Company Filing History:
Years Active: 2006-2007
Title: **Innovative Contributions of Ya-Lun Cheng in Semiconductor Technology**
Introduction
Ya-Lun Cheng, an inventive mind based in Taipei, Taiwan, has made substantial advancements in the field of semiconductor cleaning and transistor formation. With three patents to his name, Cheng's work emphasizes innovation and efficiency in semiconductor processes.
Latest Patents
Cheng's latest patents illustrate his commitment to improving semiconductor technologies. The first patent, titled "Method of cleaning a semiconductor substrate," presents a novel cleaning method and recipes. This invention employs a first cleaning solution consisting of diluted hydrofluoric acid, paired with a second solution containing hydrogen chloride and hydrogen peroxide, thus eliminating the need for traditional alkaline solutions such as ammonium hydroxide. This groundbreaking approach ensures a clean surface essential for selective epitaxial growth (SEG), ultimately facilitating the growth of a smooth epitaxial layer.
The second patent, "Method of forming a transistor using selective epitaxial growth," outlines a comprehensive approach to transistor formation. The process begins with the establishment of at least one gate structure on the semiconductor substrate. Following this, a chemical oxidation method is used to create a first oxide layer on the uncovered surface of the substrate, which is then removed. The culmination of this method is the implementation of a selective epitaxial growth strategy that enables the formation of a first epitaxial layer on the substrate.
Career Highlights
Ya-Lun Cheng is associated with United Microelectronics Corporation, a prominent player in the semiconductor industry. His innovative contributions have not only enhanced the company's technological offerings but also set new standards in semiconductor processing.
Collaborations
In his professional journey, Cheng has collaborated with notable colleagues including Chin-Cheng Chien and Neng-Hui Yang. These partnerships reflect a culture of teamwork and shared expertise that drives innovation in their projects.
Conclusion
The endeavors of Ya-Lun Cheng represent significant strides in semiconductor technology. His methods for cleaning substrates and forming transistors illustrate the impact of innovative thinking in enhancing semiconductor manufacturing processes. As he continues to lead in this field, Cheng's contributions are expected to yield further advancements in the industry.