Shiang-Peng Cheng

Title: Shiang-Peng Cheng: Innovator in Semiconductor Technology

Introduction

Shiang-Peng Cheng is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of semiconductor technology, holding a total of 8 patents. His work primarily focuses on light-emitting devices and methods to enhance their performance.

Latest Patents

One of his latest patents is for a semiconductor light-emitting device with a conductive window layer. This invention involves a structure where the light-emitting area is either a double heterostructure or a multi-layer quantum well structure. The light-emitting area is formed on a substrate, and an electrically conductive oxide layer is added as a transparent window layer to eliminate the crowding effect. The substrate consists of a GaAs substrate and a GaAsP layer, which increases the band gap energy. The oxide layer is made of AlZnO(x) material, known for its lower electrical resistivity and high transparency in the visible wavelength region. The window layer is formed using physical vapor deposition or metalorganic chemical vapor deposition techniques.

Another notable patent is a method of reducing pinholes in a nitride passivation layer. In this process, a metal interconnection is created on a dielectric layer, followed by a pre-treatment to remove organic materials from the metal layer's surface. This pre-treatment is achieved through plasma bombardment using NH.sub.3 and NO.sub.2 as reaction gases. A thin oxide layer is then deposited on both the metal and dielectric layers, serving as a buffer to alleviate stress between the metal layer and the subsequent silicon nitride layer, which acts as a passivation layer.

Career Highlights

Shiang-Peng Cheng has worked with notable companies in the semiconductor industry, including Vanguard International Semiconductor Corporation and Kingmax Technology Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Throughout his career, Cheng has collaborated with talented individuals such as Ying-Fu Lin and Liang-Tung Tony Chang. These collaborations have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Shiang-Peng Cheng is a distinguished inventor whose work in semiconductor technology has led to significant advancements in the field. His innovative patents and collaborations highlight his commitment to enhancing the performance of light-emitting devices.