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    • 60. 发明申请
    • COMPACT CMOS DEVICE ISOLATION
    • 紧凑的CMOS器件隔离
    • US20150380413A1
    • 2015-12-31
    • US14320451
    • 2014-06-30
    • Alpha and Omega Semiconductor Incorporated
    • Shekar Mallikarjunaswamy
    • H01L27/092H01L29/06H01L21/8238
    • H01L29/0646H01L21/761H01L21/823878H01L21/823892H01L27/0928H01L29/1083
    • An integrated circuit includes a first well of the first conductivity type formed in a semiconductor layer where the first well housing active devices and being connected to a first well potential, a second well of a second conductivity type formed in the semiconductor layer and encircling the first well where the second well housing active devices and being connected to a second well potential, and a buried layer of the second conductivity type formed under the first well and overlapping at least partially the second well encircling the first well. In an alternate embodiment, instead of the buried layer, the integrated circuit includes a third well of the second conductivity type formed in the semiconductor layer where the third well contains the first well and overlaps at least partially the second well encircling the first well.
    • 集成电路包括形成在半导体层中的第一导电类型的第一阱,其中第一阱容纳有源器件并连接到第一阱电位,形成在半导体层中的第二导电类型的第二阱并且环绕第一阱电位 其中第二阱壳体有源器件并连接到第二阱电位,以及形成在第一阱下面并且至少部分地覆盖环绕第一阱的第二阱的第二导电类型的掩埋层。 在替代实施例中,代替埋层,集成电路包括形成在半导体层中的第二导电类型的第三阱,其中第三阱包含第一阱并且至少部分地重叠包围第一阱的第二阱。