发明名称 |
CONFIGURATION OF GATE TO DRAIN (GD) CLAMP AND ESD PROTECTION CIRCUIT FOR POWER DEVICE BREAKDOWN PROTECTION |
摘要 |
A semiconductor power device supported on a semiconductor substrate comprising a plurality of transistor cells each having a source and a drain with a gate to control an electric current transmitted between the source and the drain. The semiconductor further includes a gate-to-drain (GD) clamp termination connected in series between the gate and the drain further includes a plurality of back-to-back polysilicon diodes connected in series to a silicon diode includes parallel doped columns in the semiconductor substrate wherein the parallel doped columns having a predefined gap. The doped columns further include a U-shaped bend column connect together the ends of parallel doped columns with a deep doped-well that is disposed below and engulfing the U-shaped bend. |
申请公布号 |
US2016027771(A1) |
申请公布日期 |
2016.01.28 |
申请号 |
US201414341789 |
申请日期 |
2014.07.26 |
申请人 |
Su Yi;Bhalla Anup;Ng Daniel |
发明人 |
Su Yi;Bhalla Anup;Ng Daniel |
分类号 |
H01L27/02;H01L27/06 |
主分类号 |
H01L27/02 |
代理机构 |
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代理人 |
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主权项 |
1. A semiconductor power device supported on a semiconductor substrate comprising a plurality of transistor cells each having a source encompassed in a body region and a drain with a gate to control an electric current transmitted between the source and the drain, wherein the semiconductor further comprising:
a clamp termination structure connected in series to a silicon diode comprising a doped column disposed in said semiconductor substrate; and an end well doped with a same conductivity type as the doped column enclosing an end portion of the doped column. |
地址 |
Sunnyvale CA US |