Company Filing History:
Years Active: 2002-2012
Title: Yonghwa Chris Cha: Innovator in Solar Cell Technology
Introduction
Yonghwa Chris Cha is a prominent inventor based in San Jose, CA, known for his significant contributions to solar cell technology. With a total of 9 patents to his name, he has been at the forefront of developing innovative solutions that enhance the efficiency of solar energy systems.
Latest Patents
One of his latest patents focuses on "Hybrid heterojunction solar cell fabrication using a doping layer mask." This invention outlines a novel processing sequence to create high-efficiency solar cells. The method involves forming a doping layer on the back surface of a substrate, followed by heating to allow the doping layer to diffuse into the substrate. The process continues with texturing the front surface, applying a dielectric layer, and strategically removing portions to expose regions of the substrate for metal layer deposition. This innovative approach ensures that the metal layer is in electrical communication with the doped regions, enhancing the solar cell's performance.
Another significant patent by Cha is titled "Forming solar cells using a patterned deposition process." This invention describes methods for creating high-efficiency solar cells by defining the boundaries of active regions and contact structures through dielectric material deposition. Various techniques are employed to form the active regions and metal contact structures, showcasing Cha's commitment to advancing solar technology.
Career Highlights
Yonghwa Chris Cha is currently employed at Applied Materials, Inc., a leading company in the field of materials engineering. His work at Applied Materials has allowed him to push the boundaries of solar technology and contribute to the development of more efficient energy solutions.
Collaborations
Throughout his career, Cha has collaborated with notable colleagues, including Timothy Weidman and Rohit Mishra. These partnerships have fostered an environment of innovation and creativity, leading to groundbreaking advancements in solar cell technology.
Conclusion
Yonghwa Chris Cha's contributions to solar cell technology through his patents and work at Applied Materials, Inc. highlight his role as a key innovator in the field. His dedication to enhancing solar energy efficiency continues to impact the industry positively.