I-Hsien Chen

Title: I-Hsien Chen: Innovator in Noise Characterization and Analysis

Introduction

I-Hsien Chen is a prominent inventor based in San Jose, CA, known for his contributions to the field of circuit simulation and noise characterization. With a total of 2 patents, he has made significant advancements that enhance the reliability and performance of integrated circuits.

Latest Patents

Chen's latest patents include "Shape Based Noise Characterization and Analysis of LSI" and "Shape Based Noise Tolerance Characterization and Analysis of LSI." The first invention allows for the inclusion of cross-talk coupling and other noise in circuit simulation by considering a resultant glitch in more detail than just its peak value. A set of parameters represents the noise, utilizing a triangle approximation to a glitch based on three key parameters: the peak voltage value, the leading edge slope, and the trailing edge slope. These values serve as input stimuli to a given cell instance in the network, where the resulting propagated noise values are determined through simulation. The results can be stored as a library, enabling simulations to determine propagated noise through a look-up process. To optimize space requirements, the dimensionality of the look-up tables can be reduced by introducing auxiliary functions to offset errors from this reduction.

The second patent presents techniques for assessing whether the effects of cross-talk coupling and other noise exceed the noise tolerance of a circuit. This invention also employs a set of parameters to represent noise, using triangle or trapezoidal approximations based on parameters such as peak voltage value, width, leading edge slope, and trailing edge slope. These values are utilized as input for a library to look up corresponding noise tolerance parameter set values. In a variation, a set of formulae can provide these values, which include the minimum peak value and minimum width value for noise to be potentially harmful.

Career Highlights

I-Hsien Chen is currently employed at Cadence Design Systems, Inc., where he continues to innovate in the field of electronic design automation. His work focuses on improving circuit simulation techniques and enhancing the understanding of noise effects in integrated circuits.

Collaborations

Throughout his career, Chen has collaborated with notable colleagues, including Lifeng Wu and Jianlin Wei, contributing to advancements in their shared field of expertise.

Conclusion

I-Hsien Chen's innovative work in noise characterization and analysis has made a significant impact on the