Company Filing History:
2 out of 12,881 
2 out of 832,812 Years Active: 2001-2006
Title: Michael S C Chung: Innovator in Flash Memory Technology
Introduction
Michael S C Chung is a notable inventor based in San Jose, CA. He holds 4 patents that contribute significantly to the field of flash memory technology. His innovative work has paved the way for advancements in memory cell operations and voltage control.
Latest Patents
One of his latest patents is a "Switched-capacitor controller to control the rise times of on-chip generated high voltages." This invention accurately controls the rise time of high voltage generated on-chip, utilizing an on-chip charge pump to produce a high voltage (VPP) from an external power supply voltage (VCC). The high voltage signal can be employed to program Flash memory cells. The switched capacitor circuit generates a stair-stepped ramp function, with the period of the steps controlled by a clock signal. The rise-time of the ramp function is regulated by a reference voltage and the ratio of two capacitor values.
Another significant patent is the "Drain side sensing scheme for virtual ground flash EPROM array with adjacent bit charge and hold." This system provides an indication of the logical state of a flash memory cell during virtual ground flash memory operations. It includes a bit line charge and hold circuit that applies a read sense voltage to a bit line associated with the drain terminal of a cell adjacent to the one being sensed. This innovative approach ensures that the logical state indication is largely independent of charge sharing leakage current from adjacent cells.
Career Highlights
Michael has worked with Advanced Micro Devices Corporation, where he contributed to the development of cutting-edge technologies in the semiconductor industry. His experience in this field has allowed him to refine his skills and innovate in memory technology.
Collaborations
Throughout his career, Michael has collaborated with talented individuals such as Santosh K Yachareni and Kazuhiro Kurihara. These collaborations have fostered an environment of innovation and creativity, leading to significant advancements in their respective fields.
Conclusion
Michael S C Chung is a distinguished inventor whose contributions to flash memory technology have made a lasting impact. His patents reflect his commitment to innovation and excellence in the field.