Location History:
- Hsinchu Hsien, TW (2001)
- Chu-Pei, TW (2002)
Company Filing History:
2 out of 7,087 
1 out of 832,880 Years Active: 2001-2002
Title: Innovations of Wen-Hua Cheng
Introduction
Wen-Hua Cheng is a notable inventor based in Hsinchu Hsien, Taiwan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on improving processes in etching and fabricating MOS devices.
Latest Patents
One of his latest patents is the "Waferless seasoning process." This innovative process is designed for an etching chamber of an etching machine, particularly when the etching environment is compromised. It involves a dry cleaning process utilizing a plasma formed by oxygen and hydrogen bromide to restore the etching environment. Another significant patent is the "Method of fabricating a MOS device using a sacrificial layer and spacer." This method outlines a detailed process for fabricating a MOS transistor, which includes forming a gate on a substrate, creating a spacer, and utilizing a sacrificial layer to facilitate the formation of source/drain regions.
Career Highlights
Wen-Hua Cheng has worked with prominent companies in the semiconductor industry, including United Microelectronics Corporation. His experience in these organizations has contributed to his expertise and innovative capabilities in the field.
Collaborations
Wen-Hua Cheng has collaborated with several professionals, including Chun-Lung Chen and Hsi-Mao Hsiao, who have contributed to his projects and innovations.
Conclusion
Wen-Hua Cheng's contributions to semiconductor technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative processes continue to influence advancements in etching and MOS device fabrication.