Ultra-X-treme: Ultrafast Ultrasound Imaging for Extended Diagnosis and Treatment of Vascular Disease
- Design of an Ultrasound Transceiver ASIC with a Switching-Artifact Reduction Technique for 3-D Carotid Artery Imaging
T. Kim; F. Fool; D. Simoes dos Santos; Z. Y. Chang; E. Noothout; H. J. Vos; J. G. Bosch; M. D. Verweij; N. de Jong; M. A. P. Pertijs;
Volume 21, Issue 1, pp. 150, January 2021. DOI: 10.3390/s21010150
Abstract: ...This paper presents an ultrasound transceiver application-specific integrated circuit (ASIC) directly integrated with an array of 12 × 80 piezoelectric transducer elements to enable next-generation ultrasound probes for 3D carotid artery imaging. The ASIC, implemented in a 0.18 µm high-voltage Bipolar-CMOS-DMOS (HV BCD) process, adopted a programmable switch matrix that allowed selected transducer elements in each row to be connected to a transmit and receive channel of an imaging system. This made the probe operate like an electronically translatable linear array, allowing large-aperture matrix arrays to be interfaced with a manageable number of system channels. This paper presents a second-generation ASIC that employed an improved switch design to minimize clock feedthrough and charge-injection effects of high-voltage metal–oxide–semiconductor field-effect transistors (HV MOSFETs), which in the first-generation ASIC caused parasitic transmissions and associated imaging artifacts. The proposed switch controller, implemented with cascaded non-overlapping clock generators, generated control signals with improved timing to mitigate the effects of these non-idealities. Both simulation results and electrical measurements showed a 20 dB reduction of the switching artifacts. In addition, an acoustic pulse-echo measurement successfully demonstrated a 20 dB reduction of imaging artifacts.
- Integrated Transceivers for Emerging Medical Ultrasound Imaging Devices: A Review
C. Chen; M. Pertijs;
IEEE Open Journal of the Solid-State Circuits Society,
Volume 1, pp. 104-114, September 2021. DOI: 10.1109/OJSSCS.2021.3115398
- A 12×80 Element Ultrasound Transceiver ASIC With Enhanced Charge Injection Performance for 3-D Carotid Artery Imaging
T. Kim; F. Fool; E. Kang; Z. Y. Chang; E. Noothout; J. G. Bosch; M. D. Verweij; N. de Jong; M. Pertijs;
In Proc. IEEE International Ultrasonics Symposium (IUS),
September 2020. abstract.