Lay Cheng Choo

Title: **Profile of Inventor Lay Cheng Choo**

Introduction

Lay Cheng Choo is an accomplished inventor based in Singapore, recognized for his significant contributions in the field of optoelectronics and semiconductor manufacturing. With a total of three patents to his name, Lay has demonstrated a commitment to innovation and technological advancement. His work is particularly noted for enhancing the efficiency and functionality of semiconductor devices.

Latest Patents

Among his latest patents, the most noteworthy include:

1. **Flip-chip optoelectronic device**: This invention comprises a semiconductor die with an advanced structure featuring a substrate layer, laser diode, and multiple conducting pads. A unique aspect of this design is the direct formation of conducting pads on the substrate layer, which markedly improves heat dissipation. Additionally, the positioning of the cathode and anode pads facilitates a specialized attachment method that reduces solder bonding stress on the laser diode.

2. **Application of single exposure alternating aperture phase shift mask to form sub 0.18 micron polysilicon gates**: This innovative fabrication method employs an alternating aperture phase shift mask (AAPSM) to pattern polysilicon gates effectively in a single exposure, without requiring a trim mask. The process includes several critical steps, such as the deposition of a gate dielectric layer and the creation of shallow trench isolations, culminating in the formation of highly efficient polysilicon gates.

Career Highlights

Lay Cheng Choo has made notable strides in his career by working with esteemed companies including Denselight Semiconductor Pte Ltd and Chartered Semiconductor Manufacturing Ltd. His experiences in these organizations have enriched his expertise and significantly contributed to his innovative projects.

Collaborations

Throughout his career, Lay has collaborated with leading professionals in the field, including Yee Loy Lam and Yuen Chuen Chan. These partnerships have fostered a collaborative environment that nurtures creativity and innovation, resulting in groundbreaking advancements in semiconductor technology.

Conclusion

In summary, Lay Cheng Choo stands out as a significant figure in the invention and innovation domain, particularly in the areas of optoelectronic devices and semiconductor technology. His patents reflect a deep understanding of complex engineering challenges, and his collaborative efforts with notable colleagues further enhance his contributions to the industry. The impact of his work is expected to resonate within the technological landscape for years to come.