Company Filing History:
2 out of 52,766 
1 out of 832,912 Years Active: 2000-2003
Title: Hiroshi Ohtani - Pioneering Innovator in Semiconductor Technology
Introduction
Hiroshi Ohtani is an accomplished inventor based in Yokohama, Japan, known for his significant contributions to the field of semiconductor technology. With a patent portfolio comprising three innovative patents, Ohtani continues to push the boundaries of manufacturing methods that enhance semiconductor performance and reliability.
Latest Patents
Among his latest patents, Ohtani developed a semiconductor device manufacturing method aimed at reducing process-induced stress and crystalline defects. This innovative method specifically targets the dislocations produced during the formation of shallow trench isolation regions in a semiconductor substrate. The technique involves annealing the semiconductor substrate in an N ambient pressure with an oxygen partial pressure of less than about 10 at a temperature range of approximately 950°C to 1055°C. Additionally, he proposed a method to diminish crystalline defects in semiconductor manufacturing by depositing metal on an insulator to create metal silicide. This method entails etching the insulator to create an overhang that results in a void between the semiconductor substrate and the insulator, ultimately enhancing the formation of metal silicide on the substrate surface.
Ohtani's inventive prowess also extends to designing dummy wiring on chips. His approach involves for laying out wiring of non-uniform density, virtually dividing the chip into multiple sub-chips, and analyzing the density distribution function of wiring. He subsequently creates an index to identify variations in the wiring density, ensuring that it falls within an allowable range through iterative updates of the density distribution function.
Career Highlights
Throughout his career, Hiroshi Ohtani has had the opportunity to work with esteemed companies, including Kabushiki Kaisha Toshiba. His experience at such prominent organizations has played a crucial role in shaping his innovative perspectives and technical skills.
Collaborations
Ohtani has collaborated with skilled professionals, including Minakshisundaran Balasubramanian Anand and Sinji Onga, contributing to advancements in semiconductor technologies. These collaborative efforts have further established Ohtani's reputation as a leading innovator in the industry.
Conclusion
Hiroshi Ohtani's work in semiconductor technology illustrates how innovative methods can significantly elevate manufacturing processes. With a continuous focus on reducing defects and enhancing performance, his contributions are pivotal in the evolution of semiconductor devices. As he moves forward, the industry can expect continued advancements that stem from Ohtani's inventive spirit.