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On April 25, 1961, a foundational milestone was recorded: U.S. Patent No. 2,981,877 was awarded to Robert Noyce, following his July 1959 filing. More than a legal record, this invention, the first practical monolithic integrated circuit built on the planar process, became the structural cornerstone of modern electronics. It transformed fragile assemblies of discrete transistors into scalable, manufacturable silicon systems. In doing so, it unlocked more than miniaturization: it enabled the industrialization of complexity.  

Sixty-five years later, the impact of that breakthrough is embedded in every connected device, every wireless signal, and every digital interaction. The integrated circuit enabled the transition from handcrafted electronics to global-scale production of reliable, high-performance systems. Telecom infrastructure, baseband processors, and embedded connectivity all trace their lineage to that milestone.  

Sequans’ 22-year semiconductor journey is a direct continuation of that legacy. Built on the premise that connectivity must be standardized, scalable, and efficient, Sequans has translated IC innovation into real-world deployment across eleven generations of silicon. This progression reflects continuous evolution, with each generation extending performance, integration, and power efficiency.  

From the early days of WiMAX to the global expansion of LTE and now into the 5G era, Sequans has aligned its IC roadmap with shifting wireless requirements. Four generations of WiMAX established broadband wireless access. Six generations of LTE expanded reach and efficiency, and drove the transition from broadband to IoT: Cat 1 (2015), LTE-M (2017), and Cat 1bis (2024), with the latest generation certified across seven major North American carriers. Today, one completed and one ongoing generation of 5G solutions extend this trajectory, spanning high-throughput and low-data-rate IoT use cases.  

This journey is equally defined by silicon-level transitions. Process nodes have advanced from 130nm to 12nm, enabling higher density, lower power consumption, and increased functionality per unit area. Architectures have evolved from standalone baseband to two-die implementations (baseband + RF), and ultimately to single-die solutions maximizing integration and efficiency.  

At the system level, innovation has been equally structural. Duplexing schemes have progressed from TDD to FDD (full-duplex and half-duplex), optimizing spectrum utilization across deployment scenarios and expanding coverage across bands. Receive architectures have evolved from SISO to MIMO, increasing capacity and link robustness. Waveform evolution from OFDM to OFDMA has enabled more efficient multi-user access and scheduling flexibility.  

Most importantly, the objective of connectivity has broadened. What began as a focus on broadband performance has evolved into a dual mandate: performance and efficiency. Sequans has driven this transition with cost- and power-optimized solutions for LPWA and IoT applications, where longevity, scalability, and energy efficiency are primary system constraints.  

Ten generations of ICs have been industrialized. The eleventh is in development. This continuity is the result of sustained engineering discipline and a precise understanding of how to leverage integrated circuit capabilities.  

The planar IC, pioneered by Noyce, building on Jean Hoerni’s planar process, Jack Kilby’s proof of concept, Kurt Lehovec’s isolation technique, and realized by Jay Last’s team at Fairchild, made scale possible. Sequans makes that scale effective, translating silicon capability into connectivity that improves with each generation.  

Sixty-five years on, April 25 is not just a milestone. It reflects a mindset put into practice: continuous optimization of silicon to meet the expanding demands of global connectivity.