Company Filing History:
4 out of 4 
2 out of 2 
3 out of 832,812 Years Active: 1988-2002
Title: Innovations of Arun Madan
Introduction
Arun Madan is a notable inventor based in Golden, Colorado, recognized for his contributions to semiconductor technology. With a total of 9 patents, he has made significant advancements in the field of vacuum deposition systems and methods.
Latest Patents
One of his latest patents is a semiconductor vacuum deposition system and method featuring a reel-to-reel substrate cassette. This innovative design includes two physically spaced and parallel reels, allowing a long web of flexible substrate material to be wound around one reel while the exposed end connects to the other reel. This setup exposes a short length of the substrate material at a fixed-position deposition plane. The system incorporates idler rollers to guide the web as it moves between the reels, ensuring accurate deposition of semiconductor layers across the entire length of the web. Additionally, a protective layer is integrated into the web to safeguard the semiconductor layers during the winding process.
Another significant patent by Arun Madan is a hot wire chemical vapor deposition method and apparatus utilizing graphite hot rods. This method fabricates high-quality amorphous, micro-crystalline, and poly-crystalline thin film silicon. The process involves silane gas interacting with a hot graphite rod assembly, which breaks down the gas into its constituents for deposition on an inert substrate. The adjustable distance between the hot assembly and the substrate, along with a shutter mechanism, enhances the efficiency and quality of the deposition process.
Career Highlights
Arun has worked with Glasstech Solar, Inc., where he applied his expertise in semiconductor technologies. His innovative approaches have contributed to advancements in solar energy applications and related fields.
Collaborations
Throughout his career, Arun has collaborated with notable professionals, including Jianping Xi and Bolko Von Roedern. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Arun Madan's contributions to semiconductor technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative methods continue to influence advancements in the industry.