Chien-Yi Chang

Title: Innovations of Chien-Yi Chang

Introduction

Chien-Yi Chang is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of electronics, holding a total of seven patents. His work primarily focuses on input buffer circuits and clock signal generation, showcasing his expertise in circuit design and innovation.

Latest Patents

One of his latest patents is an input buffer circuit. This circuit includes an input differential amplifier unit, a differential amplifier stage, and a buffer. The input differential amplifier unit has input terminals and at least one output terminal, wherein at least two of the input terminals are configured to be capacitively coupled to provide signal paths for a first and second input signal of a differential input signal. The differential amplifier stage is coupled to the input differential amplifier unit and has first and second differential input terminals, capable of being coupled to the first and second input signals respectively. The buffer, coupled to the output terminal of the differential amplifier stage, is used for outputting a single-ended signal.

Another significant patent is a circuit and method for generating multiphase clock signals and corresponding indication signals. This circuit includes a multiphase clock generation circuit, a DLL circuit, a timing circuit, and a phase comparison circuit. The multiphase clock generation circuit receives an external clock to provide multiple first clock signals with differing phases. The DLL circuit receives the external clock signal to provide a second clock signal. The timing circuit processes the second clock signal and a comparison signal to generate multiple indication signals, each having rising edges that lead the corresponding first clock signals.

Career Highlights

Chien-Yi Chang has worked with prominent companies in the semiconductor industry, including Elite Semiconductor Memory Technology, Inc. and Elite Semiconductor Microelectronics Technology Inc. His experience in these organizations has contributed to his development as an inventor and innovator in electronic circuits.

Collaborations

Chien-Yi has collaborated with notable colleagues such as Ming-Chien Huang and Chung-Hsien Hua. Their teamwork has likely fostered an environment of innovation and creativity in their projects.

Conclusion

Chien-Yi Chang's contributions to the field of electronics through his patents and collaborations highlight his role as a significant inventor. His work continues to influence advancements in circuit design and technology.