Company Filing History:
Years Active: 2003-2004
Title: Innovations by Inventor Li-Chi Chen in Semiconductor Technologies
Introduction: Li-Chi Chen is a notable inventor based in Taipei, Taiwan, recognized for his significant contributions to semiconductor technology. With a total of two patents, he has developed innovative processes that enhance the reliability and efficiency of semiconductor devices.
Latest Patents: Among his latest inventions, Li-Chi Chen holds two patents. The first is titled "Fluxless bumping process using ions." This process involves providing a semiconductor device that includes a bond pad and an under bump metallurgy overlying the bond pad. The procedure includes forming a solder structure over the under bump metallurgy, which consists of an outer layer containing tin oxide. The innovation further involves producing a plasma using gases such as CF, SF, and H, followed by exposing the solder structure to the plasma. Ultimately, heating and cooling the solder structure results in a solder bump on the semiconductor device.
The second patent is called "Method to improve reliability for flip-chip device for limiting pad design." This method outlines a comprehensive fabrication process for solder bumps, beginning with a UBM (Under Bump Metallurgy) positioned over a substrate with an exposed pad portion. The method carefully details the formation and exposure of two patterning layers made of photosensitive materials that are sensitive to different wavelengths. Through selective exposure and removal of specific unexposed portions, the process creates openings for solder plugs, which are then reflowed to form reliable solder bumps.
Career Highlights: Li-Chi Chen is currently affiliated with Taiwan Semiconductor Manufacturing Company Limited (TSMC), a leader in the semiconductor manufacturing industry. His work at TSMC has been pivotal in advancing technologies that improve semiconductor reliability and performance.
Collaborations: Throughout his career, Li-Chi Chen has worked alongside esteemed colleagues, including Hsin-Hui Lee and Chia-Fu Lin. Collaborating with talented individuals allows for a rich exchange of ideas and innovation in their respective fields.
Conclusion: Li-Chi Chen's contributions to semiconductor technology through his inventive processes are significant. With his two patents, he demonstrates the importance of continuous innovation in improving device reliability and efficiency. His work at Taiwan Semiconductor Manufacturing Company Limited and collaboration with skilled professionals like Hsin-Hui Lee and Chia-Fu Lin underscore the collaborative spirit of invention and innovation in the tech industry.