Company Filing History:
2 out of 2,247 
1 out of 21,351 
Years Active: 1996-2001
Title: Mayumi Hada: Innovator in Semiconductor Manufacturing
Introduction
Mayumi Hada is a prominent inventor based in Niigata, Japan. She has made significant contributions to the field of semiconductor manufacturing, holding a total of 3 patents. Her innovative methods have advanced the production processes in this critical technology sector.
Latest Patents
One of her latest patents is a method and apparatus for manufacturing semiconductor devices. This method involves dry-etching a refractory metal layer using a resist pattern as a mask, which results in the formation of a first electrode pattern made of refractory metal. The sidewall of this electrode pattern is then cleaned using an aqueous solution of a surface-active agent, effectively removing any etching residue. Another notable patent is a method of producing semiconductor devices that includes applying a conductive metal film on a semiconductor wafer. This process utilizes a photoresist and a specialized removing agent, ensuring the production of highly accurate wiring circuits without corrosion of the conductive metal film.
Career Highlights
Throughout her career, Mayumi Hada has worked with notable companies such as Mitsubishi Gas Chemical Company, Inc. and Mitsubishi Electric Corporation. Her experience in these organizations has allowed her to refine her skills and contribute to groundbreaking advancements in semiconductor technology.
Collaborations
Mayumi has collaborated with esteemed colleagues, including Ryuji Hasemi and Hidetoshi Ikeda. Their combined expertise has fostered innovation and development in their respective fields.
Conclusion
Mayumi Hada's contributions to semiconductor manufacturing exemplify her dedication to innovation and excellence. Her patents reflect her commitment to advancing technology and improving production methods.