This inventor holds 5 USPTO granted patents. Top assignees: Silicon Perspective Corporation, Cadence Design Systems, Inc.. Active years: 2001-2005.
Company Filing History:
3 out of 5 
2 out of 2,614 
Years Active: 2001-2005
Title: Mitsuru Igusa: Innovator in Integrated Circuit Layout Systems
Introduction
Mitsuru Igusa is a prominent inventor based in Los Gatos, CA, known for his significant contributions to the field of integrated circuit (IC) design. With a total of 5 patents to his name, he has developed innovative systems that enhance the efficiency and effectiveness of IC layout processes.
Latest Patents
One of Igusa's latest patents is an IC layout system employing a hierarchical database by updating the cell library. This system compiles a hierarchical netlist describing an IC into a database that maintains separate records for each cell and module. It references a cell library entry for each cell or module and indicates hierarchical relationships among them. The system processes the database to reduce the number of records by combining related cells and modules into larger clusters. It generates a trial layout that positions interconnected cells close to each other, regardless of the design's hierarchical nature. Additionally, it divides the IC design into partitions and estimates the substrate area needed for each based on the trial layout. Another notable patent is the IC layout system having separate trial and detailed routing phases. This process generates a preliminary placement plan and a trial routing plan, which are iteratively analyzed to meet various design constraints. The trial routing plan is then converted into a detailed routing plan, ensuring that all design requirements are satisfied.
Career Highlights
Igusa has worked with notable companies in the industry, including Silicon Perspective Corporation and Cadence Design Systems, Inc. His experience in these organizations has allowed him to refine his skills and contribute to advancements in IC design.
Collaborations
Throughout his career, Igusa has collaborated with talented individuals such as Wei-Jin Dai and Wei-Lun Kao. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Mitsuru Igusa's work in integrated circuit layout systems showcases his expertise and commitment to innovation in the field. His patents reflect a deep understanding of the complexities involved in IC design, making him a valuable contributor to the industry.