Yen-Kei Lei

Title: Yen-Kei Lei: Innovator in Light Emitting Diode Technology

Yen-Kei Lei is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of light emitting diode (LED) technology. With a total of 2 patents, his work focuses on innovative manufacturing methods for LED chips.

Latest Patents

Yen-Kei Lei's latest patents include a method for manufacturing light emitting diode chips. This manufacturing method involves several steps, such as providing a substrate and forming a light emitting layer that comprises both an n-type semiconductor layer and a p-type semiconductor layer on the substrate. The process also includes forming a pair of electrodes that are electrically connected to the n-type and p-type semiconductor layers. Additionally, a bonding wire is connected to one of the electrodes by adding melted metal to a portion of the top surface of the electrode. The ratio between the area of this portion and the top surface of the electrode is no less than 6:10. The melted metal is then solidified to form a bonding pad that connects the bonding wire and the electrode together.

Another patent focuses on an exemplary LED chip that includes a substrate, a buffer layer formed on the substrate, and a light emitting layer formed on the buffer layer. This light emitting layer also consists of an n-type semiconductor layer and a p-type semiconductor layer. The first electrode is electrically connected to one of these semiconductor layers, while the second electrode is connected to the other. A bonding pad is formed on the top surface of the first electrode, and a bonding wire is secured to this bonding pad. The ratio between the contacting area of the bonding pad and the top surface of the first electrode is maintained at no less than 6:10.

Career Highlights

Yen-Kei Lei is currently employed at Advanced Optoelectronic Technology, Inc. His work at this company has allowed him to further develop his expertise in LED technology and contribute to advancements in the field.

Collaborations

Yen-Kei Lei collaborates with Ko-Wei Chien, a talented woman in the same field. Their partnership has fostered innovation and creativity in their projects.

Conclusion

Yen-Kei Lei is a prominent inventor whose work in LED technology has led to significant advancements in manufacturing methods. His contributions continue to impact the industry positively.