Company Filing History:
11 out of 4,549 
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Years Active: 1994-2019
Title: The Innovative Journey of Perumal Ratnam in Memory Technology
Introduction
Perumal Ratnam, based in Fremont, California, is a prominent inventor with a notable portfolio of 23 patents. His contributions primarily focus on advanced memory technologies, which have significantly impacted the landscape of semiconductor design and memory architecture.
Latest Patents
Perumal Ratnam's recent innovations include several groundbreaking patents. One of his latest patents describes "Barrier modulated cell structures with intrinsic vertical bit line architecture." This invention outlines systems and methods aimed at reducing leakage currents through unselected memory cells in a memory array. The technology involves setting an adjustable resistance bit line structure into a high resistance or non-conducting state during memory operations, which includes a unique design of a polysilicon portion connected to select gate portions.
Another significant patent is centered on "Multi-gate vertical field effect transistors with channel strips laterally confined by gate dielectric layers." This innovative design forms a matrix rail structure over a substrate and employs a two-dimensional array of vertical field effect transistors, crucial for providing access transistors in advanced memory devices. Both inventions illustrate Ratnam's expertise in creating efficient and high-performance memory solutions.
Career Highlights
Throughout his career, Perumal Ratnam has made substantial contributions while working for industry leaders such as SanDisk Technologies Inc. and Alliance Semiconductor Corporation. His experience in these organizations has undoubtedly played a critical role in shaping his inventive capabilities and technological advancements in memory architecture.
Collaborations
Perumal has collaborated with notable professionals including Christopher John Petti and Tianhong Yan. These partnerships have contributed to the rich exchange of ideas and the development of innovative solutions in the semiconductor field.
Conclusion
Perumal Ratnam exemplifies the spirit of innovation in the technology sector. With a significant number of patents to his name and a commitment to enhancing memory technology, his contributions will likely continue to influence future advancements in the industry. His work not only highlights his individual talent but also underscores the importance of collaboration and experience in driving technological progress.