Chun-Mai Liu

Title: Chun-Mai Liu: Innovations in Semiconductor Technologies

Introduction:

Chun-Mai Liu, a prolific inventor based in San Jose, California, has made significant contributions to the field of semiconductor technologies. With 13 patents to his name, Liu has demonstrated his expertise in optimizing temperature dependence in ion-implanted resistors and developing variable impedance networks. His innovative solutions have garnered recognition and have been embraced by various companies in the industry. Let's explore Liu's latest patents, career highlights, and collaborations.

Latest Patents:

Liu's latest patents showcase his expertise in optimizing temperature dependence and developing variable impedance networks. The first patent, "Semiconductor diffused resistors with optimized temperature dependence," describes the fabrication of resistors with a different conductivity type from the silicon substrate. By controlling the dose of the implant, Liu has achieved temperature variations of less than 2% over a wide range (-40°C to +85°C) and nearly zero temperature variation at room temperature. This innovation opens up possibilities for enhanced performance and stability in semiconductor devices.

The second patent, "Variable impedance network with coarse and fine controls," presents an impedance network with multiple impedance elements, end terminals, and a wiper terminal. Liu's design allows for selective tap positions through switching elements, providing coarse and fine control over the impedance. This invention offers greater flexibility in various applications that require precise impedance matching.

Career Highlights:

Throughout his career, Chun-Mai Liu has made significant contributions to the semiconductor industry. He has served key roles in renowned companies such as Winbond Electronics Corporation and Information Storage Devices, Inc. At Winbond Electronics Corporation, Liu played a vital role in advancing the company's technological capabilities. His innovative ideas and expertise have contributed to the company's success in the highly competitive semiconductor market. During his tenure at Information Storage Devices, Inc., Liu continued to develop cutting-edge solutions, further establishing his reputation as a forward-thinking inventor.

Collaborations:

Liu's collaborations with industry professionals have been instrumental in his patent achievements. One notable collaborator is Albert V Kordesch, who has worked closely with Liu to develop innovative solutions in the field of semiconductor technologies. Their combined expertise has produced groundbreaking inventions that have made a lasting impact on the industry. Another influential collaborator is Kung-Yen Su, who has shared their insights with Liu, leading to more refined and efficient patentable solutions.

Conclusion:

Chun-Mai Liu's expertise in semiconductor technologies has led to the creation of innovative solutions addressing temperature dependence optimization and variable impedance networks. His patents highlight his commitment to enhancing performance, stability, and flexibility in semiconductor devices. With a successful career and collaborations with esteemed professionals, Liu continues to shape the future of the semiconductor industry. His contributions have positioned him as a respected name in the field, propelling advancements and inspiring inventors around the world.