Company Filing History:
Years Active: 1985
Title: W Stewart Lindenberger: Innovator in Electroacoustic Transducers
Introduction
W Stewart Lindenberger is a notable inventor based in Somerset, NJ (US). He has made significant contributions to the field of electroacoustic transducers, holding a total of 2 patents. His work primarily focuses on integrating these transducers into semiconductor technology, enhancing their functionality and application.
Latest Patents
Lindenberger's latest patents include an "Integrated Capacitive Transducer" and an "Integrated Electroacoustic Transducer with Built-in Bias." The Integrated Capacitive Transducer patent discloses an electroacoustic transducer, such as a microphone, which can be integrated into a semiconductor chip. This innovation involves etching the semiconductor to create a membrane that vibrates at audio frequencies. The design allows for an electrical output signal to be derived from these audio frequencies due to variable capacitance. The sensitivity of the device is engineered to be an approximately linear function of sound pressure level, making it compatible with amplification.
The Integrated Electroacoustic Transducer with Built-in Bias patent describes a structure that can be formed in a semiconductor substrate and incorporated into an integrated circuit. This transducer provides a built-in DC bias for operation, achieved by maintaining an appropriate density of fixed charge in an insulating layer adjacent to one of the electrodes. The patent also outlines methods of manufacture, including techniques for introducing charge through various means such as liquid mediums, plasma charging, or ion beam implantation.
Career Highlights
Lindenberger has had a distinguished career at AT&T Bell Laboratories, where he has been instrumental in advancing the technology behind electroacoustic devices. His innovative approaches have paved the way for new applications in the field, showcasing his expertise and commitment to research and development.
Collaborations
Throughout his career, Lindenberger has collaborated with esteemed colleagues, including Ilene J Busch-Vishniac and Tommy L Poteat. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
W Stewart Lindenberger's contributions to the field of electroacoustic transducers highlight his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of semiconductor integration and its applications in modern devices.