This inventor holds 2 USPTO granted patents. Top assignee: Winbond Electronics Corporation. Active years: 2000-2009.
Company Filing History:
Years Active: 2000-2009
Title: Chi-Hung Chao: Innovator in Non-Volatile Memory Technology
Introduction
Chi-Hung Chao is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of non-volatile memory technology. With a total of 2 patents, his work has advanced the capabilities of memory storage solutions.
Latest Patents
Chi-Hung Chao's latest patents include a manufacturing method of non-volatile memory. This invention features a nonvolatile memory structure that consists of a substrate, a dielectric layer, word lines, word gates, conductive spacers, an electron trapping layer, an insulation layer, and buried bit lines. The dielectric layer is positioned on the substrate and contains several poly trenches. The word lines are arranged over the substrate across these poly trenches, while the word gates are located within the trenches. The conductive spacers are situated between the word gates and the inner walls of each poly trench. Additionally, the electron trapping layer is placed between the conductive spacers and the inner walls of the trenches, as well as between the spacers and the substrate. The insulation layer is positioned between the conductive spacers and the word gates, and the buried bit lines are embedded in the substrate between the poly trenches.
Another notable patent is the method of making a self-aligned flash memory cell to prevent source line issues. This process allows for the creation of stacked gate memory cells without requiring the extra thermal cycle typical of conventional methods. The steps include forming a silicon nitride layer on a wafer surface, applying a diffusion pattern mask, and using the remaining silicon nitride as a mask to grow a field oxide layer. This innovative approach results in interconnected field oxide bird's beaks that enhance the memory cell's performance.
Career Highlights
Chi-Hung Chao is currently employed at Winbond Electronics Corporation, where he continues to develop cutting-edge memory technologies. His expertise in non-volatile memory has positioned him as a key player in the industry.
Collaborations
Some of his notable coworkers include Bin-Shing Chen and Hsiu-Han Liao, who contribute to the innovative environment at Winbond Electronics Corporation.
Conclusion
Chi-Hung Chao's contributions to non-volatile memory technology exemplify his dedication to innovation in the field. His patents reflect a deep understanding of memory systems and their complexities. Through