Abstract:Piezoelectric and acousto-optic devices are essential functional components of modern electronic and in formation systems. However, most piezoelectric and acousto-optic devices are manufactured using special materials and processes that are highly different from silicon integrated chips, making it difficult to integrate these devices with silicon integrated circuit chips, which in turn affects the performance, volume, and cost of the systems. In re cent years, the advances of three-dimensional (3D) integration technology have paved the way for heterogeneous in tegration of piezoelectric and acousto-optic devices with different materials and processes, as well as silicon chips. This paper introduces the concept, classification, and implementation methods of 3D integration technologies, and focuses on the heterogeneous integration schemes and research progress of optoelectronic and piezoelectric materials and device with silicon integrated circuits, especially the integration of photonic and piezoelectric acoustic devices with silicon integrated chips.