US Patent Issued to TREDEGAR SURFACE PROTECTION on Feb. 17 for "Carrier film for semi-conductor wafer processing" (Virginia, Illinois Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,975, issued on Feb. 17, was assigned to TREDEGAR SURFACE PROTECTION LLC (N. Chesterfield, Va.).

"Carrier film for semi-conductor wafer processing" was invented by Surya Ssubramaniam (Richmond, Va.), Carl Douglas Ray (Chesterfield, Va.) and Kevin A. Brady (Cary, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A carrier film includes an adhesive layer, a core layer, and a release layer. The adhesive layer includes a hydrogenated styrene block copolymer having a storage modulus (G') of less than or equal to 400 kPa at 25deg C., and a first polyolefin elastomer. The core layer includes a second polyolefin elastomer, and the release layer includes a ...