Lung-Chien Chen

Title: Innovations of Lung-Chien Chen in Light Emitting Diodes

Introduction

Lung-Chien Chen is a notable inventor based in Pa Te, Taiwan. He has made significant contributions to the field of light emitting diodes (LEDs), holding a total of three patents. His work focuses on enhancing the efficiency and performance of LED technology.

Latest Patents

One of Lung-Chien Chen's latest patents is a method for manufacturing a light emitting diode with a permanent substrate of transparent glass or quartz. This innovative method involves growing a light emitting region on a temporary substrate, bonding a transparent substrate to the light emitting region, and subsequently removing the temporary substrate. A unique metal bonding agent serves as both an ohmic contact layer and a bonding agent for the transparent substrate, forming a dual substrate LED element. This element is then subjected to a heating process that utilizes a specially designed wafer holding device, which applies pressure to assist in the bonding process.

Another significant patent is for a light emitting diode that features a layer of AlGaInP graded composition. This LED design includes a double hetero structure with an upper cladding layer that has a graded composition. The structure comprises a GaAs substrate, an ohmic contact, an AlGaInP lower cladding layer, an active layer, and an upper cladding layer. The graded composition in the upper cladding layer enhances the brightness of the LED while reducing the forward bias voltage, making it a valuable advancement in LED technology.

Career Highlights

Lung-Chien Chen is currently associated with Visual Photonics Epitaxy Co., Ltd., where he continues to innovate in the field of photonics and semiconductor technology. His work has contributed to the advancement of LED applications, making them more efficient and effective for various uses.

Collaborations

Lung-Chien Chen has collaborated with notable colleagues such as Kun-Chuan Lin and Kuo-Hsiung Chang. These collaborations have fostered a productive environment for innovation and development in LED technology.

Conclusion

Lung-Chien Chen's contributions to the field of light emitting diodes exemplify the importance of innovation in technology. His patents reflect a commitment to enhancing LED performance and efficiency, marking him as a significant figure in the industry.