ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,172, issued on July 28, was assigned to Heraeus Covantics North America LLC (Chandler, Ariz.).
"High purity cordierite material for semiconductor applications" was invented by Luke Walker (Chandler, Ariz.), Saurav Bista (Chandler, Ariz.), Matthew Joseph Donelon (Chandler, Ariz.) and Steven Roger Kennedy (Chandler, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a cordierite sintered body comprising from 90 to 98% by volume of a cordierite crystal phase as measured using x ray diffraction, SEM and image processing methods wherein the cordierite sintered body has at least one surface comprising pores having a diameter of from 0.1 to ...