This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Qualcomm Incorporated. Active years: 2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2025
Title: Hsiang-Chi Liu: Innovator in Ultrasonic Fingerprint Technology
Introduction
Hsiang-Chi Liu is a notable inventor based in Taoyuan, Taiwan. He has made significant contributions to the field of technology, particularly in the development of devices that enhance fingerprint recognition systems.
Latest Patents
Hsiang-Chi Liu holds a patent for devices that include one or more high-impedance layers situated between a display stack and an ultrasonic fingerprint sensor stack. This innovative apparatus comprises a display stack, an ultrasonic sensor stack, and a high-impedance stack featuring one or more high-impedance layers. The ultrasonic sensor stack consists of an ultrasonic transceiver layer and an ultrasonic transceiver circuitry (UTC) layer. Each high-impedance layer possesses an acoustic impedance that exceeds that of the UTC layer. The combination of the high-impedance stack and the ultrasonic sensor stack creates an acoustic resonator, which is bounded by the UTC layer and the high-impedance stack. This acoustic resonator is designed to enhance the ultrasonic waves transmitted by the ultrasonic sensor stack at a peak frequency, which is crucial for obtaining fingerprint images. The thickness of the apparatus stack portion that includes the ultrasonic sensor stack corresponds to a multiple of a quarter wavelength at the peak frequency.
Career Highlights
Hsiang-Chi Liu is currently employed at Qualcomm Incorporated, a leading company in the field of telecommunications and semiconductor technology. His work focuses on advancing fingerprint recognition technology, which is increasingly important in modern devices.
Collaborations
Some of Hsiang-Chi Liu's coworkers include Jessica Liu Strohmann and Shiang-Chi Lin, who contribute to the innovative environment at Qualcomm.
Conclusion
Hsiang-Chi Liu's contributions to ultrasonic fingerprint technology exemplify the innovative spirit that drives advancements in the tech industry. His patent reflects a significant step forward in enhancing the accuracy and efficiency of fingerprint recognition systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile