Company Filing History:
5 out of 297 
1 out of 832,680 Years Active: 2001-2005
Title: James A. Dirksen: Innovator in Substrate Polishing Technologies
Introduction
James A. Dirksen is a notable inventor based in Oswego, IL (US). He has made significant contributions to the field of substrate polishing and planarization, holding a total of 6 patents. His work has been instrumental in advancing technologies that enhance the efficiency and effectiveness of surface treatment processes.
Latest Patents
Among his latest patents, Dirksen has developed a method of polishing or planarizing a substrate. This method involves abrading a portion of the surface of a substrate made of metal, metal oxide, or metal composite using a specific composition. This composition includes a metal oxide abrasive and a liquid carrier, with a pH of about 7 or less. The metal oxide abrasive is characterized by a total surface hydroxyl group density of no greater than about 3 hydroxyl groups per nm. Another significant patent focuses on a composition and method for planarizing surfaces. This composition comprises a liquid carrier, a chemical accelerator, and solids that include fumed metal oxide and abrasive particles. The innovative approach ensures high polishing efficiency, uniformity, and removal rate while minimizing defects.
Career Highlights
Dirksen has worked with Cabot Microelectronics Corporation, where he has contributed to the development of advanced polishing technologies. His expertise in the field has led to the creation of solutions that address the challenges faced in substrate polishing.
Collaborations
Throughout his career, Dirksen has collaborated with notable professionals, including Brian L. Mueller and Mingming Fang. These collaborations have further enriched his work and contributed to the advancements in substrate polishing technologies.
Conclusion
James A. Dirksen's innovative contributions to substrate polishing and planarization have established him as a key figure in the field. His patents reflect a commitment to enhancing surface treatment processes, making significant strides in technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.