Deformable Chiplet-Based Computer Using Inductively Coupled Wireless Communication

Abstract

Research on microrobot swarms and deformable user interfaces has been conducted extensively. Inductively coupled wireless bus technology has been proposed for such applications. This technology uses inductive coupling among on-chip coils to connect multiple chiplets wirelessly. By wirelessly connecting small chiplets, it is possible to construct deformable systems with various chip configurations. The prototype chip, which has a 32-bit RISC-V processor core and a wireless communication interface, is fabricated in 1.18-µm CMOS technology. The prototype validates that inductively coupled wireless data communication can be achieved between two processor chiplets.