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    • 5. 发明申请
    • ELECTROSTATIC DISCHARGE PROTECTION DEVICE AND ELECTRONIC DEVICE HAVING THE SAME
    • 静电放电保护装置和具有该静电放电保护装置的电子装置
    • US20160163690A1
    • 2016-06-09
    • US14809299
    • 2015-07-27
    • Jae-Hyok KoHan-Gu KimHan-Gu KimJong-Kyu SongJin Heo
    • Jae-Hyok KoHan-Gu KimHan-Gu KimJong-Kyu SongJin Heo
    • H01L27/02H01L29/06H01L29/36H01L29/10
    • H01L27/0262H01L27/027
    • In an ESD protection device, a first well of a first conductivity type and a second well of a second conductivity type are formed in a substrate to contact each other. A first impurity region of the first conductivity type and a second impurity region of the second conductivity type are formed in the first well, and are electrically connected to a first electrode pad. The second impurity region is spaced apart from the first impurity region in a direction of the second well. A third impurity region is formed in the second well, has the second conductivity type, and is electrically connected to a second electrode pad. A fourth impurity region is formed in the second well, is located in a direction of the first well from the third impurity region to contact the third impurity region, has the first conductivity type, and is electrically floated.
    • 在ESD保护装置中,第一导电类型的第一阱和第二导电类型的第二阱形成在基板中以彼此接触。 第一导电类型的第一杂质区和第二导电类型的第二杂质区形成在第一阱中,并且电连接到第一电极焊盘。 第二杂质区域在第二阱的方向上与第一杂质区间隔开。 在第二阱中形成第三杂质区,具有第二导电类型,并且电连接到第二电极焊盘。 在第二阱中形成第四杂质区,位于第一阱的从第三杂质区方向接触第三杂质区,具有第一导电类型,并且是电漂浮的。