US Patent Issued to DUPONT ELECTRONIC MATERIALS INTERNATIONAL on April 29 for "Underlayer compositions and patterning methods" (Massachusetts, New Hampshire Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,576, issued on April 29, was assigned to DUPONT ELECTRONIC MATERIALS INTERNATIONAL LLC (Marlborough, Mass.).

"Underlayer compositions and patterning methods" was invented by Joshua Kaitz (Watertown, Mass.), Sheng Liu (Bow, N.H.), Li Cui (Westborough, Mass.), Shintaro Yamada (Shrewsbury, Mass.), James F. Cameron (Brookline, Mass.), Emad Aqad (Northborough, Mass.), Iou-Sheng Ke (Andover, Mass.) and Suzanne M. Coley (Mansfield, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An underlayer composition, comprising a polymer comprising a repeating unit of formula (1):wherein Ar is a monocyclic or polycyclic C5-60 aromatic group, wherein the aromatic g...