公开(公告)号：WO2008064172A2

公开(公告)日：2008-05-29

申请号：PCT/US2007/085129

申请日：2007-11-19

Applicant: QUALCOMM Incorporated ,  CHAI, Chiaming ,  HOFF, David, Paul ,  MARTZLOFF, Jason, Philip ,  PHAN, Michael, Thaithanh ,  VARMA, Manju, Rathna

Inventor： CHAI, Chiaming ,  HOFF, David, Paul ,  MARTZLOFF, Jason, Philip ,  PHAN, Michael, Thaithanh ,  VARMA, Manju, Rathna

IPC: H01L21/8239 ,  H01L27/02 ,  H01L27/105 ,  G11C15/04

CPC classification number: H01L27/105 ,  G11C11/412 ,  G11C15/00 ,  G11C15/04 ,  H01L21/8221 ,  H01L27/0207 ,  H01L27/0688 ,  H01L27/1052

Abstract: A content addressable memory (CAM) is disclosed. The CAM has first and second CAM cells in which each adjacent CAM cell is rotated 180° relative to its neighbor, which provides a compact physical arrangement having overall matched CAM array cell and RAM array cell row heights. Further, an interleaved set scheme can be applied to the CAM cells to provide reduced routing of compare signals and reduced parasitic capacitance.

Abstract translation: 公开了内容可寻址存储器（CAM）。 CAM具有第一和第二CAM单元，其中每个相邻的CAM单元相对于其邻居旋转180°，这提供了具有整体匹配的CAM阵列单元和RAM阵列单元行高度的紧凑的物理布置。 此外，交错集合方案可以应用于CAM单元，以提供比较信号的降低的路由以及降低的寄生电容。

公开(公告)号：WO2008064172A3

公开(公告)日：2009-01-08

申请号：PCT/US2007085129

申请日：2007-11-19

Applicant: QUALCOMM INC ,  CHAI CHIAMING ,  HOFF DAVID PAUL ,  MARTZLOFF JASON PHILIP ,  PHAN MICHAEL THAITHANH ,  VARMA MANJU RATHNA

Inventor： CHAI CHIAMING ,  HOFF DAVID PAUL ,  MARTZLOFF JASON PHILIP ,  PHAN MICHAEL THAITHANH ,  VARMA MANJU RATHNA

IPC: H01L21/8239 ,  G11C15/04 ,  H01L21/822 ,  H01L27/02 ,  H01L27/06 ,  H01L27/105

CPC classification number: H01L27/105 ,  G11C11/412 ,  G11C15/00 ,  G11C15/04 ,  H01L21/8221 ,  H01L27/0207 ,  H01L27/0688 ,  H01L27/1052

Abstract: A content addressable memory (CAM) is disclosed. The CAM has first and second CAM cells (710, 720, 730, 740) in which each adjacent CAM cell is rotated 180 relative to its neighbor, which provides a compact physical arrangement having overall matched CAM array cell and RAM array cell row heights. Further, an interleaved set scheme can be applied to the CAM cells to provide reduced routing of compare signals and reduced parasitic capacitance. The first and second CAM cells may be vertically stacked.

Abstract translation: 公开了内容可寻址存储器（CAM）。 CAM具有第一和第二CAM单元（710,720,730,740），其中每个相邻的CAM单元相对于其邻居旋转180°，这提供了具有整体匹配的CAM阵列单元和RAM阵列单元行高度的紧凑的物理布置。 此外，交错集合方案可以应用于CAM单元，以提供比较信号的降低的路由以及降低的寄生电容。 第一和第二CAM单元可以垂直堆叠。