Company Filing History:
2 out of 8 
2 out of 3,783 
1 out of 1 Years Active: 2002-2009
Title: Yassin Mehmandoust: Innovator in Substrate Preparation Technologies
Introduction
Yassin Mehmandoust is a prominent inventor based in Santa Cruz, California, known for his significant contributions to substrate preparation technologies. With a total of seven patents to his name, Mehmandoust has developed innovative solutions that enhance the efficiency and effectiveness of cleaning and drying substrates used in various applications, including semiconductor manufacturing and data storage devices.
Latest Patents
Among his latest patents is the "Integrated megasonic cascade scrubber module and process." This invention focuses on substrate preparation systems that utilize multi-zone cascade brush scrubbers equipped with sonic assemblies. These systems are designed for cleaning disk-shaped substrates, such as silicon wafers and disks for hard disk drives, compact discs, and digital video discs. The method integrates a sonic particle dislodgement and removal assembly into a cascade brush scrubber line, allowing substrates to be processed through defined preparation zones while rotating on an axis normal to their faces. The use of piezoelectric transducer arrays enables the transmission of sound energy to dislodge and remove particles effectively.
Another notable patent is the "Apparatus and method for drying a substrate using hydrophobic and polar organic compounds." This invention describes a dryer that includes a bath containing a fluid, a chamber, and a delivery system for supplying polar and hydrophobic organic compounds. The drying method involves immersing a substrate in a fluid, removing it into a chamber, and supplying isopropyl alcohol and hydrofluoroether to facilitate drying. The system also features a chamber environment control system that manages temperature and humidity, ensuring optimal drying conditions.
Career Highlights
Yassin Mehmandoust has worked with several notable companies throughout his career, including Oliver Design, Inc. and Lam Research Corporation. His experience in these organizations has contributed to his expertise in substrate preparation technologies and has allowed him to develop innovative solutions that address industry challenges.
Collaborations
Throughout his career, Mehmandoust has collaborated with talented individuals, including Donald Edgar Stephens and Scott T. Petersen. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the field.
Conclusion
Yassin Mehmandoust's contributions to substrate preparation technologies through his innovative patents have significantly impacted the industry. His work continues to influence advancements in cleaning and drying processes for various applications, showcasing his dedication to innovation and excellence.