This inventor holds 2 USPTO granted patents. Top assignee: Memc Electronic Materials, Inc.. Active years: 2002-2004.
Company Filing History:
Years Active: 2002-2004
Title: Jiri L Vasat: Innovator in Semiconductor Manufacturing
Introduction
Jiri L Vasat is a notable inventor based in Chesterfield, MO (US), recognized for his contributions to semiconductor manufacturing. With a total of 2 patents, he has made significant advancements in the production of silicon wafers, which are essential components in the electronics industry.
Latest Patents
Vasat's latest patents include a thermal annealing process for producing silicon wafers with improved surface characteristics. This innovative process reduces the size of surface and sub-surface defects without forming excessive haze. It involves cleaning the front surface of the silicon wafer at a temperature of at least about 1100°C by exposing it to a cleaning ambient comprising H, HF gas, or HCl gas. This method effectively removes silicon oxide from the front surface and facilitates the migration of silicon atoms to the exposed agglomerated defects.
Another significant patent is the semiconductor wafer manufacturing process, which simplifies the polishing required while producing high-quality semiconductor wafers. After slicing a semiconductor wafer from a single crystal ingot, it undergoes a double side fine grinding operation, a micro-etching operation, and an annealing operation. This process significantly enhances the quality of the front surface, culminating in a flash polishing step that imparts a specular finish.
Career Highlights
Jiri L Vasat is currently associated with Memc Electronic Materials, Inc., where he applies his expertise in semiconductor technology. His work has contributed to the advancement of manufacturing processes that enhance the quality and efficiency of semiconductor wafers.
Collaborations
Throughout his career, Vasat has collaborated with notable colleagues, including Andrei Stefanescu and Gregory M Wilson. These collaborations have fostered innovation and development in the field of semiconductor manufacturing.
Conclusion
Jiri L Vasat's contributions to semiconductor manufacturing through his innovative patents and collaborative efforts have significantly impacted the industry. His work continues to pave the way for advancements in technology and manufacturing processes.