Company Filing History:
Years Active: 2025
Title: Innovations by Shaojui Li in Ultrasonic Fingerprint Technology
Introduction
Shaojui Li is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of technology, particularly in the area of ultrasonic fingerprint sensors. His innovative approach has led to the development of a unique apparatus that enhances the functionality of fingerprint imaging.
Latest Patents
Shaojui Li 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 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 forms 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 accurate 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
Shaojui Li is currently employed at Qualcomm Incorporated, a leading company in the field of telecommunications and semiconductor technology. His work at Qualcomm has allowed him to push the boundaries of innovation in fingerprint sensing technology.
Collaborations
Some of his notable coworkers include Jessica Liu Strohmann and Shiang-Chi Lin, who contribute to the collaborative environment at Qualcomm.
Conclusion
Shaojui Li's innovative work in ultrasonic fingerprint technology exemplifies the advancements being made in the field. His patent reflects a significant step forward in enhancing the accuracy and efficiency of fingerprint imaging systems.