effectiveness has been demonstrated across many successful customer IC designs.
We support a range of business models for BiCMOS, from pure foundry services to broader support for ASIC design, development, packaging, and testing. This flexibility helps us match the right level of service to each customer requirement.
Our experience across analog, RF, and digital IP on BiCMOS also helps simplify product design and support faster time to market.
The winning portfolio for
AI optical interconnects
Read more technical insights on silicon photonics and BiCMOS technologies for cloud optical interconnects.
