Mealey's (April 13, 2018, 8:39 AM EDT) -- ALEXANDRIA, Va. — In a final written decision issued April 11, the Patent Trial and Appeal Board agreed with inter partes review (IPR) petitioner Samsung Electronics Co. Ltd. that 21 claims of a patent relating to the semiconductor fabrication process are unpatentable under Sections 102 and 103 of the Patent Act, 35 U.S.C. § 102(b), 103(a) (Samsung Electronics Co. Ltd. v. Promos Technologies Inc., No. IPR2017-00037, PTAB)....