Al T Koh

Title: The Innovative Contributions of Al T Koh in Semiconductor Technology

Introduction

Al T Koh, an accomplished inventor based in Austin, TX, has made significant strides in the field of semiconductor technology, holding two patents that showcase his innovative spirit. His expertise in semiconductor device structures has propelled advancements in the industry, notably in the formation of isolation structures and transistor gates.

Latest Patents

One of Koh's latest patents is titled "Inverted isolation formed with spacers." This invention details a method for creating semiconductor devices with inverted isolation trenches featuring convex sidewalls. The process begins with the formation of composite isolation posts on a substrate through a series of deposition, lithography, and etching steps. Koh's method includes a bottom layer of silicon dioxide and an overlying etch-stop layer of silicon nitride, followed by the deposition of an insulating material that is etched to establish isolation structures with convex sidewall spacers. Additionally, active areas between these spacers are filled with semiconductor material, which may also include a strained cap layer for enhanced performance.

His other patent, "Method for forming a semiconductor device structure in a semiconductor layer," presents an innovative technique for fabricating transistor gates with two distinct work functions. This patent addresses the challenges associated with silicidation of different metals simultaneously, thereby preventing performance degradation of devices due to temperature inconsistencies during the process.

Career Highlights

Al T Koh has an impressive career within significant companies in the semiconductor industry. He has contributed his skills and knowledge at Freescale Semiconductor, Inc. and Motorola Corporation. His work at these prestigious organizations has allowed him to further develop his innovative ideas and practical applications in semiconductor technology.

Collaborations

Throughout his career, Koh has collaborated with several talented professionals, including coworkers Yeong-Jyh Tom Lii and Andrea Franke. These partnerships have enabled him to refine his inventions and enhance their applicability within the semiconductor sector.

Conclusion

Al T Koh stands out as a prominent inventor in the semiconductor field. His two patents reflect not only his technical proficiency but also his commitment to advancing semiconductor technology. As he continues to contribute to the industry, Koh's innovations will likely play a vital role in shaping future developments in semiconductor devices.