A 1.2mW/channel 100µm-Pitch-Matched Transceiver ASIC with Boxcar-Integration-Based RX Micro-Beamformer for High-Resolution 3D Ultrasound Imaging

📋 论文概要

该论文提出了一种用于高分辨率3D超声成像的收发器ASIC，实现了100µm间距匹配和1.2mW/通道的低功耗。通过基于Boxcar积分的RX微波束形成器，解决了高频换能器阵列集成中的功耗和面积挑战。

💡 主要创新点

• 提出基于Boxcar积分的接收微波束形成器，在低功耗下实现高分辨率波束形成。
• 实现100µm间距匹配的收发器ASIC，支持高频换能器阵列（>5MHz）的3D超声成像。
• 每通道仅1.2mW的超低功耗设计，适用于微型化超声探头。

🏷 关键词

📄 原文摘要

Johan G. Bosch2, Martin D. Verweij1,2, Nico de Jong1,2, Michiel A. P. Pertijs1 Delft University of Technology, Delft, The Netherlands 2 Erasmus MC, Rotterdam, The Netherlands 1 The integration of 2D ultrasonic transducer arrays and pitch-matched ASICs has enabled the realization of various 3D ultrasound imaging devices in recent years [1-3]. As applications such as 3D intravascular ultrasonography, intra-cardiac echocardiography, and trans-fontanelle ultrasonography call for miniaturization and improved spatial resolution, higher-frequency transducers (>5MHz) with a correspondingly smaller array pitch (<150µm) are needed. Such devices generally employ a large number of transducer elements, calling for channel-count reduction in the ASIC while meeting stringent restrictions on per-element power consumption and die area. Micro-beamforming (μBF) is an effective way of reducing channel count by performing a delay-and-sum operation

👥 作者与机构

Peng Guo1, Fabian Fool1, Emile Noothout1, Zu-Yao Chang1, Hendrik J. Vos1,2,