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    • 9. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2013183087A
    • 2013-09-12
    • JP2012046825
    • 2012-03-02
    • Renesas Electronics Corpルネサスエレクトロニクス株式会社
    • MORISHITA YASUYUKI
    • H01L21/822H01L21/8228H01L27/04H01L27/06H01L27/082H01L29/74
    • H01L27/0262H01L29/0649H01L29/0692H01L29/74H01L29/7436
    • PROBLEM TO BE SOLVED: To enhance a degree of freedom of layout design in a semiconductor device including a thyristor element as an electrostatic protection circuit.SOLUTION: A semiconductor device includes: a first first-conductivity-type well (NW1) that is formed to extend in a first direction (horizontal direction) parallel to a substrate; a second first-conductivity-type well (NW2a) that is formed to extend in a second direction (vertical direction) parallel to the substrate and orthogonal to the first direction and whose one end is connected to a long side of the first first-conductivity-type well (NW1); a second-conductivity-type well (PW) that is formed around the first first-conductivity-type well (NW1) and the second first-conductivity-type well (NW2a); a first high-concentration second-conductivity-type region (PP1a) that is formed for a surface of the second first-conductivity-type well (NW2) to extend in the second direction; and a first high-concentration first-conductivity-type region (NP1a) that is formed for a surface of the second-conductivity-type well (PW) to extend in the second direction while opposing the first high-concentration second-conductivity-type region (PP1a).
    • 要解决的问题:提高包括作为静电保护电路的可控硅元件的半导体器件中的布局设计的自由度。解决方案:一种半导体器件包括:第一第一导电型阱(NW1),形成为 沿与基板平行的第一方向(水平方向)延伸; 第二导电型阱(NW2a),其形成为在与基板平行的第二方向(垂直方向)上延伸并且与第一方向正交并且其一端连接到第一第一导电性的长边 型井(NW1); 围绕第一第一导电型阱(NW1)和第二第一导电型阱(NW2a)形成的第二导电型阱(PW); 形成为在第二方向上延伸的第二第一导电型阱(NW2)的表面的第一高浓度第二导电型区域(PP1a) 和形成于所述第二导电型阱(PW)的表面的第一高浓度第一导电型区域(NP1a),在与所述第一高浓度第二导电型 区域(PP1a)。