Sang Hoon Park

Title: Innovations of Sang Hoon Park

Introduction

Sang Hoon Park is a notable inventor based in Portland, OR (US). He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work focuses on enhancing the performance and efficiency of bipolar transistors.

Latest Patents

One of his latest patents is for a self-aligned NPN transistor with a raised extrinsic base. This innovation provides a self-aligned bipolar transistor and a method of formation that reduces link base resistance. The design features a thicker extrinsic base compared to the intrinsic base, resulting in a less resistive layer in the heavily doped base region. The method involves depositing a first epitaxial layer on a substrate to create a base region with both intrinsic and extrinsic components. A second epitaxial layer is then deposited to raise the extrinsic base region, ensuring that the thickness of the extrinsic base layer is greater than that of the intrinsic layer. The process utilizes a chemical vapor epitaxial device, gradually reducing the concentration of Ge to Si during the epitaxy process.

Another significant patent involves a method of removing a sacrificial emitter feature in a bipolar complementary metal oxide semiconductor (BICMOS) process. This method employs a mask layer, such as an oxide deposited using high-density plasma techniques, over an extrinsic base layer and a sacrificial emitter structure. The unique characteristics of the HDP oxide allow for the complete removal of the sacrificial emitter structure while protecting the underlying extrinsic base layer.

Career Highlights

Sang Hoon Park is currently employed at Maxim Integrated Products, Inc., where he continues to innovate in the semiconductor industry. His work has been instrumental in advancing the technology used in various electronic devices.

Collaborations

He has collaborated with notable coworkers, including Alexander Kalnitsky and Robert F. Scheer, contributing to a dynamic and innovative work environment.

Conclusion

Sang Hoon Park's contributions to semiconductor technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative approaches continue to influence the development of advanced electronic components.