San Jose, CA, United States of America

Keith K Chao

This inventor holds 23 USPTO granted patents, primarily in Optical Proximity Correction. Top assignees: Lsi Logic Corporation, Lsi Corporation. Active years: 1995-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keith K Chao. Retrieved from https://idiyas.com/inventor/keith-k-chao

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 13

Forward Citations = 1,344(Granted Patents)


Location History:

  • San Jose, CA (US) (1995 - 2003)
  • Saratoga, CA (US) (2004 - 2005)

Company Filing History:


Years Active: 1995-2005

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Areas of Expertise:
Optical Proximity Correction
Semiconductor Wafers
Resist Poisoning
Photomask Inspection
Design Rule Checkers
Reticle Formation
Density Adjustment
Aerial Image Comparison
Alignment Mark Profiles
Hydrogen Silsesquioxane
Curing Process
23 patents (USPTO):Explore Patents

Title: Innovative Contributions of Keith K Chao in Patent Technology

Introduction

Keith K Chao, based in San Jose, California, is a prolific inventor with an impressive portfolio of 23 patents. His innovative work primarily focuses on advancements in semiconductor technology, specifically involving dual damascene structures. Chao's contributions are significant in enhancing manufacturing processes for integrated circuits.

Latest Patents

Among his latest patents is a novel method for preventing resist poisoning in dual damascene structures. This method involves the etching of a first aperture in a dielectric layer and the formation of a poison barrier layer over parts of the dielectric. This barrier effectively prevents resist poisoning, a common issue in the manufacture of integrated circuits. Subsequently, a patterned mask is formed over the barrier layer, followed by etching a second aperture into the dielectric layer, ensuring that at least part of the first and second apertures shares the same area.

Career Highlights

Keith Chao has had a notable career at leading companies in the technology sector. He has worked with LSI Logic Corporation and LSI Corporation, where he has been instrumental in pioneering technologies that streamline semiconductor manufacturing processes. His expertise and innovative approaches have significantly contributed to the evolution of semiconductor technology.

Collaborations

Throughout his career, Keith has collaborated with other talented professionals, including Mario Garza and Nicholas K Eib. These collaborations have facilitated a dynamic exchange of ideas, leading to advancements in various areas of semiconductor development.

Conclusion

With his extensive experience and a strong portfolio of patents, Keith K Chao stands out as a key figure in the field of semiconductor innovations. His work continues to influence modern techniques in the manufacturing of integrated circuits, ensuring efficient and reliable technology for future advancements.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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