학술논문
Recent Advances and Challenges of 2D Fourier Transform Computational Accelerator Using GHz Ultrasonics
Document Type
Conference
Author
Source
2023 IEEE 23rd International Conference on Nanotechnology (NANO) Nanotechnology (NANO), 2023 IEEE 23rd International Conference on. :1042-1047 Jul, 2023
Subject
Language
ISSN
1944-9380
Abstract
This paper reports on the latest advances and challenges of a 2D Fourier Transform Computational Accelerator using GHz Ultrasonics. Firstly, the accelerator architecture is presented in four parts: (1) a brief overview of the system architecture and the principles of Fourier Transform using ultrasonic waves; (2) CMOS circuit architecture of the transmitter and receiver IC; (3) MEMS transducer pixel design and post-CMOS integration; and (4) GHz acoustic meta-lens design. The following section discusses the latest advances in the sonic DAC and front-end receiver CMOS circuit testing, CMOS-MEMS integration, fabrication of GHz flat acoustic meta-lens, and studies of a novel low-temperature heterogeneous integration process suitable for GHz acoustic transmission.