Company Filing History:
Years Active: 2003-2005
Title: Innovations of Hak-Do Yoo in Silicon Technology
Introduction
Hak-Do Yoo is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of silicon technology, particularly in the production of single crystalline silicon wafers and ingots. With a total of three patents to his name, his work has advanced the methods used in semiconductor manufacturing.
Latest Patents
One of Hak-Do Yoo's latest patents is focused on a single crystalline silicon wafer, ingot, and the producing method thereof. This invention relates to a single crystalline silicon ingot and wafer produced using the Czochralski method. It enables the reduction of a large defect area while increasing a micro-vacancy defect area in an agglomerated vacancy point area. This is achieved by providing uniform conditions for crystal ingot growth and cooling, as well as adjusting the pulling rate during ingot growth. As a result, the oxidation-induced stacking fault ring exists only at the edge of the ingot radius. Another notable patent is an apparatus for growing a single crystalline ingot. This apparatus includes a chamber with a quartz crucible for growing a single crystalline ingot of a predetermined diameter. The design incorporates a crucible supporter, a heater, and a thermal shield to optimize the growth process.
Career Highlights
Hak-Do Yoo is currently employed at Siltron, Inc., where he continues to innovate in the field of silicon technology. His work has been instrumental in enhancing the quality and efficiency of silicon wafer production, which is crucial for the semiconductor industry.
Collaborations
He has collaborated with notable colleagues such as Hong-Woo Lee and Joon-Young Choi, contributing to various projects that aim to improve silicon production techniques.
Conclusion
Hak-Do Yoo's contributions to silicon technology through his patents and work at Siltron, Inc. highlight his role as an influential inventor in the semiconductor field. His innovations continue to shape the future of silicon wafer production.
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