公开(公告)号：US5268312A

公开(公告)日：1993-12-07

申请号：US964700

申请日：1992-10-22

申请人： Robert H. Reuss ,  David J. Monk ,  Christopher P. Dragon

发明人： Robert H. Reuss ,  David J. Monk ,  Christopher P. Dragon

IPC分类号： H01L21/761 ,  H01L21/8249 ,  H01L27/06 ,  H01L21/266

CPC分类号： H01L21/8249 ,  H01L21/761 ,  H01L27/0623

摘要： A junction isolated P-well is formed for high performance BiCMOS. Two dopants of opposite conductivity types are implanted and co-diffused inside an annular N-type region to form a narrow N-type buried layer positioned between two P-type regions. N-type buried layer is formed having P-type doped regions above and below the N-type buried layer so that the N-type buried layer is narrow. The P-type region above the N-type buried layer provides for a retrograde profile of the P-well formed above it. Besides the P-well isolation, the P-type region below the N-type buried layer acts as a ground plane which collects noise, which helps to prevent it from being coupled to other devices of the BiCMOS circuit.

摘要翻译： 形成了用于高性能BiCMOS的结隔离P阱。 相反导电类型的两种掺杂剂被注入并共扩散在环形N型区域内以形成位于两个P型区域之间的窄N型掩埋层。 N型掩埋层在N型掩埋层的上方和下方形成有P型掺杂区域，使得N型掩埋层窄。 N型掩埋层上方的P型区域提供了形成在其上的P阱的逆行剖面。 除了P阱隔离之外，N型掩埋层以下的P型区域用作收集噪声的接地平面，这有助于防止其耦合到BiCMOS电路的其他器件。

公开(公告)号：US5138583A

公开(公告)日：1992-08-11

申请号：US704231

申请日：1991-05-22

申请人： Cameron B. Wason ,  David J. Monk ,  Robert G. McBeath

发明人： Cameron B. Wason ,  David J. Monk ,  Robert G. McBeath

IPC分类号： G01V1/36

CPC分类号： G01V1/364 ,  G01V2210/3246 ,  G01V2210/3248

摘要： A method for attenuating coherent and incoherent noise in seismic signal data is provided. Seismic signal data is transformed from a time-space domain using a Radon-transform domain. In the Radon-transform domain, coherent noise is attenuated by muting and incoherent noise is attenuated by diversity stacking. Data remaining in the Radon-transform domain in transformed back to the time-space domain by an inverse Radon transform.