Ho-Jun Yi

Title: Ho-Jun Yi: Innovator in Semiconductor Manufacturing

Introduction

Ho-Jun Yi is a prominent inventor based in Yongin-si, South Korea. He has made significant contributions to the field of semiconductor manufacturing, holding 2 patents that showcase his innovative approaches to technology.

Latest Patents

His latest patents include methods of manufacturing semiconductor devices. These methods allow for the formation of two different kinds of contact holes with varying sizes using a single photolithography process. The process involves preparing a semiconductor substrate with an active region tilted diagonally. A hard mask is applied to the substrate, followed by the deposition of a first oxide layer. The hard mask is then removed to create a piston-shaped sacrificial pattern. A first polysilicon layer is deposited and patterned to form a cylindrical first sacrificial mask. A second oxide layer is coated to create voids, and a second polysilicon layer is deposited in these voids to form a pillar-shaped second sacrificial mask. This innovative method enhances the sectional area of buried contact storage pads while reducing the area of direct contact bit line pads.

Another notable patent involves a method of forming a wire structure. In this method, first and second active regions are created on a substrate, with an isolation layer positioned between them. A first mask is formed to expose the first sidewall of the first active regions, allowing for etching to create a groove and a fence structure. A wire is then formed to fill the groove, culminating in the formation of a contact disposed toward the second active regions.

Career Highlights

Ho-Jun Yi is currently employed at Samsung Electronics Co., Ltd., where he continues to push the boundaries of semiconductor technology. His work has been instrumental in advancing manufacturing processes that are critical to the electronics industry.

Collaborations

He has collaborated with notable coworkers, including Dae-Ik Kim and Yong-il Kim, contributing to a dynamic team focused on innovation in semiconductor manufacturing.

Conclusion

Ho-Jun Yi's contributions to semiconductor manufacturing through his innovative patents reflect his expertise and commitment to advancing technology. His work at Samsung Electronics Co., Ltd. continues to influence the industry significantly.