Risaku Toda

Title: Innovations of Risaku Toda in Semiconductor Technology

Introduction

Risaku Toda is a prominent inventor based in Glendale, CA (US), known for his contributions to semiconductor technology. He holds a total of 5 patents, showcasing his innovative approach to solving complex engineering challenges in the field.

Latest Patents

One of his latest patents is a wafer-to-wafer alignment method. This invention utilizes a silicon alignment pin designed to align successive layers of components made in semiconductor chips and/or metallic components. The alignment pin is a compressible structure that can be squeezed to reduce its outer diameter. One end of the pin fits into a corresponding alignment pocket or cavity defined in a layer of material, facilitating the assembly of devices with a layered structure. Once inserted, the pin expands to create an interference fit with the cavity. The other end can then be inserted into a corresponding cavity in a second layer of material, ensuring that both layers are in registry when the pin is mated to both. This method allows for the assembly of multiple layers to create a multilayer structure, with various examples of such devices presented.

Another significant patent by Risaku Toda is titled "Silicon alignment pins: an easy way to realize a wafer-to-wafer alignment." This patent reiterates the innovative use of silicon alignment pins for aligning successive layers of components in semiconductor chips and metallic components. The compressible structure of the pin allows for easy insertion and secure fitting, streamlining the assembly process of layered devices.

Career Highlights

Risaku Toda is affiliated with the California Institute of Technology, where he continues to push the boundaries of semiconductor technology. His work has significantly impacted the efficiency and effectiveness of assembling multilayer structures in various electronic devices.

Collaborations

Throughout his career, Risaku has collaborated with notable colleagues, including Harish M Manohara and Cecile D Jung-Kubiak. These collaborations have further enriched his research and development efforts in the field.

Conclusion

Risaku Toda's innovative contributions to semiconductor technology, particularly through his patented alignment methods, demonstrate his expertise and commitment to advancing the industry. His work continues to influence the design and assembly of complex electronic devices, paving the way for future innovations.