The opinion in support of the decision being entered today was not written for publication and is not binding precedent of the Board. Paper No. 11 UNITED STATES PATENT AND TRADEMARK OFFICE ____________ BEFORE THE BOARD OF PATENT APPEALS AND INTERFERENCES ____________ Ex parte JOSEPH T. EVANS, JR., WILLIAM L. WARREN, and BRUCE A. TUTTLE ____________ Appeal No. 1997-3915 Application No. 08/640,572 ____________ ON BRIEF ____________ Before THOMAS, JERRY SMITH, and GROSS, Administrative Patent Judges. GROSS, Administrative Patent Judge. DECISION ON APPEAL This is a decision on appeal from the examiner's final rejection of claim 1, which is the only claim pending in this application. Appellants' invention relates to a ferroelectric FET structure having a ferroelectric layer doped to reduce retention loss. In particular, the ferroelectric layer has a perovskite structure with A and B sites and has a chemical composition ofPage: 1 2 3 4 5 6 7 8 NextLast modified: November 3, 2007