公开(公告)号：US06316975B1

公开(公告)日：2001-11-13

申请号：US09161511

申请日：1998-09-28

申请人： James E. O'Toole ,  John R. Tuttle ,  Mark E. Tuttle ,  Tyler Lowery ,  Kevin M. Devereaux ,  George E. Pax ,  Brian P. Higgins ,  David K. Ovard ,  Robert R. Rotzoll ,  Shu-Sun Yu

发明人： James E. O'Toole ,  John R. Tuttle ,  Mark E. Tuttle ,  Tyler Lowery ,  Kevin M. Devereaux ,  George E. Pax ,  Brian P. Higgins ,  David K. Ovard ,  Robert R. Rotzoll ,  Shu-Sun Yu

IPC分类号： H04L700

CPC分类号： G06K19/0716 ,  G06K7/0008 ,  G06K7/10059 ,  G06K19/0707 ,  G06K19/0712 ,  G06K19/0723 ,  G06K19/0726 ,  G06K19/07749 ,  G06K19/07758 ,  G06K2017/0051 ,  H01Q1/2225 ,  H03L7/0995 ,  H03L7/148

摘要： A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.

公开(公告)号：US20060063297A1

公开(公告)日：2006-03-23

申请号：US11272308

申请日：2005-11-10

申请人： Daniel Xu ,  Tyler Lowery

发明人： Daniel Xu ,  Tyler Lowery

IPC分类号： H01L21/00

CPC分类号： H01L45/06 ,  G11C13/0004 ,  G11C2213/72 ,  H01L27/2409 ,  H01L45/1233 ,  H01L45/144 ,  Y10S257/91

摘要： A memory cell including a phase-change material may have reduced leakage current. The cell may receive signals through a buried wordline in one embodiment. The buried wordline may include a sandwich of a more lightly doped N type region over a more heavily doped N type region over a less heavily doped N type region. As a result of the configuration of the N type regions forming the buried wordline, the leakage current of the buried wordline to the substrate under reverse bias conditions may be significantly reduced.