David Ho Poh

Title: Innovations by David Ho Poh

Introduction

David Ho Poh is a notable inventor based in Singapore, known for his contributions to the field of electronics. He has been awarded 2 patents for his innovative work, particularly in the area of signal processing and integrated circuit technology.

Latest Patents

One of his latest patents is titled "Sigma delta modulator with automatic saturation detection and recovery." This invention describes a forward feed sigma delta modulator of higher order that features automatic saturation detection and recovery. The modulator is divided into two parts that connect when there is no saturation and disconnect when saturation is detected, allowing for continuous operation. The first part includes an integrator and input-output circuitry, while the second part contains additional integrators for higher order modulation and a saturation detector. The modulator can be constructed using single-ended or differential switched capacitor technology, incorporating a digital saturation detection scheme.

Another significant patent is the "Method for fabricating a shielded multilevel integrated circuit capacitor." This patent discloses a multilevel capacitor structure that is compatible with CMOS processing for use in switched capacitor circuits. The design minimizes the impact of parasitic capacitance on circuit performance by strategically placing the parasitic capacitor between a first plate of the shielded capacitor and a diffusion well within a substrate. This well is connected to a quiet voltage reference source, isolating the shielded capacitor from substrate noise. The capacitor structure features plates made from various conductive materials, ensuring optimal performance in integrated circuits.

Career Highlights

David Ho Poh is currently employed at Tritech Microelectronics, Ltd., where he continues to innovate in the field of electronics. His work has significantly contributed to advancements in integrated circuit design and signal processing technologies.

Collaborations

He collaborates with Liusheng Liu, a fellow innovator in the field, to further enhance their research and development efforts.

Conclusion

David Ho Poh's contributions to electronics through his patents and work at Tritech Microelectronics, Ltd. highlight his role as a significant inventor in the industry. His innovative designs continue to influence the development of advanced electronic systems.