Location History:
- Keelung, TW (1996 - 2000)
- Hsien-Chu, TW (2002)
- Hsinchu, TW (2007)
Company Filing History:
Years Active: 1996-2007
Title: Innovations by Hsien-Tsong Liu: Advancements in CMOS Image Sensors and Testing Technologies
Introduction
Hsien-Tsong Liu is a notable inventor based in Hsinchu, Taiwan, recognized for his contributions to the field of semiconductor technology. With a total of four patents to his name, Liu has significantly influenced advancements in CMOS image sensors and testing methodologies.
Latest Patents
Among Liu's latest innovations is a patent for a method to prevent white pixels in CMOS image sensors. This inventive technique involves isolating the photodiode in the pixel layout of an image sensor. The configuration enables a depletion region to remain in a defect-free area, thus reducing white pixel issues caused by undesired current. This advancement helps enhance the reliability and performance of CMOS image sensors.
Another significant patent involves an apparatus and method for preparing backside-ground wafers for testing. This innovation outlines a thorough process that begins with a calibration wafer featuring a specific pattern on an insulating material's surface. By applying droplets of water between the calibration wafer and the backside-ground wafer, a bond is formed through capillary reaction, leading to effective testing methodologies that improve accuracy and efficiency in semiconductor fabrication.
Career Highlights
Hsien-Tsong Liu works at Taiwan Semiconductor Manufacturing Company Limited, where he continues to drive innovation in semiconductor technology. His expertise has resulted in patents that address critical challenges in the industry.
Collaborations
Liu is known to collaborate with esteemed colleagues such as Yeh-Jye Wann and Kuen-Hsien Lin. Their joint efforts have contributed to the development of advanced technologies, enhancing the capabilities and performance of semiconductor devices.
Conclusion
Through his inventions and collaborations, Hsien-Tsong Liu has made a lasting impact on the semiconductor sector. His patents not only demonstrate his innovative spirit but also pave the way for future research and advancements in the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.